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I have 3 amplifiers and I can't decide which one to use

post #1 of 5
Thread Starter 
So I'm migrating to a new room that is finally big enough for my giant KLH AV5001 350w speakers, and I'm trying to decide which amplifier to use. I am lucky enough to be the owner of 3 rather decent units that were given to me as friends upgraded their home stereo systems. The source audio is coming from my PC, using a very very old Sound Blaster Audigy 1 card.

These speakers are large and inefficient enough that it appears I actually need to consider the power rating of the stereo; I am posting this question because I am getting some unwanted noise as I crank the volume dial up to 6 on my Technics Class H amp. It doesn't seem powerful enough, especially if I want some extra volume, I need to use level 8, and at that level the hissing during quiet parts is just destroying the immersion of the game/movie. I was originally using the Panasonic amp which drove my speakers quite nicely at volume dial level 3, but it is at least 30 years old now, and I've lost the remote. I figured a class H amp would be better, but maybe not? Then there is the Pioneer amp, which is rated at more than twice the wattage. I know wattage ratings from the manufacturer don't mean much, but as I understand it, a low wattage expensive dedicated amp is usually better than a high-wattage cheap cd-player/tape-deck amp. If you think it would be better suited for my purposes I'll give it a try, but it was given to me because it had overheating problems driving four similarly-sized speakers outdoors at high volume.

Here is the technical information sticker printed on the back of my speakers; they are about 4 feet tall, and about 1'/1' square. So about the size of a small child, each:



So here are my 3 choices for amplifiers: Technics SA-GX170 "Class H" (160w), Panasonic SA-H50 (170w), and a Pioneer RX-530 (380w). Here are some photos (click for hi-res)


Technics SA-GX170 "Class H" (160w), on top of the Panasonic SA-H50 (170w)




Rear of the Technics SA-GX170 (160w), on top of the Panasonic SA-H50 (170w)




Pioneer RX-530 (380w)




Rear of the Pioneer RX-530 (380w), note the weird "Beat Cut Switch" at the bottom left. Anyone know what this does? I've lost the manual.





Any suggestions as to what I should choose would be greatly appreciated! I know that ultimately, it would be best just to test each one and find which one sounds best to me. But I find that my sense of hearing, like my sense of smell, only detects the tiny little differences when I'm not paying attention for them. So this would mean test-driving each amp for a few hours before I finally had a verdict on which one is my favorite, and your suggestions would at least give me a head start. Thanks for reading all of this!
post #2 of 5

Try each amp on a few tracks you know really well and see which one you prefer, I see the minimum recommended amplifier wattage is 5 watts so just go with the one that sounds best would be my recommendation.

 

Regards

 

Macrog

post #3 of 5

O/T : i fished out some Kenwood floor standers with 12" woofers and testing with a puny little TA2020 they sound awesome L3000.gif Could be the high sensitivity of those but for small/medium rooms T-amps are a great and cheap way to power up that vintage speaker you just got (if you have no other amp on hand)

1000

 

1000


Edited by trog - 7/22/12 at 12:32am
post #4 of 5

I dont think this is the right section or even forum,

Try Audiokarma instead..

post #5 of 5

I dont think this is the right section or even forum.

 

 

 

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http://www.dvdsaledirect.com/

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