PI 150/Pl 250/P21 50/P2250
P1250
Output Power Specs meet
FTC preconditioning criteria
OUTPUT SPECIFICATIONS
8ohms 14ohms 1
20Hz -20kHz 1kHz 20Hz -20kHz 1kHz
Continuous sine wave output power
at less than 0.05% THD 170W 185 W250 W265 W
Total Harmonic Distortion (THD) <0.007%
@85 W<0.003%
(3185 W<0.01%
@125 W<0.005%
@125 W
Intermodulation Distortion (IHD)
60 Hz &7kHz 4:1<0.005% (S) 85 W<0.01% @125 W
Power Bandwidth (@ THD *^0.1%) 10 Hz to 100 kHz @85 W10 Hz to 100 kHz @125 W
Frequency Response (1 watt output) +0.-1 dB, 10 Hz to 50 kHz
Damping Factor >110(31 1kHz >55@ 1kHz
Slew Rate ±50 volts/microsecond full swing
Signal-to-Noise (Input shorted) >110dB, -6dB/octave LPF (s> 12.47 kHz
>115dB, IHF-A network
Residual Noise
(Input ATT @> minimum) <-80 dBm, -6dB/octave LPF (§1 12,47 kHz
<—90dBm, IHF-A network
Input Impedance >15 kohms, balanced or unbalanced (ATT @max)
Sensitivity +4 dBm (1.23 Vrms) for nominal output (4 ohm load)
Voltage Gain 28.3 dB
Indicators
Signal: Green LED turns on when signal present at output
is at or above 2volts RMS (20 Hz -20 kHz),
Clipping: Red LED turns on when THD >1%.
Protection: Red LED turns on when protection or muting is on.
Pilot: Red LED turns on when power is on.
Protection Circuits
Muting: Output muted 6seconds (±2 sec.) after power is on,
DC sense: Output shut off if ±2V DC sensed at output.
Thermal: Output shut off if heat sink temp. >85 degrees C.
Current
Limiter: Output reduced if load <2 ohms.
Fan Circuit Fan is normally at low speed; when heat sink reaches 60 degrees
Centigrade, fan goes to high speed; then resets to low at 45°C.
Controls
Front: 32 step Input Attenuator; 0to —20 dB in 1dB steps,
-20 to -30 dB in 2dB steps, then -33, -37, -42, -50, -60
dB, and infinite attenuation.
Push On/Push Off POWER switch.
Power Requirements 105- 130 volts, 50 or 60 Hz, AC, 400 W(450 VA)
Weight 33 lbs (15 kg)
Dimensions Width: 18-7/8 inches (480 mm)
Height: 5-1/4 inches (132 mm)
Overall Depth: 16-3/4 inches (423 mm)
Depth Behind Front Panel: 15-1/8 inches (384 mm)
Accessory Rubber cap to discourage unauthorized or accidental changes in
setting of input attenuator (included).
