Bass Filtron (Envelope Filter)


SKU: FGP-LR-BFIL Categories: ,

The “Bass Filtron” is a bass guitar envelope filter which gives an auto wah style effect. This pedal has 3 control knobs for range, attack and decay plus a Hi/Lo toggle switch and has great sound control.

2 in stock

This pedal was featured in 2018’s Bass Magazine and this is what they said:

The Filtron envelope filter pedal offers an auto wah-style effect with high and low settings depending on the definition and tone you require. With controls for Range, Attack and Decay, a fine selection of funky tones can be coaxed from this unit. For those who like a spot of bling, this pedal came fitted with a halo light plate that made the base of the pedal light up when in use. 8/10

Aditional Information

Range: Controls the filter range

Attack: Controls the filter sensitivity

Decay: Controls the filter sweep

Hi/Lo Toggle: Controls the bottom end

  • The Bass Filtron comes in a 1590BB Enclosure (LxWxD): 119 x 94 x 30 mm (67 x 3.68 x 1.18 inch)
  • -9v dc tip power supply required
  • No internal 9v dc battery function 
  • If you would like to have the halo light plate, halo light ring or large foot topper switch fitted at an additional cost then please request this prior to ordering.
  • This edition comes in blue metallic flake, blue candy lacquer and Mexican day of the dead graphics. Alternative graphic schemes available upon request.

All Flattley pedals are handmade, hand wired boutique custom guitar and bass pedal effects manufacturing company in the UK. further details can be found at and all our social media sites on Instagram/Facebook/LinkedIn/YouTube. Come and follow us/subscribe to see what we do and how you would want to have your customised pedal made

2 reviews for Bass Filtron (Envelope Filter)

  1. Luca Girotti

    A really sweet and dynamic envelope filter.
    Reminds me of a Q-Tron with more headroom and tonal possibilities.

    Love it.

    • Paul Flattley

      Hi Luca, thank you for your very kind feedback which is much appreciated. We are delighted that you are very happy with your purchase and we hope to see you at the London Guitar and Bass show 2019. Best regards Team Flattley

  2. Ash Hodson

    Brilliant Pedal!
    Very Musical Envelope Filter .
    Bin gigged the past few weeks in various different venues and I love how when you get it tuned in you retain that clean low end you’d usually loose with these kind of pedals . You can go from fast slapping funk to boarder line 80’s choppy synth ! Still Finding new sounds.
    The Pedal that keeps on giving.
    Can’t wait to really explore the rest of the range .
    Cheers Paul !

    • Paul Flattley

      Hi Ash
      We are really happy that you love your Bass Filtron pedal and we hope it gives you many years of great service. Many thanks and best regards Team Flattley

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