The Helion is the preamp section of the Traynor TS-50B bass amp. It features a combination of op-amps and transistors to give a hard hitting solid state tone. An internal power supply chip provides the full +/-15V supply as in the original amp, allowing plenty of headroom to easily achieve line level. At higher gain settings, the Helion creates a cutting grindy tone. Check out the bands Shellac and The Jesus Lizard for examples of bass using the TS-50B amp.



  • Bass, treble, and middle equalizer for tone shaping
  • Boost switch gives even more gain at higher frequencies
  • Pad switch gives 12dB of attenuation at the output if line level is not needed
  • Can easily drive a power amp


The pedal requires a 9V DC power supply (not included). The DC supply should be a standard Boss style connector, center negative polarity. The current draw is approximately 15 mA.


The Helion has a true bypass switch.


Dimensions: 4.77" long x 2.6" wide


  • We ship internationally. All orders will be shipped via Canada Post. Shipping is a flat rate no matter how many pedals you purchase. Your shipping cost will appear at check-out.

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