- September 2026 (3)
- August 2026 (18)
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MVista 3 – Cabinet and Screen mock-ups
MVista 3 preamplifier will be the combination of two major engineering sub-projects: The analogue electronics and mechanical design building on mVista 2 progressing to towards a full dual-mono, fully galvanically isolated architecture, with Raspberry-Pi…
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Pat Metheny Live Barbican 24th July 2026
I have been a fan of Pat Metheny since the early 90s. My son very thoughtfully gave me tickets to see him at the Barbican Centre in London. From the outset, it was clear…
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Eigentakt IET400A
Bruno Putzey the designer of the Purifi IET400A power amplifer module has spent his career designing and perfecting Class-D amplifers. From his pioneering days at Phillips, then to Hypex where enormous volumes were shipped.…
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SRC Amp 1
Starting the amp build journey My journey of building high-performance amplifiers started in 2015 with an AudioSector LM3875 kit. This comprised a couple of simple PCBs and a bag of components. The “gainclone” design…
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mVista 2 preamp
Background In 2017 I made the first version of the mVista preamplifier. This was an ambitious project which met the functional goals, however the noise and cross talk performance left much to be desired.…
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mVista 3 ultra-high performance preamplifier
Design Goals: ultra-low noise high performance user interface with remote control music visualisation, VU meters, spectrum displays, all configurable DIY capable – 4 layer PCB build, front panel machining build cost <£500 Specification 6…
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Feedback on this site
This blog is new and builds off a site I created called bear audio. This site has been created to bring everything up to date and provide a platform for the multiple build projects…
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Bowers & Wilkins 804d4
In May 2024 I was lucky enough to get a great deal on an ex-demo pair of Bowers and Wilkins 804 d4s. I first heard them at the Bristol HiFi show with their big…
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Lingus
The track Lingus off Snarky Puppy’s album We Like it Here has, IMHO, one of the most incredible keyboard solo’s. Played by Cory Henry, the dexterity, speed and musicallity is like nothing else. On…
