Parasound JCM250 Monoblock Power Amplifier (Each)
JCM250 – Compact Monoblock Amplifier, 1 x 250watt, 8 ohm (Black Finish Only)
The JCM250 is a high-performance monoblock amplifier designed for listeners who want serious power without excessive size. Whether you’re driving demanding full-range speakers or crafting a powerful home theater front-end, it delivers authority and finesse—even when the music gets intense. Designed by John Curl, the JCM250 runs high-bias Class A/AB with up to 8 W in pure Class A (High Bias; 4 W in Low Bias) and delivers 250 W into 8 Ω, 450 W into 4 Ω, and 800 W into 2 Ω with 100 A peak current. The circuit is direct-coupled (no capacitors in the audio path) with a JFET input stage and MOSFET driver stage, plus XLR/RCA inputs and loop-outs for effortless bi-amping. Integration is simple with 29 dB / 23 dB gain options, 12 V trigger or audio-sense auto-on, and a 2U chassis that’s easy to rack. Parasound also equips the input stage with Bybee Music Rails™ high-frequency filters. Circuitry designed by legendary John Curl, Ultra-high bias Class A/AB operation, Stable with speaker impedance dips below 1Ω, Bybee Music Rails™ - active high frequency filters for input stage, John Curl driver stage employs a cascode circuit for greater open loop bandwidth & superior linearity, Gain switch to select 29 dB or 23 dB gain for optimum compatibility with high gain preamps or extremely efficient speakers, CHK Infinium, custom 5-way speaker binding posts for easy bi-wiring, Neutrik locking XLR balanced input & loop output jacks, Vampire 24k gold-plated RCA input & loop output jacks, Direct-coupled signal path, no capacitors or inductors in the audio path, JFET input stage, MOSFET driver stage, 16 beta-matched 15 ampere, 230V, 60 MHz bipolar output transistors, Independent power supplies for input stage & driver stage, Full power is rated all the way down to 2Hz for unrestricted low-end bass, Harris hyper-fast soft-recovery bridge diode rectifiers, REL & Nichicon Muse capacitors, DC servo & relay protection circuits, AC turn-on inrush surge protection with relay bypass, Automatic turn-on by 12 V trigger or audio sensing, 2 rack space chassis with rear carry handles.
Specifications:
Frequency Response: 2 Hz - 110 kHz, +0/-2 dB, 20 Hz - 20 kHz, +0/-0.25 dB.
S/N Ratio: >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 Harmonic Distortion (THD): < 0.15 % at full power, < 0.02 % at typical listening levels.
IM Distortion: < 0.03 %. Input Impedance: Unbalanced: 50 kΩ, Balanced: 100 kΩ (50 kΩ per leg).
Total Gain: 29 dB (Gain switch set to normal), 23 dB (Gain switch set to low).
Dimensions: Width: 17.25" (437mm), Height without feet: 3.5” (89mm), Height with feet: 4.125" (105mm), Depth: 20" (508mm), Depth with Cables: 21.5” (546mm).
Net Weight: 42 lb.
Shipping Weight 50 lb.
