• Moog: 500 Series Ladder Filter
  • Moog: 500 Series Ladder Filter

500 Series Ladder Filter

↳ 1st ever Moog filter for 500 series systems

Filter $549.00
Earn up to 5490 Reward Points with this purchase! more info


  • 1st ever Moog module designed for 500 series systems
  • dynamic transistor Ladder Filter based on Bob Moog's original ladder filter designs
  • powerful sound sculpting tool for creative and unique sound shifting and shaping
  • smooth all analog Low Pass and High Pass filter section
  • variable Attack and Release controls allow you to perfectly dial in the behavior of The Ladder's envelope section
  • Resonance control
  • 2Pole/4Pole switch allows you to select how aggressive your filter slope acts
  • made for 500 Series systems only, not compatible Eurorack or modular synth systems

"The Ladder brings a new dynamic dimension to the 500 Series. It smooths out the harshest of tracks and adds warmth and body to any sound. The Ladder excites dull or lifeless tracks, and has the power to shape sound in a way that is excitingly unique." - Moog


  • Audio I/O: Balanced line level via 500 rack. +19dBµ to -16dBµ input accepted
  • Filter Type: 2 and 4 pole dynamic low-pass & high-pass transistor Ladder Filter
  • Envelope Type: RMS detector, bi-polar with variable attack & release
  • Attack time:    Better than 250µS to 2.0 seconds depending on program material and level
  • Release time:  Better than 150mS to 2.0S depending on program material and level
  • Envelope Control: Positive and Negative Modulation
  • Input Impedance: Nominally 24KΩ balanced differential, 12KΩ unbalanced single ended
  • Output Impedance: Nominally 50Ω  differential 25Ω single ended
  • Max. Output Level: Better than +22dBµ, balanced
  • Drive Gain: 36dB Range of control
  • Output Gain: 36dB Range of control
  • Frequency Response: Better than +/-0.5dB 20Hz – 20KHz pass band.  Better than +/- 1.5dB 5Hz – 24KHz pass band
  • Bypass: Hard Relay True Bypass
  • Power Consumption: Less than 105mA +16V, less than 75mA -16V

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