We are very proud of this latest achievement of Parasound engineering in concert with legendary audio equipment designer John Curl. Our reason for developing the JC 5 Our John Curl-designed Halo JC 1 mono block is acknowledged as the ultimate benchmark for amplifier performance and value.
Pin On Circuit
As an independent consultant Curl has worked dozens of projects both in pro audio and home audio.
. SAN FRANCISCO 11620 -- For nearly two decades the Parasound Halo JC 1 monoblock power amplifier designed by the legendary John Curl wasParasounds flagship product and the aspirational amplifier for thousands of audiophiles world-wide. Im fine-tuning the front end at present as the open loop bandwidth doesnt suit me. Circuitry designed by legendary John Curl.
The article describes the design and the performance of a high-quality DC-coupled all-JFET amplifier. Tyson Rabani and Award Winning Showroom hosts sound engineer John Curl for an evening of questions and answers and in this video John talks about problems w. He did pioneering work in the development of the four quadrant symmetry balanced bridge amplifier pure class A output stages fully regulated power supplies for power amplification com-plementary differential line amplifiers and complementary parallel.
On July 17th 2014 at Century Stereo in San Jose California the Founder of Parasound and a legendary amplifier designer shared their tremendous experience le. A five-year effort by Curl and Parasound and sweeping circuit improvements have resulted in the. John Curlﾕs achievements in the design of solid state amplifiers have been seminal.
The circuit was inspired by John Curl and Erno Borbely designs and was built with readily available junction-gate field-effect transistor JFETs from Linear Systems. Making master recorders studio boards microphone preamps power amplifiers and many other products. Yes I know Im in the minority on that.
In 1989 John Curl was introduced to Parasounds founder Richard Schram and since then Curl has designed all of Parasounds high-power amplifiers. Jerry internet streaming various bit and bobs of electronics and cables MBL116f speakers. Parasound design consultant John Curl is a legend among audiophiles and electronic engineers.
This pre-preamplifier was designed for SOTA by the legendary audio engineer John Curl. Parasounds amplifiers are well known and established products which is of no surprise considering the legendary amplifier designer John Curl has been involved in the companys amplifier product development. March 24 2021 1310.
In any event this is the circuit used in. An 18 month keeper a long time for me. The actual Lin amp is an output buffer driven by a VASTIS with an overall inverting voltage gain.
The addition of the input diff-amp was by Thompson at least for audio. In 1989 John Curl was introduced to Parasounds founder Richard Schram and since then Curl has designed all of Parasounds high-power amplifiers and consulted on the design of the low-level circuits of many of its other components. Instruments and Amps 2 3.
I am not about John Curls undisputed excellency of design i mean it is not a good idea to clone these with off the shelf parts. This is a head amplifier used to step up the output of a low output Moving Coil cartridge. This pioneer of quality electronics brings high-end features and exacting standards to the reasonably priced Parasound line.
John Curl Profile. John Curl can design anything from sound boards to phono stages Concert sound systems to preamps. The circuitry of the A 23 was engineered by legendary audio designer John Curl.
The Two was a 60-watt mono tube amplifier that came out in the days of high-fidelity as opposed to high-end sound. In association with our old friend designer John Curl we have made considerable improvement in our new amplifier. Curl earned the respect of everyone at.
Boards microphone preamps power amplifiers and many other products. Among his designs are the Parasound HCA-1500A amplifier the Multi-channel Amplifiers the HCA-1205A. The input stage is the complementary JFET differential pair the.
The input stage is the the complementary JFET differential pair the second. Former rock engineer designs fab high-end audio gear. This article describes the design and performance of a high-quality DC-coupled all-JFET amplifier.
John Curl once worked his magic on the Dead and on Jefferson Airplane. Now hes finished work on an all-new Halo Series JC 2 stereo preamplifier. Its around 80kHz but Id like to at least get over 100kHz.
I regard 200-250kHz as the beginning of acceptable bandwidth even if I have to use feedback to get there. You need a tube or other phono stage for RIAA EQ after the head amp. Very fond memories of my JC-designed Parasaound Halo A21 amp.
The complementary JFET input stage and MOSFET drive stage. The 25-watt ML2 monoblock Levinsons first power amp was designed for wide-swing-impedance speakers such as the legendary HQD system Hartley stacked Quads Decca Ribbon. The circuit was inspired by John Curl and Erno Borbely designs and was built with readily available JFETs from Linear Integrated Systems Linear Systems.
In our opinion two piece preamps are the way to go. It is very quiet and adds gain only to a normal phono stage typical of units made 20 years ago or so.
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