Laney Nexus FET User manual

NXF
OPERATING INSTRUCTIONS - 1
FET
A N Y AMPL A T
LE I FICI O N
w. l a e y. c kw w n o. u
65 W ET BAS GU TAR M LI IE0 F S I A PFR

SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using electric products, basic cautions should always be followed, including the following.
1. Read all safety and operating instructions before using this product
2. The product should be powered by a three pin `grounded (or earthed) plug connected to a power socket with a grounded earth outlet.
3. All safety and operating instructions should be retained for future reference
4. Obey all cautions in the Operating instructions and on the back of the unit
5. All operating instructions should be followed
6. This product should not be used near water, i.e. a bathtub, sink, swimming pool, wet basement, etc.
7. This product should be located so that its position does not interfere with its proper ventilation. It should not be placed flat against a wall or placed in a built up enclosure that
will impede the flow of cooling air.
8. This product should not be placed near a source of heat such as stove, radiator, or another heat producing amplifier.
9. Connect only to a power supply of the type marker on the unit adjacent to the power supply cord.
10. Never break off the ground pin on a power supply cord.
11. Power supply cords should always be handled carefully. Never walk or place equipment on power supply cords. Periodically check cords for cuts or signs of stress, especially at
the plug and the point where the chord exits the unit.
12. The power supply cord should be unplugged when the unit is to be unused for long periods of time.
13. If this product is to be mounted in an equipment rack, rear support should be provided.
14. The user should allow easy access to any mains plug, mains coupler and mains switch used in conjunction with this unit thus making it readily operable.
15. Metal parts can be cleaned with a damp cloth. The vinyl covering used on some units can be cleaned with a damp cloth or ammonia based household cleaner if necessary.
Disconnect the unit from the power supply before cleaning.
16. Care should be taken so that objects do not fall and liquids are not spilled into the unit through any ventilation holes or openings. On no account place drinks on the unit.
17. A qualified service technician should check the unit if:
18. The user should not attempt to service the equipment. All service work is done by a qualified service technician.
19. Exposure to extremely high noise levels may cause a permanent hearing gloss. Individuals vary considerably in susceptibility to noise induced hearing loss, but nearly everyone
will lose some hearing if exposed to sufficiently intense noise for a sufficient time. The U.S. Government's Occupational Safety and Health Administration (OSHA) has specified
the following permissible noise level exposure.
Duration Per Day In Hours Sound Level dBA, slow response
8 90
6 92
4 95
3 97
2 100
1 ½ 102
1 105
½ 110
¼ or less 115
According to OSHA, any exposure in excess of the above permissible limits could result in some hearing loss. Ear plugs or protectors in the ear canals or over the ears must be
worn when operating this amplification system in order to prevent a permanent hearing loss if exposure exceeds the limits set forth above. To ensure against potentially dangerous
exposure to high sound pressure levels it is recommended that all persons exposed to equipment capable of producing high sound pressure levels such as this amplification system be
protected by hearing protectors while this unit is in operation.
!The power cord has been damaged
!Anything has fallen or spilled into the unit
!The unit does not appear to operate correctly
!The unit has been dropped or the enclosure damaged.
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BEFORE SWITCHING ON
After unpacking your amplifier check that it is factory fitted with a three pin
'grounded' (or earthed) plug. Before plugging into the power supply ensure you
are connecting to a grounded earth outlet.
If you should wish to change the factory fitted plug yourself, ensure that the wiring
convention applicable to the country where the amplifier is to be used is strictly
conformed to. As an example in the United Kingdom the cable colour code for
connections are as follows.
NOTE
This manual has been written for easy access of information. The front and rear
panels are graphically illustrated, with each control and feature numbered. For a
description of the function of each control feature, simply check the number with
the explanations adjacent to each panel.
Your Laney amplifier has undergone a thorough two stage, pre-delivery inspection,
involving actual play testing.
When you first receive your Laney guitar amplifier, follow these simple procedures:
(i) Ensure that the amplifier is the correct voltage for the country it is to be used in.
ii) Connect your instrument with a high quality shielded instrument cable. You
have probably spent considerable money on your amplifier and guitar - don’t use
poor quality cable it won’t do your gear justice.
Please retain your original carton and packaging so in the unlikely event that some
time in the future your amplifier should require servicing you will be able to return it
to your dealer securely packed.
Care of your Laney amplifier will prolong it's life.....and yours!
EARTH or GROUND GREEN/YELLOW
NEUTRAL - BLUE
LIVE - BROWN
CAUTION:
WARNING:
Intended to alert the user to the presence of uninsulated ‘Dangerous Voltage’
within the products enclosure that may be sufficient to constitute a risk of
electrical shock to persons.
Ce symbole est utililise pur indiquer a l’utilisateur de ce produit de tension non-
isolee dangereuse pouvant etre d’intensite suffisante pour constituer un risque
de choc electrique.
Este simbolo tiene el proposito de alertar al usuario de la presencia de ‘(voltaje)
peligroso’ que no tiene aislamiento dentro de la caja del producto que puede
tener una magnitud suficiente como para constituir riesgo de corrientazo.
Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen
innerhalb des Gehauses warnen, die von Ausrichender Starke sind, um einen
elektrischen Schlag verursachen zu konnen.
Intended to alert the user of the presence of important operating and
maintenance (Servicing) instructions in the literature accompanying the product.
Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen
innerhalb des Gehauses warnen, die von Ausrichender Starke sind, um einen
elektrischen Schlag verursachen zu konnen.
Este simbolo tiene el proposito de la alertar al usario de la presencis de
instrucccones importantes sobre la operacion y mantenimiento en la literatura
que viene conel producto.
Dieses Symbol soll den Benutzer auf wichtige Instruktionen in der
Bedienungsanleitung aufmerksam machen, die Handhabung und Wartung des
Produkts betreffen.
Risk of electrical shock - DO NOT OPEN.
To reduce the risk of electrical shock, do not remove the cover. No user
serviceable parts inside. Refer servicing to qualified personnel.
Risques de choc electrique - NE PAS OUVIRIR
Afin de reduire le risque de choc electrique, ne pas enlever le couvercle. II ne
se trouve a l’interieur aucune piece pouvant etre reparee par l’utilisateur.
Confier l’entretien a un personnel qualifie.
Riesgo de corrientazo - no abra
Para disminuir el risego de carrientazo, no abra la cubierta. No hay piezas
adentro que el pueda reparar. Deje todo mantenimiento a los tecnicos
calificadod.
Risiko - Elektrischer Schlag! Nicht offen!
Um das Risiko eines elektrischen Schlages zu vermeiden, nicht die Abdeckung
enfernen. Es befinden sich keine Teile darin, die vom Anwender repariert
werden Konnten. Reparaturen nur von qualifiziertem Fachpersonal durchfuhren
lassen.
To prevent electrical shock or fire hazard, do not expose this appliance to rain
or moisture. Before using this appliance please read the operating instructions
for further warnings.
Afin de prevenir les risques de decharge electrique ou de feu, n’exposez pas
cet appareil a la pluie ou a l’humidite. Avant d’utiliser cet appareil, lisez les
advertissments supplentaires situes dans le guide.
Para evitar corrientazos o peligro de incendio, no deja expuesto a la lluvia o
humedad este aparato Antes de usar este aparato, lea mas advertcias en la
guia de operacion.
Um einen elektrischen Schalg oder Feuergefahr zu vermeiden, sollte dieses
Gerat nicht dem Regen oder Feuchtigkeit ausgesetzt werden. Vor
Inbetriebnahme unbedingt die Bedienungsanleitung lesen.
PRECAUCION:
ADVERTENCIA:
ATTENTION:
ADVERTISSEMENT:
VORSICHT:
ACHTUNG:
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The Nexus FET amplifier is the culmination of our 40 years of experience in the bass amplification business. It is built to the
highest professional standards using the best available parts.
Through out the design we have considered the requirements of the professional player who not only requires great sounds but
also the utmost reliability. To this end we have used the best and most proven FETs available, gold plated circuit boards, gold
relays for all signal switching, a massive oversized toroidal transformer plus an overall feature set and sound second to none.
The amplifiers are assembled in our UK factory by our very experienced staff with great attention to detail and inspection. It is
then electrically bench tested. Following this, it is put through extensive burn in procedures over many hours. Afterwards it goes
back to the test bench for a further extensive re-check and final calibration.Only when it has successfully passed these stages is
it then put into its cabinet.
Then comes the most important part of all; actual play testing. One of our experienced bass guitarists spends time putting the
amplifier though its paces, checking all the sounds and functions are perfect. Only then does it get the seal of approval to be
carefully packed and shipped.
We hope you enjoy using your Nexus amplifier as much as we have enjoyed designing and building it.
Best wishes from all at Laney.
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Dear Player,
Thank you very much for purchasing your new Laney product and becoming part of the worldwide Laney family. Each and every
Laney unit is designed and built with the utmost attention to care and detail, so I trust yours will give you many years of
enjoyment.
Laney products have a heritage which stretches back to 1967 when I first began building valve amplifiers in my parent’s garage.
Since then we have moved on from strength to strength developing an extensive range of guitar, bass, public address and
keyboard amplification products along with a list of Laney endorsees that includes some of the world’s most famous and
respected musicians. At the same time we believe we have not lost sight of the reason Laney was founded in the first place - a
dedication to building great sounding amplification for working musicians.
Warm Regards,
Lyndon Laney CEO
Laney
OPERATING INSTRUCTIONS
Introduction
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Laney
OPERATING INSTRUCTIONS
NXF USER TIPS & QUICK START
Connecting up your rig:-
Check your amplifier is the correct working voltage for the area you are in. Ensure you use the earthed power cord supplied with
your amplifier to connect to the power supply.Make sure the supply socket you are using is an earthed/grounded type. Ensure
you connect your speakers to the appropriate impedance socket with good quality speaker cable and connectors before
switching on your amplifier. If not using Nexus speakers ensure they are of sufficient power handling capacity and correct
impedance.
Quick start:-
Make sure the volume control is at minimum. The gain controls are at minimum, The EQ and graphic slider controls are at the
centre zero position and none of the push switches are illuminated.
Turn your amplifier on with the power switch making sure that the standby switch is in the standby position first.
After 20 seconds or so turn on the standby switch to the Run position.
Plug in your guitar using a good quality screened lead.
Press the FET channel select button.
Play your bass guitar and adjust the FET Gain control until your playing lights the amber led in the bar graph display and only
very occasionally on loud peaks the Red. If you find that the gain control has to be set quite low to achieve this, try pressing in
the pad switch to lower the input sensitivity. Now advance the Volume control to the desired listening level.
Apply tone correction as desired but try to use small amounts of boost and cut to your sound. Over correction will nearly always
sound bad. Don't forget most of the controls have cut and boost don't boost them all, cut sounds good too especially in the mid
range. Try to always use the minimum tone correction to get your desired sound. As you adjust your tone you may need to
readjust the gain control to maintain the correct level on the bar graph display
Ventilation:
Ensure the amplifier is well ventilated and that the top and bottom vents are not obstructed in any way.
Avoid dropping anything in through the vents especially liquids of any kind. If this should happen turn off the product and disconnect
from the power supply immediately and leave to dry out for at least 24hrs.
Rack Mounting:
The chassis may be removed from its wooden cabinet and fitted into a standard 19” rack unit. However the chassis must be mounted
on a metal supporting shelf to provide sufficient support and to cover the exposed areas on the underside of the chassis. Ventilation
must also be considered and adequate provisions made. We do however recommend retaining the amplifier in its wooden case and
transporting in a suitable foam lined flight case when ever possible.
Speaker Cabinets:
The Laney Nexus range of cabinets has been specially designed for use with this amplifier. Their power ratings and impedances have
been carefully matched for optimum performance. Use of other cabinets may result in an inferior sound. (See connection diagrams for
wiring up).
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QUICK START SETTINGS - Suggestions only, experiment
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OPERATING INSTRUCTIONS
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OPERATING INSTRUCTIONS
NEXUS NXF FRONT & REAR PANEL CONTROLS
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Laney
OPERATING INSTRUCTIONS
NEXUS NXF FRONT / REAR PANEL FEATURES
Inp e e met r Thi b n i l y sh w e l ve of si nl g i g th u hth pr a l f e Th da e el s when he a ber i h i
ut l v l e : s 4 a d d sp a os th e l g ao n ro g ee mp i ir. eie l l v i t m l gts
i l mi a d fo mst f our l yi g Ad u the a n o ueLvel co tro s (d p ning o w ic hannel u re u ing) to set th
lu n te r o o y pa n . j st FET g i r Tb e nl e ed n h h c yo a s e
d spla or ctly. Th s a e d a j sting i a y EQ otol re a g d
i y c re i m y n e d u fncnrsa ch ne. (R gul r he k yo v l a d a jus a r qu e ).
e a ly cc ur le e s n dt se ir d
Bass C toTh s co t ol o sts cl ckwise) r cu ni lo kw se h o ra l lw r q e cy so n s f om y u a u t r. e contro
on rl: i n r b o ( oots (a tcc i ) t e ve l o f e u n u d r o r b ss g i a Th l
hs a ro n r e n p si i n hre th so n s u ch n e. e se ti g u initi ll t rt n th ce t e p si ion n d sm ll mo n
a ze ce t ed te t o t o w e eudi n a gdWh ntn p a ysa i en r o t a da d a a uts
obo t r cu t o t i yo r desi d s ud
f o s o to b an u re o n.
Tee ontr l: icnrol b o s ( o i e) o ts (a tcl ck i ) t eve l hi h requency so n s f om y ubas u t r.It a
rbl C o Th s o to st cl ckw s rcu ni o w se h o ra l g f u dr o r s g i a h s a
zro c n re eent positi n where th ound s unch n e . e e ting u in tia l art nth ent p si in and d sma lamo n s o
e et d t o e s i a g d Wh n s t p i ly st i e c re ot o a dl u t f
botr u t o ti yo r desi d s u d
os o c t o ba n u re o n .
Prmtr c i col : e co tro s o si o tw a rs; t e eft a d one n l in t eo i q eci s a d th ig t a dh aaeiM d ontr s Th se n l cnst f o p ih l hn co tro l gh l w m d fre un e n e r h h n t e
h g mi band. Ech a r onsi o a fre u n y e ec i n c nrol a d a o st n cu l ve o t ol w th b th b n s thi l os t o d
ih d a p i c st f q e c s l t o o t n b o ad t e l c n r , i o ads a l w w mi
fre u ne o e c nroll d ndepen e tl Th s al o s ve y c ra id a dc n rol. s n e p ra e ri w t o rmo oswitchq eci s t b o te i d ny.il w ra cu te mbn o t U i g th a m tc s ich r e te fo t
b th c nro s may e i c e n n ff.
o o tl b sw t h d o a d o
P r m tr c i s th: hs switch tu s o tew b n a am tric m d n e c nro s. (C na so ec n roll dr mo ly v a the
aa e i Md wi c T i rn n h t o a d p re ira g o t l a lb ot e ete i
fo t w t ) Th sw tch ill m n t d hnoeate .
osich e i s i u i a e w e p rd
Gr phi Sl rs: he si i e n l i d vi u lfre u n a d o l ow uo d u yo r so n . Thi n e ueu f r so o s e oa c ide T x sl d rs co tro ni d a q e cy b n s t a l yo t a j st u udsca b s fl o l ' tc. r
a n ve l qd us . t rt w t al t e c nrols i t ec n re ro e ente posi i n and d sma l amo n s o b o t and t b i our
s a o ra l e a j t Sa i hlh o t nh e t ze d td t o a dl u t f o s cu to ota n y
ds re ound. he sl d r L 's st y i lmi a ed e n hnth raphic inctive.
e i d s T i e ED a l u n t ve w e e g s i a
Gr phi Eq witc : T i i t rn n th G aphi li e l unted hnre ed). t s a so cnroll b e remo ly vi teotsw tch
a c s hhs sw tch u s o erc s drs (i l mi aw e p ss I i l o tal te a h f oi.
Peenc C tro Bo s s the id o i h fre u ne o ng o he p wr a l fie t a d b ig tn ss a d edge to yo r so n .
r s e on l: o t m t h g qeci s g i t t o e mp i r, o d rhe n u u d
Wh nt o ro he co tro ha o ff ct. e e ting u in tiall rt the ze o p si in n d p se c s re ure t o t i yo r
e se tze tn l sn e e Wh ns t p iy sta a t r o t o a d a d re n e a qi d o b a n u
dsi e ound.
er d s
Volu e ontr l: djus s the udel sent t t epowe amp ifi r and sp a e S awith th s e t ze a d tu up o l fr yo
mC o At so n l ve oh r l e e k rs. t rt i s t o ro n rn sl w y a te u
hve r ctly set th in u l vels o t eis lay.
aco re ep t e n h d p
(s e i p t e l m tere n u l ve e).
S nd switc Th s s u doun o and o the oe amp i ir. ou ol al ays sw th o t e mp i i r w t t e i c e t ta by h: iise t t r n ff FET p w r l f e Y sh ud w i c n h a lfei h h sw th s t o
th t n b o tio . Ate 0 seco dnre h V l m s se to m ni u h n i c er n p si on n t e amp i i r is ready o
e s a d y p si n fr 3 n s e su t eouei t i m m t e sw th to th u o ti a d h l fe to g .
A just h Vol m s re ure . The i ma l be se t t rn ff he a pl fie e e n set t . ith u u in t e o e s i ch,
d t eu e a q id sw tch y a so ud o u o t m ir b tw e s e c w o t sg h p w r wt
th re y a lo ig n i sta t urn o w e w t e b ck to the n d . e pow ri gdw t e mp i i r a te se i i good d a toe bl w n a nnt n hns i ch daru mo e Wh nen o n h a lfefr u t s a i e
tu off e s a d y switch fi t th s w ll th n avo d a y n i s a vi g t ue kers.
rn th t nb rs i i e i n o se rri n a yo r sp a
P we switc U ed or rn n nh ma n powe i to th m li e .o r h: sf tu i g o t ei r n e a p fi r
B f re icig o e su sp a rs a e co nce , e Vou C n rol i s t o n mum and that th Stan b wt i i t e ndby
e o sw t h n n nre eke r n etd th l me o t s e t mi i e d y S i ch s n h sta
psi o
o ti n
Inp ack: Pl g i yo r g i a e us n g o u l t cre n d j ck l a . p t i s b th a t ve and aiv a se
ut J u n u u t r h re i g a odq a i ys e e a e d In u su t o c i p ss e b ss.
11
22
33
4/54/5
66
77
88
99
1010
1111
1313
1212
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Laney
OPERATING INSTRUCTIONS
p dwc e t ec t i u eit n s s.w n r In ut Pa S it h: Pr ss in o r du e he np t s nsitiv y whe u ing high output bas es The s itch is illuminated whe p essed in.
nA i o ut h t m e o o nly h l he m g ma d h lt s
FET Gai : djust n c nj nc ion wit the inpu level et r t n mi al run t e disp ay wit th a ber li ht illu in te and t e red igh ju t
a m o e e y l hm ig v h r mli r le an d
occasion lly illu inating on the l ud st not s ou play. This wil give t e opti um s nal le el throug the p ea pfie . This vel m y ee
t t na g y v s s sir )
adjus ing when he EQ co trols are djusted. (Re ularly check our le el and adju t a requ ed .
i t :h l n ha t i t h p ab t g ee r
Tube Ga n con rol Tis contro co trols t e moun of drive appl ed o t e re mp tu e stage. The higher the se tin th more ov rd ive
st ll o c rh u ee i ' l ts r o h f
di tor ion wi be pr du ed. When set at ze o t e t be stage op rat s n it s c eanes low di to tion m de wit just a small amount o tube
t o o t 3 i ne m s o ti e hs n t tn p
warm h added t the s und. Set o around -4 tube d stortio b co e m re dis inct w th a warm r t icker ou d ha respo ds to laying
v a g n o - ee e s
le el nd pickin actio . Set t 7 10 giv s extr m overdriven and sustained sound .
v cnh v r e b sS n owp l ee ll hTube Le el ontrol: This co trol adjusts t e olume level f om th tu e tage. et it in conju cti n ith the in ut ev l meter. Gen ra y t e
g r e a l v c t le t a a r t vot m t
hi he th G in contro is, the lower the Le el on rol wil ne d o be to m int in the co rec le el n he e er.
a t : h s tes l i a lb o
Tube ch nnel swi ch T is wi ch nable the tube drive channe . When operated the switch is llumin ted. It may a so e perated by the
m t c re o e footswit h.
s r r nf r s o s n o p s ru b i r s
Compre so cont ol: This adjusts the amou t o comp es ion applied t your ou d. (The c m re so switch m st e lluminated fo thi
oIp t t rahnv m t ipa g r n hab l e o p rcontrol to functi n) t is im or an for co rect operation th t t e i put le el e er s o er tin a ou d t e mer ight befor the c m resso
st e n f s o o uif o h on i el et
is wi ch d i . I it i to high then more compressi n will cc r, to low t en less c mpressio w ll r su t. Also the levels wh n he
r s i wd y o i y e t r si e o yrd o ris a
comp es or s s itche on and off may var c ns derabl . Set at z ro he e i very l ttle eff ct n ou soun . As the c nt ol incre sed
o t e co i d n l d e st d a ita y d w tm re sof kn e ompressi n s a ded. The co tro shoul b used to give more us ain an tr ns en att ck to our soun . At lo er se tings
is s g u e l c s h s y u rhe n d lu e a t a
it u eful for balancin o t the sound l ve s a ro s t e trings on our g ita . T er by avoidi g sud en vo m incre ses. I is lso
f i f mii g s n wcs r fn e it ts h e o de y ref ect ve or anta nin a constant high level ou d hi h i particula ly use ul i live stag s ua ion w er y u nee to ke p ou sound
t e h b t au e e oya cup wi h the r st of t e and. I m y be t rn d off r m tel vi the footswit h.
n iwn a e Wer c s u n e Ia o
FET Gai switch: Th s s itch e ables the FET gain ch nn l. hn ope ated the swit h i ill mi at d. t may ls be operated by the
mt cre oe footswit h.
ru o ame o d pks e t t a bTune M te functi n: You c n ut y ur sound sent to the DI an s ea er by d selec ing bo h the FET ch nnel and the Tu e
h c o tr l e l lu ieo t l rchannel. In t is onditi n he ed led on y will be perman nt y il m nat d n he evel mete .
sbr edm s u r n ep .Your ignal will e out d irectly fro your ba s to the t ne out o th rear anel only
nm i w es a e.This allows silent tuning a d ut ng bet e n bas guitar ch nges tc
un l boet t h l oh
This f nction ca a so e perated by d selec ing bo h c anne s remotely on the fo tswitc .
sr iwe s a f lt w e v oepmtCompre so switch: Th s s itch turns th compres or on nd of . (Il umina es h n acti e). It may als b o erated by the re oe
o hfo tswitc .
t:h s t wess s i e o v y w e c 0 z r
Sub Swi ch T is wi ch hn pressed bypasse a ub onic f lter that is us d t a oid extremel lo fr quen ies <3 H ar iving at the
p i ss p d s ee omn w f sspeakers es ec ally when ba s boo t is ap lie . This waste power and causes excessive sp ak r cone m ve et. Ho ever or tudio
ia b i loa t f te r o s p shs t t a hf r h c b
uses t m y e des rab e t h ve the ex ra eel of he xt eme low's. S in thi case re s t e wi ch o defe t t e ilte . T e swit h will e
nn soillumi ated whe in thi m de.
o r a ua c ll p in o m r nd s na 0 eiDeep Contr l: This cont ol dj sts from tight ontro ed sound (zero os tio ) t a o e ope roun ed ba s sou d t 1 . The effct s
wae e t k n t tp ie W e st i a in so
some h t d pend nt on he type of spea er cabinets con ec ed to he am lif r. h n et ing up init ally st rt the zero po iti n and
t a a t on d dd
adjus in sm ll moun s t obtai your esire soun .
1515
1616
1717
1818
1919
2020
2121
2222
2323
2424
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Fan: The cooling fan is automatically controlled by how hard the amplifier is having to work. So during quiet playing the fan will be
almost silent and during loud passages the speed will increase to assist cooling.The amplifier is designed with plenty of ventilation so
overheating is very unlikely unless the ventilation is obstructed. Should this happen the amplifier will automatically turn to standby mode
and not switch back on until it has cooled. During this period the fan will revert to high speed mode to speed cooling. Whilst waiting,
check that the fan and the ventilation are not blocked. This will speed the return to normal operating.
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Laney
OPERATING INSTRUCTIONS
Cut out: This is provided to protect the amplifier in place of a power fuse. In the unlikely event of it operating the button will protrude out
farther than normal and can be re-set by pushing back in. It may take several seconds before it can be re-set. If it trips again check for
possible causes: damaged tubes wrong speaker connections etc. Should this not cure the problem refer to a qualified technician.
Speaker Connectors: There are two parallel connected Speakon /Jack combination sockets provided. The minimum total impedance
load is 4 Ohms (see speaker connection details It is very important to observe correct speaker matching and connection to avoid damage
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to your amplifier. When using Speakon connectors they should be wired 1+ to the positive speaker terminal and 1- to the negative terminal
2+ and 2- are unused and not connected within the amplifier.
When using Jack leads ensure they are properly rated speaker cable and not instrument types. Jacks should be wired tip to + speaker
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terminal and body to - speaker terminal. For long term reliability we recommend using Speakon connectors when ever possible.
Preamp out Power Amp in jacks: These jacks are primarily used to connect other power amplifiers or connect Nexus Tube amplifiers
together to boost power outputs. When connecting to another power amplifier the preamplifier output jack should be used. The level at this
jack is nominally +13dBu or 3.4V at full power. The signal at this socket will be affected by all the controls on the preamplifier. When
connecting two Nexus Tube amplifiers together to boost power levels the master amplifier preamplifier out jack should be connected to the
power amplifier input socket of the slave. The master will then be in complete control of the slave power amplifier.
DI output socket and switches: This socket is a balanced signal output for sending to mixing desks, PA etc. The signal may be sent from
the preamplifier before any of the EQ controls or effects (Pre-Post switch set to Pre) or after the EQ and effects but prior to the Volume
control (Pre-Post switch set to Post). The nominal level is -20dBu or 100mV. A ground lift switch is provided to avoid any hum problems
there may be when connecting to a mixing desk/PA. (Try it set in both positions to find the best performance).
Tuner Out Jack: This socket is normally used for connecting a tuner to allow continuous tuning of your guitar. When the amplifier is muted
a signal is still present at this socket. The output level is similar to your guitar.
Effects Send Return Jacks & Bypass switch: These sockets are used for connecting external effects processors to your amplifier. The
insertion point is after the onboard preamplifiers and EQ but prior to the Volume control. Use the send jack to connect to the input of your
processor and the return for the output. The loop is an insert type so all of your signal is routed via the external processor. So any blending
between direct and processed signals must be performed in the processor. When not using the Loop it is advisable to operate the Effect
bypass switch to avoid any reliability problems sometimes associated with jack connectors, even though gold jack sockets are used here for
increased reliability. The signal level is nominally -10dBu or 250mV.
Footswitch connector: This D type connector is used to connect the included dedicated FS7 footswitch to the amplifier. Never use it for
any other purpose as damage may result.
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Fan: The cooling fan is automatically controlled by how hard the amplifier is having to work. So during quiet playing the fan will be
almost silent and during loud passages the speed will increase to assist cooling.The amplifier is designed with plenty of ventilation so
overheating is very unlikely unless the ventilation is obstructed. Should this happen the amplifier will automatically turn to standby mode
and not switch back on until it has cooled. During this period the fan will revert to high speed mode to speed cooling. Whilst waiting,
check that the fan and the ventilation are not blocked. This will speed the return to normal operating.