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PostPosted: Sun Jun 10, 2018 2:03 pm 
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I have a Leak Stereo 20 that I love but it’s a little underpowered for most of the speakers I use. Is there anything that gets me the el84 sound but with at least 25 wpc. I’ve tried el34, and it isn’t the same.


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PostPosted: Sun Jun 10, 2018 2:22 pm 
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try this one...https://www.manley.com/hifi/mist/


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PostPosted: Sun Jun 10, 2018 2:29 pm 
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Looks like the ticket. What about the MAHI? It looks like it has about the same output power? I don’t really want an integrated.


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PostPosted: Sun Jun 10, 2018 2:32 pm 
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7189, the real thing, that is. B+ can be nearly 100V more than an EL84, for a few more watts. I stress, a REAL 7189, not a relabeled EL84, or a Russian el84 that has a slightly different spec and a slightly higher tolerance for a high b+ rail compared to a stock EL84.

Next up, considered the ultimate audio amplifier tube (in the non single ended category), is the 7591. the only one that will match the sheer beauty of the EL84.. or comes closest to it.

Squarely in a the 25-28 wpc range in push pull configuration. With decent current.

Difficult amp to come by. Heathkit made one, the AA-100. The Heathkit is a good choice as they are peerless transformers, IIRC.

Sold well under proper market value for a long time, as the 7591 is not a well known tube, not really manufauctured as a properly made new tube, and all the NOS 7591's are long gone.

IF they are finally making REAL 7591 tubes, not pin reconfigured tubes of other origin (which results in high distortions and bad peaks, and not the proper tonality you are there for), I might break my aa-100 out, after 25 years of being parked.

look at the price for assorted unmatched singles:

https://www.thetubestore.com/nos-7591

used to be able to pick these up for $200:

http://www.canuckaudiomart.com/details/ ... amplifier/

https://www.hifishark.com/model/heathkit-aa-100 (switch to expired ads, as there are no current sales on the AA-100)

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PostPosted: Sun Jun 10, 2018 2:51 pm 
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Ok, that’s a tall order on the ultra rare tubes and amps. I’m a bit of a tube novice and I’m looking for something relatively easy to find and replenish.

It seems like you have a bunch of el84 experience. For interests sake which el84 amp have you enjoyed best


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PostPosted: Sun Jun 10, 2018 3:08 pm 
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Hard to top a pair of vintage Sherwood S1000-II's:

https://www.radiomuseum.org/r/sherwood_s_1000_ii.html

They're reasonably priced and sound great. Back then Sherwood was a company owned and run by electrical engineers that put sound ahead of profit. They invented stereo FM radio as we know it today.

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Collecting vintage tube Pilot (Pilotone) HiFi gear.


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PostPosted: Sun Jun 10, 2018 3:20 pm 
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A couple come to mind here.

On the used market, probably have to look for a while. Beard P35 MkII

Attachment:
beardp35.jpg
beardp35.jpg [ 90.47 KiB | Viewed 1721 times ]


A current production amp: Music Reference RM-10 which is advertised at 35 wpc.

Attachment:
MusicReferenceRM10.jpg
MusicReferenceRM10.jpg [ 120.52 KiB | Viewed 1721 times ]


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PostPosted: Sun Jun 10, 2018 3:34 pm 
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malthuse wrote:
Ok, that’s a tall order on the ultra rare tubes and amps. I’m a bit of a tube novice and I’m looking for something relatively easy to find and replenish.

It seems like you have a bunch of el84 experience. For interests sake which el84 amp have you enjoyed best



apparently new 7591's are finally being made, but not many of them. I showed you the nos stuff for shock value.

https://www.thetubestore.com/power-tube ... tube-types

good el84's cost money too.

the sweet sound of the el84's you've heard is partially due to the effect of having only one tube per leg of the signal, ie, push pull circuit with two tubes only.

Higher power in EL84 circuits can only come from doubling up the tubes in the output stage. And some of the musicality and sweetness goes away in any amp that uses more than the two tubes or two transistors per channel.

And those amps with like 24 tubes per channel? wouldn't touch them with a barge pole.

I'm thinkin' the KT150 as a single pair or even single ended.

https://www.thetubestore.com/tung-sol-kt150

Of course, how they sound, that info is still thin on the ground.

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PostPosted: Sun Jun 10, 2018 3:50 pm 
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Actually Tung Sol makes a reissue 7591 that is very close to the original old stock.
https://www.thetubestore.com/tung-sol-7591a T


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PostPosted: Sun Jun 10, 2018 4:01 pm 
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my sweet spot with EL 84 tube is old VTL TT25 but as it says it is triode 25W....that is why I showed you the current VTLs....but for the sheer beauty of the sound the TT is un-beatable...


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PostPosted: Sun Jun 10, 2018 4:56 pm 
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Teo Audio wrote:
malthuse wrote:
Ok, that’s a tall order on the ultra rare tubes and amps. I’m a bit of a tube novice and I’m looking for something relatively easy to find and replenish.

It seems like you have a bunch of el84 experience. For interests sake which el84 amp have you enjoyed best



apparently new 7591's are finally being made, but not many of them. I showed you the nos stuff for shock value.

https://www.thetubestore.com/power-tube ... tube-types

good el84's cost money too.

the sweet sound of the el84's you've heard is partially due to the effect of having only one tube per leg of the signal, ie, push pull circuit with two tubes only.

Higher power in EL84 circuits can only come from doubling up the tubes in the output stage. And some of the musicality and sweetness goes away in any amp that uses more than the two tubes or two transistors per channel.

And those amps with like 24 tubes per channel? wouldn't touch them with a barge pole.

I'm thinkin' the KT150 as a single pair or even single ended.

https://www.thetubestore.com/tung-sol-kt150

Of course, how they sound, that info is still thin on the ground.

This makes sense. So I may be resigned to low watts. I have some new speakers at higher sensitivity at 89db. Still a little low for the Leak though.

-- 11 Jun 2018 02:04 --

libor wrote:
my sweet spot with EL 84 tube is old VTL TT25 but as it says it is triode 25W....that is why I showed you the current VTLs....but for the sheer beauty of the sound the TT is un-beatable...

Ok, I googled the vtl tt25 and I think I see where you’re coming from. I found a pair of “VTL Manley Tiny Triodes”, and a quick google shows me they were the same company at some point. Does the MAHI improve on the tt25 or are they different?


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PostPosted: Sun Jun 10, 2018 5:48 pm 
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Sonic Frontiers made an EL84 amp under the Anthem name. It has two pairs of EL84 tubes per channel, for 40wpc, if memory serves.


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PostPosted: Sun Jun 10, 2018 6:07 pm 
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Quote:
..Does the MAHI improve on the tt25 or are they different?


when I heard the Mahi I did not feel the same excitement as living with the TT25 long time ago, but my memory may be low and deprived over the years...too much of Balvenie, perhaps?


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PostPosted: Sun Jun 10, 2018 6:53 pm 
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Lutherton wrote:
Sonic Frontiers made an EL84 amp under the Anthem name. It has two pairs of EL84 tubes per channel, for 40wpc, if memory serves.



if its the integrated 1 yer referring to she was only a 25 watter

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PostPosted: Mon Jun 11, 2018 5:37 am 
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malthuse wrote:
I have a Leak Stereo 20 that I love but it’s a little underpowered for most of the speakers I use. Is there anything that gets me the el84 sound but with at least 25 wpc. I’ve tried el34, and it isn’t the same.


http://www.finaleaudio.com/el84/
This one is not 25 wpc but 20 wpc, I own one and I am very happy with the performance I am getting


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