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By Brendon Foster · Posted
So today one of the SNA forum members kindly came over to my place with an Accuphase e260 with DAC40 module. What a beast of an amp! Never heard my speakers sound so engaging at mid-low volume. Two issues however prevented me from pulling the trigger. When increasing the volume (never got past 10.30 on the dial) the treble on my usually incredibly smooth speakers became a little hard and shouty, and the bass became a tad muddy. Despite this, the speakers sounded, rich, powerful, musical and was no doubt an improvement on my own Peachtree Nova 150, especially in the DAC section.
The search continues but I'm getting closer. Still dying to try out Parasound, Hegel and Moon... Anyone in Perth with the above that want to bring some great up for a listen and a beer? -
The snubber capacitors type that I would use now would be MKP10 0.01uF 1000VDC by WIMA as I keep these in stock now for these types of applications. The ones shown in the pictures and used here are MKP 0.1uF X2 275V mains capacitors and were also used across the mains IEC socket. I used them because I only had these at the time however do use this value for the IEC mains socket if you choose to do so. However either will work as a snubber but the WIMA MKP10 were designed more for this application so use that value for the bridge rectifiers. The yellow caps that were used on the underside of the amp modules are Metalised Polypropylene 250V PMT types as I preferred these over the green caps supplied in the kit.
The orange caps are ceramic 400V types which are only to help with oscillation problems associated with the power mosfets, the existing ones that came with your kit should still be okay. As I was building new modules from scratch I dispensed with the idea of recycling components that were cheaper to buy and rely on than to trust second hand salvaged parts. So some component choices were made only for the sake of trying something hopefully better as you can always go back to the original types if you don't succeed. That was the case that I found with the silvered mica capacitors which I used to replaced some of the green caps, so I went back and changed them to polystyrene in the end because they sounded better to me which was confirmed only by trial and error . You will never know if you don't explore however if someone from reputable experience knows then why not try that as well. The worst thing that can happen is to blow up the Hitachi mosfets or some Altec's.... Sorry for that last comment as it was totally out of bad taste. Take care, research and choose wisely. -
I can't find any details of other venues, so this may be it. The guitarist is the older brother and teacher of Victor Wooten. https://birdsbasement.com/show/600/ralphe-armstrongs-fusion-reunion Here's a teaser, lovers of bass guitar will love this. -
By DrTobiasFunke · Posted
This may be a little too 'low-brow'.... but I do love my Psy-Trance😎
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