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Old 1st July 2005, 08:12 PM   #1
kujina is offline kujina  United Kingdom
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Exclamation Class t-amp-2020 Kit - Check it!

I was searching around on google and came across a TA2020 based amplifier kit. This kit looks pretty good can anyone tell us if its any good, anybody purchased one?

Here are some more screen shots
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Old 1st July 2005, 09:49 PM   #2
Jorge is offline Jorge  Brazil
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Have you see the 41Hz audio site?

http://www.41hz.com/

They have 3 T amp kits.
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Old 1st July 2005, 10:48 PM   #3
kujina is offline kujina  United Kingdom
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Hi

Yes I have been looking at 41hz.com this evening. Though the kit on www.autocostruire.com seems a lot easier to solder if you arnt confident with your skills and you can also purchase it pre assembled.
I'm not sure which kits to buy as I've barely done soldering ofsurface mount components.

Anybody with extra thoughts on these?
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Old 1st July 2005, 11:33 PM   #4
Jorge is offline Jorge  Brazil
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My personal feeling re T amps and SMD is that although they are a PIA to solder, the very high freq envolved (MHz magnitude) makes the smallish/low inductance components advisable.
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Old 2nd July 2005, 12:44 PM   #5
starn02 is offline starn02  Italy
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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.
Bye.
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Old 2nd July 2005, 07:11 PM   #6
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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.
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Old 2nd July 2005, 09:11 PM   #7
kujina is offline kujina  United Kingdom
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Quote:
Originally posted by starn02
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.
Bye.

Thanks for sharing, do you also have a SI T-amp? if so how does it compare?
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Old 3rd July 2005, 06:57 AM   #8
starn02 is offline starn02  Italy
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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.
Bye.
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Old 3rd July 2005, 11:01 PM   #9
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Quote:
Originally posted by JWFokker
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.
Hi,

yes the kit is a little bit more then 3x the price (25 Euro vs 80 Euro). But, if you look at it differently. If I build the Amp3, I'll need the appropriate soldering Iron. I have a soldering Iron, but it is not a 60W and I would need to buy one. I will also need to buy a good ALPS pot. I will have to solder some surface mounted components for the first time and it will take me a few hours...let say 2 hours.

AMP3
-------
60W Soldering Iron = $30 CND (minimum)
ALPS Pot = $25 CND (minimum)
2 hours of work = worth $40 CND for me
AMP3 + shipping = 35 Euro = $52 CND
Rca connetor = $10 CND

Total would be arround $157 CND


Autoconstruire kit
----------------------
Assembled Kit + shipping = $102 Euro = $151.73 CND


So, for some peoples who only want to build one amp and don't want to do SMT, the kit is a good choice. I'll probably order one into the near future. I'll just wait a few weeks as someone offered me another board an I don't want to make a fast move now.

Best regards,

Daniel
__________________
Daniel
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Old 4th July 2005, 02:21 PM   #10
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Quote:
Originally posted by starn02
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.
Bye.
Hi,

I really appreciate your comment about the new kit !

Could you please tell us the component (CDP & speakers) you used with the Kit amp ?

Thanks !
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Daniel
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