Specifications - Parasound JCM 250 Owner's Manual

Specifications

Specifications and features subject to change or improvement without notice.
Power Output
250 watts@8 Ω
4 50 watts@4 Ω
8 00 watts @2 Ω
Power measurements are with 120 VAC:
0.15% THD, RMS continuous power,
full audio band (20 Hz - 20 kHz)
Class A Power Output
8 Watts, bias set to high
4 Watts, bias set to low
Current Capacity
100 amps, peak
Slew Rate
> 130 volts per microsecond
Frequency Response
2 Hz - 110 kHz, +0/-2 dB
20 Hz - 20 kHz, +0/-0.25 dB
Total Harmonic Distortion (THD)
< 0.15 % at full power
< 0.02 % at typical listening levels
IM Distortion
< 0.03 %
TIM
Unmeasurable
Input Impedance
Unbalanced: 50 kΩ
Balanced: 100 kΩ, (50 kΩ per leg)
S/N Ratio, inputs shorted
>120 dB, IHF A-weighted, bias set to Low
>118 dB, IHF A-weighted, bias set to High
>110 dB, Unweighted, bias set to Low
>108 dB, Unweighted, bias set to High
Total Gain
29 dB (Gain switch set to normal)
23 dB (Gain switch set to low)
Input Sensitivity for 28.28 V into 8Ω
Unbalanced: 1V
Balanced: 1V per leg
(Gain switch set to normal)
DC Trigger Requirements
+9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirement
2.5 mV - 10 mV
XLR Pin Identification
1 = Ground (Shield)
2 = Positive
3 = Negative (Return)
Dimensions
Width: 17.25" (437 mm)
Height without feet: 3.5" (89 mm), 2U
Height with feet: 4.125" (105 mm)
Depth: 20" (508 mm)
Depth with cables: 21.5" (546 mm)
Net Weight
42 lbs (19.1 kg)
Shipping Weight
50 lbs (22.6 kg)
Power Requirement
Standby:<1 Watt
Idle (bias set to low): 125 Watts
Idle (bias set to high): 240 Watts
Typical Listening levels: 300 Watts
Maximum: 800 Watts
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