What are peoples tonal experiences with different power tubes?

Young Angus

Kometose Tonologist
For example, EL34's vs. 6L6's vs. 5881's vs. "whatevers".

Im just trying to learn as much as i can about tube characteristics here. :D
 
Re: What are peoples tonal experiences with different power tubes?

Young Angus said:
For example, EL34's vs. 6L6's vs. 5881's vs. "whatevers".

Im just trying to learn as much as i can about tube characteristics here. :D

6L6s and 5881 are pretty close in tone these days...A 5881 used to be a stricter more tolerant 6L6 made to work in military radio equipment...

The 6L6,5881 tubes are generally the Fender/Mesa tube in that the tone is warm,full,and round,with more overall headroom...

The EL34 is a British tube that replaced the 5881 because it was a cheaper tube for Marshall to buy in large quantity...This tube has a nice compressed tone about it when driven hard...Mids are more prominent...This tube has a warm tone also but the tone could be described as a "thonk" instead of a "thunk" like the 6L6 tube above....If you're after the whole british vibe then the EL34s are the tubes to use..

I Like the round and headroomy clean tones I get from my Fender amps with 6L6s and I Love the crunchy,midrange,cutting tones of the EL34s...Both are great in the right amp...
 
Tubestore.com is a good place to read up on the differences between tube types and brands.

My school of thought is that I prefer EL-34's for humbucking guitars, and sometimes with a strat for that Hendrixy type clean tone.

I prefer 6L6's for Strats and Teles, since the breakup is rounder
and less raspy on the top end. 6l6's have a sweeter and rounder clean tone, whereas the EL-34 clean tone is real
glassy and woody. I do like strats on a 100W EL-34 amp,
because it has all that nice headroom.
 
This was just my personal experience......


I have a JCM 800 1 X 12 50 watt combo. In the beginning I found it too bright with the stock Marshall EL34s. I wanted something warmer and rounder (esp. on the gain channel). So I read around a bit and decided on KT 88s. I had Sovtek KT 88s installed and to me the amp was still too bright for my taste.

In the end I had my tech guy MOD my Marshall amp to fine tune it for to my taste.

I have other combos too and actually prefer my Fender Super 60 1 X12 combo over my Marshall. The fender has 6L6 tubes which to me sound warmer/rounder...IMO
 
I've used a Marshall head as a poweramp and I use a peavey classic 60/60 as poweramp.. To me, 6L6GCs sound better. Less Harsh, and didnt get muddy like the EL34s after they were driven a bit hard.

But i guess its a personal taste of sound.


Duke
 
I think you have to consider that many amps were designed with a particular power tube in mind, so that although we can describe a particular tube's characteristics, it's also the combination of circuit design + the tubes = tone.

that said,

6L6's ..... big and round
6V6's .... like a smaller version of the 6L6, with a little sweeter crunch
EL 34 .... yes, sweeter overdrive
EL 84 .... crunchy, even snarly, a little less bottom, with some inherent compression under gain. Sweet top end with lots of harmonics. Unlike the others here, it also has gain.
 
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