Category Archives: Service

Audiolab 8000Q Preamplifier Repair

Lovely little preamp the Audiolab 8000Q. It’s really only let down by poor quality factory-fitted parts, particularly the capacitors.

This 8000Q came to me with a fault which would see it sometimes take a really long time to turn on. It would sometimes take up to 30 minutes to become operational after turn-on.

In this case, I found one definite and one possible fault.… Read more

Denon DP-30L Turntable Service & Review

I recently serviced a lovely Denon DP-30L direct-drive turntable and decided to spread the word a little about this great deck.

Denon’s DP-30L is an excellent turntable with great features like a quality motor, solid chassis and excellent speed-control circuitry. The DP-30L weighs in at just under 10kg, much more than today’s lightweight decks.┬áThis deck also has commendably low wow and flutter.… Read more

Amazing Kenwood L-1000 Hi-Fi System in for Service

Wow, would you believe I’ve just serviced a complete Kenwood L-1000 hi-fi system?! Just incredible gear, beautifully constructed, with stellar build-quality.

The Kenwood L-1000 series of components are becoming rare now, so to find a complete system in the hands of its original owner is something pretty special. This stack of gear consisted of the Kenwood L-1000M power amplifier, L-1000C preamplifier, L-1000D CD player and L-1000T tuner.… Read more

Yamaha CA-610 and CA-710 Integrated Amplifier Service & Repair

Recently, two friends with lovely vintage Yamaha CA-610 and CA-710 integrated amplifiers sought my assistance to have them repaired. One was dead, the other was not working well.

The Yamaha CA-710 had blown one channel. One of the original output devices, a Sanken 2SA745, had a collector to base short and it had taken out one of the driver transistors.… Read more

Denon DP-1200 Turntable Motor Service

By popular demand, I’ve decided to write some articles about servicing direct-drive turntable motors. Having recently overhauled a Denon DP-1200, this seemed like a great motor to start with.

The Denon DP-1200 is a direct-drive classic, loved by thousands around the globe. Consider this a workhorse deck, solid, well-made, reliable, with great sound. This is Denon’s take on a workhorse, like a Technics SL-1200 which I’ve reviewed here and serviced here.… Read more

Class-A Amplifiers and the Krell KSA-150

Many readers will be aware of how much I love Krell audio gear and their class-A designs. The Krell KSA-150 Class A Power Amplifier is a great example of one of these hot, power-hungry designs. In this article, I discuss the very basics of class-A amplifiers, with service details and images of the gorgeous KSA-150!

You may have already watched my restoration video, where I completely refurbish one of these beasts.… Read more