API Select TranZformer LLX Bass Pedal
  • Sale
  • Regular price $280.25

API Select TranZformer CMP Compressor Pedal 

  • Proprietary API 2510 OpAmp
  • Signature API output transformer
  • 3-band EQ each with +/-15 dB of gain
  • OpAmp overdrive circuit
  • 40 dB of gain
  • -20 dB output pad
  • Buffered bypass

The API Select TranZformer® LLX incorporates API's legendary EQ circuit into a versatile and compact bass guitar effects pedal. Designed to easily fit into your pedal board and engineered to run on standard 9V or 18V power supplies, the LLX offers +/- 15dB of gain on 3 bass guitar specific frequencies. Additionally, the gain stage can be switched from Clean Boost to Overdrive mode to drive the input OpAmp and add even more tones to your arsenal. Other features include a buffered bypass, -20dB output pad, selectable peak/shelf for upper frequency range, transformer output, and of course the classic API sound.


Input connection:

1/4" Hi-Z unbalanced instrument input

Input Impedance:



Yes, buffered, 0dB

Output connections:

1/4" Hi-Z unbalanced output

Output Impedance:

Hi-Z output: Less than 1kΩ

Input Gain Control:

0dB - 40dB, Variable

Output Level Control:

0dB to -20dB, Switched

Maximum output level before clipping:

+15dBu (9VDC)
+22dBu (18VDC)

Frequency Response:

+0dB, -1dB, 20-20kHz

Tone Control:

100Hz & 400Hz Peaking, 2kHz Shelving/Peaking (w/switch), continuously-variable boost/cut, +/-15dB range.

API 2510 amplifier overdrive (Switched) placed before tone controls. Clean boost amplifies the signal with no added distortion.

Power Supply:

9-18VDC @ 100mA


4.6" x 3.8" x 3"

Size (Boxed for Shipping):

6" x 4.5" x 4.5"

Actual Weight:

1.5 lbs.

Shipping Weight:

2 lbs.