WORKING CONDITION: Excellent. This module tests perfectly within an existing Eurorack system.

PHYSICAL CONDITION: Excellent: All metalwork, knobs, power pins, and iO jacks are in excellent physical condition.

INVENTORY #58372

BRAND: Macbeth

MODEL: X-Series Backend Filter

FUNCTION: Eurorack Synthesizer Module

PRODUCT DESCRIPTION: This listing is for a Macbeth X-Series Backend Filter Eurorack Synthesizer Module. The Macbeth Studio Systems X-Series Backend Filter is a premium, boutique Eurorack module that combines a three-channel mixer, a 24dB/octave low-pass filter, two envelopes, and a voltage-controlled amplifier (VCA) into a single 42 HP unit. Designed by Ken Macbeth, it is celebrated for its high-end, discrete transistor circuitry that provides a "warm and vibrant" vintage sound often compared to classic instruments like the Minimoog Model D.

SPECS:

• Discrete Signal Path: Built almost entirely with discrete transistors, half-watt carbon resistors, and high-quality milar/ceramic capacitors to ensure an authentic analog character.
• 24dB/Octave Low-Pass Filter: A self-oscillating filter with four distinct outputs accessible pre-VCA for versatile tonal shaping.
• Dual Envelopes: Dedicated envelope generators for the filter cutoff and the primary VCA, featuring attack, decay, and sustain with an optional final release stage.
• Dual VCAs: Includes a primary VCA for standard amplification and a secondary VCA that can be used for dynamic velocity control or creative amplitude shaping.
• Mk2 Enhancements: The updated MKII version features improved hand-selected capacitors, premium jack sockets for better reliability, and a feedback path that allows the main output to be fed back into the filter for saturated overdrive.
• Width: 42 HP.
• Current Draw: Typically 100 mA on the +12V rail and 60 mA on the -12V rail.
• Integration: Features a switchable CV and Gate bus on the rear panel for direct integration with the Doepfer standard power/bus system.

ACCESSORIES INCLUDED:  

• 16 Pin Eurorack Power Cable
• (6) Eurorack Screws & Washers

UNPACKAGED WEIGHT: 2 lbs.

UNPACKAGED DIMENSIONS: 5" x 3" x 9"