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Alta Moda AM-20 Equalizer – No Longer Available

Single channel four-band parametric EQ module

Product Description

The Alta Moda Audio AM-20 is a high-performance, high fidelity four-band parametric equalizer module, designed for the API™ 500-series compatible rack systems.

State-of-the-art amplifier technology coupled with simple and elegant signal paths assure a smooth and robust sonic presence.

The four continuously variable and overlapping frequency bands give the AM-20 exceptional versatility for a wide range of audio applications.  The parametric center frequencies with continuously variable bandwidth adjustment offer the critical sonic and creative control needed for a wide variety of music styles and applications.


  • Four-band parametric equalization
  • Continuously variable frequency and gain controls
  • Continuously variable Q controls
  • Shelf/peak-dip selectable low frequency band
  • Low noise, low distortion amplifier technology
  • Hard-wire relay bypass
  • APITM 500-series rack compatible module


  • High frequency – Shelving type, continuously 4kHz to 20kHz
  • High-mid frequency – parametric, continuously 1kHz to 7.5kHz
  • Low-Mid frequency – parametric, continuously 65Hz to 2kHz
  • Low frequency – shelf or peak/dip, continuously 20Hz to 120Hz

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Single-Channel
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot
Digital I/O No
EQ Type Parametric

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.