TWA SH9 Scott Henderson Signature Distortion Pedal

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Over the years, many boutique pedal builders have modified the SD-9 in hopes of improving its performance, but they have all missed the mark...Until now. TWA is very excited to announce their first signature model, as well as their first collaboration with Tube Screamer creator Susumu Tamura - the Scott Henderson SH9 Signature Distortion.
With the SH9, Mr. Tamura has taken the basic SD-9 circuit architecture that he invented in 1981 and re-worked it to meet Scott Henderson's exacting performance standards. Mr. Tamura has shifted the center frequency of the SH9's Tone control and focused it in the lows and lower-mids. Even as the Tone control is turned up, there is no loss of the bass frequencies that Scott considers essential for allowing notes to speak properly in the higher registers on the guitar.
This increased note girth combined with the SH9's inherently compressed sound allows Scott to effortlessly articulate the fluid, horn-like lead tones that he is known for. Another useful improvement to the SH9 circuit is an increased output level that helps the pedal to be heard clearly in a full band context. Mr. Tamura also designed the SH9 to operate with 9-or 18-volt power. Although Scott only uses the pedal with 9-volts, powering it with 18 VDC will allow for increased headroom with less compression and a slightly different character to the distortion.
The SH9 is housed in a die-cast zinc chassis and coated with a beautiful and durable metallic purple powder coating that was chosen by Scott (we love it too!). Only the highest quality components such as ALPS potentiometers, Marushin Jacks, KOA/Speer resistors and WIMA, Nichicon & Kemet capacitors are used in the SH9 circuit in order to maintain the highest standards of tonal reproduction.
Features
• Signature distortion pedal inspired by classic SD-9 circuit• Thick, compressed, amp-like tone
• Improved Bass and lower Midrange response
• Increased "girth" on high-register notes
• Allows notes to "speak" properly
• Increased output level
• JRC4558 OpAmp
• Optional 18vdc operation for increased headroom, less compression and alternate drive signature
• True Bypass switching
• Die cast zinc enclosure with custom powder coat
• Made in USA
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