Electro-Harmonix 12AX7
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12AX7, Guitar Amp Tube from Electro-Harmonix.

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All user reviews of 4/5 for the Electro-Harmonix 12AX7

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kaoslord05/22/2013

kaoslord's review (This content has been automatically translated from French)" good light, very rich"

Electro-Harmonix 12AX7
This is a lamp with a gain quite expensive (comparable to Tunsol 12AX7)
a little ground in the mids, it sounds a little "vintage".
I think it sounds great in position V1 low gain, it adds wealth to clear his (nice bass + treble crystalline).

on the other hand, it goes to the gain (> 3 on my amp) it begins to saturate VERY quickly and the sound management of low frequencies, which is fairly typical of Russian lamps.
So, in my amp (100w Jetcity) saturated sound loses the definition (but what a potato!).
I therefore prefer to V2 position (lamp used only by the saturation of the amplifier channel), the grain is very "grainy" and the distortion quite elevated.

To summarize, a good lamp cheap. But beware, if your bass amp has already beautiful, it will be a little too heavy. on the other hand, if you have a feeble or too loud amp, it apporterta gain and depth to your sound.
elchookas04/01/2008

elchookas's review (This content has been automatically translated from French)

Electro-Harmonix 12AX7
I often find this lamp in pedals or amp type Valvestate and all lamps and now it's a REFERENCE: hot lamp with a lot of momentum. It has a good amount of gain and suffers from some of microphonie.Pas dsequilibre in the sound spectrum and a grain inimitable ...
Finally it may be that makes me a note at decendre final board as it is home to a bunch of stuff, the sound does not flatter myself the ear as the ground tung 12 AX 7 or DD ECC 83.
A standard
stasvico10/09/2007

stasvico's review (This content has been automatically translated from French)

Electro-Harmonix 12AX7
The 12 AX7EH trs is hot, sharp and sound gives a good overall DEFINITIONS.
This is not a choice I do it again, as the gain less than the available ground tung, EI and other golden dragon.
gain a good compromise / clarity but not a must for mtal in gnral.
it is relatively efficient on a floor of between prampli ...
berry03607/30/2006

berry036's review (This content has been automatically translated from French)

Electro-Harmonix 12AX7
I use this lamp on a distortion pedal for Tube Works Real Tube. I simply removed the original lamp (still good) that I replaced with this one to see the differences:

With the Electro Harmonix 12AX7, the sound is more crystalline. One can adjust the distortion at a relatively low level without losing a lot of potato (beneficial use on a piece of rock or blues). When the effect is set up, the sound is very powerful.

However, at the equalizer, the medium's almost absent. It's a shame.