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Parasound Releases New John Curl Designed Amplifier

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  • Parasound Releases New John Curl Designed Amplifier

    For Immediate Release:
    Parasound Debuts Flagship Halo JC 1+ 450-Watt Monoblock Power Amplifier


    Five years in the making, John Curl’s innovations make the new Parasound Halo JC 1+ the finest amplifier in Parasound’s 38 year history.

    Parasound Halo JC 1+ Monoblock Amplifier in silver or black. Click here for additional photos specs on web.
    SAN FRANCISCO (1/16/20) -- For nearly two decades, the Parasound Halo JC 1 monoblock power amplifier, designed by the legendary John Curl, wasParasound's flagship product, and the aspirational amplifier for thousands of audiophiles world-wide.

    A five-year effort by Curl and Parasound, and sweeping circuit improvements, have resulted in the amazing Parasound Halo JC 1+ monoblock amplifier. With 450 watts into 8 ohms, 850 watts into 4 ohms, 1300 watts into 2 ohms, and a peak current of 180 amperes, the JC 1+ excels even with speakers that can dip to 1 ohm. It operates in pure Class A up to 25 Watts and Class AB to full power, reflecting Curl's attention to detail and sound quality.

    "In early 2003, the JC 1 was an immediate success," said Richard Schram, Parasound's president. "We couldn’t imagine how to improve it. I was surprised and excited when John called me in early 2014 to discuss his ideas for a new amplifier that would significantly outperform the JC 1. During 2015 and 2016 we built numerous prototypes to confirm Curl’s theories, and the sonic improvements he’d predicted. The results were outstanding. We decided to create a new amplifier to honor the JC 1’s legendary reputation. The JC 1+ is a technological masterpiece, raising the bar for amplifier performance and value for years to come.”

    At 83 pounds, the new JC 1+ is 30 percent heavier than the JC 1. Its new power transformer has 20 percent higher capacity, while additional Nichicon power-supply filter capacitors increase from 132,000 uF to 198,000 uF. The new amp boasts 24 Sanken 15A/230V output transistors compared to 18 — a 33 percent peak current increase, for music that truly soars.

    The Parasound Halo JC 1+ is remarkably quiet and is thefirst commercially built product to employ active high-frequency noise filtering with Bybee Music Rails™, eliminating input stage noise that compromises sound quality. Curl’s newly-designed driver stage employs a cascode circuit with greater open-loop bandwidth and increased linearity. In another first for the JC 1+, the input and driver stages reside on FR-408 printed circuit board material. Until now FR408 was used in super-computer and aerospace applications. The input-stage power supply is totally independent from the main power supply. Its R-core transformer isolates sensitive circuitry from high-frequency power line noise. This input stage power supply employs quiet high speed/soft recovery diodes and 22,400 uF filter capacitance, to deliver +/- 112 VDC rail voltage, virtually eliminating distortion. Premium Wilson Audio REL capacitors use a proprietary design, which resists micro vibrations that typically degrade the sound quality of other caps. The addition of an XLR Loop Out as well as a 12V-trigger/delayed-turn-on improve the connectivity and utility when multiple JC 1+s are used in bi, tri, and quad amp configurations.

    Parasound’s Halo JC 1+ has a fast-start bias circuit that enables it to sound its best within minutes after turn-on. A bias level selector switch enables cooler operation, with virtually no performance compromise. To optimize performance with high gain preamps and high sensitivity speakers, a two-position toggle switch selects 23dB or 29dB gain.

    Premium Neutrik balanced locking XLR connectors, and Vampire unbalanced RCA output connectors facilitate bi-amping. Rugged Parasound-designed CHK Infinium speaker terminals accept spade lugs up to 16mm wide, banana plugs, and 5-AWG bare speaker wire. The front panel design not only matches the updated Halo family appearance, but also complements the inner beauty of the JC1+.

    The Parasound Halo JC 1+ power amplifier, in black or silver finish, will be available from authorized Parasound dealers in Q1, 2020, with a USA retail price of $8,495 each.

    Founded in 1981, Parasound Products, Inc., is a privately-owned U.S. company that specializes in providing affordable audio components to the critical listener. The company's ever-improving line of audio products has garnered a reputation for performance, value, and reliability. The highest quality standards are assured by Parasound's close relationships with their Taiwan manufacturers that date back to 1982.

    For more information, visit www.parasound.com or call 415-397-7100.
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Magico S5 Mk.2 speakers with SPod feet
    -cj 40th Anniversary ART300 monoblock amplifiers
    -cj GAT preamplifier Series 2 preamplifier
    -Doshi V3.0 phonostage
    -VPI Vanquish direct-drive turntable
    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
    -Lyra Atlas SL, Fuuga, vdh Colibri Master Signature, MOFI Master Tracker, Sumiko Songbird cartridges
    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
    -Assorted cables including Transparent XL Gen. 5, Allnic cables, Skogrand, Viero, Kubala-Sosna, MG Audio, Audience Au24SX, Genesis Advanced Technologies Power Cords
    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

  • #2
    I’m sure those will sound great...but I’m gonna say it...I don’t much care for Parasound’s industrial design, and while it can be overlooked in their value-priced gear, when we are talking $17k/pair monoblocks...
    TAPE: Studer A807, A810; Revox B77 MkII; Tascam BR-20; Technics RS-1700; Pioneer RT-707, RT-909
    VINYL: Pioneer PL-50LII/Benz LP-S MR/ModWright PH 9.0; Denon DP59-L/Dynavector 20xH
    DIGITAL: Bryston SP-3, Marantz NA6006/Pioneer N-50, Schiit Bifrost
    SPEAKERS: B&W Nautilus 800, Pioneer DSS-9, Velodyne FSR-15
    AMPS: Cary SLP-05/Sunfire Signature 600, Pioneer SX-1980

    Comment


    • mep
      mep commented
      Editing a comment
      If those new amps from Parasound had some other names on them, they would easily cost over $100k a pair.

  • #3
    I did not know John Curl was still designing he is a very talented guy . Is anyone reviewing these new mono blocks .

    Comment


    • JCOConnell
      JCOConnell commented
      Editing a comment
      I think he has been contracting/consulting/designing with parasound for the last 25 yrs.

  • #4
    I had the first JC-1's and they were excellent. I'll bet these are quite good.
    Speakers: Horning Eufrodite Ellipse III on Stillpoints Ultra 5S feet
    Speakers: REL Acoustics G1 Mark II Subs (pair)
    Amplifier: New Audio Frontiers Ultimate 211 Special Edition Monoblocks
    Preamp: TW Acustic RPA-100 Line Stage
    Phono Stage: TW Acustic RPS-100
    Turntable - TW Acustic Raven AC w/ Black Knight Anniversary Upgrades
    Tonearm: Kuzma 4-Point 14" with Air Tight Opus-1 Cartridge
    Tonearm: TW 10.5" with Miyajima Zero Mono
    Vinyl Care: Audio Desk Pro Ultrasonic & VPI 16.5 RCM
    CD/SACD: Playback Designs MP-5 to Bricasti M1 DAC
    Tape: Tascam 42B-NB (Refurb by Soren Wittrup)
    Tape Stage: Doshi V.3
    Power Conditioner: (2) Silver Circle Audio TCHAIK 6
    Wire: Custom Furutech PC's & IC's + Inakustik LS-4004 Air Speaker Cables
    Tweaks: Stillpoints Aperture II Panels & Stillpoints Ultra 5S's & SS's sprinkled about - SRA Ohio Class and Symposium Super Plus Platforms

    Comment


    • #5
      As above, I have the the JC-1 amps as well and they easily compare to my Pass Labs.... though, I'm sure folks would rather have the "Pass" name attached if they were plunking down $17k.. !!!

      Comment


      • #6
        I would make the case that John Curl is one of the most talented analog audio engineers in the world and is respected around the world. His fingerprints are on lots of gear. He helped put the original Mark Levinson company on the map.
        SP-10 MKII table with custom power supply designed and built by Peter Noerbaek with an SME 3012R with Dyna XV-1S cartridge, VPI Avenger table with rim drive and JMW -12-3D arrm with Lyra Etna SL cartridge, ARC Ref 3 phono stage, Otari MX-55 tape deck, Ampex 350 repros, Roon Nucleus Plus server, PS Audio DSJ DAC, ARC Ref 6 pre, ARC Ref 75 amp, JBL 4345 speakers with a pair of Def Tech Ref subs.

        Comment


        • Rob
          Rob commented
          Editing a comment
          I never heard one myself but supposedly Curl's coup de gras statement piece is the "blowtorch" preamplifier which mates perfectly with his vendetta phono stage, its unobtainium but for a lucky few. rumor has it their are just 40 samples in the wild.

      • #7
        John has also been doing work for Art Ferris of Audible Illusions. Not sure if the solid-state preamplifier is a Curl design but the forthcoming phono is. Bad news is the phono has been shown for a couple of years now but it’s never been shipped. Not sure what is going on.
        Myles B. Astor, PhD, Administrator
        Senior Editor, Positive-Feedback.com
        ________________________________________

        -Magico S5 Mk.2 speakers with SPod feet
        -cj 40th Anniversary ART300 monoblock amplifiers
        -cj GAT preamplifier Series 2 preamplifier
        -Doshi V3.0 phonostage
        -VPI Vanquish direct-drive turntable
        -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
        -Lyra Atlas SL, Fuuga, vdh Colibri Master Signature, MOFI Master Tracker, Sumiko Songbird cartridges
        -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
        -Assorted cables including Transparent XL Gen. 5, Allnic cables, Skogrand, Viero, Kubala-Sosna, MG Audio, Audience Au24SX, Genesis Advanced Technologies Power Cords
        -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

        Comment

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