Parasound JC1+ Mono Power Amplifiers - Pair

Home > Products > Amplifier, Preamplifier - Solid State >New Arrivals >

Parasound JC1+ Mono Power Amplifiers - Pair

Parasound JC1+ Mono Power Amplifiers - Pair

$16,990.00

Loading...

Parasound JC1+ Mono Power Amplifiers - Pair

$16,990.00

Loading...
  • Description

     

    MY TAKE: For more than twenty years Parasound has been a name synonymous with unequaled value. Their electronics are respected for both performance and reliability and compete with significantly more expensive products. Modestly priced, previous offerings have changed the common perception about the level of performance that can be achieved at the price point. With the introduction of the Halo line, Parasound looks to bring the same level of value and performance to a more upscale market.

    For a number of years, the legendary John Curl has worked with Parasound as a consultant. His input has greatly influenced their products and is one of the reasons for the praise they’ve received from the audiophile community. Several seasons ago Parasound again enlisted the services of Mr. Curl and his team, CTC Builders, to design the highest-quality power amplifier ever made. The result is the JC 1+, manufactured exclusively by Parasound.

    The JC 1+ is among the most transparent, dynamic, and sonically neutral solid-state amplifiers available. Its design sophistication, quality of parts, and superb construction make the JC 1 and exceptional value.
    - Galen Carol


    REVIEWS:
     

    Positive Feedback: "The JC 1+ is a stirring achievement, and not just "for the price," that simply demands your consideration.

    "I've not heard any other monoblock entrant at or even close to this price that is able to recreate so many aspects of music with a more authentic voice. These amps are magnificent performers in nearly every regard. Honestly, I cannot think of a pair of monoblocks that offer a view anywhere near this close to the top of the heap for anywhere near their asking price. I can tell you that if I were shopping for a pair of monoblocks under $25,000, the Parasound Halo JC 1+ would be my first choice. Go give these new over-achievers a listen and be prepared to be bowled over by what you will hear. Most enthusiastically recommended." - Greg Weaver
    Read Full Review

     

    Stereophile: "With JC 1+ amplifiers, the feeling of listening to a Steinway D in a real space was very satisfying. High frequencies were smooth and clean, more like what I experience from a good tube amplifier. Dynamics were extraordinary. Low-frequency power and delicacy! The improvement in its sound quality and the recent explosion of the prices of high-end, high-power amplifiers keep the JC 1+ competitive. This is a superb-sounding amplifier that will get the best from every loudspeaker with which it is partnered. Well done, Mr. Curl."

    "The original JC 1 amplifiers were superb amplifiers. Five years in the making, the JC1+ is a complete redesign by John Curl, the JC1+. This is a remarkable amplifier!" - John Atkinson


    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 the 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 jack


    All Features:

     

    • 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 the input stage
    • The 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
    • 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 the 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 the power line
    • 6 massive 33,000 uF Nichicon Gold Tune filter capacitors for the 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 amperes, 230V, 60 MHz bipolar output transistors
    • 2.1 kVA shielded toroid power transformer with premium H18 grade core
    • Independent power supplies for the 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


    Specifications:
     

    Power Output
    450 x1 watts @ 8 Ω
    850 x1 watts @ 4 Ω
    1300 x1 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
    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
    2 Hz - 120 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

    Damping Factor
    > 1200 at 20 Hz

    Input Impedance
    Unbalanced: 50 kΩ
    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 28.28 V Output into 8 Ω
    Unbalanced: 1 V
    Balanced: 1 V 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
    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)

    Shipping Carton Dimensions
    Width: 29-1/2" (750 mm)
    Depth: 27-1/2" (700 mm)
    Height: 15-3/4" (400 mm)

    Net Weight
    83 lb. (37.6 kg)

    Shipping Weight
    107 lb. (48.5 kg)

    Power Requirement
    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

Product Ratings

Average Rating
No rating found.

Choose How Many Stars (5 Being the best)

Parasound JC1+ Mono Power Amplifiers - Pair

$16,990.00

Loading...

Description

 

MY TAKE: For more than twenty years Parasound has been a name synonymous with unequaled value. Their electronics are respected for both performance and reliability and compete with significantly more expensive products. Modestly priced, previous offerings have changed the common perception about the level of performance that can be achieved at the price point. With the introduction of the Halo line, Parasound looks to bring the same level of value and performance to a more upscale market.

For a number of years, the legendary John Curl has worked with Parasound as a consultant. His input has greatly influenced their products and is one of the reasons for the praise they’ve received from the audiophile community. Several seasons ago Parasound again enlisted the services of Mr. Curl and his team, CTC Builders, to design the highest-quality power amplifier ever made. The result is the JC 1+, manufactured exclusively by Parasound.

The JC 1+ is among the most transparent, dynamic, and sonically neutral solid-state amplifiers available. Its design sophistication, quality of parts, and superb construction make the JC 1 and exceptional value.
- Galen Carol


REVIEWS:
 

Positive Feedback: "The JC 1+ is a stirring achievement, and not just "for the price," that simply demands your consideration.

"I've not heard any other monoblock entrant at or even close to this price that is able to recreate so many aspects of music with a more authentic voice. These amps are magnificent performers in nearly every regard. Honestly, I cannot think of a pair of monoblocks that offer a view anywhere near this close to the top of the heap for anywhere near their asking price. I can tell you that if I were shopping for a pair of monoblocks under $25,000, the Parasound Halo JC 1+ would be my first choice. Go give these new over-achievers a listen and be prepared to be bowled over by what you will hear. Most enthusiastically recommended." - Greg Weaver
Read Full Review

 

Stereophile: "With JC 1+ amplifiers, the feeling of listening to a Steinway D in a real space was very satisfying. High frequencies were smooth and clean, more like what I experience from a good tube amplifier. Dynamics were extraordinary. Low-frequency power and delicacy! The improvement in its sound quality and the recent explosion of the prices of high-end, high-power amplifiers keep the JC 1+ competitive. This is a superb-sounding amplifier that will get the best from every loudspeaker with which it is partnered. Well done, Mr. Curl."

"The original JC 1 amplifiers were superb amplifiers. Five years in the making, the JC1+ is a complete redesign by John Curl, the JC1+. This is a remarkable amplifier!" - John Atkinson


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 the 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 jack


All Features:

 

  • 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 the input stage
  • The 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
  • 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 the 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 the power line
  • 6 massive 33,000 uF Nichicon Gold Tune filter capacitors for the 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 amperes, 230V, 60 MHz bipolar output transistors
  • 2.1 kVA shielded toroid power transformer with premium H18 grade core
  • Independent power supplies for the 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


Specifications:
 

Power Output
450 x1 watts @ 8 Ω
850 x1 watts @ 4 Ω
1300 x1 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
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
2 Hz - 120 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

Damping Factor
> 1200 at 20 Hz

Input Impedance
Unbalanced: 50 kΩ
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 28.28 V Output into 8 Ω
Unbalanced: 1 V
Balanced: 1 V 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
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)

Shipping Carton Dimensions
Width: 29-1/2" (750 mm)
Depth: 27-1/2" (700 mm)
Height: 15-3/4" (400 mm)

Net Weight
83 lb. (37.6 kg)

Shipping Weight
107 lb. (48.5 kg)

Power Requirement
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