Power Output Per Channel: (Refer to Figure 3. Ambient
room temperature for tests: 25-degrees Centigrade.)
200 Watts continuous average sine wave power into
8 ohms with less than 0.05% THD, (Total Harmonic
Distortion), over a bandwidth of 20Hz to 20kHz,
both channels driven.
230 Watts continuous average sine wave power into
8 ohms with less than 0.05% THD, at 1 kHz, both
Frequency Response: (Refer to Figure 5.)
+0dB, -0.5dB, 20Hz to 50kHz.
Total Harmonic Distortion: (Refer to Figure 6.)
Less than 0.005% @ 50 Watts, 8 ohms, 1kHz.
Less than 0.01% @ 150 Watts, 8 ohms, 20Hz to
Intermodulation Distortion: (Refer to Figure 7.)
Less than 0.01% using frequencies of 70Hz and
7kHz, mixed in a ratio of 4:1, single channel power
output of 150 Watts into 8 ohms.
An input of +4dB* (1.23V), ±0.5dB, produces an
output of 230 Watts into 8 ohms (maximum output
power), INPUT attenuator set for maximum level.
25k-ohms, minimum (unbalanced).
Damping Factor: (@ 8 ohms / (Refer to Figure 8.)
Greater than 300 at any frequency from 20Hz to
1kHz; greater than 70 at any frequency from 20Hz
Actual Output Impedance: (Refer to Figure 9.)
Less than 0.04 ohms, from 20Hz to 10kHz.
Hum and Noise:
At least 110dB signal-to-noise ratio (l.H.F./A.S.A.
3.8 microseconds, or better (10%-90% of 1 volt @
1kHz square wave output).
45 volts per microsecond, or better (at 175 Watts into
8 ohms, 200kHz square-wave input).
Channel Separation: (Refer to Figure 10.)
At least 82dB at 1kHz, at least 75dB at 20kHz.
*In these specifications, when dB represents a specific voltage,
0dB is referenced to 0.775V. "dB" is a voltage level, whereas
"dBm" is a power level. 0dBm is referenced to 1mW (0.775V
driving a 600-ohm termination). For example, when 12.3V is
fed to a high impedance, the level is designated "+24dB." When
+24dB (12.3 volts) drives a 600-ohm termination, the level is
designated "+24dBm." The level in "dB" is specified, wherever
applicable, to avoid confusion when the input is fed by various
low and high impedance sources. See the APPENDIX beginning
on Page EIGHT 1 for a further discussion of dB.
Phase Shift: (Refer to Figure 1 1 . )
20Hz to 20kHz, ± 1 0 degrees.
Less than ±10mV DC.
Unit Step Function Response: (Refer to Figure 27.)
See scope photo (Page FOUR 4) and discussion,
Page FOUR 6.
Massive black anodized heat sinks are thermally
joined with the chassis, thereby utilizing the entire
amplifier as a heat sink.
Thermal warning light turns on when heat sink
temperature reaches 100-degrees Centigrade.
A self-resetting thermal switch shuts down the AC
power if the power transformer winding temperature
reaches 130-degrees Centigrade. See Page SIX 13 for
power overload circuit specs.
Turn On/Turn Off Specs:
There is no turn off transient; the turn on transient
is minimal (see Page SIX 13). Warm up time is less
than 0.2 seconds.
For the U.S. and Canadian models: AC, 120 Volts
nominal, 50-60Hz (105V min., 135V max.); 8
amperes maximum at 120V AC; 960 volt-amperes
maximum at 120 Volts; approximately 57 volt-
amperes at idle.
For other territories models: 1,300 Watts, 220 or 240
Volts AC nominal, 50-60Hz.
Efficiency: (Refer to Figure 12.)
As high as 63%; see Page FOUR 2.
NOTE: All performance specifications are made on U.S.
and Canadian models at an AC line voltage of 120 Volts
±1%, using a ±1% nonreactive load resistor at an
ambient room temperature of 25-degrees Centigrade.
Also effective for other territories' models.
One "male" and one "female" XLR connector in
parallel, pin 2 "hot," pin 3 connected to pin 1
(shield); switchable for pin 3 "hot." XLR's are un-
balanced and in parallel with two tip-sleeve
(standard) phone jacks.
Standard 3/4-inch spacing, "5-way" binding posts.
Meters and Indicators:
Two peak reading meters (one per channel) indicate
the instantaneous power output, over a 5-decade
(50dB) range. "0dB" represents 100 Watts into
8 ohms. (P-2200 only)
One "power ON" indicator LED; one "Thermal
Overload" indicator LED.
Meter Rise Time (P-2200 only):
Less than 10 milliseconds; (-40dB to 0dB
on the scale).
Meter Release Time (P-2200 only):
Less than 0.8 seconds; (0dB to -20dB on the
Meter Accuracy (P-2200 only):
See graph, Figure 13, Page FOUR 2.