Parasound Halo Series JC 1+ Mono Power Amplifier | 850W x 1 Channel | Black

The Parasound Halo JC 1+ is a monaural power amplifier developed with input from John Curl and intended for reference-grade stereo systems where a dedicated amplifier per channel is preferred. Housed in a substantial 5U chassis measuring 17.6 by 7.1 by 20 inches and weighing 83 lbs net, it outputs 450 watts into 8 ohms, 800 watts into 4 ohms, and 1,300 watts into 2 ohms. Pairs of JC 1+ units are typically deployed as monoblocks flanking a loudspeaker array.

The amplifier supplies 180 amps peak current and holds distortion to 0.05 percent THD. Frequency response spans from 2 Hz to 120 kHz with a 3 dB limit, and remains within 0.25 dB across the full audio band. Signal-to-noise ratio exceeds 122 dB IHF A-weighted with bias set to the low position. A selectable gain switch provides 29 dB or 23 dB of gain, and both balanced and unbalanced inputs are accepted. A user-adjustable bias control allows operation in higher or lower idle current modes.

Key Features

• 450W into 8 ohms, 800W into 4 ohms, 1,300W into 2 ohms
• 180 amps peak current
• THD 0.05%
• SNR greater than 122 dB IHF A-weighted (bias low)
• Frequency response 2 Hz - 120 kHz, +0/-2 dB
• Selectable gain: 29 dB or 23 dB
• Balanced XLR and unbalanced inputs, net weight 83 lbs

Specifications

• Channels: 1-Channel
• Watts Per Channel: 501-1000W
• Power Output @ 8 ohm: 450W x 1, 8 Ω
• Power Output @ 4 ohm: 800W x 1, 4 Ω
• Power Output Bridged @ 8 ohm: 1300W x 1, 2 Ω
• Power Consumption: Standby: <1W Idle (bias set to low): 145W Idle (bias set to high): 275W Typical Listening levels: 400W Maximum: 1500W
• Current Rating: 180 amps peak
• Total Harmonic Distortion (THD): 0.05%
• Power RMS: Yes
• Frequency Response: 2 Hz - 120 kHz, +0/-2 dB 20 Hz - 20 kHz, +0/-0.25 Db
• Audio Crosstalk: > 87 dB at 1 kHz > 72 dB at 20 kHz
• Impedance Input: Unbalanced: 50 kΩ Balanced: 100 kΩ, (50 kΩ per leg)
• Audio Gain: 29 dB (Gain switch set to normal) 23 dB (Gain switch set to low)
• Sensitivity Input: Unbalanced: 1 V Balanced: 1 V per leg (Gain switch set to normal)
• Signal to Noise Ratio: >122 dB, IHF A-weighted, bias set to Low >120 dB, IHF A-weighted, bias set to High >113 dB, Unweighted, bias set to Low >111 dB, Unweighted, bias set to High
• Amplifier Requirements: Audio Trigger: 2.5 mV - 10 mV
• External Trigger Voltage: +9 Vdc to +12 Vdc, 5 mA
• Connectors: XLR Pin Identification 1 = Ground (Shield) 2 = Positive 3 = Negative (Return)
• Dimensions (W x H x D): 17.6" x 7.1" x 20" (448 x 181 x 508mm) (without feet)17.6" x 7.75" x 20" (448 x 197 x 508mm) (with feet)Depth with cables: 21.5" (546mm)
• Weight: Net Weight: 83 lbs (37.6 kg) Shipping Weight: 107 lbs (48.5 kg)