Power Tube Comparison KT77 vs EL34

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leadfootdriver
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Power Tube Comparison KT77 vs EL34

Post by leadfootdriver »

The tubes are the JJ KT77 vs the Sino EL34B. I run the amp thru a Rivera Rockcrusher, so they might sound different if I was really pushing air. But I'm not in a spot where I can blow the roof off!

Both sets were biased at 70%, and the controls on the amp were the same with all knobs at 12:00 except for the presence, which was set at 9:00.

I modded my bright switch for 370 pf, which is a little less compressed and greasy in feel and tone. The Express is a bright amp, so a little brightness off' the top is welcome IMO.

My observation is the the KT77 is just slightly fatter in sound and less compressed in feel.

JJ KT77
http://home.comcast.net/~leadfootdriver/JJKT77.mp3

Sino EL34B
http://home.comcast.net/~leadfootdriver/EL34B.mp3


[IMG:1024:768]http://i258.photobucket.com/albums/hh26 ... 103ff1.jpg[/img]
Darrell minx
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Re: Power Tube Comparison KT77 vs EL34

Post by Darrell minx »

have you tried Mullard re-issue EL34 yet?
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Smokebreak
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Re: Power Tube Comparison KT77 vs EL34

Post by Smokebreak »

Both sound great! El34s sound a little more wide open and raw. What kind of guitar/pickups?
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leadfootdriver
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Re: Power Tube Comparison KT77 vs EL34

Post by leadfootdriver »

Darrell minx wrote:have you tried Mullard re-issue EL34 yet?
I have no interest in Sovtek tubes.
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leadfootdriver
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Re: Power Tube Comparison KT77 vs EL34

Post by leadfootdriver »

Smokebreak wrote:Both sound great! El34s sound a little more wide open and raw. What kind of guitar/pickups?
They're both really bright tho. I'll repost these clips when I get a set of 6CA7's. I hope they fill in the bottom end a bit to balance things out.

It's a 7-string Ibanez with EMG 707TWX's
Smokebreak
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Re: Power Tube Comparison KT77 vs EL34

Post by Smokebreak »

I never would've guessed that. I've only heard the JJ 6CA7s in a plexi, and they sound great there. Little bigger bottom. One of them red plated and ate it immediately but tubedpot sent another one with minimal questions asked, fwiw
Darrell minx
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Re: Power Tube Comparison KT77 vs EL34

Post by Darrell minx »

thats funny cause i tend to be that way about JJ tubes, different strokes for different folks! Cherrio!
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Richie
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Re: Power Tube Comparison KT77 vs EL34

Post by Richie »

I thought the first clip had a little more clarity in the clean part, compared to the second clip. But the second clip sounded good on the cranked part compared to the first clip.
vibratoking
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Re: Power Tube Comparison KT77 vs EL34

Post by vibratoking »

I prefer the KT77s, but neither get clean/chimey enough IMO. That's a hard song to pulloff since it is done with one guitar in open G tuning and another in standard. It's always a compromise, although I enjoy playing it. Nice...
Roe
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Re: Power Tube Comparison KT77 vs EL34

Post by Roe »

these chinese el34bs draw much less screen current than a real el34
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rooster
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Re: Power Tube Comparison KT77 vs EL34

Post by rooster »

I am a fan of the JJ/KT77, but I'm actually more interested in the speaker(s?) used, the mic, and how you combined the guitar sound with the drums and bass.

I also have to point out that BG is big on the Peso coin for a pic, ...so when I hear someone doing him I listen pretty hard for that sound. And I don't hear it, of course. Man, there are so many elements to a great recorded guitar sound.. I f'n hate this sometimes. But it's a fun clip to hear, thanks for posting it.
Most people stall out when fixing a mistake that they've made. Why?
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leadfootdriver
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Re: Power Tube Comparison KT77 vs EL34

Post by leadfootdriver »

Not goin for BG tone. It was just a quick backing that's accessible. Here's a link to it. http://www.guitarbackingtrack.com/bts/ZZ_Top.htm

Speakers are WGS ET65's and the mic was an SM57.
Clyde
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Re: Power Tube Comparison KT77 vs EL34

Post by Clyde »

I'm liking the KT77's. Have you tried the Genalex? Oh, sorry just read that you don't like New Sensor's offerings. You might change your mind.
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