Australian Monitor AM1200 - Manual (Page 19)

Specification 19
Test conditions
Input source = 600 ohm, Balanced and ground referenced (CMRR test had floating ground & 50 ohm
source). Mains regulated to 240 volts / 50hz. All measurements taken at binding post output terminals.
Standard production units measured. No compensation applied.
AM1200 Specifications
General
The AM1200 will deliver or exceed - 200 watts RMS into an 8 ohm load - 300 watts RMS into a 4 ohm load - 600
watts RMS bridged into an 8 ohm load *for a single, pair, or all four channels being driven continuously (with less
than 0.05% IMD and THD from 1 watt to rated power) from 20Hz to 20kHz.
Output Condition Output Power
E.I.A. Power @ 1 kHz, <0.05 % THD+N. 8 ohm 4 ohm 2 ohm
Single channel driven. 220W 370W 450W
All channels driven. 200W 320W -
Bridge mode @ 1 kHz, <0.05 % THD+N. 16 ohm 8 ohm 4 ohm
Single pair (C & D only) 410W 670W 800W
Both pairs 400W 640W -
Dynamic Power @ 1 kHz, at onset of clipping,
20 cycles @ 0dB, 480 cycles @ -20 dB.
Single channel driven re 4 ohm 410 Watts
Bridged pair driven re 8 ohm 750 Watts
Bridged pair driven re 4 ohm 1000 Watts
Distortion
(0.5 dB below clipping re 4 ohms)
THD+N (@ 1 kHz) <0.003%
IMD SMPTE (60 Hz & 7 kHz 4:1) <0.015%
IMD DIM 30 (3.15kHz square & 15 kHz) <0.008%
Output Impedance
@ 1 kHz <0.011 ohms
Damping Factor @ 1 kHz re 8 ohms >720:1
Output Rise Time
<2.2
µ
S
(80%, leading edge of 20kHz square wave)
Slew Rate >60V per
µ
S
(leading edge, 20kHz square wave @ clipping)
Frequency Response
20 Hz - 20 kHz < -0.3, -0.15 dB
-3dB points 5 Hz - 140 kHz
Input Impedance
Line to Line (Balanced) 18k ohms
Input Sensitivity
(nominally)
For rated power re 8 ohm 1.10 Vrms (+3.0 dBu)
For rated power re 4 ohm 0.92 Vrms (+1.5 dBu)
Voltage Gain
37 times (31.4 dB)
Input CMRR
@ 1 kHz (re 8 ohm rating) >90 dB
Signal / Noise ratio
"A" weighted (re 8 ohm rating) >101 dB
Crosstalk
@ 1 kHz (re 8 ohm rating) >90 dB
Weight
Net 57.2 lb (26kg), Shipping 63.8lb (29kg)
Dimensions
H x W x D
excluding handles 133 x 483 x 375 (mm)
including handles 133 x 483 x 460 (mm)
(19 inch EIA rack mounting, 3 units high)