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Old 20th December 2009, 08:49 PM   #1
Mywing is offline Mywing  Italy
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Default Threshold SA/4e and SA/2

Has someone compared these two amps?
SA/4 is for me the best choice but... what sonic differences with SA/2 monoblocks? Is changing an upgrade or a downgrade?

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Old 21st December 2009, 01:28 AM   #2
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It's been so many years that I can't remember. They
are pretty similar, though.

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Old 21st December 2009, 01:40 PM   #3
Mywing is offline Mywing  Italy
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Well, I listened a SA/4e many years ago and I loved it so much.
Now at last I've found one, but once I've found a pair of sa/2 almost half the price of the SA/4e. Unfortunately I haven't the opportunity to listen them...
But if their sound and their characteristics are equal to SA/4e the problem is already solved!
Another thing: how do the two units to be very similar if between them there are about ten years apart.
Thanks for the clarifications
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Old 21st December 2009, 06:37 PM   #4
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I didn't say equal. I said similar.

They are different in details, mostly front end, and of course
the SA2's are monoblocks.

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Old 22nd December 2009, 09:47 PM   #5
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My SA2s are wonderful. I don't think you can go wrong with a pair of Sa2s or SA1s. These were and are still fantastic music movers.
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Old 4th January 2010, 04:37 PM   #6
Mywing is offline Mywing  Italy
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Can the Sa/2s operate at both 220V than 110V?
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Old 4th January 2010, 04:44 PM   #7
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Quote:
Originally Posted by Mywing View Post
Can the Sa/2s operate at both 220V than 110V?
Oh no. The amps must be converted to either 110V or 220V. Not switchable.
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Old 4th January 2010, 05:35 PM   #8
Mywing is offline Mywing  Italy
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Thanks.
What is the procedure to convert them? Does it is very difficult to do?

Last edited by Mywing; 4th January 2010 at 05:45 PM.
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Old 4th January 2010, 10:45 PM   #9
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Quote:
Originally Posted by Mywing View Post
Thanks.
What is the procedure to convert them? Does it is very difficult to do?
For converting the SA/2s contact either:
Jon Soderberg <vintageamp@comcast.net>
or
Threshold Audio, Inc. <support@thresholdaudio.com>

Either will provide you a price (should be around $500 for the conversion only).
I would also state the age of the AMPS as they probably need some upgrading and/or overhauling. If you have them overhauled (recommended), it may cost between $750 and $1,200 and that price may include the conversion (good deal).
I strongly suggest having the upgrade done as it brings the AMPS to at least the original spec.
But contact either POC and they will take good care of your SA/2s.
Good Luck.
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