A rare beast - 1970's Diamond Sound 100w Valve Super Bass (Marshall Clone)

[hrd27]

I picked this 100w valve Super Bass up a couple of days ago in Scotland It had been owned by a Polish guy. I did some internet digging and found nothing. No pictures No info. Eventually I found a link to Reverbs background on the high end Laboga amps. Including this

" In 1973, Laboga built an amplifier for Joachim Rzychoń, the then-bass guitarist for the famed Polish band Niebiesko Czarni. This was a turning point for Laboga, whose reputation continued to grow until he became the Polish authority in amplifiers—a title he still holds half a century later  .Adam Laboga’s first guitar amplifier—a modified Marshall Plexi design—was called the Diamond Sound. The name and the use exclusive use of 1970s-era technology make a return in Laboga’s premium amplifier series, which technically and visually recalls the Marshall."  The article also had the attached photo from 1972. I've emailed Laboga and they have asked to see more photos. You will see the rear has serial no 1  however it looks like i'ts screen printed and the the factory would probably add 001 002 etc.  the amp in the old picture has a lighter Diamond sound logo so I expect my amp is a later model.  Anyone got any ideas? info? Stories? 
Opened it up tonight.  A bit of careful refurb will be required before firing it up for the first time. Bare wires and burnt circuit board. See photos 

 

 

Edited April 29, 2022 by hrd27
More info and photos

[Steve Soar]

Wow. That has made my day.

[Jean-Luc Pickguard]

Wow! It looks great with the matching cab. It hurts my back just to look at it though.

 

How does it sound?

[Reggaebass]

Never seen one of those before, very cool 👍

[hrd27]

1 hour ago, Jean-Luc Pickguard said:

Wow! It looks great with the matching cab. It hurts my back just to look at it though.

 

How does it sound?

Opened it up tonight. A bit of burning on the circuit board and broken insulation on cables so a bit of refurb before firing it up. 

[BassmanPaul]

Be very careful - tube amps operate at lethal voltages and can do so ever after it has been switched off!!

Edited April 30, 2022 by BassmanPaul

[paul_5]

13 hours ago, BassmanPaul said:

Be very careful - tube amps operate at lethal voltages and can do so ever after it has be switched off!!

Also the Huge capacitors in there will store voltage (in lethal amounts) for ages. 
 

Unless you know how to properly discharge the stored voltage in those caps then get you it to a pro.