Behemoth

My original preamp from the turn of the millenium:

My OTT preamp

My OTT preamp

OTT preamp internals

OTT preamp internals

Back then, it was top quality in every possible way, but I never got to do the corresponding power-amp as there’s something something a bit too “zen” about them – reams of transistors, resistors and capacitors, and lots of complex calculations along with guesswork and testing.  I simply wasn’t smart or experienced enough, so I bought this instead:

Chord SPM 600

Chord SPM 600

I’d never liked my Behemoth’s big black case but there was nothing better at the time.

But times have changed and I started thinking about moving the insides of the Behemoth into this much smaller slicker case from ebay:

S-2207 Aluminium Enclosure

S-2207 Aluminium Enclosure

The idea started as two of these boxes splitting the Behemoth into an RIAA- and pre-amp in a box each.

Then I stumbled over these:

Class-D power amp

Class-D power amp

 

Class-D power amp

Class-D power amp

Class-D power amp

Class-D power amp

Tiny PCBs using the Texas Instruments TPA3116D2 and high quality components.  Available on ebay for £9; so a third box then as the power amp?  Essentially a top of the range DIY HiFi system costing under £100 by reusing parts of the Behemoth.

So I bought cases, and started drilling holes, but as this progressed, it slowly dawned on me that everything could fit into a single case, so be super-cute too.  And that’s my latest project.  There’s not much technical content, but I’ll post up bits and bobs as and when.