Category Archives: Amplifiers

Articles about amplifiers, big and small, solid-state and tube.

Sansui BA-F1 Power Amplifier Restoration Update

I’ve now finished restoring a lovely Sansui BA-F1 DC power amplifier. The Sansui BA-F1 is another beast of an amplifier from the golden era of hi-fi.

This Sansui BA-F1 has had a hard life, but will be good as new, once I’ve finished this restoration. I’m replacing all board-mounted capacitors, along with a few semiconductors. I am also cleaning and tidying up wiring and board goofs made by whoever repaired this previously.… Read more

Yamaha MX-1 Statement Power Amplifier Repair

I’ve just finished a repair on an amazing power amplifier – the Yamaha MX-1. You can skip to the video now, or read on for more details…

The Yamaha MX-1 was the best and most expensive amplifier in the Yamaha line-up for 1993. I truly had to wrestle this thing around the workshop, it’s so heavy for its size, it feels like it’s made of lead!… Read more

Classic Quad 405 Power Amplifier Restoration

I recently purchased a classic Quad 405 power amplifier to use as my main stereo amp. It sounded fantastic even before my overhaul, read on for the gory details and, for some extra reading, check out my Quad 405-2 review.

The Quad 405 is revered by many real hi-fi nuts, even 40 years after its release.… Read more

Marantz PM-8 Esotec Integrated Amplifier Repair & Restoration

I’ve been very busy repairing and restoring this stunning Marantz PM-8 integrated amplifier. In my opinion, this is one of the best integrated amplifiers from the golden era of the 70’s and 80’s.

More photos and details of the Marantz PM-8 restoration soon. You can find my article about the exploded filter capacitors, here!

In the meantime, here’s a video summary of the testing and setup of bias, DC offset and power supply voltage.… Read more

Rogue Audio Sphinx Integrated Amplifier Repair

I recently repaired this Rogue Audio Sphinx hybrid valve / class-D integrated amplifier. The repair also reminded me of a valuable lesson in always checking the obvious!

The Rogue Audio Sphinx is a nicely made amplifier, hand-built in the USA which is a very good thing. The amplifier features an unusual topology, consisting of a tube preamplifier, solid state power supply, support circuitry and two Hypex class-D output amplifier modules.… Read more

Fantastic Pioneer A-X540 Integrated Amplifier for Sale

New from Liquid Audio is a stunning little Pioneer A-X540, 85 watt per channel integrated amplifier. Asking just $295. UPDATE – SOLD!

This amplifier is perfect for someone looking for a compact, powerful amplifier for a second system, or perhaps looking to set up their first proper system. Again, this is a one owner amplifier and a great buy.… Read more

Musical Fidelity X-CAN V3 Class-A Headphone Amplifier for Sale

Another great piece of audio gear for sale from Liquid Audio, this is a highly regarded, Musical Fidelity X-CAN V3 class-A tube headphone amplifier, in pristine condition, with original packaging. UPDATE – SOLD!

This X-CAN V3 class-A tube headphone amplifier is a perfect example of the fine pieces Liquid Audio offers for sale. She comes with all her original packaging, instructions, power supply and AU adapter.… Read more