--- product_id: 61875983 title: "Seymour Duncan SSTC 3 M3 3 Band Tone Circuit for Musicman with 3 Knob" brand: "seymour duncan" price: "¥82528" currency: JPY in_stock: true reviews_count: 5 category: "Seymour Duncan" url: https://www.desertcart.jp/products/61875983-seymour-duncan-sstc-3-m3-3-band-tone-circuit-musicman store_origin: JP region: Japan --- # Seymour Duncan SSTC 3 M3 3 Band Tone Circuit for Musicman with 3 Knob **Brand:** seymour duncan **Price:** ¥82528 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** Seymour Duncan SSTC 3 M3 3 Band Tone Circuit for Musicman with 3 Knob by seymour duncan - **How much does it cost?** ¥82528 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/61875983-seymour-duncan-sstc-3-m3-3-band-tone-circuit-musicman) ## Best For - seymour duncan enthusiasts ## Why This Product - Trusted seymour duncan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Buy Seymour Duncan SSTC 3 M3 3 Band Tone Circuit for Musicman with 3 Knob. Free delivery and returns on eligible orders. Review: Champagne performance at beer can prices. - I installed this active tone circuit with a separate Seymour Duncan Music Man pickup for a DIY Music Man/Fender parts bass guitar project and it sounds great! It has all of that beautiful tone of the MM Stingray. The potentiometers in the wiring harness were pretty good, and using the controls is really nice. The metal knobs feel sturdy, pots have a convenient 50% detint, twisting with good drag, and the push-pull knob has a satisfying click. There is no electrical noise in the signal when the controls are adjusted. Far superior to the loose and flimsy feeling controls installed on the production Sterling bass guitars from Ernie Ball Music Man. The only quality concern I had was with the red lead wire that was pre-installed on the circuit board. I ended up de-soldering the chincy little thing that it came with and replacing it with a thicker gauge stranded copper lead. The documentation for this is difficult to find, and I couldn't find any video showing an installation step-by-step. I had to dig around the website to find circuit schematics, and I never found the specific diagram for the STC-3M3 with stacked low/hi control. I ended up referencing the version with separate low and high controls, which electrically is essentially the same thing. I also had to dig for functional operation description, frequency response curves, and tuning instructions for the PCB-mounted slap circuit pots. The paperwork that came with the unit was minimal and printed in black and white which is unhelpful because so much of the circuit is color-coded wires. The website is probably overdue for a revamp to make it easier to find reference materials. On the plus side, Seymour Duncan's tech service is responsive, casual, fun, and very helpful for sourcing hard to find docs. I would certainly buy this again. Review: Alt. wiring schematics - Sounds great. I'd like to see alternative options of wiring. ie.... wiring for more than one pickup ## Features - Proprietary Puss/Pull Slap Switch - Prewired 3-Knob Control Harness - Includes Mounting Hardware - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Product Details - **Brand:** Seymour Duncan - **Color:** black - **Item dimensions L x W x H:** 7.09 x 3.54 x 1.57 inches - **String Material Type:** Steel or Nickel-plated Steel - **Instrument:** Electric Bass - **Item Weight:** 28 Grams - **Operation Mode:** Manual - **Number of Strings:** 3 - **Manufacturer:** Seymour Duncan - **UPC:** 800315004744 ## Images ![Seymour Duncan SSTC 3 M3 3 Band Tone Circuit for Musicman with 3 Knob - Image 1](https://m.media-amazon.com/images/I/61N7T0pvDSL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Champagne performance at beer can prices. *by T***Y on 15 June 2026* I installed this active tone circuit with a separate Seymour Duncan Music Man pickup for a DIY Music Man/Fender parts bass guitar project and it sounds great! It has all of that beautiful tone of the MM Stingray. The potentiometers in the wiring harness were pretty good, and using the controls is really nice. The metal knobs feel sturdy, pots have a convenient 50% detint, twisting with good drag, and the push-pull knob has a satisfying click. There is no electrical noise in the signal when the controls are adjusted. Far superior to the loose and flimsy feeling controls installed on the production Sterling bass guitars from Ernie Ball Music Man. The only quality concern I had was with the red lead wire that was pre-installed on the circuit board. I ended up de-soldering the chincy little thing that it came with and replacing it with a thicker gauge stranded copper lead. The documentation for this is difficult to find, and I couldn't find any video showing an installation step-by-step. I had to dig around the website to find circuit schematics, and I never found the specific diagram for the STC-3M3 with stacked low/hi control. I ended up referencing the version with separate low and high controls, which electrically is essentially the same thing. I also had to dig for functional operation description, frequency response curves, and tuning instructions for the PCB-mounted slap circuit pots. The paperwork that came with the unit was minimal and printed in black and white which is unhelpful because so much of the circuit is color-coded wires. The website is probably overdue for a revamp to make it easier to find reference materials. On the plus side, Seymour Duncan's tech service is responsive, casual, fun, and very helpful for sourcing hard to find docs. I would certainly buy this again. ### ⭐⭐⭐⭐ Alt. wiring schematics *by C***K on 28 January 2015* Sounds great. I'd like to see alternative options of wiring. ie.... wiring for more than one pickup ### ⭐⭐⭐⭐⭐ Great product by a great company! *by B***F on 10 May 2025* Great product, but complicated to install if you don't have any soldering experience (I do, so wasn't that big a deal to me). Really added depth to my bass. Comes with everything you need except new humbuckers or pickups. Just solder two wires to the audio, another from the audio to the battery negative, and then two wires to your pickups or switch(es). Plug in the connectors to the circuit board, and you're GTG! Price is fair and recommend this over anything else. The tone knobs (combined knob for bass/treble, single knob for mids) and the volume knobs work great! Definitely an A+ here. ## Frequently Bought Together - Seymour Duncan STC-3M3 Active Tone Circuits for Music Man - Seymour Duncan Music Man Bass Pickup - Featuring Authentic Vintage Tone, Perfect Bass Guitar Pickup for Funk, Rock, and Slap - Seymour Duncan 90's Music Man Ceramic 4-String Bass Pickup - Modern Replacement Pickup for 4-String Stingray Basses, Perfect for Heavy Rock or Thumb-Funk Styles --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/61875983-seymour-duncan-sstc-3-m3-3-band-tone-circuit-musicman](https://www.desertcart.jp/products/61875983-seymour-duncan-sstc-3-m3-3-band-tone-circuit-musicman) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-22*