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  9. AUSTRALIAN MONITOR K SERIES - User manual

AUSTRALIAN MONITOR K SERIES - User manual

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lntroduction
The oldest continent in the world and the last of the true pioneering countries, Australia is without doubt the
most arduous, toughest testing ground in the world for any sophisticated 'state of the art' electro-mecha n ica I
equipment.
Around 3000 miles coast to coast Australia offers an incredible variety of true 'a ll terrain'touring conditions.
From hot tropical rainforests, to the vast open spaces and rocky dusty roads of the western deserts. Night after
night, town after town, anything can and does happen: t 15% main's voltage swings, ultra high humidity or an
incredible + 45" C temperature. This is Australian concert touring at it's most extreme and the birthplace of
Austra lian Monitor a m p lifiers.
With a heritage as tough as it gets Australian Monitor has developed a powerful range of amplifiers designed to
survive not only the severity of the 'Diesel and Dust' touring environment, but also to provide the 'Reference
Standard' of transparent sonic integrity demanded by the industry's foremost international audio recording studios.
Whatever your requirements Australian Monitor can help you. Our products are equally well suited to a variety
of applications :- Broadcast facilities, CD mastering Lab's, Cinema's, Concert halls, Olympic stadiums, Houses of
worship, Night clubs. and Theatres. ln fact Australian Monitor equipment can be found in over 38 countries around
the world.
The K-SERIES is a pure example of Australian Monitor's design philosophy. Quality without compromise, the
combination of solid mechanical construction, high performance electronics and comprehensive functionality.
K-SERIES Features
I 2 Unit, heavy duty custom alloy chassis
T
T
I
I
I
I
Modular construction easy
ma intena nce
Symmetrical layout - even weight
d istribution
High efficiency toroida I
mains transform er
Well reg u lated, high i
energy linea r power
supply
B ind ing post or Spea kon
output con nectors
Stereo, bridged and mono
operation
Balanced inputs and buffered attenuators
Optional plug in EQ, Limiter and filter modules
Calibrated 21 position detented attenuators
Fault and status LED indicators
Su per efficient cooling system
Twin dual speed fans
Protection Network
Sonic Performance
Exhibiting allthe main criteria required in today's
exceptionally demanding recording process, the
Australian Monitor K-5ERlES has fast established itself
as a proven audio standard in world class ultra critical
studio monitoring amplif iers. The main component of
any monitoring situation the K-SERIES demonstrates
the ultimate in sonic accuracy, super fast transient
response, solid imaging and subtle. open, crystalclear
reprod uction.
qor,-
Construction
The K SERIES is also built to last. The 2 unit fully
modular construction is crafted from custom
a lloy extrusions. Multiple po int
intercon nection of the
modules and the
ha rdened steel pan,
create a robust and
highly rigid chassis
a ble to withstand the
extremes of
mishandling and abuse
experienced in
intern ationa I concert
touring systems. The
symmetrical and open layout
yields even weiqht d istribution
and total accessibility shou ld
ma intenance ever be required.
Australian Monitor provides a multi-point
maximum protection network for both the K-SERIES
amplifier and loudspeaker system. The eight point
network consists of :- Mains circuit breaker,
lndependent rear panel t power rail fuses, lnput
muting at turn on, Short circuit protection with LED
indication, lnput over voltage protection, R.F
Interference suppression, Thermal overload protection
with LED indication, Mains inrush current suppression
and LED indication. All K-SERIES circuit designs, layout,
grounding, decoupling. and componentry have been
optimised to provide stability, reliability and of course
longevity, no built in obsolescence from Australian
Monitor.
K88rx Backpanel with rear panel attenuators
and standard K-Series back panel
Power Plant
A massive toroidal ma ins transformer forms the
heart ofthe K-SERlE5 amplifiers, exhibiting excellent
load regulation, high energy, high current-capability,
linear power supply. The associated electrolytic power
capacitors are high ripple, high temperature (105'),
low E.5.R, mil spec rated. Minimised interconnection
and heavy ga uge wiring maximise power transfer to
any current dependant load, for extended periods
u nder very heavy duty cycles. Elevated driver stage
supplies are utilised to ensure total drive
to the gates of the latest generation
lateral Metal Oxide Silicon Field
Effect Transistor output
devices. Twin regulated
power su pplies are
provide for the pre-amp
circu itry.
Cooling
System
Each channel of a K-
SERIES amplif ier is ind ivid ua lly
cooled by a dualspeed axialfan.
THX Approved
The THX sound system testing program establishes
the guidelines and technical performance
specifications for amplif ier desig n, quality and
durability. Lucasfilm / THX specify and approve all
amplifiers used in THX cinema theatre sound systems
a round the world .f he fully approved Austra lian
Monitor K88rx CINEMA amplifier exceeds in all aspects
the guideline specifications required by THX.
NEMKO Approved
K-SERIES products meet or exceed the stringent
technical safety standards, laid down by the
independent Scandinavian testing and certification
a uthority NEMKO.
Fresh cool air drawn from the front {l
vents is passed through the heat ${
exchange tunnel and exhausted from
the rear of the unit. Each heat exchange
module has a total perimeter of 1.5M (59")
with directly cooled surface area of 450,000
mm'?(700"'z) The direct and clear path through
the tunnel minimises dust and particle deposits.
A louvred grill at the entrance eliminates the entry
of larger objects and reduces the presence of
precipitation.
Five Year
Warranty
All published specifications are the
minimum prod uction performa nce
sta ndard of any K-SERIES
product. Austra lia n Monitor
products are ma n ufactu red
to the highest tolera nces
and su bjected to extensive
quality control before
shipment from the factory.
Austra lia n Monitor
quarantees that all of its
amplifiers will meet or exceed
published specifications for a
period of five years from date of purchase.
JTHX IS A REGISTERED TRADEI\IARK OF THE LUCAS ARTS
ENTERTAIN[,IENT CO
K-SERIES
Techn i ca I Specifi cati o n s
output power (watls) 8 ohm
F.T.C. 20llz 20kllz @ 0.1% THD
(Pre-stress 4 dB below rated power
for I horrand rated powerfor5 l\,4 n)
both channe s dr ven 390w
E.l.A. l kHz <0.05% THD
(Pre stress at rated power for 5 l\,4in)
sing le channel driven 430w
both channe s dr v€n 400w
Pulsed @ I kHZ, at onset of cl pp ng
10% dirty cyc e, s ng € channel d I v€n
10% dlly cyc e, both chanre s driven
Bridge Mode 1200w
2 ohm Capabilily
singl€ charnel dr v€n B00w
both channe s drivef 700w
Dislorti0n @ 0.5d8 below clipping re 4 0hms
<0.005%@lkHz4ohms
<0 0l5% @ 60Nz - 7kH7 4:1
IMD CC F
Frequency response
-3dB po nts
Damping lactor
0utput impedance
lnp ut impedance
lnp ul sensilivily
lnpul CMRB
Vollage gain
Bise lime
Slew rate
Noise
Crosstalk
Weight net
Weiqht shipp ng
Dimensions W x llx D
excluding hand les
n clud ng handles
<0.008% @ 14kNz-1 5kNz 1 :l
20Nz-20kHz r 0.15d8
5Hz-95kHz 0dB = lkHz
500:1 @lkllzBohms
0.015 ohms @ lkl'lz
25k ohms, ba afced
1.2 volts (+4dB) 8!l, 1 .04 vo ts
(+2.6d8)4o
>80d8 @ l kHz
33dB/45x @ l kHz
2.4!S lor 80% ol lead ng edge 145v
pk-pk 20kHz square wave re Sohms
50v|lS
100d8 linear (30kHz), 106d8 A weighted
90dB @ l kHz
42 bs/19k9
47.5lbs/21.5k9
2U standard rack moLnting
'19 x 3.5 x l4.Binches/482 x 86 x 375mm
19 x 3.5 x 17.ginches /482 x BB x 455mm
0ulput power (walts)
F.T.C. 20Hz-20kHz @ 0 1% TllD
(Pr€-stress 4 dB be ow raled power
l0r I hour and rated power l0r 5 lvlin)
both chan I els driven
E.l.A. 1kNz,<0 05% THD
(Pre-stress at rated power f0r 5 lM n)
s ng e channe driven
both chan nels d rlven
Pulsed @ I kHZ, al onset of cl pp ng
10% duty cyc e, single channel driven
'10% duty cyc e, both chann€ s dr ven
Bridge Mode
2 ohm Capability
sing ls channeldriven
both channe s dr v€n
Disl0rti0n @ 0.5d8 below c lipp in q re 4 0hms
<0.005%@lkHz4ohms
<0.015% @ 60llz - TkHz 4:1
IMD CCIF
Frequency response
-3dB points
Dampinq factor
0utput impedance
lnput impedance
lnput sensitivily
lnpul CMBR
Vollage gain
Rise time
Slew rale
Noise
Crosslalk
Weight n€t
Weight sh pping
DimensionsWxHxD
excluding hand es
fcludinq haf d les
<0 008% @ 14kH7 15kH7 1:1
20Hz'20kHz 1 0.15d8
5Hz 95kllz. 0dB = I kHz
500:1 @ lkHzBohms
0.015ohms@1kHz
25k ohms. balanced
1 .2 vo ts (+4dB) Bo. 1.04 volts
(+2.6d8) 4{)
>B0dB @ l kHz
31dB/37x @ 1 kHz
2.4irS for B0% of leading edge 127v
pk-pk 20kHz square wave re Bohms
42vtS
100d8 inear (30kNz), 1 04dB A weighted
90dB @ l kNz
37.5 bs/17k9
43lbs/19.5k9
2LJ, stafdard rack mounting
19 x 3.5 x 14.8 nches / 482 x 86 x 375mm
19 x 3.5 x 17.9 nches / 482 x 88 x 455mm
tu
Austra lian Monitor Auslralian Mon lor s designed and
manuiactured by
Australian Monitor Pty Ltd
29 Hope St, Ermington, Sydney, NSW 2115 Australia.
Phone: +61-2-9874 9355, Fax: +61-2-9874 9366
Email: ausmon @ mypostbox.com
ln keep ng w th our policy of continually mproving the lechn cal qua lty of our
products, we reserve the rlght to change component types, manuiactures, sources
ofsupply or lechnica specifications at any tirne.
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