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Sibelius a new amp

CJ14

O.H.
128087964_2471996583103268_9062172395412417133_o.jpg


Top left PCB convert Balance to un-Balance,Top right PCB is the twin bridge PSU with 88,000uF Caps and the 12V supply for the Balance PCB and the ON LED drive. The bottom two PCB's are the power Amp, they will be running 35W P-P Class A.
NOTE:- The balance PCB can have a variable gain control not used in this project.
Running the PCB on +20 and _20VDC will allow with larger heat sink a deeper current and more Class A, also note the DC offset can be adjusted to less than 1mV, max current is 12A continuous and 1mS peak current can be over 100Amps. Then the fuse blows.

Great fun on a lock down day.
 
It does rather...

So this is a partnership with Pearl Acoustics, who manufacture a very fine loudspeaker of the same name. They recently trialled our mid-range M-50 power amplifier and were rather impressed, so this is a special design just for Harley! It's somewhere between our M-50 power amplifier and our discontinued Oberon amplifier, very much based on M-50 but now biased to A.

This isn't a powerhouse like the M-100 series, but it's going to put out thirty five (and more) W RMS of glorious Class A goodness. I hope to hear it before the prototype is shipped out!
 
Is there any connection with Finland or the composer, as it's a little unusual to find amplification named after classical composers?
 
Colin, does that Balanced conversion PCB work both ways; ie will it convert a SE output to Balanced?
 


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