The latest version of the OD-100 was developed when LA studio legend Mike Landau told John Suhr that he'd like the OD-100 Standard+'s Channel 2 to be like an early-70's British amp that he owned and adored. John borrowed Landau's amp and tweaked away, eventually coming up with a brand new Channel 2 and a new output section that duplicated and even surpassed the sound that Mike had come to love. The OD-100 Classic was born! The Channel 2 of the OD-100 Classic has much less gain than Channel 2 of either the OD-100 SE+ or the OD-100 Standard+. It's definitely more of a vintage voicing – like that of cranked non-master-volume amps with EL-34 output tubes – but you have the flexibility of the master volume to get that cranked sound and feel at moderate volume levels. Besides the completely new preamp circuit for Channel 2, the OD-100 Classic features the silver "Plexi-style" output transformer and EL-34 output tubes in the power section for a more authentic vintage British sound. The OD-100 Classic soon became Mike Landau's main gigging amp. Scott Henderson got to hear this new version of the OD-100 over at Mike's place and it wasn't too long before Scott got his OD-100 Standard+ converted to the Classic and he ordered one more as a backup. A little later blues virtuoso Kirk Fletcher picked one up as well.
The OD-100 Classic's Channel 1 remains the same as that of the Standard and the SE, but due to the new power section there is slightly more mids and compression. It's still a great clean sound reminiscent of the 60's Blackface sound. The Classic's Channel 2 is more raw with less gain. The low-end is tighter with a faster transient attack. The amp's response challenges you to take it by the horns and take it somewhere. This is certainly not a beginner's amp! Great players with amazing control over their instruments want the character of their playing to come through without artificial coloration from the amp and this is where the OD-100 Classic truly shines. OD-100 Classic's Channel 2 can be described as big, raw, throaty with a tough growl, organic, and touch sensitive to your playing dynamics. It's a vintage type of tone that you can tame and refine with pedals and by how you attack the guitar. It's a player's amp – an amp for the player who knows exactly what he wants out of his sound and knows how to wring out the tones he envisions with his hands.
The new OD-100 Classic+ complements the OD-100 Classic with more gain on CH2 (think early ZZ Top, late AC/DC, early Van Halen and other classic rock sounds of the 70's and early 80's) with a more forgiving response, which makes it an absolute joy to play. Both the OD-100 Classic and Classic+ models come with Feedback and Depth knobs on the back panel. The front panel has the Presence knob which controls the power amp high-end content for both channels. The Feedback knob is essentially a speaker dampening control. It has a center detent which is bypass of the Feedback circuit. Turning it clockwise from the center gives the amp a tighter and more aggressive response with slightly increased volume level. Turning it counterclockwise from center makes the amp feel a little spongier with a more vintage type of a feel and response.