View Full Version : Pioneer M-4


mertol
04-25-2007, 07:31 AM
Hi Pioneer gurus ;

I have brought a M-4 from Germany. This week I've been dealing with the SAE Mark XIV's , as I recognised that the XO was demaged beyond restoration and the woofers were not originals, I have chosen to give this monster back , and returned my attention to the lovely M-4.

I bought it for 604 euro + shipment to Turkey, which I think was a fine price though there were some marks on the face and woods.

Despite being only 50 watts , it looks like it has a lot of muscles. Being a Class A amplifier with modest heatsinks at can also work as a heater.

Sound is very warm and detailed but one strange thing about the amplifier is that even at exteremely low volume setting it still sounds powerfull with a lot of bass.

Enough buzz words. I am looking for any info/doc about M-4, service/user manuals etc...

By the way I will built a 220 to 100V converter for the amp, any recomendations about which type of transformer I should use? Regular, torroidal etc..

regards
Mertol Ozyoney

Dr. Strangelove
04-25-2007, 07:42 AM
Greetings, and welcome to AK and the Pioneer forum.

I have photos of the M4 and M4a, but server issues are blocking uploads at this time. I will post them as soon as possible.


Doc

Dr. Strangelove
04-27-2007, 12:52 AM
OK. New server in operation. Let the posting begin!

Here are photos of the M4 and the M4a.

The M4a is from a 1981 Japanese catalog.

Doc

http://audiokarma.org/forums/attachment.php?attachmentid=47787

http://audiokarma.org/forums/attachment.php?attachmentid=47788

Marek
04-28-2007, 02:24 AM
Absolutely gorgous amp!

Welcome to AK :thmbsp: