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Ibanez TS-9 Mod+
Keeley Mod


The TS9 has great tone to start with. After the modifications, this pedal sounds indescribably better. Every component added is of the highest quality. There are metal film resistors in the circuit to improve the signal to noise ratio. Film capacitors are used in the tone section to provide the smoothest midrange and high frequency. The choice of capacitors for the unique Tone Cap mod increase the low-end tone of your guitar without adding the slightest bit of muddiness or dullness to your tone. The integrated circuit used is the Texas Instruments RC4558P. This chip was chosen because it provides the best sound quality available. This pedal has been modified to have the More/Less Mod. This allows you to have less distortion in the lower settings of the Drive control and more distortion and saturation in the higher setting of the control. All the stock TS9 settings are possible throughout the midrange of the control. Plus, none of the singing sweet midrange tone is gone!

What you get with the Ibanez TS-9 Mod Plus!

1. Better bass response along with true mid range and high frequency transparency
2. Wider range on your tone control
3. The More/Less mod! The modded Tube Screamer can get cleaner and more distorted than stock. 4. You get the 808 output mod which gives you more output volume
5. All of these mods make the TS-9 Mod Plus the ultimate version of the famous Tube Screamer you can have!

  • All Controls set around 1 O’clock. Nice starting position, good biting drive and gain.
  • Set the Level to 3 O’clock, the Drive at 9 O’clock, and Tone anywhere that sounds good to you. This is a good clean boost and great for distorting the input of a tube amp.
  • Set the Level to 4 O’clock, the Drive off, and Tone anywhere that sounds good to you. This is a SUPER clean boost setting.
  • Set Drive to 4 O’clock, the Level to 12 O’clock, and Tone anywhere that sounds good to you. This is a super sustain setting. Great for lead work that is very saturated yet retains the essence of your guitar!

All modifications are warrantied for you, the original owner, for one year. If you have any problems at all please email Mammoth Electronics at If you are happy with this product, please let everyone know and tag us on Instagram and Facebook with #mammothelectronics. If you are not happy with this product for any reason at all, please let us know within 48 hours and we will refund your order. The entire Keeley and Mammoth team thanks you for your business. You’re keeping the good tones alive! If you like this product, there’s more where it came from, check out the rest of our products at

Mod times are 3-5 business days from the day that your pedal(s) arrive. Please ship to the address below:

Mammoth Electronics
Attn: Mods Department
3203 Broce Dr
Norman, OK 73072

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