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OT: Anyone remember this vintage audio amp?
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Chris
Nov 9, 2019, 4:51:34 AM11/9/19
to
Hi all,
Without venturing into 'stupid money territory' the best quality audio by
far I've ever heard came from one particular solid state stereo amplifier
I'd be interested in re-acquainting myself with. Unfortunately I can't
recall the make or model number which is obviously a big barrier to the
desired reunion. However, if I mention some scant details I *do* remember
about it, maybe it will jog someone's memory.
What I _do_ recall is the following:-
It wasn't a Technics branded amp but neither was it one of the budget
brands.
It wasn't of European manufacture (I'm pretty sure it was Japanese).
It was the standard "separates" size of the late eighties/early nineties
and I owned one briefly 16 years ago so it can't be any later than 2003
and probably much earlier.
It had an all black finish.
It was only 60W per channel but punched above its weight in this respect
and produced _the_ most outstanding sound quality.
It was massively heavy on one side so must have had a _very_ substantial
transformer for such a relatively low power amp.
It had an unusual (and very cool) feature I'd never seen before or since
which hopefully will identify it: a quite small volume knob with a little
red LED on one edge of it which lit-up and physically rotated whenever
the remote control unit's volume button was activated.
Does that ring any bells with anyone? I wouldn't mind trying to find
another one!
Without venturing into 'stupid money territory' the best quality audio by
far I've ever heard came from one particular solid state stereo amplifier
I'd be interested in re-acquainting myself with. Unfortunately I can't
recall the make or model number which is obviously a big barrier to the
desired reunion. However, if I mention some scant details I *do* remember
about it, maybe it will jog someone's memory.
What I _do_ recall is the following:-
It wasn't a Technics branded amp but neither was it one of the budget
brands.
It wasn't of European manufacture (I'm pretty sure it was Japanese).
It was the standard "separates" size of the late eighties/early nineties
and I owned one briefly 16 years ago so it can't be any later than 2003
and probably much earlier.
It had an all black finish.
It was only 60W per channel but punched above its weight in this respect
and produced _the_ most outstanding sound quality.
It was massively heavy on one side so must have had a _very_ substantial
transformer for such a relatively low power amp.
It had an unusual (and very cool) feature I'd never seen before or since
which hopefully will identify it: a quite small volume knob with a little
red LED on one edge of it which lit-up and physically rotated whenever
the remote control unit's volume button was activated.
Does that ring any bells with anyone? I wouldn't mind trying to find
another one!
b...@ripco.com
Nov 9, 2019, 6:01:36 AM11/9/19
to
In sci.electronics.repair Chris <c...@noreply.com> wrote:
> It wasn't a Technics branded amp but neither was it one of the budget
> brands.
> It wasn't of European manufacture (I'm pretty sure it was Japanese).
> It was the standard "separates" size of the late eighties/early nineties
> and I owned one briefly 16 years ago so it can't be any later than 2003
> and probably much earlier.
> It had an all black finish.
> It was only 60W per channel but punched above its weight in this respect
> and produced _the_ most outstanding sound quality.
> It was massively heavy on one side so must have had a _very_ substantial
> transformer for such a relatively low power amp.
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
Pretty vague.
> It wasn't a Technics branded amp but neither was it one of the budget
> brands.
> It wasn't of European manufacture (I'm pretty sure it was Japanese).
> It was the standard "separates" size of the late eighties/early nineties
> and I owned one briefly 16 years ago so it can't be any later than 2003
> and probably much earlier.
> It had an all black finish.
> It was only 60W per channel but punched above its weight in this respect
> and produced _the_ most outstanding sound quality.
> It was massively heavy on one side so must have had a _very_ substantial
> transformer for such a relatively low power amp.
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
There were probably other companies but Yamaha had several in the "Natural
Sound" series (that name is probably generic) that had motor driven
mechanical remote-controled volume controls.
They also were lopsided with weight balance.
"produced _the_ most outstanding sound quality" is subjective and could
apply to 1000's of receivers along with the power rating.
Thats the best I can come up with.
-bruce
b...@ripco.com
John-Del
Nov 9, 2019, 6:09:45 AM11/9/19
to
On Saturday, November 9, 2019 at 4:51:34 AM UTC-5, Chris wrote:
> Hi all,
>
> Without venturing into 'stupid money territory' the best quality audio by
> far I've ever heard came from one particular solid state stereo amplifier
> I'd be interested in re-acquainting myself with. Unfortunately I can't
> recall the make or model number which is obviously a big barrier to the
> desired reunion. However, if I mention some scant details I *do* remember
> about it, maybe it will jog someone's memory.
> What I _do_ recall is the following:-
>
> Hi all,
>
> Without venturing into 'stupid money territory' the best quality audio by
> far I've ever heard came from one particular solid state stereo amplifier
> I'd be interested in re-acquainting myself with. Unfortunately I can't
> recall the make or model number which is obviously a big barrier to the
> desired reunion. However, if I mention some scant details I *do* remember
> about it, maybe it will jog someone's memory.
> What I _do_ recall is the following:-
>
> It had an all black finish.
Well, most receivers and separate amplifiers of the 90s through the 2000s were black, so that's not much help...
> It was massively heavy on one side so must have had a _very_ substantial
> transformer for such a relatively low power amp.
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
>
> Does that ring any bells with anyone? I wouldn't mind trying to find
> another one!
But I've seen a Sonys, Pioneers, JVC, Technics, Onkyo, etc. with all black cabinets, heavy on one side, and a probably a red LED in the motorized volume control.
Mike Coon
Nov 9, 2019, 6:22:29 AM11/9/19
to
In article <qq6273$bug$1...@dont-email.me>, c...@noreply.com says...
I still have my JVC amp/receiver/cassette with rotating & flashing
volume control. But clearly not the same as your recollection!
Mike.
volume control. But clearly not the same as your recollection!
Mike.
Phil Allison
Nov 9, 2019, 6:35:44 AM11/9/19
to
Chris wrote:
> Hi all,
( bloody cross poster !!)
From sci.electronics.design:
** Might it be a Proton AM30 or similar ??
https://archiwum.allegro.pl/oferta/integrated-amplifier-proton-am-30-2x80w-better-nad-i7105457465.html
Lotsa weight on LH side, 80wpc, all black, simple, very good specs and almost a top name brand.
.... Phil
Cursitor Doom
Nov 9, 2019, 7:28:38 AM11/9/19
to
On Sat, 09 Nov 2019 11:22:26 +0000, Mike Coon wrote:
> I still have my JVC amp/receiver/cassette with rotating & flashing
> volume control. But clearly not the same as your recollection!
JVC certainly rings a bell... But this was only an amplifier.
> I still have my JVC amp/receiver/cassette with rotating & flashing
> volume control. But clearly not the same as your recollection!
--
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Cursitor Doom
Nov 9, 2019, 7:31:22 AM11/9/19
to
On Sat, 09 Nov 2019 12:28:35 +0000, Cursitor Doom wrote:
> On Sat, 09 Nov 2019 11:22:26 +0000, Mike Coon wrote:
>
>> I still have my JVC amp/receiver/cassette with rotating & flashing
>> volume control. But clearly not the same as your recollection!
>
> JVC certainly rings a bell... But this was only an amplifier.
And on the one I had, the LED was a different colour (green IIRC).
> On Sat, 09 Nov 2019 11:22:26 +0000, Mike Coon wrote:
>
>> I still have my JVC amp/receiver/cassette with rotating & flashing
>> volume control. But clearly not the same as your recollection!
>
> JVC certainly rings a bell... But this was only an amplifier.
Al
Nov 9, 2019, 7:40:33 AM11/9/19
to
On Sat, 09 Nov 2019 11:01:32 +0000, bje wrote:
> There were probably other companies but Yamaha had several in the
> "Natural Sound" series (that name is probably generic) that had motor
> driven mechanical remote-controled volume controls.
>
> They also were lopsided with weight balance.
got to be a Pioneer shirley? They made some massive knobs with lights
> There were probably other companies but Yamaha had several in the
> "Natural Sound" series (that name is probably generic) that had motor
> driven mechanical remote-controled volume controls.
>
> They also were lopsided with weight balance.
that wekt around but usually never in black.
Martin Riddle
Nov 9, 2019, 7:46:22 AM11/9/19
to
On Sat, 9 Nov 2019 09:51:31 -0000 (UTC), Chris <c...@noreply.com>
wrote:
Crown had made some low THD amps back in the 80's
I had a summer gig at Picker, that used them to test position
transducers.
Cheers
wrote:
I had a summer gig at Picker, that used them to test position
transducers.
Cheers
Dan Green
Nov 9, 2019, 9:29:16 AM11/9/19
to
On Sat, 09 Nov 2019 07:46:17 -0500, Martin Riddle wrote:
> Crown had made some low THD amps back in the 80's I had a summer gig at
> Picker, that used them to test position transducers.
Any other pointless reminiscences you'd care to share?
> Crown had made some low THD amps back in the 80's I had a summer gig at
> Picker, that used them to test position transducers.
Robert Baer
Nov 9, 2019, 5:36:27 PM11/9/19
to
Chris wrote:
> Hi all,
>
> Without venturing into 'stupid money territory' the best quality audio by
> far I've ever heard came from one particular solid state stereo amplifier
> I'd be interested in re-acquainting myself with. Unfortunately I can't
> recall the make or model number which is obviously a big barrier to the
> desired reunion. However, if I mention some scant details I *do* remember
> about it, maybe it will jog someone's memory.
> What I _do_ recall is the following:-
>
> It wasn't a Technics branded amp but neither was it one of the budget
> brands.
> It wasn't of European manufacture (I'm pretty sure it was Japanese).
> It was the standard "separates" size of the late eighties/early nineties
> and I owned one briefly 16 years ago so it can't be any later than 2003
> and probably much earlier.
> It had an all black finish.
> It was only 60W per channel but punched above its weight in this respect
> and produced _the_ most outstanding sound quality.
* Up to this point, that reminds me of a Sansui system i had ages ago.
> Hi all,
>
> Without venturing into 'stupid money territory' the best quality audio by
> far I've ever heard came from one particular solid state stereo amplifier
> I'd be interested in re-acquainting myself with. Unfortunately I can't
> recall the make or model number which is obviously a big barrier to the
> desired reunion. However, if I mention some scant details I *do* remember
> about it, maybe it will jog someone's memory.
> What I _do_ recall is the following:-
>
> It wasn't a Technics branded amp but neither was it one of the budget
> brands.
> It wasn't of European manufacture (I'm pretty sure it was Japanese).
> It was the standard "separates" size of the late eighties/early nineties
> and I owned one briefly 16 years ago so it can't be any later than 2003
> and probably much earlier.
> It had an all black finish.
> It was only 60W per channel but punched above its weight in this respect
> and produced _the_ most outstanding sound quality.
> It was massively heavy on one side so must have had a _very_ substantial
> transformer for such a relatively low power amp.
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
Chris
Nov 9, 2019, 6:59:06 PM11/9/19
to
On Sat, 09 Nov 2019 14:36:15 -0800, Robert Baer wrote:
> * Up to this point, that reminds me of a Sansui system i had ages ago.
No, it wasn't Sansui nor Sanyo nor Sharp nor Pioneer nor Proton as Phil
> * Up to this point, that reminds me of a Sansui system i had ages ago.
suggested, none of those nor any of the earlier ones in the thread people
said it might be. I guess I'll probably never know now it's just too long
ago. :(
Thanks for trying to assist, anyway guys.
tabb...@gmail.com
Nov 9, 2019, 9:46:27 PM11/9/19
to
Phil Allison
Nov 9, 2019, 10:17:17 PM11/9/19
to
tabb...@gmail.com wrote:
------------------------
.... Phil
------------------------
>
> google imagines for japanese amp doesn't get you anything?
>
** Might as well Google "cat" and select images in order to find your missing one.
> google imagines for japanese amp doesn't get you anything?
>
.... Phil
Chris
Nov 10, 2019, 8:24:03 AM11/10/19
to
On Sat, 09 Nov 2019 18:46:24 -0800, tabbypurr wrote:
> google imagines for japanese amp doesn't get you anything?
Er, no........
> google imagines for japanese amp doesn't get you anything?
Adrian Caspersz
Nov 13, 2019, 10:54:41 AM11/13/19
to
On 09/11/2019 09:51, Chris wrote:
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
>
Marantz?
> It had an unusual (and very cool) feature I'd never seen before or since
> which hopefully will identify it: a quite small volume knob with a little
> red LED on one edge of it which lit-up and physically rotated whenever
> the remote control unit's volume button was activated.
>
Do a google for "Hifi year book", and start reading from the mid eighties.
Various publications online
http://www.worldofhifi.dk/?page=galleries&album=hele_hi-fi_og_video_revyen-86
--
Adrian C
Winfield Hill
Nov 13, 2019, 12:36:08 PM11/13/19
to
Chris wrote...
but my memory is the volume knob is big. We bought it
about 1993 or so. I assume that many amplifiers have
an LED feature like that.
--
Thanks,
- Win
>
> It had an unusual (and very cool) feature I'd never seen
> before or since which hopefully will identify it: a quite
> small volume knob with a little red LED on one edge of it
> which lit-up and physically rotated whenever the remote
> control unit's volume button was activated.
Our amplifier at home has that feature, and it's black.
> It had an unusual (and very cool) feature I'd never seen
> before or since which hopefully will identify it: a quite
> small volume knob with a little red LED on one edge of it
> which lit-up and physically rotated whenever the remote
> control unit's volume button was activated.
but my memory is the volume knob is big. We bought it
about 1993 or so. I assume that many amplifiers have
an LED feature like that.
--
Thanks,
- Win
Chris
Nov 14, 2019, 6:34:33 PM11/14/19
to
OK, thanks to everyone who responded. I'd thought that volume feature
would be unique to one manufacturer to be honest - I've never seen it on
any other amp. I think now someone mentioned JVC and that *does* ring a
bell. It's just that I'd never equated JVC with the best of the amps of
that era. Looks like I may have to review my prejudices.
The search goes on...
would be unique to one manufacturer to be honest - I've never seen it on
any other amp. I think now someone mentioned JVC and that *does* ring a
bell. It's just that I'd never equated JVC with the best of the amps of
that era. Looks like I may have to review my prejudices.
The search goes on...
Amanda Riphnykhazova
Mar 27, 2020, 5:49:14 PM3/27/20
to
If it was head and shoulders better than all the rest, It was probably a Nakamichi. mine has that light feature you mention, though you may be concertinaing time. It is quite a bit newer than you remember
amdx
Mar 27, 2020, 7:54:03 PM3/27/20
to
through several hundred pictures of amplifiers, one might pop out at you.
Mikek
amdx
Mar 27, 2020, 8:02:55 PM3/27/20
to
poor amplifier for the speakers not to be the limiting factor.
IMHO, Mikek
Winfield Hill
Mar 28, 2020, 9:51:24 AM3/28/20
to
amdx wrote...
feature, my wife's parents had one in Florida.
--
Thanks,
- Win
>
> On 11/9/2019 3:51 AM, Chris wrote:
>>
>> It had an unusual (and very cool) feature I'd never seen
>> before or since which hopefully will identify it: a quite
>> small volume knob with a little red LED on one edge of it
>> which lit-up and physically rotated whenever the remote
>> control unit's volume button was activated.
Too bad, actually quite a few amplifiers had that
> On 11/9/2019 3:51 AM, Chris wrote:
>>
>> It had an unusual (and very cool) feature I'd never seen
>> before or since which hopefully will identify it: a quite
>> small volume knob with a little red LED on one edge of it
>> which lit-up and physically rotated whenever the remote
>> control unit's volume button was activated.
feature, my wife's parents had one in Florida.
--
Thanks,
- Win
Lucifer
Mar 30, 2020, 6:11:44 AM3/30/20
to
On 28 Mar 2020 06:51:12 -0700, Winfield Hill <winfie...@yahoo.com>
wrote:
My current amp has that feature.
wrote:
Amanda Riphnykhazova
Jun 14, 2020, 10:19:48 AM6/14/20
to
> >> On 11/9/2019 3:51 AM, Chris wrote:
> >>>
> >>> It had an unusual (and very cool) feature I'd never seen
> >>> before or since which hopefully will identify it: a quite
> >>> small volume knob with a little red LED on one edge of it
> >>> which lit-up and physically rotated whenever the remote
> >>> control unit's volume button was activated.
> >
> > Too bad, actually quite a few amplifiers had that
> > feature, my wife's parents had one in Florida.
>
> My current amp has that feature.
Tim R
Jun 16, 2020, 8:59:06 AM6/16/20
to
On Friday, March 27, 2020 at 8:02:55 PM UTC-4, amdx wrote:
> >
>
> Marantz or Macintosh? But really in the end, you have to have a pretty
> poor amplifier for the speakers not to be the limiting factor.
>
> IMHO, Mikek
This. Given the effects of speakers, room acoustics, and whatever you're using for input, the quality of the amplifier is likely down in the undetectable range.
> >
>
> Marantz or Macintosh? But really in the end, you have to have a pretty
> poor amplifier for the speakers not to be the limiting factor.
>
> IMHO, Mikek
But, consider another complicating factor. The spectral response of your ears has to be vastly different from what it was a couple decades back. If you found that identical amp somehow preserved without any degradation, I doubt it would sound the same, now that so much of your high frequency hearing has disappeared.
peterw...@gmail.com
Jun 16, 2020, 10:53:04 AM6/16/20
to
Amplifiers..... I have waited this long. But here goes:
a) With a very broad brush, the single significant characteristic of any given amplifier is Headroom. How much unclipped power can it deliver, for how long.
b) Speaker power ratings are not based on what an amplifier can deliver, but on how much power the speaker can absorb continuously over what spectrum. So a speaker rated at 50 amps (theoretically) can absorb 50 watt of power continuously of a standard spectrum. A 50-watt continuous sine wave, for instance would pretty much melt any driver it was directed to in short order.
c) The single most significant aspect of any signal is Peak-to-Average. So, most (not all) heavy metal has a P/A of about 10 dB. Well recorded classical music will have a P/A of about 20 dB, with some (Saint-Saens Organ Symphony) as much as 30 dB (again, well recorded).
d) An amplifier, theoretically, is not to add or remove artifacts to the signal. Most, if even reasonably well designed, achieve that status fairly well.
Cutting to the chase: I keep and use regularly, three significantly different styles of speakers. They are all 'rated' at about 50 watts. They are all relatively inefficient at 85 dB at one meter at one watt. Two of the three pairs are driven by what is best described as brute-force amps (more than 200 wpc/rms) and are in large rooms. The last is a sub/sat system driven by a 17 wpc/rms tube amp in a very small room.
In every case, the limitation on the volume I can achieve is the amplifier headroom, not the speakers. The one brute-force amp is *adequate* to drive the Maggies playing the aforementioned Organ Symphony at below-ear-bleed volumes. It would clip if played any louder, whereas the speakers would be fine but-for the clipping (and for the record, most solid-state amps clip badly). The baby Dynaco (ST-35) does well enough at far-below ear-bleed levels in a small room. As it is tube, I do not worry about clipping damage if I go over-the-top on volume.
The AR3as make up the third-most-used set, also driven by a brute-force amp, and also do nicely in a medium room. And, yes, I do moderate so as not to clip.
Cutting to the chase, headroom is singularly critical to decent sound reproduction.
Peter Wieck
Melrose Park, PA
a) With a very broad brush, the single significant characteristic of any given amplifier is Headroom. How much unclipped power can it deliver, for how long.
b) Speaker power ratings are not based on what an amplifier can deliver, but on how much power the speaker can absorb continuously over what spectrum. So a speaker rated at 50 amps (theoretically) can absorb 50 watt of power continuously of a standard spectrum. A 50-watt continuous sine wave, for instance would pretty much melt any driver it was directed to in short order.
c) The single most significant aspect of any signal is Peak-to-Average. So, most (not all) heavy metal has a P/A of about 10 dB. Well recorded classical music will have a P/A of about 20 dB, with some (Saint-Saens Organ Symphony) as much as 30 dB (again, well recorded).
d) An amplifier, theoretically, is not to add or remove artifacts to the signal. Most, if even reasonably well designed, achieve that status fairly well.
Cutting to the chase: I keep and use regularly, three significantly different styles of speakers. They are all 'rated' at about 50 watts. They are all relatively inefficient at 85 dB at one meter at one watt. Two of the three pairs are driven by what is best described as brute-force amps (more than 200 wpc/rms) and are in large rooms. The last is a sub/sat system driven by a 17 wpc/rms tube amp in a very small room.
In every case, the limitation on the volume I can achieve is the amplifier headroom, not the speakers. The one brute-force amp is *adequate* to drive the Maggies playing the aforementioned Organ Symphony at below-ear-bleed volumes. It would clip if played any louder, whereas the speakers would be fine but-for the clipping (and for the record, most solid-state amps clip badly). The baby Dynaco (ST-35) does well enough at far-below ear-bleed levels in a small room. As it is tube, I do not worry about clipping damage if I go over-the-top on volume.
The AR3as make up the third-most-used set, also driven by a brute-force amp, and also do nicely in a medium room. And, yes, I do moderate so as not to clip.
Cutting to the chase, headroom is singularly critical to decent sound reproduction.
Peter Wieck
Melrose Park, PA
Tim R
Jun 16, 2020, 11:12:29 AM6/16/20
to
On Tuesday, June 16, 2020 at 10:53:04 AM UTC-4, pf...@aol.com wrote:
> d) An amplifier, theoretically, is not to add or remove artifacts to the signal. Most, if even reasonably well designed, achieve that status fairly well.
>
> d) An amplifier, theoretically, is not to add or remove artifacts to the signal. Most, if even reasonably well designed, achieve that status fairly well.
>
(and for the record, most solid-state amps clip badly). The baby Dynaco (ST-
>
>
> Cutting to the chase, headroom is singularly critical to decent sound reproduction.
>
Okay, trying to make sense for my uses, I think you're saying:
>
1. most amps don't distort
2. unless you use enough power to clip
and I never do, so for my purposes, amplifiers are not the weak point.
3. But if you want to play really loud, which you might need to do when your music has a wide dynamic range, you need lots of power in the amp.
And the corollary might be that given enough watts per channel, decent amplifiers are equivalent.
Did I get that right?
peterw...@gmail.com
Jun 16, 2020, 12:02:08 PM6/16/20
to
Pretty much got it right, yes.
Amplifiers are very seldom the weak point, unless driven to clipping on a regular basis.
Amplifiers are very seldom the weak point, unless driven to clipping on a regular basis.
amdx
Jun 21, 2020, 7:57:39 AM6/21/20
to
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Les Cargill
Jun 21, 2020, 11:13:05 AM6/21/20
to
amdx wrote:
> On 11/9/2019 4:40 AM, Al wrote:
>> On Sat, 09 Nov 2019 11:01:32 +0000, bje wrote:
>>
>>> There were probably other companies but Yamaha had several in the
>>> "Natural Sound" series (that name is probably generic) that had motor
>>> driven mechanical remote-controled volume controls.
>>>
>>> They also were lopsided with weight balance.
>>
>> got to be a Pioneer shirley? They made some massive knobs with lights
>> that wekt around but usually never in black.
>>
>
> Adcom?
>
No, it was Yamaha - the amps had "current mirror" silkscreened on them.
> On 11/9/2019 4:40 AM, Al wrote:
>> On Sat, 09 Nov 2019 11:01:32 +0000, bje wrote:
>>
>>> There were probably other companies but Yamaha had several in the
>>> "Natural Sound" series (that name is probably generic) that had motor
>>> driven mechanical remote-controled volume controls.
>>>
>>> They also were lopsided with weight balance.
>>
>> got to be a Pioneer shirley? They made some massive knobs with lights
>> that wekt around but usually never in black.
>>
>
> Adcom?
>
It's the same basic line as the NS10s came from - NS being "Natural
Sound" and 10 being the diameter of the bass driver in inches.
--
Les Cargill
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