500 Series Ladder Filter
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The Ladder - Moog Music’s first 500 series module!
Step up with The Ladder
The Ladder is a Dynamic Transistor Ladder Filter that is based on Bob
Moog's original ladder filter designs. Don't be fooled by its small
size, 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 is where things get really cool:
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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.
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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!
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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.
NOTE: 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.
You also have a hard wire Bypass for totally transparent routing and A/B comparison
The Ladder isn't your average filter. It's a big step up
Audio I/O: Balanced line level +19dBµ to -16dBµ input accepted
Filter Type: Dynamic Low Pass and Dynamic High Pass Transistor Ladder Filter
Envelope Follower RMS detector, bi-polar with variable attack & release
Attack: 250µS to 2.0 seconds
Release: 200mS to 400mS
Envelope Control: Positive and Negative Modulation
Input Impedance: 24KΩ balanced differential, 12KΩ unbalanced single ended.
Output Impedance: 50Ω differential, 25k single ended
Max. Output Level: Better than +22dBµ, balanced.
Drive Gain: 36dB
Output Gain: 36dB
Frequency Response Better than +/-0.5dB 20Hz – 20KHz pass band. Better than +/- 1.5dB 5Hz – 24KHz pass band
Noise Level: better than 73dB below +4dBu, 0-30kHz
Bypass: Hard Relay Bypass
Distortion: It sounds good…
Power Consumption: Less than 105mA +16V, less than 75mA -16V
*Specifications subject to change without notice
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.