Hey guys first off the mods you guys post here are amazing. Line6 should be sending you all out too Burbank,Ca. for technical jobs honestly.

Im a decent tech and have had a fair amount of ohm meter,soldiering and circuitboard experience from things like radios,tv's,speakers,etc..

But I just cant bring myself too unload and load the boards on the SV's the way you guys do.

So I started thinking what are some good alternatives that get similar tone altering changes without breaking the Warranty or hovering around very high voltages.

Ive come up with a few good ones and worth noting:

1 - EQ in the loop or up front : Up front alters your guitars signal and may be too Hot for most presets,Looped seems too yield the most dramatic eq coverage and alterability of the amps tones. However some units essentially suck some tone out so use wisely.

2 - Vht Valvulator or other outboard tube buffered signal enhancer : My bud has a VHT Valvulator pedal unit that employs a 12ax7 for use as a line buffer enhancer(similar too the SVpre imo) and both up front or in the loop of the amp can yield some very noticeably good results.

3 - Speakers and cabs : Im always surprised how tonally different a amp will be from speaker too speaker or cab too cab. The amount of VG speaker choices out there today is staggering. Try a bunch out and you will be surprised at the variations your amp will achieve. From Red Coats too Hempacones too V30's too EV,s and etcccc

4 - Tubes,tubes,tubes : Just like speakers tubes can affect your amps performance both subtly as well as dramatically in many cases.

A Phillips Jan NOS is certainly quite different than say a newer Ruby or EH and as you expect both price and performance usually go hand in hand 

I had a Crate Bv that until a quality tube change and re bias was truly a piece of crap tone wise. The addition of GE 6l6's and NOS RCA's made a 180 degree difference in useable tones(that and ditching the stock Crate speakers)

5 - High Performance cords : This is a no brainer but often overlooked. Ive been guilty of using a avg cord and honestly the tones suffer when demoing later recordings.

Any other additions always Welcomed.