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Details about  Modified TS9 Tube Screamer Pedal Deluxe Mod: Fat Mod Brown Mod Gain Mod Chip Mod

Modified TS9 Tube Screamer Pedal Deluxe Mod: Fat Mod Brown Mod Gain Mod Chip Mod

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Item Information

Item condition:

Clean Condition

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2 available / 26 sold
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US $135.00
29 watching
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100% positive feedback
26 sold
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Item location:
Tampa, Florida, United States
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Last updated on  Apr 08, 2014 21:37:49 PDT  View all revisions

Item specifics

Condition: Used : Split the cost with friends
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab
Seller Notes: Clean Condition




Modified TS9 Tube Screamer

This TS9 reissue comes fully modified and ready to go ~ it is in clean condition. We also have two other TS9 pedals available with the exact same mods: New in original box for $150 and some cosmetic imperfections for $125 ~ see other items link here or at the top of the page.

Tube Screamer: The stock pedal has a fairly good tone – it tends to lack gain, low end, and have a bit of a mid hump. This Mod addresses these issues to achieve Tone usually reserved for boutique pedals costing far more. Below are specifications detailing each part of the Mod process. International shipping is $25 to any country.

Our Mods: Because the Tube Screamer is such a simple yet effective circuit, a number of the Mods we perform are the same as Keeley, Analogman, etc. Some of the individual Mods we have in common are: Better Gain Mod, Better Clean Boost Mod, Better Bass Mod, Better Highs Mod, Chip Cradle Mod, plus unlike our competitors we offer both the JRC4558D and the RC4558P op-amp chips which allows users to make up their own minds as to which one they prefer. We also perform some Fidelity Mods wherein we upgrade the inferior stock parts that are the most crucial to the signal path. The main thing that sets us apart is that our prices are substantially lower and we offer a 14 day money back guarantee. All in all our service is second to none ~ just check our feedback.

For the video we plugged the pedal directly into a stock VHT Special 6 tube amp. Video                                                                        

Led Mod         Chip Cradle Mod          Clearer Tone Mod

Fat Mod TS808 Brown Mod        Better Bass Mod

Chip Mod        Better Gain Mod            Better Highs Mod

Led Mod
This Mod changes the low density stock orange Led to a high density Super Bright Green Led which not only looks great, but is also easier to see.

Fat Mod
Tube Screamers tend to have weak bass response so the stock pedal can sound fairly thin.  This Mod changes the low quality stock .22uf polyester capacitor to a superior metal film capacitor of a slightly different value, thereby restoring full bass response to the tone.

JRC4558D Chip Mod
This Mod upgrades the inferior stock TA7558P chip to the JRC4558D that is found in the most desired Vintage TS9 & TS808 Tube Screamers.  Also included is the Texas Instruments RC4558P chip for maximum flexibility.  Only the earliest TS-808 Tube Screamers contain the Texas Instruments RC4558P chip.  Many veteran players (me included) like the RC4558P for sake of its grit, which is great for Texas Style blues & rock. 

Chip Cradle Mod
This Mod installs a chip cradle which allows the chip to be swapped without resoldering – just remove the chip and slide in another one.

TS808 Brown Mod
This Mod changes the value of the output resistors back from a 470 ohm Carbon Film to a 100 ohm (as found on the early TS808’s) which warms up the tone and allows the full spectrum of bass frequencies to pass the output stage.  Also, by using a 100k ohm output resistor, the stock Tube Screamer allows a lot of high end noise to enter the signal.  Lowering the value from 100k to 10k (as found on the early TS808’s) sets a lower threshold reduces the hiss.

Better Gain Mod
This Mod changes the value of the 4.7k gain resistor to a 2.2k resistor, which increases the gain.  It adds that extra bit of gain while maintaining the clarity and diction of chords.  

Clearer Tone Mod
This Mod changes two of the low quality stock polyester .047uF capacitors to higher quality Metal Film Capacitors which makes for a tighter bottom and more fullness of tone throughout.  Also changing the 2 stock 1uf electrolytic capacitors to high quality Metal Film Capacitors provides an overall clearer, more focused tone while adding some warmth to the gain structure.

Better Bass Mod
This Mod changes the low quality electrolytic capacitors to high quality Metal Film Capacitors which tightens up the tone by keeping the bass from distorting, without altering or sacrificing the Classic Tube Screamer sound.

Better Highs Mod
Changing stock .22uf tone capacitor to a .15uf Metal Film Capacitor sweetens up the high end and brightens up the overall darkness of the stock pedal.

Customer Feedback

Second to none with the Mod on this pedal...Hear to believe...AwEsOmE Tones...!!

Very happy with the pedal… prompt service and an A1 seller! 10 out of 10!

~ Excellent Service ~ A+ MODS ~ Crazy fast shipping ~

Awesome. Just can't believe how fast I got it. And it was perfect.

Super fast shipping with great product! Who could ask for anything better!!!?

Literally tried loads of overdrive pedals this one is IT for me, thanks :D

Outstanding mods, Fast shipping, Thank you very much!

Excellent product and Fast shipping! Excellent seller for buyers worldwide.

Super fast shipping, perfect transaction, Thanks!!!

Great service and pedal, quick shipping.

Great seller, would buy from them again! Great price!! Love the free shipping!!!

Prompt friendly, item as described, shipped promptly/safely.

Beautiful TONE!! As described and more. Great seller would be back in a NY sec!

This tube screamer mod is fantastic! I'll comeback!

Excellent ebayer, great pedal, very toneful.


We may be relatively new to ebay, but we are not new to modifying tube screamers. Since 2001 we have mastered the art of extracting every ounce of tone from these beloved pedals.


Our pledge to our customers is to provide the best possible service for the best possible price: we will not be outdone or undersold.


All items are shipped within 1 business day through USPS: Priority for pedals and First class for mod kits and parts.


All items returned within 14 days will be accepted so long as said items are in the same condition as when received: the only cost for buyers is return shipping.


We welcome any questions concerning our products, or how to mod/repair pedals. We promise to be as helpful as possible and to respond within 1 business day.

Questions and answers about this item

No questions or answers have been posted about this item.

Seller assumes all responsibility for this listing.

Shipping and handling

Item location: Tampa, Florida, United States
Shipping to: Worldwide
Handling time
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Immediate payment of US $135.00 is required.
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