SKU: 4789637921
distortion pedale

distortion pedale TWA SH9 Scott Henderson Signature Distortion Effects Pedal, Green Font

Sale price$21.47 Regular price$23.86
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Description

distortion pedale TWA SH9 Scott Henderson Signature Distortion Effects Pedal, Green FontIn stock Please allow up to 14 business days for us to build, test, & ship your SH9. Once your SH9 ships, you'll receive your tracking information. "The SH9 is the best distortion pedal Ive heard for live playing, and sounds equally great on the bridge and neck pickups. It has all the compression and punchiness needed for legato playing, plus a versatile tone knob, a low, clear bass frequency, and an overall fat and musical tone. This pedal rocks!"

In stock - Please allow up to 14 business days for us to build, test, & ship your SH9.
Once your SH9 ships, you'll receive your tracking information.

"The SH9 is the best distortion pedal I’ve heard for live playing, and sounds equally great on the bridge and neck pickups. It has all the compression and punchiness needed for legato playing, plus a versatile tone knob, a low, clear bass frequency, and an overall fat and musical tone. This pedal rocks!" -Scott Henderson

TWA SH9™ Scott Henderson Signature Distortion

  • 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
  • Made in USA

Click to read the GP Review

Dani Rabin (of Marbin) shows you how to get the perfect jazz fusion tone in Four Steps:

CLICK HERE TO READ THE FULL BACKSTORY

For the past 20 years, Jazz Fusion guitar great Scott Henderson has had a Maxon SD-9 Sonic Distortion parked on his pedalboard.  He’s even gone so far as to call it “…the best distortion pedal ever made.

Yet for all his praises, there were several shortcomings to the SD-9 that many players –Scott included– had discovered.  Chief among these were a loss of low-end on high notes and a Tone control that was basically unusable past the 9 o’clock setting.

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 our first signature model, as well as our 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.

The SH9 is available with two different faceplate screens:  The first version highlights the SH9 logo in the same trademark lime-green color as the original SD-9, while the second, all-white screen features a replication of Scotts signature.

We would like to offer our heartfelt thanks to both Scott Henderson and Susumu Tamura for their involvement in this project and their willingness to go above and beyond the norm.  We have learned many invaluable lessons during our interactions with these two Masters of their crafts. 

We are deeply honored to have been a part of the SH9 development.  We had been knocking this one about for the better part of three years, and there were several times that we didn’t think it would get off the ground – we’re very pleased that the SH9 has finally taken flight.

PLEASE NOTE: Due to the limited nature of this pedal, long lead-times, and non-refundable transaction fees a 20% restocking fee will be charged on all canceled orders.

*Please note, like all TWA Pedals, the SH9™ will be manufactured in a limited batch of 50-100.  Unfortunately we are unable to predict exactly when/if a next batch will be manufactured.
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4789637921

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Bunny W. Macon
Fort Morgan, US
★★★★★ 5
Light weight & Sturdy
Size: 6 Panel, Color: Dark Coffee
I am so pleased with them. My lanai gets morning sun and I am concerned about the UV rays fading the fabric of my furniture No more having to cover each piece at night. The screens are great. Thank YOU
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
K
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Krishna
Omaha, US
★★★★★ 5
Good
Size: 6 Panel, Color: Dark Coffee
Good, no complaints after several months of use
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
J
Verified Purchase
Joseph C.
West Palm Beach, US
★★★★★ 3
Functional divider for windows privacy
Size: 8 Panel, Color: White, Size: 8 Panel, Color: White
I ordered both a six and eight panel version of the white divider. There was some confusion on the FedEx deliveries. The eight panel divider arrived at first, but Amazon showed both as delivered. I had to contact both the seller and Amazon to learn that the six panel divider was to arrive the following day by FedEx, which did occur. Both the boxes were a bit dirty and had some small punctures. This divider had a top area and bottom area set of plastic wrap tapes, both of which were loose or undone. (The eight panel divider was not so, and properly wrapped.) The top of thid divider looked a little dirty, but passable/cleanable. The seller should consider wrapping the entire product with bubble wrap to protect against potential delivery/shipping physical and water damage. (FedEx left the box by my outside door, which could have gotten potentially soaked in rain. One better be home to take delivery if the weather is bad.) This said, the divider was easy to set up, with all the metal hinges working. No assembly was required, just unboxing and standing up. The left side was a little uneven on the bottom with the first panel, but ok. In combination with my mini-blinds, it provides the additional layer of privacy I desired. I even don't notice outside headlights and tailights through the windows with my room lights on. Additionally, the divider is easy to adjust to allow access to my windows for opening and closing. So, no need for me to hang curtains and damage my drywall. Overall I give the product a C grade because of the lack of protection for the FedEx shipping. (As a former University told me years ago, "The A has been cheapened. In this class you will work for an A." And, I got a B. So, I am a bit jaded. :-)) Lastly, if one had cats and dogs, or even small children, the divider could be easy for them to topple over. I would not consider these dividerd in that case. My motto is, "Safety first."
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Reviewed in the United States on December 31, 2025
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Margaret Cheatham
Omaha, US
★★★★★ 5
Prrfect
Size: 6 Panel, Color: Dark Coffee
Love it. Perfect for my needs to create a hidden storage space in my spare room. Highly recommended
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Reviewed in the United States on January 21, 2026
K
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Karen O'Dell
Massapequa, US
★★★★★ 5
GOOD PRODUCT
Size: 8-Panel
GOOD QUAILITY AND WORKED OUT PERFECT FOR WHAT i NEEDED IT FOR
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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