S P E C I F I C A T I O N S
®
ARCHITECTURAL ACOUSTICS
®
Outputs:
Direct: 4 ohms
XFMR: 8 ohms, 600 ohms, 25 V, and
70 V (balanced—100 V 220/
240 Export)
Ch. 4 Output, Loop Out, AUX Out:
1 V @ 100 ohms
Inputs:
Channel 1: Lo Z 500 µV @ 1.8 K ohms
(XLR or screw terminals)
Hi Z 50 mV @ 9.5 K ohms
(screw terminals)
Channel 2: Lo Z 500 µV @ 1.8 K ohms
(XLR or screw terminals)
Hi Z 50 mV @ 9.5 K ohms
(screw terminals)
Channel 3: Lo Z 500 µV @ 1.8 K ohms
(screw terminals)
Hi Z 50 mV @ 9.5 K ohms
(RCA or screw terminals)
Channel 4: Lo Z 500 µV @ 1.8 K ohms
(screw terminals)
Hi Z 50 mV @ 9.5 K ohms
(RCA or screw terminals)
Page: 100 mV (600 ohm
transformer balanced
screw terminals)
Loop In: 1 volt @ 2.6 K ohms
Tone Controls:
Bass: ±10 dB @ 100 Hz
Treble: ±10 dB @ 10 kHz
Contour: +6 dB @ 100 Hz and 10 kHz
Controls:
Channel 1 Volume Control
Channel 2 Volume Control
Channel 3 Volume Control
Channel 4 Volume Control
Page 1 Volume Control (rear panel
screwdriver adjust)
Page Mute Threshold Control (rear
panel screwdriver adjust)
Channel 1 Mute Threshold Control
(rear panel screwdriver adjust)
Bass Control
Treble Control
Master Volume Control
Contour Switch
Link Switch
Power Switch
Indicators:
Power Indicator (Red LED)
Activity Indicator (Green LED)
SPS™ Active Indicator (Yellow LED)
Mute 1 and Mute 2 Indicators (Yellow
LED's)
Muting:
Mute 1: Page input overrides Chan-
nels 1 through 4 with adjust-
able threshold
Mute 2: Channel 1 overrides Channels
2 through 4 with adjustable
threshold
Power Requirements:
Domestic: 120 V AC, 60 Hz, 400 watts
Export: 220-230/240 V AC, 50/60 Hz,
400 watts
Other Features:
Remote Volume Control via screw
terminals
Mute 1 and Mute 2 switch closure via
screw terminals
24 V DC output
24 V DC phantom power on Lo Z inputs
SPECIFICATIONS
Output Power:
150 watts
Frequency Response:
Power Amplifier:
Direct: ±0.5 dB, 20 Hz to 20 kHz
XFMR: ±0.5 dB, 50 Hz to 20 kHz
Preamplifier:
±1.5 dB, 50 Hz to 20 kHz
Distortion:
Power Amplifier:
0.02% (1 kHz)
Preamplifier:
< 0.1% with nominal gain settings
S/N Ratio (20 kHz BW):
Master Volume Min:
95 dB below rated power
Master Volume Max:
80 dB below rated power
Hi Z Inputs:
75 dB below rated power
Lo Z Inputs:
65 dB below rated power
Power Bandwidth:
Direct: 20 Hz to 20 kHz < 0.5% THD
XFMR: 50 Hz to 20 kHz < 0.5% THD
Output Regulation:
Direct: < 0.5 dB
XFMR: < 1.0 dB
UMA
™
150T
II
Mixer Amplifier
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