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12AX7 – Do different preamp tubes make a sonic difference? From Behringer to Mullard

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Do different 12AX7 preamp tubes (sometimes referred to as ECC83) -and equivalents such as the 12AT7 – make any sonic difference? We try several sets in the V1 position to find out.

3:56 Harma ECC83 Cryo
4:58 Behringer 12AX7-A
6:29 Ruby 12AX7
7:36 Mullard ECC83
8:27 Sovtek 12AX7LPS
9:25 Cossor 12AX7
10:57 JJ ECC82
12:31 Brimar Yellow T 6060

Wave files for comparison:- https://www.dropbox.com/s/ca0brzr4wqu…

The guitar parts used are from me, the track is as yet untitled but may be released in future.

The guitars were recorded through my Peavey 6505+ converted from the 112 combo (and modded a bit) on red channel, with a BOO Instruments OD808. (green channel for the clean section).

The Cabinet used was a Zilla Fatbaby 1×12, and the Microphones used were an sE Electronics VR1 Voodoo Ribbon and a Shure SM57.

NO EQ WAS USED AT ALL. No compression, no nothing. If you want to EQ your guitars to fit into a mix, that’s understandable but we wanted you to know what they sound like straight off the desk.