AUSTRALIAN MONITOR KA1200 User manual

situation critical
RELIABILITY IS EVERYTHING
The Australian Monitor KA1200 provides serious performance for not so serious dollars.
A professional amplifier in this price range with this sort of superior sonic performance and the flexibility of
accepting optional plug-in active filters and limiters, was unheard of before the Australian Monitor KA range.
Having built our reputation in the demanding concert and large installation markets,
we now offer a high value for money amplifier that all venues can enjoy.
• 2RU Heavy Duty custom alloy chassis
• Modular Construction - easy service
• Symmetrical Layout - even weight distribution
• Binding posts and ‘speakon’ outputs
• Balanced inputs and buffered attenuators
• Optional Plug in signal modifiers, high pass &
low pass filters plus limiter module
• Dual twin speed axial fans
• Efficient front to back cooling
• 21 position detented attenuators
• 1 watt and clipping indicators
Features:

Output Power RMS (bridge mode)
16 ohm 8 ohm
800 watts 1200 watts
Output Power RMS (per channel)
8 ohm 4 ohm
440 watts 600 watts
KA1200
• Independent rail fuses
• Input muting at turn on
• Input over voltage protection
• R.F. Interference suppression
• Short circuit protection and indication
• Thermal overload protection
• Mains inrush current suppression and indication
• Layout, grounding, decoupling and componentry have
been optimised to provide the user with
stability, reliability and longevity.
Output Impedance @ 1 kHz: <0.025 ohms
Damping Factor @ 1 kHz re 8 ohms: >320:1
Output Rise Time: <2.8m S (80%, leading edge of 20kHz square wave)
Slew Rate: 60V per m S (leading edge, 20kHz square wave @ clipping)
Weight: Net 37.5 lb (17kg), Shipping 43lb (19.5kg)
Distortion (0.5 dB below clipping re 4 ohms): THD+N (@ 1 kHz) <0.01%
Frequency Response: 20 Hz - 20 kHz < ± 0.15 dB
-3dB points <10 Hz - 90 kHz
Input Impedance: Line to Line (Balanced) 30k ohms
Input Sensitivity (nominally): For rated power re 8 ohm 1.26 Vrms (+4 dBu)
For rated power re 4 ohm 1.10 Vrms (+3 dBu)
Signal/Noise ratio: “A” weighted (re 8 ohm rating) >100 dB
Crosstalk: @ 1 kHz (re 8 ohm rating) >90 dB
Dimensions: excluding handles 3.5h x 19w x 14.8d (inch)
88h x 482h x 375w (mm)
including handles 3.5h x 19w x 17.7d (inch)
88h x 482w x 450d (mm)
(19 inch EIA rack mounting, 2 units high)
Power: 240 & 110V versions available
Protection:
Specifications:
• High Pass Filter card HP1
• Low Pass Filter card LP1
• Limiter card LIM1
• Clip Limiter Card CLIM1
Options:
OTHER MODELS IN THE KA SERIES FAMILY ARE AVAILABLE.
CONTACT YOUR LOCAL DEALER OR NEAREST AUDIO TELEX OFFICE.
Authorised dealer:
NSW: Tel: [phone] Fax: [phone]
VIC: Tel: [phone] Fax: [phone]
QLD: Tel: [phone] Fax: [phone]
WA: Tel: [phone] Fax: [phone]
TAS: Tel: [phone] Fax: [phone]
SA: Tel: [phone] Fax: [phone]
NZ: Tel: [phone] Fax: [phone]
AUSTRALIAN, NEW ZEALAND
EXPORT WEBSITE:
www.audiotelex.com.au
ABN 78 001 345 482