Doepfer A-138m 4x4 Matrix Mixer

A versatile 4×4 matrix mixer for blending and routing audio and CV signals throughout a Eurorack system. Each of the four inputs has an independent level control for each of the four outputs, allowing detailed signal distribution, crossfading and feedback-style patching.

Each output can be switched between unipolar and bipolar operation, so its controls can function as attenuators or polarisers. The module is DC-coupled, making it suitable for both audio and control voltage duties.

An internal PCB jumper allows the top four controls to operate as DC offset generators when Input 1 is unpatched, expanding its usefulness for modulation and signal-processing patches.

Features

• 4×4 matrix mixer
• Independent input level control for each output
• Switchable unipolar and bipolar operation
• Controls function as attenuators or polarisers, depending on mode
• DC-coupled for audio and CV signals
• Internal PCB jumpers enable DC offset control when Input 1 is not patched

Product Specs

• Item Number: 39749
• Make: Doepfer
• Model: A-138m
• Condition: Brand New
• Finish: Silver
• Categories: keyboards-and-synths ⇒ eurorack
• Function: Attenuator Mixer Quad
• Made In: Germany
• MPN: A-138m
• EAN: 4250711113858
• Modular Grid: Eurorack ⓘ ＋
• Dimensions*: 20 HP 20 mm deep
• Power*: 30 mA +12V 30 mA -12V 0 mA 5V

* User contributed details