Hi Arold,
the first question you must answer is, how much power output did I need? it is depending from your speakers, in my case I use Tannoy 15 inches speakers, they have a high efficiency, 96dB for a 1watt, so the 2X30w of an Aleph3 is quiet enough, now why an Aleph 3 and not the 30, there are two reasons for me, first , Mr Pass said we have to put fire on the output device, more current better the result, the Aleph3 has 4 output devices and 6 for the Aleph30,,so on the Aleph3 each device has a higher current, the second reason was an article I read about the Aleph3 at this link:
http://www.stereophile.com/amplificationreviews/674/
George, if you read this post have a look on it.
Arold, if you search on the Pass Labs I think you can find posts about the Aleph30 or else.
Best regards.
Yonnat.
the first question you must answer is, how much power output did I need? it is depending from your speakers, in my case I use Tannoy 15 inches speakers, they have a high efficiency, 96dB for a 1watt, so the 2X30w of an Aleph3 is quiet enough, now why an Aleph 3 and not the 30, there are two reasons for me, first , Mr Pass said we have to put fire on the output device, more current better the result, the Aleph3 has 4 output devices and 6 for the Aleph30,,so on the Aleph3 each device has a higher current, the second reason was an article I read about the Aleph3 at this link:
http://www.stereophile.com/amplificationreviews/674/
George, if you read this post have a look on it.
Arold, if you search on the Pass Labs I think you can find posts about the Aleph30 or else.
Best regards.
Yonnat.
Hi Arold,
yes there are different packages for the same device, I have bought IRFP244 from IR, they are TO247 isolated plastic, the original Aleph3 had IRF244S I think it was TO3, the TO3 is an old package I am not sure you can find it today, have a look at this link:
Vhttp://www.chipdocs.com/pnsearch/search.html?ReR=GG
or at International Rectifier, you can find there the datasheet for all devices.
Regards.
Yonnat.
yes there are different packages for the same device, I have bought IRFP244 from IR, they are TO247 isolated plastic, the original Aleph3 had IRF244S I think it was TO3, the TO3 is an old package I am not sure you can find it today, have a look at this link:
Vhttp://www.chipdocs.com/pnsearch/search.html?ReR=GG
or at International Rectifier, you can find there the datasheet for all devices.
Regards.
Yonnat.
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