starn02 said:Hi everybody,
I actually tried the kit from AudioDigit (I live in Italy) , and it's VERY GOOD!
No problem of RFI interferences at all, and the Alps pot is a good plus, the amplifier is complete.
A friend of mine bought the kits from 41 Hz too, they seem quite good, but the SMD components intimidated him ... and after two months the kits are still to be assembled....
I actually built my kit from Autocostruire in less than an hour, no problems at all. And the sound is fantastic, they say it's due to the air core inductors ... and I'm quite confident they are right.
Hope this helps.
JWFokker said:Looks nice, but it costs 4x as much as the Amp3 from 41hz.com. I wish someone would sell a through hole PCB though. I don't want a kit, as I'd prefer to pick my own parts. I should write to 41hz.com about it.
starn02 said:As regards the sound I can say that it compares quite well. It's a bit more powerful, and the sound is more "delicate", in the sense of a noticeable refinement , expecially on highs.
The most noticeable effect, which really striked me, was the sound of the "tape hiss" on old recordings. The sound of the kit from Autocostruire is really impressing, it's really "true". The same applies to high frequncies in general. I think it's due to the air core inductors, they are said "saturation free" by the description, and of course they don't suffer of the hysteresis curvature as the common ferrite cored ones.
To be short, this new kit in my opinion is really a step further, not to mention the easiness of building and mods.
starn02 said:I actually use it with a Marantz CD 17 and a pair of Triangle Titus.
I tried with other combinations too, and I can say that the sound is easy to "trim" ... do you want more highs? Use a different CD player ... do you want more softness ? Well, switch to speakers with a silk dome tweeter ...
My suggestion is that the sound of the amp is a bit on the "warm" side (just like a tube amp ... ) so inserting it in a pre-existing setup should normally be easy and rewarding .... a good upgrade, in other words (an a cheap one too ).
starn02 said:Ah, I forgot one thing.
I don't think it's wise to set the inductors far from the circuit. The board is small (about 80 x 50 mm) and the circuit is optimized for creating very small current loops.