EL34 vs 6L6 - Victory V40 The Duchess

Around November 2014, I received my Victory V40 tube amp with JJ EL34 power tubes on. After a year and a half of guitar playing at home, I 've decided to try 6L6s (TAD RT812 TUBES 6L6WGC).
I wanted to find out if there is any difference between those tubes while using the particular amp.
I think that reamping is the right recording technique for such comparisons. That's why in this video you actually see twice the exact same guitar playing. I captured my guitar signal with Radial J48 DI Box and filmed it (you can see that the amp is off on this video) and later I sent my signal through a Radial JCR (reverse DI box) to the amp and recorded it.
I use two microphones (mid-side technique) for this amp, because it sounds more natural to me and I love the stereo image (especially when headphones are used)
Except for a slight Bus Compressor, there was no other effect or EQ applied.
The difference I found, in terms of loudness, is that I had to boost 4dB in post-production for 6L6s to reach EL34s' level.
In terms of tone, to be honest, I find no difference at all..!!
What do you think? Can you hear any difference?
..more of my projects can be found here:
/ bakis.productions
You can download the wav files here:
www.dropbox.co...
Gear Used:
- Victory V40 guitar amp
www.victoryamps...
- Shitty but good sounding Custom Stratocaster (goeldo parts assembled) with Häussel Pickups
/ guitarsgr
- Voodoo Lab Superfuzz Pedal
www.voodoolab.c...
- Focusrite Scarlett 18i20 audio interface
us.focusrite.co...
- Cascade Fat Head II ribbon mic
www.cascademicr...
- Neumann TLM 102 condenser mic
www.neumann.co...
- Radial J48 DI box
www.radialeng.c...
- Radial Reamp JCR
www.radialeng.c...