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Specifications (P-150M)
(DIRECT OUTPUT)
Power Output
150 watts minimum sine wave continuous average power
output with 8-ohms loads over a power band from 20Hz to
20kHz. The maximum Total Harmonic Distortion (THD)
at any power level from 250 milliwatts to 150 watts shall
be not more than 0.1%.
220 watts minimum sine wave continuous average power
output with 4-ohm loads over a power band from 20Hz to
20kHz. The maximum Total Harmonic Distortion (THD)
at any power level from 250 milliwatts to 220 watts shall
be not more than 0.15%.
160 watts continuous average sine wave power into 8
ohms with less than 0.1% THD, at 1 kHz.
Frequency Response
+0dB, -0.5dB, 20Hz to 20kHz
Total Harmonic Distortion
Less than 0.01% at 150 watts, 8-ohms, 1kHz
Less than 0.1% at 150 watts, 8-ohms, 20Hz to 20kHz
Intermodulation Distortion
0.05% using frequencies of 60Hz and 7kHz, mixed in a ratio
of 4:1, at power output of 50 watts into 8-ohms
Input Sensitivity
An input of +4dB (1.23V), ±0.5dB, produces an output of
150 watts into 8-ohm, INPUT ATTENUTOR set for
maximum level
Input Impedance
10k-ohms (unbalanced)
Damping Factor
Greater than 150 at any frequency from 20Hz to 1kHz
Greater than 70 at any frequency from 20Hz to 20kHz
Impedance Actual Output
Less than 0.06 ohms at any frequency from 20Hz to 1kHz
Less than 0.12 ohms at any frequency from 20Hz to 20kHz
Hum and Noise
110dB below rated output (20Hz — 20kHz)
115dB below rated output (IHF-A weighted)
Rise Time
10 microseconds, or better (10% -90% of 1 volt at 1kHz
square wave output)
Slew Rate
10 volts per microsecond, or better (at 50 watts into 8-ohm,
200kHz square wave input)
Phase Shift
20Hz to 20kHz, ±15 degrees
Offset Voltage
Less than ±10mV DC
Input Connectors
One "male" and one "female" XLR connector in parallel,
pin 2 "cold", pin 3 "hot", and pin 1 "shield". XLR's are
unbalanced and parallel to two tip-sleeve (standard)
phonejacks.
Accessory Socket
8-pin octal socket accepts an optional matching trans-
former module for balanced input, or user options (pins
include ±VCC, signal input/output and circuit ground)
Output Connectors
Barrier Strip Terminal
Ground Terminal Strip
2 lug terminal block with removal shorting strap
Indicators
Green LED for signed presence
Red LED for output clipping
Red LED for circuit protection and thermal warning
Green LED for power ON.
All manuals and user guides at all-guides.com
— 4 —
Controls
Input Attenuator
22-position, log-linear, detented and dB-calibrated input
attenuator attenuates input signal in 2dB steps from 0dB
attenuation to -34dB, then in steps of -37dB, -42dB,
-50dB, infinity.
Circuit Breaker AC Switch
Accessory Switch (IN/OUT)
Bypass for octal socket
Overall Protection
AC line is protected by circuit breaker.
Protection LED flash when heat sink temperature reaches
more than 105°C.
Protection LED come on when the relay is activated by the
DC current flow to output or by short circuit.
Turn On/Turn Off
No turn off transient. Three second delay turn on with
minimum thumps and no dangerous transients
AC Line Voltage
AC mains. 50Hz/60Hz
Power Consumption
400 watts maximum
Finish
Black painting
Dimensions (W×H×D)
483 × 133 × 475 (mm)
19 × 5-1/4 × 18-3/4 (inches)
Weight
18kg (40 lbs)
SPECIFICATION (TRANSFORMER OUTPUT)
Power Output
150 watts minimum sine wave continuous average power
output with either a 25-volt or 70-volt distribution system
over a power band from 30Hz to 15kHz.
The maximum THD at any power level 250 milliwatts to
150 watts shall be not more than 0.6%.
Output Impedance
Designed for load impedances of 4.2-ohms (25 volts) or 33-
ohm (70 volts).
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