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Old 13th April 2013, 03:41 PM   #1
n3szd is offline n3szd  United States
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Default How much spl can a triode take?

I'm only asking because I don't know. Everything has a breaking point, I want to make a 10w set (dual mono's), but am worried that due to spl something bad might happen to the tubes...
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Old 13th April 2013, 03:54 PM   #2
SY is offline SY  United States
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If your SPL is high enough to damage tubes, your eardrums would have already departed, mooting the issue.

The main concern is microphonics, that is, a tendency of some tubes to act as vibration sensors and hence cause undesired feedback at certain frequencies. If you keep your amps behind your speakers or several feet remote from them, you're unlikely to have an issue unless you have some really poor tubes in it.
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Old 13th April 2013, 04:00 PM   #3
n3szd is offline n3szd  United States
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Quote:
Originally Posted by SY View Post
If your SPL is high enough to damage tubes, your eardrums would have already departed, mooting the issue.

The main concern is microphonics, that is, a tendency of some tubes to act as vibration sensors and hence cause undesired feedback at certain frequencies. If you keep your amps behind your speakers or several feet remote from them, you're unlikely to have an issue unless you have some really poor tubes in it.
as far as I remember low bass does not hurt your hearing like high freq. Most of my spl has to so with a ton of low.. Yes the highs make my ears ring.. Everything has a resonate frequency, my 2500 sq ft house as testament. It really feels like it would break the filaments, I can't even see straight typing this....
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Old 13th April 2013, 04:08 PM   #4
JMFahey is offline JMFahey  Argentina
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Quote:
I can't even see straight typing this....
A 10W amplifier shakes your 2500 sq ft house foundations and walls so much that you almost can't type?
Amazing.
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Old 13th April 2013, 04:10 PM   #5
SY is offline SY  United States
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Quote:
Originally Posted by n3szd View Post
It really feels like it would break the filaments
Unlikely. I've never lost one this way and my system does not lack for lows... Remember, there's lots of tube bass guitar amps out there.
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Old 13th April 2013, 04:17 PM   #6
n3szd is offline n3szd  United States
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Sorry for the bad reply, Im running peak bass of 6000+ watts in my basement (10x20ft room). I honestly at times sucks the air out of my lungs and I have to leave. It shakes you so hard you cannot type. I apprecieate the response, so Im good!
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Old 13th April 2013, 04:27 PM   #7
n3szd is offline n3szd  United States
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I didn't know they had a limit, thanks!! I'll make a 10w set dual mono.. I've been cars at 140db, this setup you cannot compare, way more. My printer almost fell off of my desk, and those svs's walk off, yep 100# and they leave the ground and wander. I appreciate the help, another project 300 tubes...

Last edited by n3szd; 13th April 2013 at 04:31 PM.
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Old 13th April 2013, 04:36 PM   #8
n3szd is offline n3szd  United States
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I can actually feel the boom boom 100 ft away outside the house with the windows closed. My neighbor called me more than once to complain... Im in the basement, not first floor.. Feel it...
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Old 13th April 2013, 04:42 PM   #9
n3szd is offline n3szd  United States
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maybe read my pass labs writeup. aleph3 dc turbo project
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Old 13th April 2013, 04:46 PM   #10
n3szd is offline n3szd  United States
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What I do have is insane, why I asked the question, well My body can't take it, I don't know if a tube can. I can't breathe ttyl
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