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It's meant for bass, so not really that excessively loud.
I've never actually seen one in person - but even for me (especially these days… I'm getting on a bit now), too heavy to carry around, that's why it comes with its own trolley! For the head .
Although according to the spec, it's a few pounds lighter than an Ampeg SVT - those are brutal, even just getting one onto its own cabinet is a two-man job, safely.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
https://reverb.com/fr/news/the-most-powerful-tube-amp-of-all-time-behind-the-fender-400-ps?utm_campaign=1612019_blogfrfennder400ps&utm_medium=FB&utm_source=FB
http://timeelect.com/400-faq.htm
http://timeelect.com/
I've only ever seen one of these.
It requires 3 speaker cabs to get full power, and I only had access to one, so I never tested it sonically at full power although it was doing over 400W into a dummy load.
It was heavy......
I fixed a Marshall bass head a few years ago. 6 X EL34 IIRC but might have been 6550? The fault was due to an attempt to put about 10 amps through a 6A rated 6mm connector, PCB burned up didntit.
That was 'quite' heavy, had a fan in the back.
I see from the map that the Fender had V low Z drive to the OP valves so, pulled grid current?
VERY high fideliteee!
I've never seen a 2000 personally but I've worked on, and borrowed for a while, a 2001 - a huge-sounding thing, a bit too complex for its own good really but brilliant with a Rickenbacker because you can use the two separate channels with the stereo output of the bass. Weighed an absolute ton.
I briefly had a Trace Elliot V8 as well, and worked on two or three more - 400W 8xKT88. Poorly-made and unreliable though.
The other real beast I've worked on is the Hiwatt 400 - only 6xKT88, but operated at extremely high voltages, and the two I've worked on would both produce roughly 445W at the point of clipping. I thought these were probably the most powerful valve audio amps (production, anyway), but the Fender apparently just beats it.
John Chambers built a prototype 1KW amp using transmitter valves, I think.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
http://www.r-type.org/pdfs/kt88.pdf
How were they operated, taking into consideration the attached pdf KT88 data-sheet ?
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Bonza !
DJH83004 (and others), is it the case that the valves were in push-pull configuration to get this crazy output level ?
i was doing some amp electronics 101 reading there:
http://www.valvewizard.co.uk/se.html
http://www.valvewizard.co.uk/pp.html
http://www.aikenamps.com/index.php/what-do-the-terms-push-pull-and-single-ended-mean
Laney Nexus tube bass - specification:
http://www.laney.co.uk/products/nexus-tube/
schematic (this has the 8 x KT-88)
http://www.thetubestore.com/lib/thetubestore/schematics/Laney/Laney-Nexus-Tube-Nxt-Bias-Schematic.pdf
http://www.thetubestore.com/lib/thetubestore/schematics/Fender/Fender-400PS-Schematic.pdf
It seems an early one but doesn't mention 6550s....010309s (6 off) ?
Also, see the linked discussion thread - refer to comments made by CoolBlueGlow
http://www.tdpri.com/threads/fender-400ps-on-a-diet.315591/
He notes a slightly different set of tubes in comparison to the schematic above - but i assume they're replacement valve types that can be used ?
This does become a problem when servicing these super-high-power amps - the quality of modern-production valves is rarely as good as the original *standard* types, let alone the special order ones.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein