TubeOhm SMR4P Multimode VCF – Full DIY Kit

£110.00 (Excl. VAT)

Multimode Filter based on the SMR4 MK2 with enhanced features

Recommended for Experienced Builders

Note: This version has a black front panel

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SKU: Kit_TubeOhm_SMR4P_Multi_VCF Categories: , , Brand: HP Size: 10 HP


This version has a black front panel

The TubeOhm SMR4P is a 10HP Eurorack Multimode VCF that combines the best features from two different filter circuits. The SMR4P design features the warm sound of the SMR4MkII filter alongside the 15 various filter shapes of the 4-Pole Mission VCF. This makes SMR4P a powerful ‘Swiss Army Knife’ filter, that can be switched between different filter types and slopes depending on your current need. This design also has some extra creative features, such as voltage-controlled switching between filter types, VC Cutoff Modulation, internal FM and a built-in VCA.

Build Documents – Assembly Guide 1 | Assembly Guide 2 | Layout | Schematic


  • Multimode 4-pole Voltage Controlled Filter
  • 20 Hz – 22kHz (Res 24dB)
  • Max signal amp input 5V p
  • Resonance control: intern/ext. 0-10 v
  • Cutoff control: intern/ext 0-10v (v/oct)
  • Modulation: ext. 0-10 v
  • Current: 30 mA on -12 V, 50 mA on + 12 V
  • Width: 10HP, Depth: 55mm

Additional information

Weight 0.2 kg
HP Size

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