Moog Music’s first 500 series module is ready for action.

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The Ladder is a Dynamic Transistor Ladder Filter that is based on Bob Moog's original ladder filter designs. The Ladder is a powerful and fantastic sound sculpting tool that allows for creative and unique sound shifting and shaping. By design, The Ladder sports the smoothest all analog Low Pass and High Pass filter section. Simply adjust the Cutoff knob to add vibe, warmth or tonal adjustment. Choose LP to add analog vibe and warmth to a sound or select HP for sweetening and relieving the heft of a sound.

The Envelope section of The Ladder features many advanced adjustments. The Variable Attack and Release controls allow you to perfectly dial in the behavior of The Ladder's envelope section. Use these controls to open and close the envelope as fast as lightning, or slow as molasses. Use the Amount control in Positive or Negative mode for mild to extreme sound shaping and manipulation. From slight timbral excitement and voicing to extreme compression-like behavior. Even reversed filter action is achievable! The Resonance control used with The Ladder’s other features allows for the creation of sweet, dynamic and even speech like behavior. Use it to tune The Ladder to a sound source… or not. You can excite or accentuate specific frequencies as well as create completely new unique and wild sounds. The Ladder's Resonance control will push the unit into self-oscillation. This can be used for effect if desired.

The 2Pole/4Pole switch allows you to select how aggressive your filter slope is. 2 pole is equal to 12db per octave which is smooth and sweet, while 4 pole is 24db per octave which is hard and aggressive.

Moog 500 Series Ladder Filter Features:

Moog Music’s first 500 series module
Based on Bob Moog's original ladder filter designs
Advanced envelope section with multiple control options
2Pole/4Pole switch allows aggressive filter slope selections
Resonance control used with other features for dynamic and speech like behavior
Hard wire Bypass for totally transparent routing and A/B comparison

Moog 500 Series Ladder Filter Specifications:

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 24KO balanced differential, 12KO unbalanced single ended
Output Impedance: Nominally 50O differential 25O 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

Moog 500 Series Ladder Filter

LIMITED WARRANTY
Moog music warrants each instrument to be free of defects in material and workmanship for a period of one year after delivery to the retail purchaser. The warranty is void if the instrument has been modified in any manner other than in accordance with written instructions from Moog Music, Inc., of if the defect or failure is judged by Moog Music, Inc., to be caused by normal wear, accident, neglect, or conditions of operation other than those specified in the instruction manual.

This warranty is subject to verification by Moog Music, Inc., that a defect or failure exists and that the original purchaser complies with the following:
1. Warranty Registration Card must be returned by the purchaser to Moog Music, Inc., within 10 days of retail purchase.
2. Moog Music, Inc., must be notified by telephone, or in writing, of the problem to secure authorization to return the instrument to the factory or warranty center.
3. The instrument must be shipped prepaid. It will be returned with shipping charges prepaid by Moog Music, Inc.

MOOG MUSIC, INC., MAKES NO OTHER EXPRESS WARRANTY OF ANY KIND WHATSOEVER. ALL IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, EXCEEDING THE DURATION OF THE AFORESTATED OBLIGATIONS ARE HEREBY DISCLAIMED AND EXCLUDED FROM THIS WARRANTY. NORLIN SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Moog Music, Inc., authorizes no persons to assume for it any warranty or other liability in connection with the sale of Moog Music, Inc., instruments.

Moog Music, Inc., reserves the right to make changes in design at anytime without incurring any obligation to install same on units previously purchased.

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