"The KTBK filter gives exactly what you expect from it, whether on drum tracks, brass, rhythm sections or on a effects return bus."
Roberto Sánchez | A-Lone Ark Muzik StudioReggae Dub Producer
"It's amazing that something as simple as a HPF brings so much magic to the mix. It has become an essential tool in my day to day."
Chalart58 | La Panchita RecordsReggae Dub Producer
"What a great job on the unit - sounds amazing! So much fun for the mix. Thanks for the great unit!!!"
Tom Rowlands | The Chemical BrothersElectronic Music Pioneer
More INFO

An Equalizer with Vintage Flavour for the Modern Studio

For music-quality-conscious people who enjoy the warm character of an analog filter. The King Tubby’s Big Knob (KTBK) provides the same genuine tone as an Altec 9069B, a vintage equalizer, designed in 60s, which enable a great control over the sound tone. The KTBK unit includes two additional switches, a mode selector and a resonance leveler which allows to modify the filter response for adapting it to the modern studio for different phases of the music production workflow.

  • Passive LC Filter
  • Replica of Altec 9069B aka Big Knob
  • 3rd-Order High Pass Filter
  • 10 Stepped Cut-off Frequencies
  • Mode Selector and a Resonance Leveler
  • 3 Modes: BELL, 600Ω, NOTCH
  • Designed by Reverse Engineering techniques
  • Customized Multi-Tap Inductor
  • Robust DSP Validation
  • Fully Analog Signal Path
  • Handbuilt with Love in BCN

FIRST ALBUM MIXED WITH A KTBK NOW AVAILABLE AT BANDCAMP

Audio Merge presents AUDIO MERGE in DUB feat. Roberto “Lone Ark” Sanchez and Chalart58. 10 dubs LP mixed with the KTBK passive HPF filter unit.

Available at Bandcamp in ALONEREGGAESHOP & LAPANCHITARECORDS DUBBING IS A MUST!

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