Dear Customer Unfortunately hifisonix will no longer be able to sell PCB’s using Paypal. If you want to buy hifisonix PCB’s, please contact me at bonsai(at)hifisonix.com to arrange payment. We are looking for alternative payment methods and hopefully will be…
The hifisonix kx2-Amplifier features outstanding distortion and noise performance, coupled to switchable class A, AAB or AB operation. It delivers 15W RMS class A into 8 ohms at less than 20 ppm distortion, and >80 watts RMS into 2 Ohms…
The X-Altra MC/MM RIAA preamp is a state of the art design that brings new levels of performance to vinyl EQ featuring best in class measured thermal noise on both MM and MC inputs, tight RIAA EQ conformance and >30…
Are you are looking for an experienced solid state audio designer? I am UK based but can undertake design projects on a contract basis for customers anywhere in the world. I specialize in power amplifiers, full feature pre-amplifiers (including low…
This simple ripple eater (aka MRE) can deliver up to 10A per supply rail (provided it is suitably heatsinked!) and will reduce mains related ripple on amplifier supply rails by up to 40 dB and as much as 50 dB…
This simple, low cost speaker protection board uses the ubiquitous UPC1237 from Unisonic, a Taiwan based semiconductor manufacturer. The circuit will work from 25V through to 75V and uses mosfets to switch the speaker load rather than relays which are…
Here is a low noise general purpose linear power supply that can be used to power the HPA-1 Headphone amplifier or any other low noise small signal application. The Hifisonix Standard PSU features low noise, up to 400mA per rail…
The HPA-1 is a compact high performance class A headphone amplifier that will deliver up to 1.75W into a 32 Ohm pair of headphones. The amplifier features ultra-low distortion, very wide bandwidth and class A operation up to 13 V…
