pcga
Minor Hero
Posts: 32 
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Post by pcga on Nov 26, 2016 18:13:59 GMT -5
As I stated before the background is black, non existent. I hear absolutely zero hiss or noise at all, and dynamics are amazing. I too questioned this amp design and Big Dan assured me that I would not be disappointed. Man, he was so right. I have all sorts of video equipment hooked up also and never ever hear any interference or any distortion in my system. Using XPA Gen 3, 2channel set up Thanks Ben (?) - have you done any comparisons with other amps with your set up? |
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pcga
Minor Hero
Posts: 32
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Post by pcga on Nov 26, 2016 18:17:39 GMT -5
Thanks dan Laufman, and everyone for the comments and the assertion of the Class H design with user-experience on the XPR-1. However I am looking at the XPA Gen3 - any comments on that from anyone? I am interested in comments to using the XPA Gen 3 (with the XPS-1 or similar) for traditional Hi-Fi Stereo (no video) with highly clear & sensitive loudspeakers - mostly acoustic - classical and jazz The XPA Gen 3 share H class technology, this is why I and others resonded as we did, not having experience with the gen3 amps. drawing from my many experiences I predict the exceptional XPS-1, either generation and these amps should be a perfect match!! I have a large collection and appreciation of both classical and jazz music. Ive also had time with this setup with Klipsch 🔊 speakers which are extremely efficient. Hope this helps a little more, thats all I can do for you. Good luck!!🍀 Thanks for comments - aslo on the XPS-1. Helpful |
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Post by benbvan on Nov 26, 2016 18:21:37 GMT -5
You're welcome. No, I did not demo other power amps with my particular set up. But I have listened to many different amp and speaker setups in the past. The cleanest, purest amplifier I can ever remember was Mark Levinson No.33 pushing WATT Puppys. And I've heard many on the other end of the spectrum. I'm simply blown away at the clarity of this amplifier. I'm not using Klipsch level sensitive speakers but my Polk Rti A7 are above average sensitive for a large floor standing speaker. They take a ton on power to fully open up and this amp does it without a sweat.
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Post by Jim on Nov 26, 2016 18:25:48 GMT -5
Interesting. XPA gen 3 SNR at 1W: 91.8 db XPA-1 Gen2 : 89.2 db I think that if you're comparing the classic hulking 73lb XPA-1 against the new fangled XPA Gen 3 -- SNR isn't an issue! I always thought the SNR was higher on the XPA-1 (like 117db) but then realized that's the full power SNR measure. Sounds like Lonnie has been busy with his slide rules and abacus to get things tweaked.  Nice to see Dan poke his head in and add some comments! (I would LOVE to hear a Gen 3 at Emofest 2017.......) |
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Post by tchaik on Nov 26, 2016 22:12:53 GMT -5
Please let me state this again... The Class H design has NO audible artifacts. We employ a "Soft Switching Class H" that totally eliminates any THD spike at the transition voltage. You can run this amp at 20kHz and you will not observe a THD spike at the Class H transition point. This is not 20 years ago... our control circuitry is much better now and the new high speed, low on resistance FET's have changed the game. Just because older design sucked, does not mean new ones do too. There are no audible penalties with a properly designed Class H amplifier. Like ours... My XPR-1's will attest to this statement!  and my xpr-2's………….. |
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Post by dregoric on Nov 30, 2016 1:04:02 GMT -5
Hello everyone! I'm looking for an advise on XPA Gen3 amplifier. Does it have fans inside and if it does, are they noisy or they run smooth and silent? Also, how reliable is XPA Gen 3? I have seen some comments of blowing capacitors, units not turning on, etc.
Another point, I have Onkyo TX-RZ800 AV receiver connected to pair of Klipsch RP-280F speakers. They are very efficient with 98dB sensitivity and 150W RMS at nominal. I listen to heavy metal music like Sepultura, Sourfly, Gorefest, etc.. and my question is will I get an improvement in sound if I buy 2 channel XPA Gen 3 and connect it to pre-amp section of my Onkyo receiver? Does anyone have similar experience?
Thanks in advance!
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Post by benbvan on Nov 30, 2016 2:03:17 GMT -5
Hello dregoric, there are no cooling fans in this amplifier. I haven't heard of any capacitor failures and would be interested where you found this information. If you read up on the GEN3 units you'll see they aren't a typical class A/B power supply with Giant Transformers and Huge capacitors, though there are several. I have my Gen 3 connected to a Denon AVR-X4200, running Polk Rti a7 towers. Less sensitive and MUCH more power hungry than your Klipsch and they play louder, cleanly than I can comfortable listen to for more than a minute or so.
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Post by dregoric on Nov 30, 2016 2:25:33 GMT -5
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Post by benbvan on Nov 30, 2016 3:16:39 GMT -5
Yes I noticed an improvement. The Denon unit really is a gem, clean, powerful... but when the amp got connected there was a huge improvement in impact, depth, sound stage and overall dimension. I read the report you posted and I have to say this is rare, and it does not address the unit you are asking about. The writer was referring to either a XPA-3 Gen1 or Gen2.. likely the Gen2 unit based on when the article was posted. XPA-3 Gen 1 and 2 are 3 channel amplifiers of different design. Read the webpage about the Gen3. It's a different amp.
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Post by dregoric on Nov 30, 2016 3:50:52 GMT -5
Yep, I know it's different and I hope I'll have no issues with it. I'm just thinking about ordering one. How long do you have XPA Gen3 unit? No any issues so far? Apologize for so many questions..
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Post by benbvan on Nov 30, 2016 3:55:52 GMT -5
No issues at all. It has been a stellar unit. I've been running it for about 6 months and have run it long and at times very loud.
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Post by dregoric on Nov 30, 2016 5:29:04 GMT -5
Good to hear that. Thanks a lot for your feedback!
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Post by dregoric on Dec 5, 2016 6:30:30 GMT -5
One more question guys. I'm thinking about 2 points:
1. 300W RMS for each channel to drive 92dB/1W/1m Klipsch towers - is this not too much for such sensitive speakers? Does anyone have Klipsch and Emotiva
2. I'm looking at XPA Gen 3 + DAC DC-1 to use it as a pre-amplifier as well. How this pair is working? Is DC-1 would be fine doing as pre-amplifier?
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Post by novisnick on Dec 5, 2016 7:13:22 GMT -5
One more question guys. I'm thinking about 2 points: 1. 300W RMS for each channel to drive 92dB/1W/1m Klipsch towers - is this not too much for such sensitive speakers? Does anyone have Klipsch and Emotiva 2. I'm looking at XPA Gen 3 + DAC DC-1 to use it as a pre-amplifier as well. How this pair is working? Is DC-1 would be fine doing as pre-amplifier? Good question but this would be a excellent match IMHO. The Klipsch, though sensitive, really enjoy the extra headroom of MORE POWER. I've driven a set of 28's with XPR-1 momster monoblocks. The Klipsch became some serious beasts!! DC-1 continues to be an exemplary piece of kit!! Enjoy! |
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Post by wilburthegoose on Dec 5, 2016 12:10:20 GMT -5
The user manual for the Gen 3 states:
"Also note that, while the exceptional sound quality of the XPA Gen3 modular power amplifier, and
its two-channel continuous power rating, remain the same whether you choose to use a 120 VAC
line or a 230 VAC line, the multi-channel power ratings are somewhat higher when you power the
XPA Gen3 from a 230 VAC circuit. While the XPA Gen3 modular power amplifier will provide plenty
of power for most home theater installations when run from a 120 VAC line, for the absolute best
possible performance, we recommend operating the XPA Gen3 from a 230 VAC line."
Has anybody done a comparison of a Gen3 running on 120 volts versus 230 volts?
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Post by benbvan on Dec 5, 2016 14:22:06 GMT -5
I haven't used 220 volt because I'm only running a 2 channel Gen3. I've thought about it though.
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Post by dregoric on Dec 6, 2016 3:45:09 GMT -5
One more question guys. I'm thinking about 2 points: 1. 300W RMS for each channel to drive 92dB/1W/1m Klipsch towers - is this not too much for such sensitive speakers? Does anyone have Klipsch and Emotiva 2. I'm looking at XPA Gen 3 + DAC DC-1 to use it as a pre-amplifier as well. How this pair is working? Is DC-1 would be fine doing as pre-amplifier? Good question but this would be a excellent match IMHO. The Klipsch, though sensitive, really enjoy the extra headroom of MORE POWER. I've driven a set of 28's with XPR-1 momster monoblocks. The Klipsch became some serious beasts!! DC-1 continues to be an exemplary piece of kit!! Enjoy! Thanks for feedback! |
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Post by ludi on Dec 6, 2016 10:29:33 GMT -5
Nice reward for these amps:  |
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Post by dregoric on Dec 6, 2016 10:54:12 GMT -5
I was going to order XPA Gen 3 and just looked at its size, its 19" deep, so huge! My stand is only 17,5" deep  Can anyone who owns new generation of XPA measure the distance between front and rear feets, please ? Can I feet XPA in 17,5" deep stand?? Looking for your help guys! |
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Post by benbvan on Dec 6, 2016 20:25:22 GMT -5
If you call or email tech support they have a diagram they will send you.
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