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Tag: HiFi

Custom DDC: 2 Bluetooth & auto switching

Posted by Johannes Johansson | Published on 19/04/2026

Custom DDC expands with Bluetooth and automatic switching, aiming for cleaner hi-fi streaming without manual input juggling.

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Posted by Johannes Johansson | Published on 28/02/2026

A DIY digital-to-digital converter build with USB input, improved clocks, and outputs including I2S over HDMI, S/PDIF, and AES.

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Posted by Johannes Johansson | Published on 11/03/2025

A high-end Sony Bluetooth headset gets new soft parts, glue where needed, and a more thorough repair than simple replacement alone.

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Posted by Johannes Johansson | Published on 26/06/2015

A straightforward set of component upgrades that can noticeably improve older Naim power amps and similar hi-fi amplifiers.

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Guitar Pedals: 3 Fixing a Temu digital delay

A cheap Temu digital delay arrived broken, so this post follows the attempt to diagnose and fix it anyway.
Dumble Overdrive Special: 3 Mods

Dumble Overdrive Special: 3 Mods covers the effects loop, switching options, heaters, and other practical refinements beyond the base clone.
Custom DDC: 1 Digital to Digital Converter; USB to I2S over HDMI; S/PDIF; AES

A DIY digital-to-digital converter build with USB input, improved clocks, and outputs including I2S over HDMI, S/PDIF, and AES.
Guitar Pedals: 2 Splitter/Buffer

A compact splitter/buffer build for running two guitar heads at once, with practical fixes to the original circuit values.
Dumble Overdrive Special: 1 Head & Circuit

An introduction to the Dumble Overdrive Special build, why the original amplifiers are legendary, and what makes the project worth chasing.