BubblesoundLP40 Low Pass Filter


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Bubblesound LP40

Roll off all those frequencies with the smooth sounds of Bubblesound's LP40, an analog low pass filter with multiple slope outputs. Based around the same circuitry used in Sequential's Prophet 5 Rev4, the LP40 provides a smooth cutoff control with a flexible amount of resonance that can self-oscillate, making for a very tasty sinusoidal voice. Low noise and distortion makes for a quite transparent filter, but the analog signal path brings buttery rolloffs to any signal, be it basses, leads, or percussion! The multiple outputs allow you to achieve 12dB/Oct, 18dB/Oct, or 24dB/Oct slopes, and the additional 24dB/Oct output offers even further flexibility for sound designing a single signal into multiple sources. With CV inputs for controlling cutoff frequency and resonance, the LP40 by Bubblesound can be your go to filter for rich and creamy sonic shaping.

LP40 Features

  • Analog low pass filter module
  • SSI2140 chip, used in Prophet 5 rev 4
  • Filter cutoff and resonance controls with CV inputs and attenuators
  • Input with attenuator
  • 12dB, 18dB, and two 24dB/Oct outputs
  • Eurorack module
  • Width: 4hp
  • Depth: 25mm
  • Current draw: 21mA @ +12V, 50mA @ -12V
Bubblesound LP40 Low Pass Filter Reviews