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Need to replace my Optimus STA 20 for desk audio duty

post #1 of 5
Thread Starter 
I am currently running an Optimus STA-20 to a pair of my modded KLH satellite speakers, which really sounds fantastic with these speakers, believe it or not.

The reason why I need to replace it is because it puts out 5 watts RMS with 0.9% T.H.D., while 5 watts normally would be plenty for me, it's just the T.H.D. rating is a little bit on the high side at the rated output

I need something about the same size as my optimus, no taller than 3 ~ 3.5 inches, but offer better power output with low T.H.D.

Reason for the small size is because my desk is taken over by two CRTs which give just enough room for the Optimus to sit:
http://i16.photobucket.com/albums/b44/Hoodcom/Image13-1.jpg

Only other amp I see that seems reasonable is this one, but I want to be sure it would make a good replacement in terms of power and not sound worse, it's a Dayton Audio DTA-100a.
30 watts RMS at 0.01% T.H.D.
50 watts RMS at 5% T.H.D.

http://www.daytonaudio.com/index.php/dta-100a-class-t-digital-amplifier-50-wpc.html

Would this be good or does anyone have any better recommendations?

Really, 10 ~ 30 watts of clean power will be quite sufficient for this setup, I do like to keep some headroom available, especially when watching movies.

Please note, I am not looking to buying computer speakers, just something to power what I currently own. wink.gif
The Blue Wolf
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The Blue Wolf
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post #2 of 5
Yep T-Amps ftw tongue.gif If you can afford/obtain for USD $100 that DTA-100A is a good choice, far less then a TA2020? Efficient speakers count a wee bit with low power T-Amps

This one i recommend to friends/relatives working/studying overseas and is 15quid, free ship Intentionally and comes with a beefier than most sellers 12V/4A PSU (u will need to have a power plug matching your country)

http://www.ebay.com/itm/TA2020-Stereo-Amplifier-Tripath-12v4A-adapter-car-mp3-/120737153411?pt=LH_DefaultDomain_3&hash=item1c1c7ec183#rpdId
Edited by trog - 10/12/11 at 12:13pm
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El Pinguis Cattus
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post #3 of 5
Thread Starter 
Any opinions on this one?

HLLY TAMP-90 90W Class T AMP AMPLIFIER Tripath TA2022:
http://cgi.ebay.com/HLLY-TAMP-90-90W-Class-T-AMP-AMPLIFIER-Tripath-TA2022-/150371339316#ht_10128wt_1396

It features a Toroidal Transformer, and offers a little more power with good T.H.D. rating for $120 more than the Dayton.
The Blue Wolf
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The Blue Wolf
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post #4 of 5
For $120 more nope - u mentioned a height limit so maybe some low profile amp like Audiosource AMP-100 would interest you?
El Pinguis Cattus
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post #5 of 5
Do you want to go with more vintage stuff? smile.gif

Kenwood had a few slim models back in the day like the KA-60, which I think was exactly 3" high, 30WPC, and 0.08% THD.
Edited by Manyak - 10/16/11 at 7:30am
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