Specifications - Toa P-75D Original Instruction Manual

Specifications (P-75D)
Power Output
75 watts minimum sine wave continuous average power
output per channel with both channel driving 8-ohm loads
over a power band from 20Hz to 20kHz. The maximum
Total Harmonic Distortion (THD) at any power level from
250 milliwatts to 75 watts shall be no more than 0.1%.
100 watts minimum sine wave continuous average power
output per channel with both channel driving 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 100 watts shall be no more than 0.15%.
80 watts continuous average sine wave power into 8 ohms
with less than 0.1% THD, at 1 kHz, both channels driven.
Frequency Response
+0dB, –0.5dB, 20Hz to 20kHz
Total Harmonic Distortion
Less than 0.005% at 75 watts, 8-ohm, 1kHz
Less than 0.1% at 75 watts, 8-ohm, 20Hz to 20kHz
Intermodulation Distortion
0.05% using frequencies of 60Hz and 7kHz, mixed in a
ratio of 4:1, at power output of 25 watts into 8-ohm
Input Sensitivity
An input of +4dB (1.23V), ±0.5dB, produces an output of
75 watts into 8-ohm, INPUT ATTENUTOR set for
maximum level
Input Impedance
10k-ohm (unbalanced)
Damping Factor
Greater than 150 at any frequency from 20Hz to 1kHz
Greater than 50 at any frequency from 20Hz to 20kHz
Impedance Actual Output
Less than 0.06 ohms at any frequency from 20Hz to 1kHz
Less than 0.15 ohms at any frequency from 20Hz to 20kHz
Hum and Noise
109dB below rated output (20Hz — 20kHz)
114dB 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 25 watts into 8-ohm,
200kHz square wave input)
Channel Separation
At least 95dB at 1kHz
At least 85dB at 20kHz
Phase Shift
20Hz to 20kHz, ±15 degrees
Offset Voltage
Less than ±10mV DC
Input Connectors (per channel)
One "male" and one "female" XLR connector in paralle, 2
"cold", pin 3 "hot", and pin 1 "shield". XLR's are
unbalanced and in parallel with two tip-sleeve (standard)
phone jack.
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 (per channel)
Barrier Strip Terminal
Ground Terminal Strip
2 lug terminal block with removal shorting strap
Indicators
A pair of green LED's for signal presence
A pair of red LED's for output clipping
A pair of red LED's for circuit protection and thermal
warning
A green LED for power ON
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Controls
Input Attenuators
22-position, log-linear, detented and dB-calibrated input
attenuators (one per channel) attenuates input signal in
2dB steps from 0dB attenuation to -34dB, then steps of
-37dB, -42dB, -50dB, infinity.
Circuit Breaker AC Switch
High Pass Filter Switches (IN/OUT)
-12dB per octave at 15Hz
Accessory Switches (IN/OUT)
Bypass for octal socket
Mode Switch
Switchable for stereo/mono mode operation
Overall Protection
AC line is protected by circuit breaker.
Protection LED's flashes when heat sink temperature
reaches more than 105°C.
Protection LED's turn on when the protection relay
activates in such cases that DC currant is fed to output,
and that short-circuit occurs.
Turn On/Turn Off
No turn off transient. Three second delay turn On with
minimum thumps and no dagerous transients
AC Line Voltage
AC mains. 50Hz/60Hz
Power Consumption
400 watts maximum
Finish
Black painting
MONAURAL MODE SPECIFICATIONS
(P-75D)
Power Output
150 watts minimum sine wave continuous average power
output monaural driving 16-ohm 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 no more than 0.1%.
200 watts minimum sine wave continuous average power
output monaural driving 8-ohm loads over a power band
from 20Hz to 20kHz. The maximum Total Harmonic
Distortion (THD) at any power level from 250 milliwatts
to 200 watts shall be no more than 0.15%.
210 watts continuous average sine wave power into 8-ohm
with less than 0.1% THD at 1kHz
Frequency Response
+0dB, –0.5dB, 20Hz to 20kHz
Total Harmonic Distortion
Less than 0.05% at 200 watts into 8-ohm at 1kHz
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-ohm
Damping Factor (at 16-ohm)
Greater than 100 at any frequency from 20Hz to 1kHz
Greater than 30 at any frequency from 20Hz to 20kHz
Impedance Actual Output
Less than 0.15-ohm at any frequency from 20Hz to 1kHz
Less than 0.3-ohm at any frequency from 20Hz to 20kHz
Hum and Noise
112dB below rated output (20Hz to 20kHz)
116dB below rated output (IHG-A weighted)
Note: 0dB is referenced to 0.775 volts RMS.
Dimensions (W×H×D)
× ×
483 89 475 (mm)
19 × 3-1/2 × 18-3/4 (inches)
Weight
13kg (29 lbs)