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The Most Powerful Tube Amplifier Ever Built

198.8.32.65

Posted on November 2, 2009 at 11:43:03
Posts: 150
Location: Harrisburg, PA
Joined: June 27, 2008
For $55,000/pair they better be...

No relations to whatsoever.

 

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RE: The Most Powerful Tube Amplifier Ever Built, posted on November 2, 2009 at 12:12:41
Doc B.
Manufacturer

Posts: 5911
Location: Pacific Northwest
Joined: October 6, 1999
Maybe SET, but certainly not tube amps in general. I've had 250W class B PP amps and IIRC Paul Weitzel's big monsters were 400W each. Here's a 1000W project -

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 2, 2009 at 12:35:40
LinuxGuru
Audiophile

Posts: 437
Location: European Union
Joined: November 11, 2008
I have seen in Russian radio magazine 1200W tube amplifier with GU81M output stage and 3.5kV B+ voltage. Output transformer size is 26x36 sm. Fillament current for each GU81M is 11.5A. A real MONSTER !

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 2, 2009 at 12:41:10
Tom Bavis
Audiophile

Posts: 733
Location: Upstate NY
Joined: May 25, 2007
I've worked on 1000, 10,000, 50,000W tube amplifiers... but they were RF, not audio. How about the one on my website below? (by the way - "honker" refers to the claimed frequency response... sufficient for "Now hear this - Man your battle stations...)

 

Complete marketing BS!, posted on November 2, 2009 at 12:56:50
Allen Wright
Manufacturer

Posts: 5652
Location: Schaffhausen
Joined: January 31, 2002
There are any number of amplifiers on the current hifi market with more output power than these things.

VTL just to name one brand.

Regards, Allen

 

Any AM Radio Station!, posted on November 2, 2009 at 13:08:48
gusser
Audiophile

Posts: 1837
Location: So. California
Joined: September 6, 2006
Any AM radio station that is using high level modulation has an audio amplifier that is roughly the power of the station RF output. High level AM modulation uses an audio amplifier to modulate the DC to the RF final.

 

Not even close, posted on November 2, 2009 at 13:56:58
Donald North
Manufacturer

Posts: 1136
Joined: February 8, 2001

Here's a high power brute: Shoreline 800

Donald North

 

No kidding...:), posted on November 2, 2009 at 14:04:00
PakProtector
Audiophile

Posts: 10875
Joined: May 14, 2002
Consider the Altec 260; PP 813 for one. Now in the Eimac-final territory, one could do nutsy power with a pair of 304TL. I'm thinking 300W would be quite easy in AB1...:)
cheers,
Douglas

Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.

 

These can't be close to old PA systems?, posted on November 2, 2009 at 14:13:29
FenderLover
Bored Member

Posts: 8306
Joined: July 31, 2007
Contributor
  Since:
May 17, 2009
Like ones at Yankee Stadium? Can they?

 

How soon they forget.... MC3500 ? and several others (nt), posted on November 2, 2009 at 14:40:22
Door Nail
Audiophile

Posts: 745
Joined: August 27, 2005
nt

 

Only 350 watts?, posted on November 2, 2009 at 14:51:25
E-Stat
Audiophile

Posts: 19570
Joined: May 12, 2000
Contributor
  Since:
April 5, 2002
That's the output of my mid-range VTL MB-450s. OTOH, A Wotan monoblock weighs 250lb, uses twenty-four 6550/KT-88 outputs and produces over a kilowatt.



rw

 

Not true..., posted on November 2, 2009 at 15:22:06
SET tube


 
As example, during 60s, 70s, chinese made hundreds of models of tube audio amps > 200 watts...
see the link below, click the "China Circuits"

 

It's single ended folks ;^), posted on November 2, 2009 at 17:18:18
diamondsouled
Audiophile

Posts: 878
Location: The Great White North
Joined: May 2, 2007

Cheers

Lar

http://www.nataudio.com/products/Magma/Magma.htm

 

Even single ended..., posted on November 2, 2009 at 17:29:02
Jim Dowdy
Manufacturer

Posts: 1272
Location: western North Carolina
Joined: July 22, 2000
Josh was well beyond 200 SE Watts at VSAC 2003:

 

Holy freakin moly!, posted on November 2, 2009 at 19:06:30
diamondsouled
Audiophile

Posts: 878
Location: The Great White North
Joined: May 2, 2007
;^)

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 2, 2009 at 21:02:27
hahax@verizon.net
Audiophile

Posts: 1985
Location: New Jersey
Joined: March 22, 2006
Melos built triode mono blocks advertised at 400 watts(4 output tubes) but were actually capable of much more. Early models were well over 700 watts.

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 2, 2009 at 22:05:49
becketma@yahoo.com
Audiophile

Posts: 1344
Location: Sunny Tucson AZ
Joined: May 21, 2007
I've got a triode, 8877 that will do 2K out, 24 hours a day. Its RF tho.

A few years ago, I bought a BIGGER! plate xformer for it--seem to remember it being 8KV. Something about just 4KV that gives me pause. I never installed the xformer. But, its OK, cause the thing is simply a thing of beauty to look at.

Best
Bob
"He (R.M. Nixon) was a foul caricature of himself, a man with no soul, no inner convictions, with the integrity of a hyena, and the style of a poison toad." H. S. Thompson

 

NOS design - wonderful, posted on November 3, 2009 at 09:10:02
'Bout time someone dug out some of those NOS designs!

WW

 

RE: Even single ended..., posted on November 3, 2009 at 09:32:02
Posts: 674
Joined: June 16, 2006
I had no idea anyone had built an amp with the GM100's.
I know Jim de Kort experimented with them some but as far as I know,
never went much farther.

I was tempted to buy a pair of them a few years ago but never did.

Cool amp, how did it sound?

Cal

 

Here's a post from the same thread..., posted on November 3, 2009 at 11:28:24
Tom
Audiophile

Posts: 1582
Joined: February 27, 2000
that describes an amp that just "might be" the "most powerful" (Class A anyway).....

(I wouldn't enter the same room with this thing without weating a fire suit.
)

Evil-E ยท 67 weeks ago
A little place in North Hollywood made a nice Class-A tube amp back in in the 1970's that used two Eimac 1000Z tubes and would easily top 1.5KW rms output!
Of course it had a plate transformer that weighed 200 lbs, a 2nd
transformer (for the filaments) that added another 40 lbs to the total..
..I think they were called Kenton Audio Laboratory..and the amp was
dubbed "The Theater Reference Amp". We had a pair of them at KPFK-FM studios in the listening room..driving a pair of stadium-series (double 15" drivers) Klipsche Horns. Sounded great!

 

RE: Any AM Radio Station!, posted on November 3, 2009 at 13:05:10
Michael Samra
Dealer

Posts: 31841
Location: saginaw michigan
Joined: January 30, 2005
Contributor
  Since:
June 24, 2005
Guesser
The audio output power is usually 50% of the RF output as thats all thats needed with dual side band and carrier. Thats the way all of my AM transmitters are running but then I am using plate modulation.

Honest amplification is better than excessive 2nd order distortion anytime.

 

Only with a pure sinewave., posted on November 3, 2009 at 13:17:58
gusser
Audiophile

Posts: 1837
Location: So. California
Joined: September 6, 2006
Real audio including including speech can on paper require more audio power than RF drive but practically speaking equal power is enough.

 

RE: Even single ended..., posted on November 3, 2009 at 18:35:56
Ed Sawyer
Audiophile

Posts: 2421
Joined: November 3, 2000
it sounded pretty good, the whole experience was pretty much over the top. There wasn't much in the room to compare with it, but one just basked in the glow and didn't worry about it. ;-)

the amp that was the start of this thread is a poser amp for sure.

the real he-man Eimac 450TL amps to reckon with were those that Orey built back a while ago. Never saw them but the stories were outrageous! 450TL driving a push-pull pair of 450TLs (per channel)... completely insane!

LOL

-Ed

 

RE: Even single ended..., posted on November 4, 2009 at 12:53:04
Posts: 674
Joined: June 16, 2006
Hi Ed

That's cool, I guess Ill have to attend one of these shows
sometime. Sounds like fun.

Cal

 

I never laughed so hard in my life..., posted on November 4, 2009 at 13:23:12
Ivan303
Audiophile

Posts: 30762
Location: Cadiere d'azur FRANCE - San Francisco
Joined: February 26, 2001
as when Orey told of the PP 450TL amp which went "China syndrome" through the floor of the trailer he was living in when one of the output transformers decided to arc over and cause a plasma fire.






 

Made my day...."China syndrome", I can just picture it! LOL !8-))....(nt.), posted on November 4, 2009 at 13:40:28
twystd
Audiophile

Posts: 2205
Location: Austin,Texas
Joined: December 9, 2000
.

 

ok, again..., posted on November 6, 2009 at 19:02:11
LineArrayNut
Audiophile

Posts: 1947
Location: Tenn.
Joined: December 10, 2002



they're conservatively rated at 200 watts each 1.5% THD, more like 340 at 4% THD wide bandwidth approaching 20 to 20 at rated power, 40 to 18 at peak and ran for 30 years straight - try that with sand, lol!
I *like* the loudness button!

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 6, 2009 at 19:09:52
AudioDoctor
Audiophile

Posts: 1581
Location: Minnesota
Joined: March 25, 2008
Uhmmmmmmm, yeah...

"450 watts per channel in tetrode;
200 watts per channel in triode "
Happiness is a clean record, and warm tubes!

 

RE: Not even close, posted on November 22, 2009 at 21:12:49
markc2
Audiophile

Posts: 45
Location: Pflugerville
Joined: August 20, 2007
WOW an other brand I have never heard of. Quite a trip. Thanks

No where near that, but I love the way they look, but still put out 150W per channel.

 

RE: The Most Powerful Tube Amplifier Ever Built, posted on November 23, 2009 at 04:37:29
markc2
Audiophile

Posts: 45
Location: Pflugerville
Joined: August 20, 2007
Mcintosh needs to build this :-)

Mark

 

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