Vintage Mac unity coupled consumer tube amps

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Topic - This amp is a no-brainer for me - N.B.C. 21:35:54 02/6/25 (152)

I don't understand the three inputs? /nt - jedrider 09:02:58 03/7/25 (1)

Could be useful if you have multiple upstream sources - Feanor 04:31:01 03/8/25 (0)

ASR review of the Topping B200 arrives !!! - Feanor 08:55:07 03/3/25 (3)

I'd gladly pay 2 -3 times that amount for a USA made version... - peppy m. 09:53:08 03/4/25 (1)

I can understand that, though for my part ... - Feanor 13:18:54 03/4/25 (0)

So is it class A/B or class B? Does it matter? - Feanor 04:17:06 03/4/25 (0)

Frankly I'm waiting for measurements - Feanor 05:03:45 02/23/25 (6)

RE: Frankly I'm waiting for measurements - Cougar 08:15:57 02/23/25 (5)

JBL 4345 Clone!! - Jon L 09:03:29 02/28/25 (2)

I have all the original JBL... - Cougar 07:32:04 03/1/25 (1)

Kenrick Sound - Jon L 14:05:34 03/3/25 (0)

I hear rumors about Topping quality but ... - Feanor 16:15:16 02/23/25 (1)

RE: I hear rumors about Topping quality but ... - Cougar 18:53:40 02/23/25 (0)

I can see that: Topping products are typically great - Feanor 04:10:12 02/7/25 (138)

Pretty sure this amp is class B not AB - Ralph 08:46:50 02/7/25 (78)

Naim is the most illustrious example of class B amp - Wojciech 20:42:52 02/8/25 (0)

RE: Pretty sure this amp is class B not AB - hahax@verizon.net 20:36:08 02/8/25 (71)

RE: Pretty sure this amp is class B not AB - morricab 07:50:28 02/10/25 (69)

Class B does not have to have a zero crossing artifact. - Ralph 09:34:25 02/11/25 (67)

RE: Class B does not have to have a zero crossing artifact. - morricab 06:57:19 02/12/25 (60)

If a class AB amp has a zero crossing problem - Ralph 09:49:08 02/12/25 (59)

RE: If a class AB amp has a zero crossing problem - morricab 06:30:17 02/13/25 (58)

your statement isn't logical. - Ralph 10:25:30 02/13/25 (57)

RE: your statement isn't logical. - morricab 23:57:49 02/15/25 (56)

RE: your statement still isn't logical. - Ralph 09:04:29 02/17/25 (55)

RE: your statement still isn't logical. - morricab 08:58:43 02/18/25 (52)

FWIW, something you may not know - Ralph 09:48:44 02/27/25 (4)

Interesting - Tre' 12:44:37 03/9/25 (3)

By this metric, all solid state amps are class A. - Ralph 09:52:24 03/10/25 (2)

RE: By this metric, all solid state amps are class A. - Tre' 10:12:53 03/10/25 (1)

RE: By this metric, all solid state amps are class A. - Ralph 10:24:42 03/10/25 (0)

Apparently you've not been reading my posts. - Ralph 09:23:57 02/18/25 (46)

RE: Apparently you've not been reading my posts. - morricab 07:30:36 02/24/25 (8)

So who are you going to believe? - Ralph 08:16:42 02/24/25 (7)

RE: So who are you going to believe? - morricab 08:23:38 02/24/25 (6)

RE: So who are you going to believe? - morricab 03:15:56 02/26/25 (0)

You gotta try harder than that- hearsay isn't evidence. nt - Ralph 08:39:12 02/24/25 (4)

RE: You gotta try harder than that- hearsay isn't evidence. nt - morricab 03:17:42 02/26/25 (3)

If you have the experience it would be first hand. - Ralph 09:48:24 02/26/25 (2)

RE: If you have the experience it would be first hand. - morricab 00:53:52 03/3/25 (1)

Res ipsa loquitur nt - Ralph 10:35:24 03/3/25 (0)

RE: Apparently you've not been reading my posts. - morricab 07:28:04 02/24/25 (21)

Actually no cold water - yet. - Ralph 08:37:27 02/24/25 (20)

RE: Actually no cold water - yet. - morricab 03:00:06 02/26/25 (19)

Apparently you've not been reading my posts. no speculation nt - Ralph 09:31:25 02/26/25 (18)

RE: Apparently you've not been reading my posts. no speculation nt - morricab 00:58:01 03/3/25 (17)

When you use name calling that is abusive on most websites. - Ralph 10:34:05 03/3/25 (16)

RE: When you use name calling that is abusive on most websites. - morricab 00:09:33 03/4/25 (15)

RE: When you use name calling that is abusive on most websites. - Ralph 08:58:48 03/4/25 (14)

RE: When you use name calling that is abusive on most websites. - morricab 01:49:45 03/5/25 (5)

When you attack the patent - Ralph 09:43:55 03/7/25 (4)

RE: When you attack the patent - morricab 11:49:45 03/7/25 (3)

Rolleyes... again, how would you like those results? - Ralph 09:59:31 03/10/25 (2)

RE: Rolleyes... again, how would you like those results? - morricab 10:47:17 03/10/25 (1)

Data posted at link. - Ralph 10:54:50 03/10/25 (0)

RE: When you use name calling that is abusive on most websites. - morricab 01:37:00 03/5/25 (7)

Please do not gaslight me. - Ralph 10:14:38 03/5/25 (6)

RE: Please do not gaslight me. - morricab 07:08:49 03/7/25 (5)

more gaslighting. - Ralph 08:27:44 03/7/25 (4)

If you don't believe me then here is what Doug Self says - morricab 13:07:45 03/7/25 (2)

:) clearly not a blameless amp - Ralph 10:06:05 03/10/25 (1)

RE: :) clearly not a blameless amp - morricab 10:50:44 03/10/25 (0)

RE: more gaslighting. - morricab 11:41:55 03/7/25 (0)

RE: Apparently you've not been reading my posts. - morricab 04:34:35 02/24/25 (14)

Since you have a burr under your saddle - Ralph 08:46:40 02/24/25 (13)

RE: Since you have a burr under your saddle - morricab 03:12:23 02/26/25 (12)

RE: Since you still have a burr under your saddle - Ralph 09:46:32 02/26/25 (11)

RE: Since you still have a burr under your saddle - morricab 01:18:31 03/3/25 (10)

RE: Since you still have a burr under your saddle - Ralph 10:28:52 03/3/25 (8)

RE: Since you still have a burr under your saddle - morricab 00:15:22 03/4/25 (7)

You are objuscating. - Ralph 09:12:51 03/4/25 (6)

RE: You are objuscating. - morricab 01:41:27 03/5/25 (5)

Apparently you're not interested in the truth. - Ralph 10:16:31 03/5/25 (4)

RE: Apparently you're not interested in the truth. - morricab 11:52:33 03/7/25 (3)

Again, for the 5th time now, what will you consider to be data? - Ralph 10:07:08 03/10/25 (2)

RE: Again, for the 5th time now, what will you consider to be data? - morricab 10:51:49 03/10/25 (1)

Data posted at link. - Ralph 10:58:02 03/10/25 (0)

RE: Since you still have a burr under your saddle - morricab 01:22:59 03/3/25 (0)

Does Quasi Complementary... - Cougar 10:42:32 02/17/25 (1)

Too many variables to say - Ralph 13:25:36 02/17/25 (0)

Like Doug Self's "blameless class B" amp of yore? -nt - E-Stat 12:07:42 02/11/25 (5)

I don't think so... nt - Ralph 12:40:15 02/11/25 (4)

Ok - E-Stat 12:46:28 02/11/25 (3)

RE: Thanks! - Ralph 13:37:56 02/11/25 (2)

He seemed content - E-Stat 13:44:12 02/11/25 (1)

Or more like making a digital watch - 13th Duke of Wymbourne 17:49:39 02/11/25 (0)

RE: Pretty sure this amp is class B not AB - Tre' 11:07:54 02/10/25 (0)

Better watch out! - E-Stat 11:34:11 02/9/25 (0)

I guess you're right; thanks for the correction ~n - Feanor 05:06:55 02/8/25 (0)

Perhaps - E-Stat 11:39:53 02/7/25 (3)

it is class D (nt) - Leo loves music 11:59:40 02/7/25 (2)

What leads to to believe - E-Stat 12:11:33 02/7/25 (1)

not class D - Leo loves music 12:23:56 02/7/25 (0)

why it is not a class D? - Leo loves music 05:41:22 02/7/25 (58)

The most common topology - E-Stat 06:46:21 02/7/25 (57)

RE: The most common topology - Tre' 08:05:03 02/7/25 (54)

Schematic sematics - 13th Duke of Wymbourne 21:16:23 02/7/25 (3)

RE: Schematic sematics - 13th Duke of Wymbourne 23:53:00 02/7/25 (1)

The answer to your question is Class AB - Tre' 07:00:34 02/8/25 (0)

RE: Schematic sematics - Tre' 21:43:00 02/7/25 (0)

Sorry but - E-Stat 08:14:20 02/7/25 (40)

Pratt and Whitney - farfetched 15:39:18 03/6/25 (0)

RE: Sorry but - Tre' 19:33:53 02/7/25 (38)

RE: Sorry but - E-Stat 19:37:41 02/7/25 (37)

RE: Sorry but - Tre' 21:27:10 02/7/25 (36)

In days past, class A was a textbook solution to lower distortion, cathode bias always sounds better to me_nT - Cleantimestream 07:55:17 02/11/25 (0)

Ask the professionals - E-Stat 06:38:17 02/8/25 (34)

RE: Ask the professionals - Tre' 06:45:16 02/8/25 (33)

LOL! - E-Stat 06:49:37 02/8/25 (32)

Hope they are not giving each other 'feedback'. That is not allowed :) - 13th Duke of Wymbourne 13:14:53 02/10/25 (4)

Collaboration - E-Stat 15:42:34 02/10/25 (3)

Who are the dudes? - 13th Duke of Wymbourne 16:57:23 02/10/25 (2)

RE: Who are the dudes? - 13th Duke of Wymbourne 17:11:36 02/11/25 (0)

That would be - E-Stat 17:05:25 02/10/25 (0)

I never said that. They know exactly what they are doing. nt - Tre' 07:01:48 02/8/25 (26)

I'm delighted that you acknowledge - E-Stat 07:03:39 02/8/25 (25)

maybe you don't realize this? - Tre' 11:17:07 02/8/25 (0)

even more. - Tre' 07:54:29 02/8/25 (0)

More - Tre' 07:39:54 02/8/25 (0)

RE: I'm delighted that you acknowledge - Tre' 07:22:10 02/8/25 (0)

RE: I'm delighted that you acknowledge - Tre' 07:20:09 02/8/25 (7)

Some clarification - 13th Duke of Wymbourne 13:12:24 02/10/25 (6)

RE: Some clarification - Tre' 20:09:27 02/10/25 (5)

RE: Some clarification - 13th Duke of Wymbourne 18:55:10 02/12/25 (0)

RE: Some clarification - morricab 03:45:17 02/11/25 (3)

RE: Some clarification - Tre' 07:37:47 02/11/25 (2)

Hmm, best sounding class B is McIntosh; unity coupled circuit IS brilliant, however-nT - Cleantimestream 07:47:47 02/11/25 (1)

Vintage Mac unity coupled consumer tube amps - Steve O 02/12/2509:17:08 02/12/25 (0)

You misunderstood me - Tre' 07:13:46 02/8/25 (12)

And that's why they call it AB but it is not truly A - AbeCollins 10:35:38 02/8/25 (11)

Thank you, exactly. - Tre' 11:21:52 02/8/25 (10)

RE: Thank you, exactly. - morricab 01:02:23 02/11/25 (9)

RE: Thank you, exactly. - 13th Duke of Wymbourne 13:23:03 02/11/25 (8)

RE: Thank you, exactly. - morricab 07:08:36 02/12/25 (5)

RE: Thank you, exactly. - 13th Duke of Wymbourne 12:24:48 02/12/25 (4)

If you have a "dead zone" - Steve O 14:50:08 02/12/25 (3)

How do you classify taxonomists? - 13th Duke of Wymbourne 11:18:59 02/13/25 (1)

Hadn't considered that until now - Steve O 15:41:18 02/13/25 (0)

RE: If you have a "dead zone" - morricab 06:37:17 02/13/25 (0)

RE: Thank you, exactly. - Tre' 18:08:12 02/11/25 (1)

RE: Thank you, exactly. - 13th Duke of Wymbourne 12:33:54 02/12/25 (0)

there are some amps - Leo loves music 08:11:47 02/7/25 (8)

RE: there are some amps - Tre' 11:33:15 02/7/25 (7)

your understanding of class A needs update - Leo loves music 11:48:36 02/7/25 (6)

You need to do some reading - Tre' 12:58:32 02/7/25 (5)

why you still don't understand? - Leo loves music 13:03:49 02/7/25 (4)

You are missing my point - Tre' 19:20:02 02/7/25 (3)

Why there are many so called professionals lacking of knowledge? - Leo loves music 02:51:45 02/8/25 (2)

I'm not sure who you are asking about - Tre' 07:06:46 02/8/25 (1)

My brain full of knowledge - Leo loves music 07:15:43 02/8/25 (0)

I understand class AB - Leo loves music 07:05:27 02/7/25 (1)

Honest fumble finger by Bill -nt - E-Stat 15:52:53 02/7/25 (0)

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Vintage Mac unity coupled consumer tube amps - Steve O 02/12/2509:17:08 02/12/25 (0)

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