DESCRIPTION:
http://thoughtfulguitarist.com/
http://www.diamondpedals.com/products/jdrive_TR.html

This is a rare limited edition Diamond J-Drive TR overdrive/boost. TR stands for treble boost I believe -- it was released before Mk3 of J-Drive as a limited edition of 100 pedals in 2006, and it features a germanium treble booster in addition to a clean boost.

The great thing about this pedal is the range of sounds you can get from just a few knobs. While the bright switch is on the subtle side, there's a wide range of tones available from the unique Warmth knob to two flavors of boost. You can go from cutting low-gain rhythm to thick, fat and saturated. I believe the currently available Mk3 version has many of the same features, sans the treble boost.

Here's my written review: http://thoughtfulguitarist.com/2013/03/diamond-j-drive-tr-limited-edition-released-prior-to-mk3-review/ ‎

Guitar: 1980 Ibanez Blazer
Pickups: DiMarzio Area 69 (neck + middle) VV Heavy Blues 2 (bridge)
Amp: Laney LC50II
Cables: Bill Lawrence
Mics: Shure 57 + Studio Electronics Z2200A
Audio Interface: Echo AudioFire4