slownlo
Active member
- Joined
- Jun 23, 2006
- Messages
- 42
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Just finished the wiring of one and got it hooked up to my Dussun V8i (using as a preamp) and Opera Linear Reference 2.2 CD player....I gotta tell ya, this things sounds better than anything I've heard below $10K,...I kid you not...quiet as hell, and detailed as a mofo...I suspect when I get the 2nd one wired up they are gonna image like nobodies business. I'm waiting for my electronics modules to get back from Jim Powers (out for repair) so I can test these on my CLS I's... I'm not into loudness or bass really so despite the fact these are only about 5w amps I will still enjoy the detail and imaging with the CLS's...
Power and Choke trannies are Hammond 300B/193M....OPT is James.
The Fi Primer 300B is a classic circuit that uses a parallel 6SN7 for input and driver, very simple and beautiful sounding...if you want the scheme, just Google "Fi Primer"...
I mirror imaged the chassis' so they are a left and a right amp...if you build it, keep the input wire short (under 4") and use silver wire about 18awg... I have my input jacks on the inside of each chassis right next to the 6SN7 input/driver...I also had the chassis' power coated a candy apple blue...they look as sexy as they'll sound.
Updated: Lats pic shows both mono-blocks together being tested thru some hot rodded Advent 1's (rebuilt XO's, binding posts, silver wire, etc...) and man was I right...they image like nothing I've ever heard...very sensitive to driver tubes used (I tried a bunch of NOS tubes I had that they did not like at all), I ended up using some Chinese Sino 6SN7's that were ultra quiet...I'll have to put in an order for some low noise tubes thru Tube-Depot...
Anyway, they sound amazing. Very linear, and detailed with a deep wide soundstage... my buddy has a Harmonix Reimyo Series PAT-777 300b amp and when he came over today to listen he said that mine sounds much more detailed, balanced and musical...I was blushing since the PAT-777 cost about $25K new...
All said and done these amps cost me about $900 in total. That includes everything...minus the hardwork of putting them together and teaking the circuit...but I now have a pair of 300B SET mono-blocks that I can live with for the rest of my life and I didn't spend a kings ransom (like my buddy did) to get it...
Its liberating being able to build your own gear...and the feeling of pride that I have because I built it myself is beyond anything you can get buying from someone else...
DIY Rulez!
Power and Choke trannies are Hammond 300B/193M....OPT is James.
The Fi Primer 300B is a classic circuit that uses a parallel 6SN7 for input and driver, very simple and beautiful sounding...if you want the scheme, just Google "Fi Primer"...
I mirror imaged the chassis' so they are a left and a right amp...if you build it, keep the input wire short (under 4") and use silver wire about 18awg... I have my input jacks on the inside of each chassis right next to the 6SN7 input/driver...I also had the chassis' power coated a candy apple blue...they look as sexy as they'll sound.
Updated: Lats pic shows both mono-blocks together being tested thru some hot rodded Advent 1's (rebuilt XO's, binding posts, silver wire, etc...) and man was I right...they image like nothing I've ever heard...very sensitive to driver tubes used (I tried a bunch of NOS tubes I had that they did not like at all), I ended up using some Chinese Sino 6SN7's that were ultra quiet...I'll have to put in an order for some low noise tubes thru Tube-Depot...
Anyway, they sound amazing. Very linear, and detailed with a deep wide soundstage... my buddy has a Harmonix Reimyo Series PAT-777 300b amp and when he came over today to listen he said that mine sounds much more detailed, balanced and musical...I was blushing since the PAT-777 cost about $25K new...
All said and done these amps cost me about $900 in total. That includes everything...minus the hardwork of putting them together and teaking the circuit...but I now have a pair of 300B SET mono-blocks that I can live with for the rest of my life and I didn't spend a kings ransom (like my buddy did) to get it...
Its liberating being able to build your own gear...and the feeling of pride that I have because I built it myself is beyond anything you can get buying from someone else...
DIY Rulez!
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