Category Archives: Power Amplifier

Documenting the build of the first power amplifiers.

Basic Media Amp and Speakers Idea

I finished working out the Box Construction Jig and found I had some 12mm MDF wood left over on the sheet.  I have some nice parts left over from the design of the Boombox and coming system so I thought … Continue reading

Posted in Amp Cabinet, Amplification, Design, High Definition Sound, Loudspeakers, Media, Power Amplifier | Tagged , , , , , | Leave a comment

Pioneer SX-5580 Power Amp Module

Here are some photos of the power amplifier module.  As you can see, it’s big.  But then it would be at 120 watts per channel RMS. This is before cleaning and changing of the electrolytic capacitors.  Given heat, electricity (generating … Continue reading

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Pioneer SX-5580 Receiver Refurb

Here is what I’m working on at the moment, a Pioneer SX-5580 monster receiver (amplifier with built in tuner).  As far as I’m aware, it is identical to the SX-1050 but is in black instead of all aluminium. This photo … Continue reading

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Connections Conundrum

I spoke in my last post about needing to find connectors to link the wires between the amp PCB and the outputs.  I just spent the whole day looking at the web sites of RS Components, Farnell, Maplin and eBay. … Continue reading

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Populating the PCB

The printed circuit board is now being populated.  As you can see I am having to pillage previous versions for parts to keep the cost down; there are some very expensive parts to be bought yet. It feels so good … Continue reading

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PCB Layout and Design using KiCad

The layout of the PCB is progressing well. I spent a few days getting the hardware (as in the old physical sense, not the new computer speak) right which gave me the size of the PCB. I now have a … Continue reading

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Quad 404 – 2 Service and Upgrade Results

My good friend has now listened to his serviced and upgraded Quad 404 Mk 2 and emailed me his assessment: “Btw…finally to answer your question…yes, Quad well worth the 200 smackers to renovate! Listening now…(Erykah Badu)… muddiness gone, “earth loop” … Continue reading

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