pcga
Minor Hero
Posts: 32 
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Post by pcga on Nov 25, 2016 19:16:17 GMT -5
XPA gen3 amp has 91dB snr at 1W the BASX A-300 has 100dB snr at 1W, 9dB better than the XPA gen3. Thanks that is good. Have anyone read any reviews of the XPA Gen 3 - I am considering using it for bi-amping to a traditional stereo set up (with AudioVector Si6AA which a re superb speakers with a very clear sound). |
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Post by dwaleke on Nov 25, 2016 19:40:23 GMT -5
XPA gen3 amp has 91dB snr at 1W the BASX A-300 has 100dB snr at 1W, 9dB better than the XPA gen3. I own both. If you asked me which one had better snr I couldn't tell you without looking at the spec. SNR rating is kind of an irrelevant spec to base a purchasing design on anyway. It's only measured at 1w and full output and a-weighted. What's it at 10w, 50w, 100w, etc? Just not enough data. |
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Post by jackpine on Nov 25, 2016 20:13:09 GMT -5
XPA gen3 amp has 91dB snr at 1W the BASX A-300 has 100dB snr at 1W, 9dB better than the XPA gen3. I own both. If you asked me which one had better snr I couldn't tell you without looking at the spec. SNR rating is kind of an irrelevant spec to base a purchasing design on anyway. It's only measured at 1w and full output and a-weighted. What's it at 10w, 50w, 100w, etc? Just not enough data. The 1W snr is easy to compare one amp to another. The full power ratings are hard to compare with amps of different power ratings. In the first page of this thread Big Dan mentions a 123dB snr, not sure where that figure comes from. |
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Post by Jim on Nov 25, 2016 20:17:28 GMT -5
XPA gen3 amp has 91dB snr at 1W the BASX A-300 has 100dB snr at 1W, 9dB better than the XPA gen3. Have you heard the gen 3 head to head against another amp to compare SNR? Even though 91 is lower - it really doesn't tell you how it sounds or if that SNR is audible. You're still talking a whopping 91db regardless. I think many people who have reviewed it and compared it to other amps with higher SNRs would argue it more than holds its own. |
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pcga
Minor Hero
Posts: 32
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Post by pcga on Nov 26, 2016 8:06:03 GMT -5
XPA gen3 amp has 91dB snr at 1W the BASX A-300 has 100dB snr at 1W, 9dB better than the XPA gen3. Have you heard the gen 3 head to head against another amp to compare SNR? Even though 91 is lower - it really doesn't tell you how it sounds or if that SNR is audible. You're still talking a whopping 91db regardless. I think many people who have reviewed it and compared it to other amps with higher SNRs would argue it more than holds its own. No - I hve nt heard the Gen 3 at all - am in Denmark and don't know where to turn to listen to it. Hence, I need to analyse the data and make a trust based decision. |
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Post by Jim on Nov 26, 2016 9:51:20 GMT -5
Have you heard the gen 3 head to head against another amp to compare SNR? Even though 91 is lower - it really doesn't tell you how it sounds or if that SNR is audible. You're still talking a whopping 91db regardless. I think many people who have reviewed it and compared it to other amps with higher SNRs would argue it more than holds its own. No - I hve nt heard the Gen 3 at all - am in Denmark and don't know where to turn to listen to it. Hence, I need to analyse the data and make a trust based decision. My response was more directed at Jackpine. I wasn't sure if he was trying to say that "91" was bad. I completely understand the challenges of making a decision based on trusting others impressions. Good luck! I don't think I've seen any negative or constructive criticism about the Gen 3s - for what that's worth. |
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Post by Dan Laufman on Nov 26, 2016 11:06:54 GMT -5
Hi guys,
Let me interject here...
The XPA-G3's are significantly quieter than the Gen 2 models. Now, I've just taken a look at the BasX amplifier s/n specs and it concerns me that they are all exactly the same. This should not be the case. I'll report my finding next week.
I'm going to have Joe retest these model to confirm that 100dB 1 watt number in particular. Frankly, that seems too goo to be true.
I want to reassure everyone that the new Gen 3 amplifiers are really quiet!! And the Class H circuitry does not have any impact on s/n. Where poorly implemented Class H designs can bite you is in THD measurements. As you can see from the AP test data, we do not have this problem!
91 dB at one watt is very good! Trust me, that's pretty darn quiet for a power amplifier with 29dB of gain.
I've gotta' go eat some leftover pumpkin pie now... 😜
Peace out,
BIg Dan
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pcga
Minor Hero
Posts: 32
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Post by pcga on Nov 26, 2016 14:25:00 GMT -5
Thanks Dan - hope the leftovers were tasty! My audiophile friend who raised the question regarding the SNR sold me my loudspeakers ( AudioVector Si6 RR (older version of these www.audiovector.com/floorstanders/2013-05-24-10-49-27/sr-6-avantgarde-arrete ) ), thus he feels kind-of responsible for my audio investments  . His second point was that Class H doesn't have a clear treble. Not sure I am convinced - I have some older Linn gear and it sounds great. Amps are just getting tired. though. And new Linn is redicuolously expensive - hence stumbled over Emotiva. Any comments form you or anyone on using the XPA Gen 3 (with the XPS-1 or similar) for traditional Hi-Fi Stereo (no video) with highly clear & sensitive loudspeakers (look at the AudioVector specs - and I tell you, you should listen to them them!) - mostly acoustic - classical and jazz |
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Post by Dan Laufman on Nov 26, 2016 14:47:53 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... |
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Post by novisnick on Nov 26, 2016 14:52:03 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!  |
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Post by Dan Laufman on Nov 26, 2016 14:56:04 GMT -5
Exactly!!!!
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Post by garbulky on Nov 26, 2016 16:14:24 GMT -5
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Post by lehighvalleyjeff on Nov 26, 2016 16:45:41 GMT -5
Having owned many amplifiers over the last 25+ years and being particularly difficult to satisfy sonically, I can attest to the fact that my class H XPR-1 amps are an end game amp. There is no "grain" or audible artifacts when the amp transitions. This is not true of the earlier class H designs (not by emotiva, just in general). The graininess that once plagued earlier class H amps is literally a thing of the past when listening to the XPR-1.
I cannot personally comment on the XPA gen 3 as I've not personally heard them. I will tell you that I am currently shopping for another pair of XPR-1's to bi amp with bc I haven't found another amp by any manuafacturer in that price point that even comes close. I hope this helps.
My only complaint with the XPR-1s is that they were discontinued. Ultimately I want another pair!!!
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Post by wilburthegoose on Nov 26, 2016 16:57:07 GMT -5
I'd love to see an official Emotiva video that explains the details on the Gen3 and what sound quality differences a buyer could expect. (It's been over a year since an official video has been posted at the official YT channel www.youtube.com/user/EmotivaAudioCorp/videos) |
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Post by lehighvalleyjeff on Nov 26, 2016 17:01:46 GMT -5
I'd love to see an official Emotiva video that explains the details on the Gen3 and what sound quality differences a buyer could expect. (It's been over a year since an official video has been posted) +1 |
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pcga
Minor Hero
Posts: 32
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Post by pcga on Nov 26, 2016 17:40:10 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 |
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Post by benbvan on Nov 26, 2016 17:48:57 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
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Post by garbulky on Nov 26, 2016 17:52:57 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 I doubt Emotiva will ever release a crap amp! I have never heard an Emo amp do badly. |
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Post by novisnick on Nov 26, 2016 17:54:11 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!!🍀 |
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pcga
Minor Hero
Posts: 32
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Post by pcga on Nov 26, 2016 18:12:36 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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. His second point was that Class H doesn't have a clear treble. Not sure I am convinced - I have some older Linn gear and it sounds great. Amps are just getting tired. though. And new Linn is redicuolously expensive - hence stumbled over Emotiva. 
