Cloud CV SERIES User manual

CV SERIES DIGITAL AMPLIFIERS
MODELS: CV2500/CV4250/CV6160/CV8125
Installation and User Guide

CV Series Digital Ampliers v1.0
2
WARNING:
 ree te ris  re r eletri s  t epse tis appliae t rai r mistre.
CAUTION:
WARNING: SHOCK HAZARD – DO NOT OPEN
AVIS: RISQUE DE CHOC ÉLECTRIQUE – NE PAS OUVRIR
e ligtig as it te arrea sml iti a eilateral
triagle is itee t alert  t te presee  islate
agers vltages iti te prts elsre tat ma e 
siet magite t stitte a ris  eletri s.
e elamati pit iti a eilateral triagle is itee t
alert te ser t te presee  imprtat peratig a maiteae
serviig istrtis i te literatre ampaig te appliae.

CV Series Digital Ampliers v1.0 3
IMPORTANT SAFETY INSTRUCTIONS
1. ea tese strtis.
. eep tese strtis.
. ee all arigs.
. ll all strtis.
. D t se tis apparats ear ater.
. Clea l it a r lt.
. D t l a vetilati peigs. stall i arae it te maatrers istrtis.
. D t istall ear a eat sres s as raiatrs eat registers stves r ter apparats ilig ampliers tat
pre eat.
. D t eeat te saet prpse  te plarie r grig  tpe plg. A plarie plg as t laes it e ier
ta te ter. A grig tpe plg as t laes a a tir grig prg. e ie lae r te tir prg are
prvie r r saet. e te prvie plg es t t it r tlet slt a eletriia r replaemet 
te slete tlet.
10. rtet te per r rm eig ale  r pie partilarl at plgs veiee reeptales a te pit
ere te eit rm te apparats.
11. l se attametsaessries speie  te maatrer.
12. se l it te art sta trip raet r tale speie  te maatrer r sl it te apparats
e a art is se se ati e mvig te artapparats miati t avi ir rm tipver.
1. plg tis apparats rig ligtig strms r e se r lg peris  time.
1. eer all serviig t alie servie persel. Serviig is reire e te apparats as ee amage i a a
s as persppl r r plg is amage lii as ee spille r ets ave alle it te apparats te
apparats as ee epse t rai r mistre es t perate rmall r as ee rppe.
D t epse te apparats t rippig r splasig a esre tat  ets lle it ater s as vases
are plae  te apparats.
appareil e it tre eps a lemets  a lassres et a et e teat e liie tel
 vase e it tre pla sr lappareil.
e mais plg is se as te iset evie a it sl remai reail aessile rig itee se. 
rer t islate te apparats rm te mais te mais plg sl e mpletel remve rm te mais
tlet set.
e prise  seter e it pas tre stre  it tre ailemet aessile peat s tilisati. r tre
mpltemet et e lalimetati etre la prise it tre rae  seter.

CV Series Digital Ampliers v1.0
4
EU Declaration of Conformity
REACH Directive; it’s expected that our suppliers and business partners be aware of their obligations under REACH. Given
those conditions, our current products are exempt from REACH pre-registration and later registration activities. We provide a
separate EU Reduction of Hazardous Substances document for our RoHS compliant products.
The WEEE directive (2002/96/EC) places an obligation on all manufacturers and importers, trading in the EU, to take back
electronic products at the end of their life. Cloud Electronics Ltd accepts the responsibility to finance the cost of disposing of
such products. All our products are marked with the WEEE symbol; this indicates that these products must NOT be disposed of
with other waste. This document may not be changed or copied without authorisation
DATE OF ISSUE: 12th June 2018
MANUFACTURER: Cloud Electronics Limited
ADDRESS: 140 Staniforth Rd,
Sheffield,
S9 3HF. UK
PRODUCT NAMES: CV8125EK, CV8125NA, CV8125AUS
CV4250EK, CV4250NA, CV4250AUS
CV2500EK, CV2500NA, CV2500AUS
PRODUCT TYPE: Line Amplifier
Cloud Electronics Ltd declare under our sole responsibility that the listed products comply with the
requirements set out in the Council Directive 2014/35/EU for electrical equipment used within certain
voltage limits or Low Voltage Directive (LVD); and with the requirements of directive 2014/30/EU for
Electromagnetic Compatibility (EMC); and the CE Marking Directive 93/68/EEC & RoHS2 Directive
2011/65/EU
For the evaluation of the compliance with these directives the following standards were applied:
Directive 2014/35/EU (electrical equipment designed to be used within certain voltage limits);
Test Specification(s): BS EN62368-1:2014
Directive 2014/30/EU (electromagnetic compatibility);
Test Specification(s): BS EN55035:2017 (Immunity)
BS EN55032:2015 (Emissions)
BS EN61000-3-2:2014 (Harmonics)
Cloud Electronics Ltd declare that the products produced under its brand name are designed and
manufactured as professional audio products and therefore outside of the intended scope of the
European Commission Regulations (EC) 1275/2008 of 17th Dec 2008 implementing Directive
2005/32/EC of the European Parliament and of the Council with regards eco-design requirements for
STANDBY and OFF mode electric power consumption of electrical and office equipment.
Place and Date Issued: Cloud Electronics Limited, 12th June 2018.
Simon Curtis,
Managing Director

CV Series Digital Ampliers v1.0 5
00-VS-F0419, Version 6.0, This is to certify that representative samples of the Certified Product(s) listed above have been investigated by UL to the Standard(s) indicated on this certificate, in accordance with the UL Global Services Agreement and the EEC Terms & Conditions (“Agreement”). The
Certificate Holder is entitled to use the UL Energy Verified Mark for the Certified Product(s) listed on the certificate and manufactured at the production site(s) covered by the UL Test Report, in accordance with the terms of the Agreement. This Certificate shall remain valid unless a Standard identified on
this Certificate is amended or withdrawn prior to that date or there is a non-compliance with the Agreement.
Energy Efficiency Certification
UL
conducted an independent evaluation on behalf of:
for the following products:
Audio
-Video Equipment
Brand: Cloud
Model
(s): CV 2500, CV 4250
Thi
s product meetsall of the necessary
qualifications pursuant to:
ENERGY STAR ®:
Program Requirements
for
Audio-Video, Version 3.0
2018-09-04
4788335208
N/A
Cl
oud Electronics LTD
140 Staniforth Rd
,Sheffield, S9 3HF, United Kingdom
00-VS-F0419, Version 6.0, This is to certify that representative samples of the Certified Product(s) listed above have been investigated by UL to the Standard(s) indicated on this certificate, in accordance with the UL Global Services Agreement and the EEC Terms & Conditions (“Agreement”). The
Certificate Holder is entitled to use the UL Energy Verified Mark for the Certified Product(s) listed on the certificate and manufactured at the production site(s) covered by the UL Test Report, in accordance with the terms of the Agreement. This Certificate shall remain valid unless a Standard identified on
this Certificate is amended or withdrawn prior to that date or there is a non-compliance with the Agreement.
Energy Efficiency Certification
UL
conducted an independent evaluation on behalf of:
for the following products:
Audio/Video Equipment
Brand:
Cloud
Model
(s): CV 8125
Thi
s product meetsall of the necessary
qualifications pursuant to:
ENERGY STAR ®:
Program Requirements
for
Audio/Video, Version 3.0
2018-06-06
4788335208
N/A
Cloud Electronics Ltd
140 Staniforth Rd
,Sheffield, S9 3HF,GB

CV Series Digital Ampliers v1.0
6

CV Series Digital Ampliers v1.0 7
Contents
SAFETY INFORMATION.............................................................8
Saet tes regarig istallati............................................8
Crmities .....................................................................................8
S a  elarati ........................................................9
Saet Csieratis a rmati ...................................9
Cati  ig Vltage ............................................................9
Cati  ais se ................................................................9
Cati  Serviig ....................................................................9
Overview......................................................................................9
trti .....................................................................................9
Appliale els .........................................................................10
CV Digital ampliers  mai eatres .....................................11
Availale ptis ......................................................................11
DS tis .............................................................................11
ats i te  ..........................................................................11
Block Diagram...........................................................................12
Front Panel Description ..........................................................12
Rear Panel Description............................................................13
Installation.................................................................................14
eaial ......................................................................................1
Vetilati .......................................................................................1
er reiremets a trig te amplier
 a  ........................................................................................1
emte er D ...............................................................1
atr eset ..............................................................................1
Amplier rteti .................................................................1
er sarig .............................................................................1
Connections and Adjustments ..............................................16
pts ................................................................................................1
pt tig ..............................................................................1
Outputs ............................................................................................1
0 V100 V lie perati ......................................................1
High Pass Filters .........................................................................1
evel Ctrl ...............................................................................1
emte level trl ................................................................1
Cetig a 1 Series remte trl plate ................1
Ailiar tpts ..........................................................................1
Ethernet Control of
CV Digital Ampliers...............................................................20
S a rser mpatiilit ..................................................0
Ceig rser mpatiilit ...............................................0
Cgrig te etr .............................................................0
rser trl ..............................................................................1
Audio pages .....................................................................................22
Ai pages  Caels ...............................................................22
pt tig ta ......................................................................22
m  ta ..............................................................................23
Speaer  ta ...........................................................................24
tpt ta ...................................................................................26
imiter ta ...................................................................................26
Ai pages  Ailiar tpts ..............................................27
pt tig ta ......................................................................27
m  ta ..............................................................................27
ilter ta .......................................................................................27
Speaer  ta ...........................................................................28
tpt ta ...................................................................................28
imiter ta ...................................................................................28
Sme DS Cgrati ....................................................29
Stere gratis ...............................................................0
Stere aels..........................................................................1
Stere Ailiar tpts ........................................................32
sig Crssvers ...........................................................................32
a  Crssver ..........................................................32
a Stere Crssver   .......................................35
a Stere Crssver  S .................................................37
sig te Ailiar tpts it Crssvers ......................39
Other Menus and Submenus..................................................40
itrig .......................................................................................0
Stats ta .....................................................................................0
ear ael Ctrls ta ...........................................................0
emperatre ta ........................................................................0
vet g ..........................................................................................1
e Cg e ...........................................................................1
Sme etrig .................................................................42
C Aress ta ....................................................................42
etit ta ................................................................................42
eset a pla ..........................................................................42
Server rts ta..........................................................................42
S ta .....................................................................................42
Sme Cl  Calear ........................................................43
Date  ime ta ..........................................................................43
Seler ta ..............................................................................43
Sme eeral .........................................................................44
Sme  ..............................................................................44
Sme ggig .........................................................................44
Sme aellig .......................................................................45
Sme Dela Cgrati .................................................46
Sme Savea Cg ......................................................46
Sme Cage staller  ................................................47
Sme Devie  ..................................................................47
Additional Amplier Functions .............................................47
The GPIO Port .................................................................................47
 pts .................................................................................47
GPIO outputs ..............................................................................47
Serial Ctrl  CV Digital Ampliers ...................................48
it ............................................................................................48
Port parameters .........................................................................48
l mers ................................................................................48
Arige mma set ...............................................................49
amples ..........................................................................................49
1. pt Seleti ......................................................................49
. tpt evels ........................................................................0
sig te amplier as a terettserial rige ...........0
APPENDIX...................................................................................51
1 Series remte trl plates 
geeral sieratis .................................................................1
Ctrl  ai level via eteral DC ...................................1
Technical Specications .........................................................52
Table of factory settings ........................................................53

CV Series Digital Ampliers v1.0
8
SAFETY INFORMATION
Safety notes regarding installation
•D t epse te it t ater r mistre.
•D t epse te it t ae ames.
•D t l r restrit a air vet.
•D t perate te it i amiet temperatres ave
 C.
•D t t a part r termial arrig te
aars live sml ile per is spplie t te
it.
•D t perrm a iteral astmets less 
are alie t  s a ll ersta te aars
assiate it mais perate eipmet.
•e it as  ser servieale parts. eer a
serviig t alie servie persel.
• te mle plg is t  te AC per lea r
a reas te isare plg is a ptetial aar a
sl e ispse  i a respsile maer.
Conformities
is prt rms t te llig rpea C
Staars
BS EN55035:2017 (Immunity)
BS EN55032:2015 (Emissions)
BS EN61000-3-2:2014 (Harmonics)
is prt as ee teste r se i mmerial a
ligt istrial evirmets.  te eipmet is se i
trlle C evirmets te ra trs eav
istrial evirmets r lse t railas trasmitters
verea per lies et. te perrmae  te it ma
e egrae.
is prt rms t te llig eletrial saet
staar
BS EN 62368-1:2014
is prt is esige t e mpliat it te relevat
prvisis  Energy Star® Eligibility Criteria Ver 3.0 for
Audio-Video products.

CV Series Digital Ampliers v1.0 9
RoHS and WEEE declaration
Cl letris imite maages its siess a
llarates it its sppliers t mpl it te rpea
i restriti  te se  ertai aars sstaes
i eletrial a eletri eipmet S Diretive
00C tat ame it re  1st l 00 a
similar restritis i ter risitis.
e rsse t eelie i sml  te
prt a represete ave is tere t remi
sers  te ligati  seletive lleti 
aste. is lael is applie t varis prts t
iiate tat te prt is t t e tr aa
as srte miipal aste. At te e  lie ispse  tis
prt  retrig it t te pit  sale r t r lal
miipal lleti pit r relig  eletri a
eletri evies.
Cstmer partiipati is imprtat t miimie te
ptetial eets  te evirmet a ma ealt tat
a reslt rm aars sstaes tat ma e taie
i tis prt.
lease ispse  tis prt a its paagig i arae
it lal a atial ispsal reglatis ilig tse
gverig te rever a relig  aste eletrial
a eletri eipmet. Ctat r lal aste
amiistrati aste lleti mpa r ealer.
Safety Considerations and Information
All mels i te Cl CV Digital rage mst e earte.
sre tat te mais per sppl prvies a eetive
eart eti sig a treeire termiati.
Caution – High Voltage
D t t a part r termial arrig te aars
live sml ile per is applie t te it. ermials t
i te aars live sml reers reire istallati 
a alie pers.
Caution – Mains Fuse
e CV Digital amplier tais  serreplaeale ses.
ais verrret prteti is prvie  te se  te
rear pael l replae tis se it e  a ietial tpe
a ratig.
e se ratig is  A tpe A 0 V. e se  sie is
0 mm   mm.
Caution – Servicing
e it tais  serservieale parts. eer serviig t
alie persel. D t perrm serviig less  are
alie t  s. Diset te per ale rm te it
ere remvig te tp pael a  t mae a iteral
astmets it te it site . l reassemle te
it sig ltssres ietial t te rigial parts.
Overview
Introduction
Cl CV igital ampliers are versatile mltiael per
ampliers  avae esig ale t rive 100 V lie r 0
V lie lspeaer sstems iretl. e are ieal r s
reiremet appliatis i te retail leisre spitalit
mmerial r istrial setrs. arge istallatis sig
mltiple ampliers ill eet rm te ampliers etr
etivit ea amplier ma e gre iiviall
trlle a mitre remtel ver a staar teret
etr.
All CV Digital ampliers are apale  eliverig 1  
ai per. is maimm per ratig a e sare
etee aels i a itelliget maer allig te
ampliers t rive ieret tpes r mers  lspeaers
i te varis areas  a ilig r vee it maimm
em. e rage mprises r mels i ier l
i te mer  aels. e gre i te er lm
el represets te per tat a e elivere e all
aels are eall rive
MODEL CHANNELS POWER
CV00 2  00 
CV0 4  0 
CV10 6  10 
CV1 8  1 

CV Series Digital Ampliers v1.0
10
All mels ile ar sergrale DS
permittig great eiilit  iteral aritetre t a
imprtat aspet  te esig is tat te ampliers emlate
earlier Cl amplier esigs tte a it is t
eessar t eiter et a mpter r remve te li t
set a ampliers asi grati. teret S a
DC remte trl ptis are prvie te ampliers are
ll mpatile it staar Cl remte trl plates.
artilar esig atteti as ee pai t te ampliers
eerg eie. e Class D tpt stages ispese it lie
tpt trasrmers a seetl er great savigs i
eigt a sie ver earlier esigs. A atmati per
 AD eatre pts te amplier it a ltral
rret sta me i  ipt sigal as ee etete
r 0 mites i tis me te per smpti is
appr. . . e ampliers als ile a remte sta
ae p ti ealig tem t e plae it sta
me  a sseetl perep agai   a simple
eteral tat lsre.
Saet eatres  te esig ile tpt DC eteti
verrret prteti a termal mitrig. A sit
 ela prvies lspeaer prteti at perp. All
mels se varialespee reair lig.
Applicable Models
is stallati ie esries te istallati a
perati  te llig mels l
•Cl CV00 ael amplier 0100 V
lie tpts ttal ratig 1 
•Cl CV0 ael amplier 0100 V
lie tpts ttal ratig 1 
•Cl CV10 ael amplier 0100 V
lie tpts ttal ratig 1 
•Cl CV1 ael amplier 0100 V
lie tpts ttal ratig 1 
erever te term CV Digital amplier r simpl
amplier is se i tis maal it ma e assme tat
te irmati is appliale t all te ave mels. ere
irmati is spei t e r mre mels l lear
reeree t te relevat mel tpes ill e mae.
NOTE: Amplier mels CA00 CA0 CA10
a CA1 are  vere  tis ie.

CV Series Digital Ampliers v1.0 11
CV Digital ampliers - main features
•rasrmerless tpt stage rives 0 V100 V lie
sstems iretl
•Staar tte Cl amplier tialit
reires  mpter grati r iteral aess
r asi perati
•tesive set  DS tis r avae
grati
•alae lie level ipts
•erael tpt level trls
•erael rear pael ipt sites r ipt rtig
0 V100 V lie perati a igpass lter
•alae lie level ailiar tpts it ll ael
tialit
•Atmati er D   per smpti it
all aels ieset
•Serial remte trl via SC prt r teret
•Cmpatile it staar Cl  Series remte level
trl plates
•emte er trl ipt
•GPIO port
•Variale spee reair lig
•ermal prteti verrret limitig a DC set
prteti
•Sit ela r speaer prteti rig perp
•iversal S  perates rm 100 t 0 VAC
Available Options:
•1 remte level trl plate
• mitr ar  mer  aels er
evelpmet
•CDD Date ipt ar er evelpmet
• presets r  speaers er evelpmet
DSP functions:
•ar perael DS seti prviig etesive
rtig lterig  a limitig r all aels
ilig te ailiar tpts
•1. s ela pl reel assigale arss all aels
a a tpts
•Simple DS grati via ar e server a
evie it a mpatile e rser a a teret
eti a e se t perrm setp
•ilti DS rssver gratis all ampliers t
e easil se it a speaers
•Crssver gratis all erive  s tpt
•a parametri speaer  seti
•Separate a m  seti
•ll sept igpass lter r speaer prteti
What’s in the Box
lease e te sippig art r amage ere peig.
 tere is amage please tat r Cl aget a te
sippers.
e paig art sl tai te llig items
•Cl CV Digital amplier
•Set  matig plgi sretermial etrs
•Quick Start Guide
•ais ales

CV Series Digital Ampliers v1.0
12
Block Diagram
Front Panel Description
37 74 5 6
1 2
1. POWER  press t tr te amplier  a
sseet press ill tr te amplier .
. POWER LED gree  illmiates e te amplier is
pere eiter i its ative state r i Atmati er
D AD me.
a amplier ael as r Ds  te rt pael
i ti as lls
. POWERED gree  illmiates e te ael is
ative i.e. it as ee e p e te ipt sigal
level eees   tpial tresl ma var it
prgramme tpe.
. SIGNAL gree  illmiates e te tpt sigal
level rm te amplier ael is at least 0  el
te rate tpt level.
. PEAK ell  it te aels limiter eale
te atr ealt settig te D illmiates e
te limiter is ative i.e. reig gai. it te limiter
isale te D illmiates e te amplier is
lippig tis ill rmall iiate tat te sigal level
is t ig. te tat te limiter settigs are aesse
via te rser trl pages.
. PROTECT re  iiates a alt iti. t
illmiates e te per amplier stage is st
  te iteral prteti iritr i
ill r i eessive rret r DC is etete at
te tpt termials r i te iteral temperatre
emes t ig. verrret r DC alt itis
a e leare  remvig te AC per sppl r a
e ses t e te ase is vertemperatre
te amplier ill remai i its prtete state til te
temperatre rps i ill geerall r i te
ipt sigal is ree.
. Vetilati itaes  tese sl alas e
strte e te amplier is i se.

CV Series Digital Ampliers v1.0 13
Rear Panel Description
17
5 14 15 4 7 26
16
17
39 101113 12 1 8
1. INPUTS CH 1 ... CH n  e pi . mmpit sre
termial etr per amplier ael. e ipts are
alae. Cet te amplier sres ere.
. INPUT ROUTING  a   r a D sit
epeig  mel. e atr ealt settig is it
all sites p i tis state ea amplier ael
ill e e  te samemere ipt etr.
See page 1 r ll esripti  ti. te
tat S1 is iative  all mels S a S are
iative  el CV10.
. LEVEL  e reesse presettpe trl per ael
asts te tpt level  te ael.
. AUX 1 a AUX 2  t pi . mmpit sre
termial etrs. a e se t rive aitial
ampliers r rerig r ter prpses. e tpts
are alae a erive pst te relevat LEVEL
trl. e atr ealt sres r te AUX 1 a
AUX 2 are te sigals rte t te ipts  amplier
Caels 1 a  respetivel ts AUX 2s sre
ill e aete  te settig  INPUT ROUTING DIP
sit S. e e rser pages all ll trl
ver te sre level  a ter parameters  te
ailiar tpts.
. 70V / 100V LINE OUTPUTS  e pi  mmpit
sretermial etr per amplier ael.
Cet te ees t te lspeaer sstems ere.
. 65 Hz HIGH PASS FILTER  a   r a D sit
epeig  mel. e atr ealt settig is it
all sites  a lters ative. e atr ealt
lter ree is   reeies el tis ill e
remve. e ree ma e aste t a ieret
vale via te e rser pages.
. 70V / 100V  a   r a D sit epeig 
mel. CV Digital ampliers ma e se it eiter 0
V lie sstems r 100 V lie sstems. e atr ealt
settig is eiter it all sites p 0 V lie r all
sites  100 V lie epeig  regi.
. REMOTE LEVEL  e pi  mmpit sretermial
etr per amplier ael. Cl 1 Series
remte trl plates ma e ete ere t permit
te tpt level  ea ael t e trlle rm a
remte lati. A eteral DC vltage sre 0 t
10 V ma als e applie rm a eteral trl
sstem.
. ETHERNET  a staar  teret prt. Cet
t a mpter talet i pit r A t aess te
ampliers e rser pages.
10. FIX IP  a reesse pstt i it is el presse
ile te amplier is pere  te ampliers 
aress is e at 1.1.0.. is is itee t
all a egieer eas aess t te e rser pages
itt te se  te Cl etr Disver l.
11. RS232  a iiretial SC serial iterae  a
pi . mmpit sretermial etr. st
amplier tis ma e trlle via tis prt.
1. GPIO  a a  prt  a pi  mmpit
sretermial etr. e prts are gre via
te e rser pages a ea ma e gre r
master mtig alt reprtig r ter ser tis.
1. REMOTE PWR DOWN  a pi  mmpit sre
termial etr allig remte trl  te
ampliers Atmati er D AD ti. A
tat lsre at tis etr ill re AD plaig
te amplier i Sta e it ver l per
smpti.
1. pasi a  r retrttig te ptial CDD
Date ipt ar.
1. AC ipt  staar C reeptale. se te AC per
ale spplie it te amplier.
1. FUSE  A 0 mm mais se. l replae te se
it e  a ietial tpe.
1. Vetilati easts  tese sl alas e
strte e te amplier is i se.

CV Series Digital Ampliers v1.0
14
Installation
Mechanical
e ampliers are esige t e mte i a staar 1
eipmet ra. e rt pael is tte it ramt ears
r tis prpse. All mels reire   vertial ra spae.
See tes el regarig spaig a vetilati.
De t te its eigt te se  ra sie rails is
remmee.
Ventilation
CV Digital ampliers are re le  a iteral
termstatialltrlle a temperatre is sese iti
te ampliers per tpt mles. e a is iperative
at temperatres el C. Ave tis temperatre its
spee is etermie  te ttest amplier mle a
ireases prprtiatel t a maimm spee e te
igest mle temperatre reaes  C.
Alas all aeate spae ar te amplier t all a
ree   air trg te it. sre tat ale les r
ter items  t strt a vets.
e air itae is at te rt pael ltere it eits i
te rear a leta sie paels. t is remmee t t
mi CV Digital ampliers it ter eipmet emplig
reair lig i ats i te ppsite ireti iti
te same ra.
Power requirements and turning the amplier
on and off
Cet te CV Digital amplier t AC mais sig te
spplie C ale. e amplier ill perate  sppl
vltages rm  t  V 0 r 0 .
e per tt is a st tpe press e t tr
te ampliier . All rt pael Ds ill illmiate r a
e ses ile iteral iagstis are te. e
gree D aaet t te per tt ill remai 
ater tis seee.
e amplier is igl eerg eiet a as a Atmati
er D AD eatre i pts iivial aels
it Sta e ater 0 mites i  ipt sigal
t te ael as ee etete.   ipt sigals are
preset e te amplier is tre  all aels ill g
immeiatel it Sta e. e per smpti i
Sta e is apprimatel . .
ress te per tt agai t tr te amplier .
 te mais sppl is iterrpte ile te amplier is 
te amplier ill eete te tiagsti seee
atmatiall e per is restre.
Remote Power Down
e amplier ma e re it Sta e applig
a srtirit t te rear pael REMOTE PWR DOWN
etr. e etr is a pi  mmpit sre
termial tpe. e amplier ill ae p e te srt
irit is remve aep time is tpiall 00 ms. is
ti a e sel i sttig  e.g. visitr attratis
at msems a teme pars.
Factory Reset
A lg press  te per tt e te amplier
is  ill eet a atr eset. is ill ael a ser
gratis tat ave ee lae ilig DS
assigmets ealemet  rear pael sites ael a
DS l ames et. l te per tt  til te
aaet er D ases appr.  ses t perrm
te atr eset  releasig it te amplier ill arr t
it its rmal t seee.
See ale  atr settigs  page  for a list of the
primar atr settigs.
CV DIGITAL AMPLIFIERS: SIMPLE AND ADVANCED OPERATION
CV Digital Series ampliers are esige t r tte a r ma istallatis te asi atr
grati ill prvie satisatr a aeate perati.  s istallatis a teret eti ee t
e prvie.
 ter istallatis te istaller ma is t aess te ampliers DS seti t tae avatage  te ma
aitial grati ptis it prvies ilig spistiate  etra rtig pssiilities a limitig. e
se ma als is t mae te ampliers e trl pages availale t te ser. r tis reas grati
a trl via te teret eti is vere i a separate seti  tis ie see teret Ctrl 
CV Digital Ampliers  page 0. stallers t reirig te aitial tialit a igre tis seti.

CV Series Digital Ampliers v1.0 15
Amplier Protection
CV Digital ampliers tpt stages irprate
mpreesive prteti iritr t prevet amage t
lspeaers te tpt evies a ter mpets i
te evet  a alt iti.
e vltage a rret at te tpt termials  ea
ael is statl mitre a te ael ill eter
rteti e a st  i eiter DC r eessive
rret is etete.  tis ase te relevat rt pael
PROTECT D ill illmiate. erlig te amplier
 remvig te C per etr a replaig it ater
 ses ill rmall lear te alt iti t i
the PROTECT D remais lit ater te t seee te
amplier ma ave evelpe a alt a sl e servie.
e iteral temperatre  te per mles is als
statl mitre a i a temperatre  C is reae
te ael ill eter rteti e. ter amplier
aels ill e aete. A termallie prteti
state is rmall a iiati tat te amplier ael is
eig rive t ar a reig te ipt sigal level ill
geerall lear te alt.
e prteti iritr is als ativate immeiatel te
amplier is pere . is is t prevet a vltage spies
e t startp itis rm amagig te lspeaers.
e prteti iritr atmatiall times t ater a srt
ela. All PROTECT Ds illmiate at sit rig te
t seee tis is rmal.
Power sharing
A ametal esig ept  CV Digital ampliers is tat
 er Sarig. e maimm per tpt apailit 
all mels  CV Digital amplier is 1 .  se te amplier
t its maimm eetiveess istallers sl ave a
erstaig   tis maimm per gre is sare
etee aels.
All mels se t separate iteral per spplies ea
rate at 00 . e t spplies serve te  a eve
mere aels respetivel. a amplier ael
is apale  eliverig 00  t tis gre a l e
realised if the other channels in its group (of odd or even-
numbered channels) are unused. As ter aels i te
same grp are alle p t eliver per te maimm
per availale rm a e ael is ree.  all
aels are simltaesl rive it eal ipt levels
a te LEVEL trls are aste t te same settig te
maimm mltiael per ratig  te ampliers a
e state as lls
•CV00  aels 00 
•CV0  aels 0 
•CV10  aels 10 
•CV1  aels 1 
e great avatage  te per sarig priiple is tat it
alls istallers t se sme aels t rive speaers i
areas ere l l per is eee a ters r areas
ere mre is eee.
t sl e apparet tat te  ael CV00 is largel
iepeet  te per sarig priiple avig l e
 a e eve ael.

CV Series Digital Ampliers v1.0
16
Connections and Adjustments
Inputs
a amplier ael as a eletriallalae
ipt  a pi . mmpit sre termial etr
1. ire sreee ale sl e se e rivig
te amplier ipts rm a evie it a alae tpt.
Siglere sreee ale a e se e etig t
a alae sre.
13 2
INPUT: BALANCED
CONNECTION
scn scn cold (-)
hot (+)
13 2
INPUT: UNBALANCED
CONNECTION
- +
OUTPUTS
to additional
loudspeakers
+ - + - + -
hot (+)
Input Routing
 mm it ter Cl per ampliers ea amplier
ael a eiter e e it a sigal rm its  ipt
te atr ealt settig r it te sigal eeig
ater ael. is alls te same ipt sigal t ee
several aels itt te ee r ipt etrs t e
ire i parallel. CV Digital mels it eer aels are
visl restrite i te rage  rtig ptis availale
i mparis it mels it mre aels.
e rear pael INPUT ROUTING D sites 2are used to
selet ipt sre r ea ael eept Cael 1. e
atr ealt settig is it all sites  i ets
te ipt t ea amplier ael t te samemere
ipt etr as iiate  te pper r  mers.
Settig a sit D parallels te ipt  tat amplier
ael it te ipt  te amplier ael iiate
el te sit.
Notes:
•Sit 1 is iperative  all mels
•Sites  a  are iperative  mel CV10
1 82 3 4 5 6 7
CH INPUT ROUTING
I/P 1 21 1 1 22
CV8125
123456
CH INPUT ROUTING
I/P 1 21 1 2
CV6160
1 2 3 4
CH
INPUT ROUTING
I/P 1 21
CV4250
1 2
CH
INPUT ROUTING
I/P 1
CV2500
Amplifier channel is
fed from same-
numbered input
Amplifier channel is fed
with signal selected to
channel indicated below

CV Series Digital Ampliers v1.0 17
e ipt rtig sites perate i te maer s i
te sematis el.
1 2
CH
I/P 1
CH1
CH2
INPUT 1
INPUT 2
CV2500
CH1
CH2
INPUT 1
INPUT 2
1234
CH
1 21
CH3
CH4
INPUT 3
INPUT 4
CV4250
I/P
SW2
SW2
SW3
SW4
1 2
CH
I/P 1
CH1
CH2
INPUT 1
INPUT 2
CV2500
CH1
CH2
INPUT 1
INPUT 2
1234
CH
1 21
CH3
CH4
INPUT 3
INPUT 4
CV4250
I/P
SW2
SW2
SW3
SW4
CH1
CH2
INPUT 1
INPUT 2
CH3
CH4
INPUT 3
INPUT 4
CV6160
CH5
CH6
1 2 3 4 5 6
CH
I/P 1 21 1 2
INPUT 5
INPUT 6
SW2
SW3
SW4
SW5
SW6
CH1
CH2
INPUT 1
INPUT 2
CH3
CH4
INPUT 3
INPUT 4
CV8125
CH5
CH6
1 2 3 4 5 6
CH
I/P 1 21 1 2
INPUT 5
INPUT 6
SW2
SW3
SW4
SW5
SW6
CH7
CH8
7 8
1 2
INPUT 7
SW7
INPUT 8
SW8
CH1
CH2
INPUT 1
INPUT 2
CH3
CH4
INPUT 3
INPUT 4
CV6160
CH5
CH6
1 2 3 4 5 6
CH
I/P 1 21 1 2
INPUT 5
INPUT 6
SW2
SW3
SW4
SW5
SW6
CH1
CH2
INPUT 1
INPUT 2
CH3
CH4
INPUT 3
INPUT 4
CV8125
CH5
CH6
1 2 3 4 5 6
CH
I/P 1 21 1 2
INPUT 5
INPUT 6
SW2
SW3
SW4
SW5
SW6
CH7
CH8
7 8
1 2
INPUT 7
SW7
INPUT 8
SW8
r all CV Digital mels te rtig ptis ma e
smmarise as lls
•all amplier aels ma e sre  te same
mere ipt
•Cael  ma e sre rm eiter pt 1 r pt 
•mere aels rm Cael  pars ma
alterativel e sre rm pt 1
•evemere aels rm Cael  pars
ma alterativel e sre it iever ipt is
selete r Cael 

CV Series Digital Ampliers v1.0
18
Outputs
e speaer tpt etr r ea amplier ael
is a pi  mmpit sretermial tpe 5. e plgi
etrs are sitale r ale res p t . mm2.
Cet as s el
-TO 70/100 V LINE
SPEAKER SYSTEM
+
ever mae etis t te tpt termials
ile te amplier is pere.
e trasrmerless tpt stage  ea amplier ael
is esige t eliver 100 Vrms it a impeae  at least
0 ms r 0 Vrms it a impeae  at least . ms.
Ce te per ratig  te lspeaer tpe i se a
mltipl tis gre  te mer  lspeaers te ttal
ete t t te mere ael grp a te
evemere ael grp mst e less ta 00 .
Assmes all lspeaers i te sstem are  te same tpe a ave te
same tap settig.
70 V/100 V line operation
CV Digital ampliers a rive eiter 100 V lie r 0 V lie
lspeaer istriti sstems. e vltage  te sstem
is set  te rear pael 70V / 100V D sit 7. e D
sit sie varies it mel te tat  te CV10
sites  a  are iperative. e eample s el
is r te ael CV0 te priiple is ietial arss
te rage.
1 2 3 4
CH
LINE VOLTAGE
(CV4250)
100 V line
operation 70 V line operation
1234
CH
65Hz
HIGH PASS FILTER
(CV4250)
Filter off Filter on
70V
100V
e vltage ma e set iepeetl r ea ael. Set
te sit  r 0 V lie perati a D r 100 V
lie perati.
te tat te D sit ma e isale  a perael
asis sig te e rser pages.
High Pass Filters
st trasrmers tte t 0 V100 V lie speaers eiit
re satrati e e it iglevel sigals at l
reeies. rasrmer satrati reates pleasat
istrti a stresses te sstem.  terat tis a
rretl gre ig pass lter is a essetial part  a
lie istriti sstem. CV Digital ampliers ave a ig pass
lter i ea ael seletale via te HIGH PASS FILTER
D sit  te rear pael 6. e D sit sie varies
it mel te tat  te CV10 sites  a  are
iperative. e eample s el is r te ael
CV0 te priiple is ietial arss te rage.
1 2 3 4
CH
LINE VOLTAGE
(CV4250)
100 V line
operation 70 V line operation
1234
CH
65Hz
HIGH PASS FILTER
(CV4250)
Filter off Filter on
70V
100V
e atr ealt lter ree is   i sl
e satisatr r ma istallatis ever te ree
a e aste ver te ll ai ait rm te e
rser pages. te als tat te D sit ma e isale
 a perael asis rm te e rser pages.
Level Control
Ctrl  ai level i ea ael is prvie  te
rear pael preset rtar LEVEL trl 3. t sl e
appreiate tat tis asts te sigal level eeig te
amplier per stage a is ts essetiall a tpt level
trl t a ipt level r sesitivit trl. e preset
sl e aste sig a trim tl r small sreriver.
er tpt is taie it te trl ll atilise.
ll tpt level is it te trl ll lise at tis
settig te maimm tpt vltage 0 Vrms r 100 Vrms ill
e pre r a ipt sigal level  0. Vrms 0 .
e remme tat te level r ea ael sl e
set ater istallati is mplete  mmeig it te
LEVEL trls at miimm. stallers sl esre tat
aeate t t eessive s levels are aieve it
te prgramme material tat ill e se i pratie.
te tat te e rser pages r ea ael ile a
eale sit r te rear pael LEVEL trl a REMOTE
LEVEL prt te atr ealt settig r tis sit eales
t tis.

CV Series Digital Ampliers v1.0 19
Remote level control
ie ma ter Cl prts CV Digital ampliers all
remte trl  ai level i ea ael. Cl remte
trl plates rm te 1 Series prvie a elegat
slti tg trl via a DC vltage rm tirpart
sstems is als pssile see Ctrl  ai level via
eteral DC  page 1.
1 plates et via te REMOTE LEVEL port for the
relevat ael 8. a ael ses a pi  mm
pit sre termial tpe etr. e ete a
1 plate ill ast te ael level etee er ll
atilise ael mte t te maimm level ll
lise etermie  te settig  te rear pael LEVEL
trl.
te tat te e rser pages r ea ael ile a
eale sit r te rear pael LEVEL trl a REMOTE
LEVEL prt te atr ealt settig r tis sit eales
t tis.
Please refer to 1 Series remte trl plates  geeral
sieratis  page 1 r aitial irmati.
Connecting an RL-1 Series remote control plate
ire te remte trl plate as s el sig ti
asree ale. aimm reliale ale r is 100 m.
123
RL-1 REMOTE LEVEL CONTROL WIRING
123
REMOTE LEVEL
CONNECTOR
USE TWO-CORE SCREENED CABLE
Auxiliary Outputs
e amplier is prvie it t Ailiar tpts
AUX 1 a AUX 2 4. ese ma e se t rive aitial
ampliers r rerig r a ter prpse ere sstem
epasi is reire. e etrs are pi . mm
pit sre termial tpe.
e sigals at te ailiar tpts are alae a lie
level a a ts e se t rive mst eteral eipmet
iretl. e etr pit is ietial t tat se r te
amplier ipts
13 2
OUTPUT: BALANCED
CONNECTION
scn
cold (-)
hot (+)
13 2
OUTPUT: UNBALANCED
CONNECTION
hot (+)
scn
(DON’T CONNECT PIN 2)
tte te atr ealt sres r tpts
AUX 1 a AUX 2 are te sigals rte t Caels 1 a
 respetivel. t a e see rm te l Diagram page
1 tat i pratie tis meas tat AUX 1 ill alas
arr te sigal applie t INPUT 1 a AUX 2 ill alas
arr te sigal selete  INPUT ROUTING D sit 
 eiter tat applie t INPUT 1 or that applied to INPUT 2.
te als tat  ealt te sres r te Ailiar
tpts are eetivel erive pst te rear pael ael
LEVEL trls. erere te tpt level at AUX 1 a
AUX 2 ill e aete  te LEVEL trls r Caels 1
a  respetivel a als  a 1 remte trl plate
ete t te REMOTE LEVEL prts r tse aels.
t sl e te tat iterall te Ailiar tpts
ave etesive DS ailities e.g. ipt rtig etesive
 limitig almst ietial t tse i te mai amplier
aels t  rse itt a per tpt stage.
e e rser pages all te Ailiar tpts t e
gre it te same egree  eiilit as te mai
aels. See Ai pages  Ailiar tpts  page
27 r ll etails.

CV Series Digital Ampliers v1.0
20
Ethernet Control of
CV Digital Ampliers
CV Digital ampliers ave a server ti i maes
trl pages availale i a rser rig  a evie 
te same etr as te amplier. is alls te istaller
t aess te ampliers DS tis maig a greatl
etee rage  eatres a trl ptis availale. t
als permits eas grati a realtime trl  te
amplier rm a veiet evie  te etr.
OS and Browser compatibility
e CV Digital amplier ses staar C a Dase
etrig prtls a is terere ral mpatile
it mer estp a mile peratig sstems.
Checking browser compatibility
e e rserase ser iterae reires  CSS
lalStrage a eSets spprt i are prvie as
staar i rret e rsers.
 tere is a t regarig rser mpatiilit Cl
remmes te se  te esite tmltest.m to check
i eatres r rser spprts.
Conguring the network
NOTE: is seti  te maal is itee r tse
it a rig erstaig  asi mpter etr
grati a te termilg ivlve.
teret eti t te CV Digital amplier a e
simplie  te se  te Cl teret Disver l.
is a e lae rm .l.. avigate t
Resources a selet Downloads i te resre seletr.
e Disver l is availale i t istit versis
•a eetale A le i ill r  i is
r a sstems iti a ava time virmet
availale rm .ava.m
•a isspei appliati i es t reire
ava.
Dla te mst apprpriate versi r r peratig
sstem a save it i a veiet lati.
ere are tree mets  estalisig etr
mmiati
1. Drig iitial setp te amplier ma e ete
iretl t a laptp teret iterae sig eiter a
straigt r rssver teret ale.  tis seari
t te laptp a amplier ill gre temselves
sig ilal  aresses a ill e ale t
mmiate itt te reiremet r DC r
rter etr irastrtre. sig tis temprar
eti te amplier a e set p a gre
t se eiter DC te ealt r a spei stati 
aress sitale r te target etr.  a stati 
aress is t e se Set as a atea mst
als e set rretl.  atea etails are 
te vale 0.0.0.0 a e se sael.
. Alterativel te amplier ma e ete t a
spare prt  a teret sit  a eistig etr
a set p rm a evie  te same etr. 
tis seari DC is te epete met r 
aress allati rig te iitial setp prere. 
te etr es t spprt DC te te iret
eti met esrie ave sl e se t
assig te rret stati  aress rst.
. ress te rear pael FIX IP tt 10 ile perig
te amplier  it te POWER tt 1. is res
te amplier t apt te temprar stati aress
1.1.0. a a iret teret eti t a
laptp r talet ma e se. e amplier a te e
late  a rser  eterig tis  aress i te
 el prvie te evie i se is gre it
a stati  aress i te 1.1.0. rage ere
 is i te rage 1 t . e  aress ill revert
t tat previslsave at te et per
perp le less te etr settigs ave ee
elieratel altere.
r mets 1 a  r te Disver l tis ill pe
te i s el i sl tai a etr
it te amplier mel i te Name lm.
NOTE:  a arig message appears reereig is
ireall it a e sael igre  lsig te message
.
Dleli  te CV Digital amplier etr. is sl
pe r ealt rser a mae te lgi page visile.