Not sure if this belongs in DIY or reviews, I'm new here
Anyway I have just finished building a pre and poweramp from Greg Ball's SKA kits http://www.ska-audio.comand they are so good I thought I would post a quick review.
I built the SKpres and GB150 class AB amps powered from a single toroid. My source is a modded Arcam Alpha 5+ and the amp really lets the CD player do it's business. My old Rotel 920 has fond memories but was blown out of the water!
The kits were really easy to build and needed no more than a bit of soldering skill which is about all I have. It was a fun project but for me building a pre/power amp was all about getting better kit at a price I could afford. I was blown away but how much performance I got for my money. The thing that impresses me the most is the purity and clarity of the music. High pitches are delivered perfectly with exquisite timing. They sound like they should with no colour or delay. Equally the mid tones are delivered superbly. The bass in my system is not quite correct yet but I feel this is due to my JPW sonata's which I don't think handle the power well here. I don't believe this is a facet of the amps themselve.
This is the first time I have built an amp and I didn't believe I could get the purity of sound I have long wanted but not been able to afford but these deliver.
I have listened to a variety of music so far and it copes superbly with everything from Aida to Abba to Nine Inch Nails. I hate amps that add "colour" or "bloom" to the music and these don't. Quite simply there are notes and tones in some of these recordings that I simply have not heard before as they were hidden in the background. The soundstage created by the amps is really quite impressive. It's hard to describe the effects of an amplifier, I feel that an amplifier should not have an affect on the music and that is exactly what happens here.
I'd love to know if anybody else has built these and would highly recommend them to anybody in the market for a new amp.
p.s. looking for my next diy project, can anyone recommend some easy speakers?