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Parasound Halo JC 1+ Black Mono Power Amplifier - JC1PLUSB
Parasound JC1PLUSB Halo JC 1+ Black Mono Power Amplifier
Features
Changes from the JC 1 to JC 1+
- 400 → 450 Watts @ 8Ω
- 800 → 850 Watts @ 4Ω
- 1200 → 1300 Watts @ 2Ω
- Filter capacitance: 132,000 → 198,000 uF
- Transformer capacity: 1.9 → 2.1 kVA
- Output transistors: 18 → 24 Sanken 60Mz devices
- Peak current: 135 → 180 amps
- Weight: 64 → 83 lbs net
- Bybee Music Rails™ active high frequency noise filters
- John Curl driver stage employs a new cascode circuit design
- FR-408 input circuit board material improves HF signal integrity
- Gain switch to select 29 dB or 23 dB of gain
- R-core power transformer for input stage
- Input circuit board is shielded
- Double thickness copper on output/power supply circuit boards
- Gold-plated internal audio signal path connectors
- Custom CHK Infinium speaker binding posts
- Looping Neutrik XLR output for easier bi-amping
- Front panel power indicator LED
- Updated auto turn on circuits with 3.5mm 12V trigger jacks
All Features
- Circuitry designed by legendary John Curl
- Ultra-high bias Class A/AB operation
- 25 watts of pure Class A power
- Stable with speaker impedance dips below 1Ω
- Bybee Music Rails™ - active high frequency filters for input stage
- New 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
- R-core transformer for input stage suppresses noise on power line
- 6 massive 33,000 uF Nichicon Gold Tune filter capacitors for output stage
- 22,400 uF input stage power supply filter capacitors, independent of the main power supply
- Dual 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
- 24 beta-matched 15 ampere, 230V, 60 MHz bipolar output transistors
- 2.1 kVA shielded toroid power transformer with premium H18 grade core
- Independent power supplies for input stage, driver stage & output 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
- 4 rack space chassis with rear carry handles
- Rack mount hardware is included
- Available in silver or black
California customers:
General
Total Harmonic Distortion (THD)
< 0.15 % at full power, < 0.02 % at typical listening levels
Power Requirements
Idle (bias set to low): 145 Watts, Idle (bias set to high): 275 Watts, Typical Listening levels: 400 Watts, Maximum: 1500 Watts
Standby Power Consumption
<1W
Frequency Response
2 Hz - 120 kHz, +0/-2 dB, 20 Hz - 20 kHz, +0/-0.25 dB
Intermodulation Distortion (IM)
<0.03%
Damping Factor
> 1200 at 20 Hz
Input Impedance
Unbalanced: 50 kΩ, Balanced: 100 kΩ, (50 kΩ per leg)
Current Capacity
180 amps peak
Slew Rate
> 130 volts per microsecond
Total Gain
29 dB (Gain switch set to normal), 23 dB (Gain switch set to low)
Input Sensitivity for 28.28 V Output into 8 Ohms (Unbalanced)
1 V
Input Sensitivity for 28.28 V Output into 8 Ohms (Balanced)
1 V per leg
XLR Pin Protection
1 = Ground (Shield), 2 = Positive, 3 = Negative (Return)
DC Trigger Requirements
+9 Vdc to +12 Vdc, 5 mA
Audio Trigger Requirements
2.5 mV - 10 mV
Transient IM Distortion
Not measurable
Power Measurements Are With 120 VAC
0.15% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)
Class A Power Output
25 Watts, bias switch set to high, 10 Watts, bias switch set to low
Signal to Noise 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
Power Output
450 x1 watts @ 8 Ω, 850 x1 watts @ 4 Ω, 1300 x1 watts @ 2 Ω
Approximate Dimensions
Height (in)
7.75
Width (in)
17.63
Depth (in)
20
Height Without Feet (in)
7.13
Depth With Cables (in)
21.5
Approximate Weight
Unit Weight (lbs.)
83
Shipping Weight (lbs.)
107
Warranty Information
Parts Warranty
5 Years Limited
Labor Warranty
5 Years Limited
Brochure
Over 87 Years Of Experience
What Our Customers Say About Us
My experience with ABT was great! You were the only place that I contacted that had the range in stock. It was delivered a week before the expected date.
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- Saint Clair Shores, MI
May 15, 2023
Delivery was on time and installation was very professional!
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May 15, 2023
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- Chicago, IL
May 11, 2023
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May 16, 2023
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- Chicago, IL
May 11, 2023
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May 19, 2023
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May 16, 2023
Excellent very thorough and extremely polite gentleman to install my new washer!!
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- Niles, IL
May 16, 2023
The ABT Team, They came, delivered, setup & remove the old unit & box and were very Proffesional, Courteous & fast. I look forward to doing more business with ABT. Thank You...
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- Chicago, IL
May 11, 2023
