Category Archives: Upgrades

Articles about upgrades to hi-fi equipment and where the main focus is on modifying and improving hi-fi electronics.

Musical Fidelity M1 DAC Review & Upgrades

The Musical Fidelity M1 DAC shares some of the same DNA as the awesome Tri-Vista 21. Come along as I upgrade this DAC to find out just how good she can sound.

Think of the Musical Fidelity M1 DAC as the little DAC that could. For its very modest asking price when released, you got a lotta DAC for the money.… Read more

Vintage Fidelity Research FR-2 + Yamaha GT-2000 Vinyl Setup

My good friend wanted to give his Yamaha GT-2000 vinyl setup a shot in the arm. I suggested a few improvements, my aim: to improve cartridge/headshell/tonearm synergy. We achieved this by installing a gorgeous, vintage Fidelity Research FR-2 moving coil cartridge and RS-10 headshell.

As any knowledgeable vinyl lover will know, Fidelity Research was a Japanese ‘vinyl-things’ manufacturer, with a legacy of sublime cartridges, step-up transformers and beautifully made headshells.… Read more

Fidelity Research FR-1 Mk3 Cartridge + RS-141 Headshell – Wow!

Over the last couple of months I’ve been ‘secretly’ acquiring some vinyl goodies. First, I purchased a mint condition Fidelity Research FR-1 Mk 3 moving coil cartridge…

I followed that up with a matching Fidelity Research RS-141 one-piece milled aluminum headshell. These wonderful pieces of Japanese analog engineering partner up with my Jelco SA-750D tonearm, Kenwood KD-600 direct-drive turntable and (of course) Fidelity Research XF-1 M step-up transformer.… Read more

Legendary Yamaha NS-1000M Loudspeaker Review

The Yamaha NS-1000M monitor loudspeaker is proof it can be done. ‘It’ in this case being the creation of a unique, inspired loudspeaker, that in many ways has no peers to this day.

The legendary NS-1000M monitor loudspeakers are vaunted in audio circles and loved by many thousands of owners. I’m lucky enough to own this pair, so it’s time I reviewed them.Read more

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 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