Start with One UPA-200, Get Second If Needed? - AVS Forum
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post #1 of 5 Old 07-21-2012, 09:48 PM - Thread Starter
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I just got a Yamaha RX-A820 AV receiver (100w/ch into 2 channels). So far, very happy with the functionality, but driving my Paradigm Studio 100v4 mains it seems a little under powered. As I have been researching my options this site lead me to Emotiva as good, competitively priced amps. Cost is an issue so instead of buying the XPA-3 (200w/ch) at $629 I started thinking about the UPA-200 (125w/ch) at $314.

If a single UPA-200 wasn't enough for both speakers, I could add a second UPA-200 and then bi-amp the Studio 100s. I understand that this is passive bi-amping, but that would provide each speaker with 250 total w/ch (with some power probably wasted and not needed on the midrange/tweeter).

My center channel is powered so no amplification is needed. The third channel of the XPA-3 would be unused but left for when my Active CC center speaker dies and gets replaced.

Two questions:

1) Would a single UPA-200 be enough to sufficiently power the Paradigm Studio 100's with movies (60%) and music (40%) (living room is around 15'x18')?

2) Would the option of adding a second UPA-200 later using bi-amping be a decent way to try a single first but be able to incrementally add power if needed?
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post #2 of 5 Old 07-21-2012, 11:31 PM
 
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An 80 watt per channel amp is not going to make those Paradigms sound any better than your Yamaha.
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post #3 of 5 Old 07-22-2012, 03:27 AM - Thread Starter
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The UPA-200 is 125w/ch, not 80. The Emotiva at 125w/ch (all channels driven) delivers more than the 6 channels being driven Yamaha (whose power is rated with only 2 channels driven). http://shop.emotiva.com/collections/amplifiers/products/upa200

Comments from someone using the UPA-200 with Paradigm Studio 100's (or comparable speakers) would be welcome. If one UPA-200 can do the job, then great. I'm just considering the possibility of first buying one, and if that doesn't cut it, adding a second and bi-amping as an upgrade path that smooths cash flow.
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post #4 of 5 Old 07-22-2012, 05:04 AM
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1. If the Yamaha volume is currently maxed out and you're hearing distortion, then adding the UPA-200 would help.
2. Adding a 2nd amp does not 2x the power, rather simply would provide 125W to each set of speaker posts.

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post #5 of 5 Old 07-22-2012, 09:13 AM
 
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Pardon me, I got my amps mixed up!
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