Category Archives: Upgrades

These articles are about upgrades to hi-fi equipment. The main focus here is on modifying and improving hi-fi electronics for better performance.

Rega Planar 3 Service & Ortofon 2M Blue Installation

I recently had the opportunity to work on an iconic Rega Planar 3 belt-drive deck. It reminded me of all that I like about these classic decks, and a couple of things I really don’t…

The Rega Planar 3 has deservedly won a place in the hearts and minds of many vinyl lovers over the years.… Read more “Rega Planar 3 Service & Ortofon 2M Blue Installation”

Musical Fidelity Tri-Vista 21 Tube DAC Modifications, Part 3 – ERO Goodness!

I recently finished another round of modifications to my Musical Fidelity Tri-Vista 21 Class A Tube DAC. In this post, I go into details about the changes and the MIL-spec vintage parts I’ve used!

Actually, I will do some more power supply modifications in 2018, more on that when it happens. This is part three, in an ongoing process to develop and evaluate the best performance mods for the wonderful Musical Fidelity Tri-Vista 21 DAC.… Read more “Musical Fidelity Tri-Vista 21 Tube DAC Modifications, Part 3 – ERO Goodness!”

Musical Fidelity X-Can V3 Headphone Amplifier Modifications

I recently modified a Musical Fidelity X-CAN V3 headphone amplifier. My goal was to see what sort of improvements I could make without spending too much cash.

The X-CAN V3 uses bipolar output devices, with a tube driver stage. The tube driver stage is a JAN (Joint Army/Navy) 6922 mil-spec dual-triode tube, per channel. These tubes run in class-A and give the voltage gain necessary to drive a pair of BD139/BD140 bipolar transistors.… Read more “Musical Fidelity X-Can V3 Headphone Amplifier Modifications”