DOEPFER A-135-5V Polyphonic Mixer Eurorack Demo Circuit

( Brand: Doepfer ), ( Model: A-135-5V POLYPHONIC MIXER SUBOCTAVE GENERATOR ), ( Type: Modular Synthesizer ), ( Manufacturer Part Number: A-135-5V )

Review DOEPFER Polyphonic Mixer Vintage Edition Eurorack Demo Perfect Circuit

The Doepfer A-135-5V is a polyphonic mixer designed for use in Eurorack modular synthesizer systems. This versatile and powerful module allows for the mixing and routing of up to five monophonic or polyphonic signals, making it an essential tool for complex sound design and live performance applications.

At its core, the A-135-5V features five fully independent mixer channels, each with its own dedicated volume control. These channels can be used to mix monophonic signals from various sources, such as oscillators, filters, or envelopes, or they can be configured to handle polyphonic signals from a single voice or multiple voices from a polyphonic synthesizer.

One of the standout features of the A-135-5V is its ability to handle both positive and negative voltage signals, making it compatible with a wide range of Eurorack modules. Additionally, the module is designed to operate on a 5V power rail, ensuring compatibility with standard Eurorack power supplies.

Each channel on the A-135-5V is equipped with a 3-position switch for selecting signal routing options. The first position routes the signal directly to the output, while the second position inverts the polarity of the signal before it is mixed. The third position sends the signal to a summing bus, which can be used to mix multiple channels together.

The A-135-5V also includes a global master volume control, allowing the output level of the entire mixer to be adjusted to suit the needs of your system. The module is housed in a standard Eurorack width format, measuring 12 HP, and features sturdy aluminum panels and high-quality potentiometers for reliable and accurate operation.

Overall, the Doepfer A-135-5V is an indispensable tool for any Eurorack modular synthesizer setup, offering the ability to mix and route multiple monophonic or polyphonic signals with ease and flexibility. Its robust design, compatibility with both positive and negative voltage signals, and versatile routing options make it a must-have for sound designers, performers, and electronic music enthusiasts alike.

The Doepfer A-135-5V is a polyphonic mixer designed for Eurorack modular synthesizers. This mixer allows users to mix multiple audio sources, making it an essential component for creating complex sounds and compositions. Let's examine its pros and cons:

1. Polyphonic: The Doepfer A-135-5V can mix multiple audio sources (up to 5) polyphonically, which is crucial for creating intricate sounds in modular synthesizers.

2. Voltage Controlled: All mix levels are voltage controlled, enabling users to modify the mix levels using CV inputs, adding another dimension of expression and control to their modular setup.

3. Flexible: It offers a choice of summing or mixing mode, allowing users to decide how they want their audio sources combined.

4. Compact: With a width of only 35HP, the Doepfer A-135-5V is a space-saving solution for those looking to build a compact yet versatile modular system.

5. Affordable: Compared to other polyphonic mixers in the Eurorack market, the Doepfer A-135-5V is relatively affordable, making it an accessible option for hobbyists and enthusiasts.

1. Limited Channels: The mixer only offers 5 channels, which might not be enough for some users who require more mixing capabilities.

2. No Individual Gain Control: Each channel has a common gain control, meaning users cannot adjust the gain independently for each channel.

3. No Mute or Solo Function: There is no individual mute or solo function for each channel, limiting the flexibility for sound designers and performers.

The Doepfer A-135-5V is an excellent addition for modular synthesizers looking for a compact, polyphonic mixer with voltage-controlled mix levels. Its affordability makes it an attractive option for those building their first modular system or expanding their existing one. However, it may not be suitable for users requiring more mixing channels, independent gain control, or mute/solo functions.

If you're in the market for a compact, affordable, and versatile polyphonic mixer for your Eurorack modular synthesizer and only require 5 channels, the Doepfer A-135-5V is a solid choice. However, if you need more channels, individual gain control, or mute/solo functions, consider exploring other options in the Eurorack market to find a mixer that better fits your specific needs.

part # a1355v price

• $271.00

specifications synthesasha:

• brand: Doepfer
• model#: A-135-5V POLYPHONIC MIXER SUBOCTAVE GENERATOR
• type: Modular Synthesizer
• manufacturer part number: A-135-5V

offer synthesasha:

• quantity: 2
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: January 20, 2026

returns synthesasha:

• time: 30 Days
• method: Money back
• paid by: Buyer
• policy: Returns Accepted

general synthesasha:

• Musical Instruments Gear > Pro Audio Equipment > Synthesizers
• condition: Open box

seller synthesasha:

• # reviews: 50125
• rating: 99.5%

shipping synthesasha:

• class: Standard
• cost: $0.00
• service: Standard
• type: Fixed
• transit: 3-8 Days

payments synthesasha:

• wallet: Apple-pay
• credit card: Mastercard
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