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Description
Parasound Halo JC 1+ Jr. Mono Power Amplifier By John CurlJC1+ Extreme Power, Extraordinary Finesse The Parasound JC1+ delivers monoblock performance on a majestic scale450 W into 8 , over 1,300 W into 2 , and up to 25 W in pure Class A. Whether its the intimate tones of solo piano or the thunder of orchestral crescendos, the JC1+ delivers every detail with uncanny control, space, and realism. Built on John Curls decades long halo legacy, this amp raises the bar with rugged R core power supply design, system
JC1+ — Extreme Power, Extraordinary Finesse
The Parasound JC1+ delivers monoblock performance on a majestic scale—450 W into 8 Ω, over 1,300 W into 2 Ω, and up to 25 W in pure Class A. Whether it’s the intimate tones of solo piano or the thunder of orchestral crescendos, the JC1+ delivers every detail with uncanny control, space, and realism.
Built on John Curl’s decades-long halo legacy, this amp raises the bar with rugged R-core power supply design, system tuning switches, and precision-grade audio components. Its transparent performance and refined execution make it ideal for high-resolution systems, audiophile-level home theaters, and demanding speaker pairings alike.
Praised by listeners and reviewers:
- “It sounds like it’s not even trying—just clean, open power.”
- “The JC1+ brought out new life in my speakers—I didn’t know they had it in them.”
- “Holographic sound. The amp disappears and the music just fills the room.”
Awards & Recognition
- Stereophile – Recommended Component (2024)
- Secrets of Home Theater & High Fidelity – Best Monoblock Power Amplifier (2020)
- TONEaudio – Exceptional Value Award (2020)
Specifications:
Power Output: 450 x1 watts @ 8Ω, 850 x1 watts @ 4 Ω, 1300 x1 watts @ 2 Ω
Power measurements are with 120VAC: 0.15% THD, RMS continuous power,full audio band (20Hz - 20kHz)
Class A Power Output: 25 Watts bias switch set to high, 10 Watts bias switch set to low
Current Capacity: 180 amps, peak
Slew Rate: > 130 volts per microsecond
Frequency Response: 2Hz-120 kHz +0/-2 dB, 20Hz-20kHz, +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
Damping Factor: > 1200 at 20 Hz
Input Impedance: Unbalanced: 50 kΩm Balanced: 100 kΩ, (50 kΩ per leg)
S/N Ratio, inputs shorted
- >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
Total Gain: 29 dB (Gain switch set to normal), 23 dB (Gain switch set to low)
Input Sensitivity for 28.28V Output into 8Ω (Gain switch set to normal)
- Unbalanced: 1 V
- Balanced: 1 V per leg
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: 17-5⁄8" (448 mm)
- Height without feet: 7-1⁄8" (181 mm)
- Height with feet: 7-3/4" " (197 mm)
- Depth: 20" (508 mm)
- Depth with cables: 21-1⁄2" (546 mm)
Net Weight: 83 lb. (37.6 kg)
Shipping Weight: 107 lb. (45.4 kg)
Power Requirements
- Standby: <1 Watt
- Idle (bias set to low): 145 Watts
- Idle (bias set to high): 275 Watts
- Typical Listening levels: 400 Watts
- Maximum: 1500 Watts
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy