Power Output
300 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 300 watts shall be no more than 0.1%.
480 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 480 watts shall be no more than 0.15%.
320 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 0.01% at 300 watts, 8-ohm, 1kHz
Less than 0.1% at 300 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 100 watts into 8-ohm
Input Sensitivity
An input of +4dB (1.23V), ±0.5dB, produces an output of
300 watts into 8-ohm, INPUT ATTENUTOR set for
maximum level
Input Impedance
10k-ohm (unbalanced)
Damping Factor
Greater than 260 at any frequency from 20Hz to 1kHz
Greater than 95 at any frequency from 20Hz to 20kHz
Impedance Actual Output
Less than 0.03 ohms at any frequency from 20Hz to 1kHz
Less than 0.08 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 100 watts into 8-
ohm, 200kHz square wave input)
Channel Separation
At least 90dB at 1kHz
At least 75dB 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)
Standard 3/4-inch spacing, "5-way" binding posts
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
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 Dimensions (W×H×D)
Power Consumption 483 × 222 × 475 (mm)
1.7k watts maximum 19 × 8-3/4 × 18-3/4 (inches)
Finish Weight
Black painting 35kg (77 lbs)
MONAURAL MODE SPECIFICATIONS
(P-300D)
Power Output
600 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 600 watts shall be no more than 0.1%.
960 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 960 watts shall be no more than 0.15%.
1100 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 0.005% at 960 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 200 watts into 8-ohm
Damping Factor (at 16-ohm)
Greater than 160 at any frequency from 20Hz to 1kHz
Greater than 50 at any frequency from 20Hz to 20kHz
Impedance Actual Output
Less than 0.1-ohm at any frequency from 20Hz to 1kHz
Less than 0.3-ohm at any frequency from 20Hz to 20kHz
Hum and Noise
109dB below rated output (20Hz to 20kHz)
114dB below rated output (IHG-A weighted)
Note: 0dB is referenced to 0.775 volts RMS.
– 6 –
Specifications (P-300D)
To Next Page
Loading...
Need help?
General
