Start with the basic science behind audio measurements. nt

Follow Ups Full Thread

Topic - Class D recommendations - Geofdillon@gmail.com 02:33:41 08/23/22 (147)

RE: Class D recommendations - HiOnFi 10:25:12 09/23/22 (0)

RE: Class D recommendations - svisner 08:26:50 09/03/22 (0)

RE: Class D recommendations - ornery 16:55:42 09/02/22 (4)

That's one reason why I went with a long established company.... - AbeCollins 11:52:56 09/05/22 (2)

RE: That's one reason why I went with a long established company.... - ornery 17:10:31 09/23/22 (1)

Class D reliability - sbrians 15:19:48 06/17/25 (0)

The notorious ASR damnation of VTV thread - Feanor 12:07:47 09/03/22 (0)

Spec RSA-F33EX - Budrew 19:38:09 08/24/22 (37)

Wow, that marketing B.S. is really deep - AbeCollins 07:51:56 08/25/22 (2)

Sucker bait: who'd have though? - Feanor 08:53:08 08/25/22 (0)

that is unconscionable...nt - goryu 08:15:14 08/25/22 (0)

The board pictured on the link you posted is from 2006... - Ivan303 06:59:47 08/25/22 (0)

Pretty, but there is no need to spend over US$22,000 on class D - Feanor 04:10:54 08/25/22 (32)

I looked it up right now online $1,109.00 - $2,458.00 - Story 05:31:22 08/25/22 (31)

The website, (if you look in the right place) - Feanor 08:41:04 08/25/22 (23)

ok thanks for clarifying - now, with the wreck of an economy we have - Story 09:02:10 08/25/22 (2)

The biggest problem with Class D amps in general.... - AbeCollins 09:12:35 08/25/22 (1)

Schiit and PSA have the in common -nt - Feanor 10:46:53 08/25/22 (0)

Is that one using the raw Purifi boards ? - AbeCollins 08:47:45 08/25/22 (19)

Yes it is: straight Purifi module and buffer - Feanor 09:02:08 08/25/22 (18)

RE: Yes it is: straight Purifi module and buffer - AbeCollins 09:08:22 08/25/22 (17)

So VTV is offering choice, not suggestions - Feanor 13:16:37 08/25/22 (7)

RE: So VTV is offering choice, not suggestions - AbeCollins 06:05:06 08/26/22 (6)

If you look around you will find that there are better alternatives to VTV - goryu 06:46:22 08/26/22 (5)

Buckeye is a direct, US-based competitor to VTV - Feanor 08:20:30 08/26/22 (4)

Not circumstancial and not a competitor - goryu 09:59:14 08/26/22 (3)

Yes, some criticisms of VTV have been valid - Feanor 04:08:05 08/27/22 (2)

Yours looks better than many I have seen from VTV - goryu 06:41:08 08/27/22 (1)

Probably the Hypex SMPS1200A400 but I'll have to check -nt - Feanor 08:09:04 08/27/22 (0)

Given the 1ET400A has but 12.8 db of gain - E-Stat 11:19:15 08/25/22 (8)

True, that -nt - Feanor 13:08:45 08/25/22 (0)

RE: Given the 1ET400A has but 12.8 db of gain - AbeCollins 11:52:35 08/25/22 (6)

You have to differentiate models... - goryu 14:24:47 08/25/22 (2)

A useful of the Neurochrome buffer ... - Feanor 08:05:26 08/26/22 (0)

Thanks for the clarification and details.... - AbeCollins 05:54:23 08/26/22 (0)

No need to repeat - E-Stat 12:11:35 08/25/22 (2)

Reiterating with better detail - nt - AbeCollins 12:53:37 08/25/22 (1)

You know... - E-Stat 15:14:45 08/25/22 (0)

Hmmm - E-Stat 05:57:36 08/25/22 (6)

RE: Hmmm - Story 06:09:57 08/25/22 (5)

You're confused - E-Stat 06:57:43 08/25/22 (4)

No - You're confused - AbeCollins 08:10:27 08/25/22 (2)

I guess it depends upon the chosen subject antecedent - E-Stat 08:47:33 08/25/22 (1)

No, you lagged behind because.... - AbeCollins 08:57:50 08/25/22 (0)

well, yes but - Story 07:09:02 08/25/22 (0)

RE: Class D recommendations - RGA 19:18:20 08/24/22 (1)

RE: Class D recommendations - Geofdillon@gmail.com 22:19:48 08/26/22 (0)

RE: Class D recommendations - fstein 08:43:57 08/24/22 (1)

RE: Class D recommendations - cawson@onetel.com 10:41:27 08/24/22 (0)

RE: Class D ??? - bare 07:59:30 08/24/22 (7)

RE: Class D ??? - Geofdillon@gmail.com 19:41:03 08/24/22 (4)

You have been given the state of the art class d amp recommendation- Purifi. Ignore everything else. nt - goryu 05:22:20 08/25/22 (3)

RE: You have been given the state of the art class d amp recommendation- Purifi. Ignore everything else. nt - Geofdillon@gmail.com 22:04:08 08/26/22 (2)

RE: You have been given the state of the art class d amp recommendation- Purifi. Ignore everything else. nt - goryu 06:44:16 08/27/22 (1)

RE: You have been given the state of the art class d amp recommendation- Purifi. Ignore everything else. nt - Geofdillon@gmail.com 09:23:17 08/27/22 (0)

+1 NT - Donald North 19:06:40 08/24/22 (1)

RE: +1 NT - Geofdillon@gmail.com 19:19:34 08/24/22 (0)

RE: Class D recommendations - cawson@onetel.com 06:08:53 08/24/22 (0)

RE: Class D recommendations - goryu 06:14:48 08/23/22 (67)

I can tell you that... - E-Stat 07:57:12 08/23/22 (64)

My experience is that a Hypex NC252MP is less good than Purifi - Feanor 08:54:13 08/23/22 (63)

My experience is that ICEpower is better than Hypex nCore - AbeCollins 08:24:10 08/24/22 (0)

Hopefully, Bruno's newer stuff is better! - E-Stat 09:07:01 08/23/22 (61)

" Couldn't give a crap about what Amir thinks " - Story 09:27:55 08/23/22 (0)

I don't care what Amir thinks, I do care what he measures - Feanor 09:12:57 08/23/22 (59)

RE: I don't care what Amir thinks, I do care what he measures - morricab 01:33:59 08/24/22 (21)

The "THD is irrelevant" argument is stale and a strawman - Feanor 07:05:18 08/24/22 (5)

Please stop using strawman incorrectly - morricab 08:55:58 08/24/22 (4)

I use "strawman" correctly in the context of ... - Feanor 04:24:43 08/25/22 (1)

RE: I use "strawman" correctly in the context of ... - morricab 06:11:58 08/30/22 (0)

RE: Please stop using strawman incorrectly - Donald North 14:30:55 08/24/22 (1)

RE: Please stop using strawman incorrectly - morricab 06:13:56 08/30/22 (0)

An amp doesn't play in a vacuum, it's part of a system. - goryu 05:14:33 08/24/22 (14)

RE: An amp doesn't play in a vacuum, it's part of a system. - morricab 05:57:12 08/24/22 (11)

Start with the basic science behind audio measurements. nt - goryu 06:15:00 08/24/22 (10)

RE: Start with the basic science behind audio measurements. nt - morricab 09:02:12 08/24/22 (9)

Some folks don't understand - E-Stat 16:32:49 08/24/22 (6)

Some folks don't understand that you can't correlate measureable objective data - goryu 19:08:22 08/24/22 (5)

The rest of us call that - E-Stat 05:59:09 08/25/22 (4)

Everyone listens but some of us understand that not everyone hears the same thing. nt - goryu 06:17:25 08/25/22 (3)

try some ear training sometime - Story 06:31:52 08/25/22 (2)

More speculation, blind assumptions, and pointless commentary. - goryu 08:18:47 08/25/22 (1)

bwahaa, bwhaaaaaa - Story 08:45:09 08/25/22 (0)

RE: "stop acting like you know something the rest of us don't" - Ivan303 10:51:14 08/24/22 (0)

The best engineers can do is produce equipment that does what it is suppose to... - goryu 10:09:55 08/24/22 (0)

my preamp has VACUUM TUBES and plays really well too!!! - Story 05:23:49 08/24/22 (1)

Fascinating. NT - goryu 06:44:31 08/24/22 (0)

I must apologize - Story 13:45:56 08/23/22 (0)

RE: I don't care what Amir thinks, I do care what he measures - goryu 11:10:50 08/23/22 (34)

RE: I don't care what Amir thinks, I do care what he measures - morricab 01:51:13 08/24/22 (29)

Measurements can tell a great deal about the objective performance of audio gear - goryu 05:43:35 08/24/22 (28)

RE: Measurements can tell a great deal about the objective performance of audio gear - morricab 06:04:33 08/24/22 (8)

RE: Measurements can tell a great deal about the objective performance of audio gear - goryu 06:37:35 08/24/22 (7)

Aren't they all "wire with a gain" in the minds of their creators ? - Wojciech 12:26:56 08/24/22 (1)

Some designers flavor their amps to produce certain distortion profiles. NT - goryu 15:25:46 08/24/22 (0)

RE: Measurements can tell a great deal about the objective performance of audio gear - morricab 09:04:28 08/24/22 (4)

Sure, as I said, some designers use empirical data to try to appeal, - goryu 10:16:14 08/24/22 (3)

so...are you going to tell us your speakers, amplifiers et al - Story 10:18:42 08/24/22 (2)

Why would that be of any relevance to you? You have missed the point. nt - goryu 12:07:31 08/24/22 (1)

RE: Why would that be of any relevance to you? You have missed the point. nt - Story 12:25:53 08/24/22 (0)

Can measurements tell a great deal about the subjective performance of audio gear?? THAT's THE QUESTION - Story 05:51:51 08/24/22 (18)

RE: Can measurements tell a great deal about the subjective performance of audio gear?? THAT's THE QUESTION - goryu 05:56:15 08/24/22 (17)

whose science? that's another question. Is it a Fauci science? - Story 06:18:31 08/24/22 (12)

Here's a hint: it's not the bleach and horse tranquilizer kind of science. nt - goryu 06:23:41 08/24/22 (11)

change your moniker to 'Great Obfuscator' and a bad one at that - Story 06:35:22 08/24/22 (10)

Not obfuscation, more a failure of comprehension. Try standing up when you read. nt - goryu 06:51:09 08/24/22 (9)

are you a student of GeoffKait? did ASR send you over here to disrupt? - Story 07:02:08 08/24/22 (8)

Have I told you to put your cds in a freezer? - goryu 07:08:40 08/24/22 (7)

why don't you exercise you fingers and tell us - Story 07:12:10 08/24/22 (6)

I have been. Clearly you just don't read well. nt - goryu 07:17:58 08/24/22 (5)

no you haven't, and if I missed it somehow, (my God, how shameful of me))eful of me) - Story 07:28:24 08/24/22 (4)

I'm not here to cater to your remedial educational needs nor - goryu 10:18:56 08/24/22 (3)

it's not a case of bragging, so in the vernacular- PUT UP OR SHUT UP - Story 10:20:52 08/24/22 (2)

Are you going to hold your breath and stomp your feet too? nt - goryu 12:13:03 08/24/22 (1)

RE: Are you going to hold your breath and stomp your feet too? nt - Story 12:27:48 08/24/22 (0)

RE: Can measurements tell a great deal about the subjective performance of audio gear?? THAT's THE QUESTION - morricab 06:06:36 08/24/22 (3)

acoustics is a science, psychoacoustics, on an individual level is a psuedo science, nt - goryu 06:20:39 08/24/22 (2)

No, it's not pseudoscience...it's just not ultra precise - morricab 09:14:13 08/24/22 (1)

RE: No, it's not pseudoscience...it's just not ultra precise - goryu 10:24:20 08/24/22 (0)

Either that... - Ivan303 11:26:10 08/23/22 (3)

RE: Either that... - goryu 11:36:01 08/23/22 (2)

Exactly right - AbeCollins 08:31:28 08/24/22 (1)

in the end - Story 08:49:08 08/24/22 (0)

We are well informed of your shallow evaluation process -nt - E-Stat 09:23:24 08/23/22 (0)

RE: Class D recommendations - AbeCollins 07:04:15 08/23/22 (1)

RE: Class D recommendations - HiOnFi 10:21:42 09/23/22 (0)

I have had 5 class D amps going back twenty years - Feanor 04:19:38 08/23/22 (20)

RE: I have had 5 class D amps going back twenty years - Ralph 08:42:00 08/23/22 (14)

Don't bother about Feanor - E-Stat 09:11:13 08/23/22 (11)

I could say the E-Stat's mind is in a rut ... - Feanor 09:14:49 08/23/22 (10)

It is. He's in an OpAmp and Negative Feedback rut ;-) - AbeCollins 08:39:58 08/24/22 (7)

Or, choice "B" - E-Stat 10:46:30 08/24/22 (6)

So in other words, your opinion, which has little relevancy to others - goryu 05:20:47 08/25/22 (5)

Sorry you haven't heard better -nt - E-Stat 07:00:25 08/25/22 (4)

Sorry you have been listening for 50 years and haven't yet learned a fundamental truth. nt - goryu 08:21:53 08/25/22 (3)

Thanks for the laughs :) -nt - E-Stat 08:44:46 08/25/22 (2)

It's a big man who can laugh at himself. nt - goryu 09:06:01 08/25/22 (1)

Sophomoric humor is you -nt - E-Stat 09:09:21 08/25/22 (0)

Let's repeat! - E-Stat 09:44:16 08/23/22 (0)

so you are rude - Story 09:32:01 08/23/22 (0)

Apology: I stand corrected - Feanor 09:10:46 08/23/22 (1)

No worries! - Ralph 13:40:52 08/23/22 (0)

RE: I have had 5 class D amps going back twenty years - Geofdillon@gmail.com 05:34:36 08/23/22 (4)

RE: I have had 5 class D amps going back twenty years - goryu 06:03:04 08/26/22 (0)

So far my Purifi amp has the best highs, BUT ... - Feanor 08:28:25 08/23/22 (0)

"all class D are better than a 15 year old Hypex" - AbeCollins 06:59:47 08/23/22 (1)

RE: "all class D are better than a 15 year old Hypex" - Geofdillon@gmail.com 22:25:12 08/26/22 (0)

Follow Ups

Start with the basic science behind audio measurements. nt - goryu 06:15:00 08/24/22 (10)

RE: Start with the basic science behind audio measurements. nt - morricab 09:02:12 08/24/22 (9)

Some folks don't understand - E-Stat 16:32:49 08/24/22 (6)

Some folks don't understand that you can't correlate measureable objective data - goryu 19:08:22 08/24/22 (5)

The rest of us call that - E-Stat 05:59:09 08/25/22 (4)

Everyone listens but some of us understand that not everyone hears the same thing. nt - goryu 06:17:25 08/25/22 (3)

try some ear training sometime - Story 06:31:52 08/25/22 (2)

More speculation, blind assumptions, and pointless commentary. - goryu 08:18:47 08/25/22 (1)

bwahaa, bwhaaaaaa - Story 08:45:09 08/25/22 (0)

RE: "stop acting like you know something the rest of us don't" - Ivan303 10:51:14 08/24/22 (0)

The best engineers can do is produce equipment that does what it is suppose to... - goryu 10:09:55 08/24/22 (0)

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