Sep 5, 2014 · Jean Hiraga's deceptively simple and pure circuit topology once again shines through. The sound seems effortless and gives the impression of a much higher power amplifier yet still being able to produce all the low level details, the sound which class-A …

May 6, 2016 · This is a kit of class A amplifier with ultra-fi sonic quality. The design is with reference to the legendary design by Jean Hiraga. The amplifier is called "Super 30W class A" which implies it can gives 30W of power with operation in class A !

Apr 16, 2017 · Even Hiraga, who designed the Class A over 30 years ago, didn't spec. that much. He used 6 x 60,000 uF, which might be even be considered excessive today. You should look over some of the Pass amp PS schematics, which will give you a good framework in terms of capacitance size, filtering and wiring.

Mar 17, 2018 · Hiraga 30W Amp – Rev C. Hiraga 30W PDF. How to setup bias on Hiraga. Method 1. f) measure the voltage across the 1k resistors, if it isn’t equal on both sides adjust from the “180/240” resistors values to have the same voltage across the 1k on both sides.. The voltage should be between 1,06v and 1,5v.

With good heat dissipation, this amplifier can deliver 30W(+/-24V DC) of pure class A amplification. Features : This is our updated and improved version. The low level section is constant current loaded, and fed by good-sounding Kubota regulator.

Jul 19, 2004 · The amplifier is a very important link in the high fidelity chain and it must be of "low distortion" and "broad bandwidth", something that many audiophiles know. The essence is not that it is class A or B, with simple or complex circuitry, or containing very special or modern components, but that it is quite simply faithful.

This amplifier with its simple circuit is easy to adjust. It can evolve into a more powerful amplifier without major modifications. It presents, moreover, a very interesting quality-price ratio.

Hiraga 8w A class amplifier Do It Yourself Kit. This kit have everything what you need to make your own A class 8W amplifier. The original Hiraga Amp transistor are replaced with 2SC1845+2SA992 and on output MJL21194G+MJL21193G which is the best replacement for …

Mar 15, 2017 · initially i was interested in building valve amps but looking at complexity and those alien bulbs i decided to stick to solid state amps. at high level, amplifiers per se are simple. dc power supply + amp pcb + heat sinks. simple! while looking for simple Class A amp build i came across Jean Hiraga's amp schema. it is based on an article ...

Apr 6, 2018 · There is no need to explicitly mention how the amp sounds as JH design is well known for the warm sound and butter smooth mids. It has a real nice control on the low notes and has plenty of power to drive most of the speaker units, we had paired it with Tannoys towers and the result was mesmerizing.