I posted this review on the Seymour Duncan forums this morning...
So this pedal came in the mail on Monday and I'm just now getting a chance to type up a little review. I really didn't have a clue what to expect. I had just seen it used on another forum and the price was right, so my curiosity got the better of me and I bought it.
Firstly, this is the older version with the 24V DC power input. I'm coming to believe that for me, higher voltages (18+) are where it's at for OD pedals. I like the increased headroom, and they just seem more "pissed-off" to me.
I started-out using my Duncan Hot/Cool-Stack loaded Strat running through this pedal into the clean channel of my [blonde] Fender Supersonic Twin. As expected, the pedal was pretty trebly and edgy with the amp in Twin mode. Once I flipped the switch over to Bassman mode, it got much fatter. I'm sure that one could tweak the tone knobs on the amp and pedal to find someone nice for it to live in Twin mode. But I tend to want to let an amp and/or pedal do what it naturally wants to do (keep many of the knobs at the "noon" or halfway point) and just do minor adjustments outside of those. Rather than using one or the other to completely override the other component and have the controls "fighting each other".
Anyways... once I switched over to the Twin's Burn channel, with channel gain set to a slight crunch or "hairy" mode, and then kicked the Destination 5 in... that's when the magic really started to happen. It was just so full, growly, and responsive. I had it setting right next to my buddy's extensively modded TS9 and flipped back and forth a couple of times. I'd previously been enjoying having the TS9 back to play with (it used to me mine). But after a couple of minutes flipping back and forth between it and the Option 5, I unplugged the TS9 and set it aside. The new pedal just had so many more features and sounded so much better. The TS9 sounded thin and nasally in comparison. My crunch rhythms were chunky and meaty (ACDC-ish) and my leads were liquid and soaring (Eric Johnson-ish). I had to remind myself that I was playing one of my Strats and not one of my LPs. This is probably the best rock tone I've ever been able to get out of a Strat. And that includes plugging into my beloved Plexitone.
Next, I pulled-out my 2001 LP Standard and proceeded to spend time there. No tweaking really. Maybe pull the gain down a hair and scoop the mids slightly. Moved the "growl" knob back and forth. I can hear a difference there, but it's not massive. I think I prefer medium to high growl settings. The LP through this pedal, into the Twin was [of course] even more awesome for rock than the Strat was. After playing this combo for a while, I switched over to playing into my Ceriatone RP 18/36 plexi-style head into a V30 loaded Line 6 straight 4x12. Pure rock crunch heaven. I dunno that it was any more heavenly than when I play through my Plexitone using that rig. But it wasn't any less heavenly.
In short... what I know so far is that I really dig this pedal. I've owned two of the original Carl Martin Plexitones and up to this point, NONE of the other OD pedals that I've had since compared (for my tastes). But this pedal does. I'm pretty sure that I much prefer the new pedal if playing a Strat. And if playing an LP, it's more even. I wish the Option 5 had a clean boost (like the PT), but it does have two outputs (which the PT doesn't). So give and take there. I will add to this review after I've spent more time playing LOUD in various different configurations.