collapse expand iconDescription

The Behringer 305 EQ/Mixer/Output module brings parametric EQ, mixing and output capabilities to your Eurorack modular synth setup. With its vintage-inspired circuit modeling, the 305 authentically recreates the sound of the classic Roland System 100M from the 1980s. Offering extensive tone-shaping options, the 305 lets you sculpt the sound of your modular rig.

Sculpt Your Sound With 4-Band Parametric EQ

The 305 features a 4-channel parametric EQ section, giving you precise control over your signal's frequency response. With adjustable parameters for level, bandwidth and center frequency across a range from 20Hz to 20kHz, you can target specific frequencies to cut or boost. Engage the EQ/Bypass switch to compare your shaped signal to the dry input.

Intuitive Mixing Capabilities

In addition to EQ, the 305 provides mixing capabilities with individual pan and level controls over 4 input channels. Sum your signals to a stereo or mono output via the 3.5mm and 1/4" jacks. Monitor the overall mix with the dedicated headphone output and level control.

Eurorack Compatible Design

The 305 integrates seamlessly into your modular rig, fitting into a standard 24HP Eurorack case. Just connect the power cables to your case's supply. Mix and match the 305 with oscillators, filters, sequencers and more to customize your modular synth workflow.

Vintage-Inspired Circuit Modeling

With authentic modeling of the System 100M circuitry, the 305 imparts coveted vintage character to your modular patches. Dial in the classic Roland tones of the '80s or push the capabilities into modern sonic territory.

Behringer 305 Parametric EQ, Mixer and Output Eurorack Module
Behringer 305 Parametric EQ, Mixer and Output Eurorack Module
Behringer 305 Parametric EQ, Mixer and Output Eurorack Module

collapse expand iconFeatures

  • Combination of parametric EQ, mixer/oscillator and headphone amplifier module from the early '80s
  • Authentic reproduction of original System 100M circuitry
  • 4-channel EQ section with level, bandwidth and frequency controls plus direct out for maximum flexibility
  • 4-input mono mixer with pan and 2 adjustable mono/stereo master outputs
  • Tuning oscillator with 3 selectable frequencies (200/400/800 Hz) and level control
  • Independent headphone output with level control
  • Bypass switch for quick comparison of EQ signals
  • 25 controls give you real-time access to all important parameters
  • Eurorack specs: 20 HP, 120 mA +12 V, 100 mA -12 V

collapse expand iconSpecs

InputsEQ input
  • Type: 3.5 mm TS jack, AC coupled
  • Impedance: 40 kΩ, unbalanced
  • Max input level: +18 dBu
Mixer input
  • Type: 4 x 3.5 mm TS jacks, AC coupled
  • Impedance: > 25 kΩ, unbalanced
  • Max input level: +21 dBu
OutputsEQ output
  • Type: 2 x 3.5 mm TS jacks, DC coupled
  • Impedance: 330 Ω, unbalanced
  • Max output level: +18 dBu
  • Noise with EQ set flat: < -90 dBu, 22 Hz to 22 kHz
Master output
  • Type: 2 x 3.5 mm TS jacks 2 x ¼" TS jacks AC coupled
  • Impedance: 700 Ω, unbalanced
  • Max output level: +8 dBu
  • Noise with 1 channel open: < -100 dBu, 22 Hz - 22 kHz
Phones output
  • Type: 3.5 mm TRS stereo jack, AC coupled
  • Impedance: 50 Ω, unbalanced
  • Max output level: +18 dBu
Controls
  • EQ level: ±12 dB, 0 dB center detent
  • EQ bandwidth Q range: 0.9 to 9
  • EQ frequency range 1: 20 Hz to 200 Hz
  • EQ frequency range 2: 100 Hz to 1 kHz
  • EQ frequency range 3: 500 Hz to 5 kHz
  • EQ frequency range 4: 2 kHz to 20 kHz
  • EQ bypass switch: Off / on
  • OSC frequency switch: Off / 220 Hz / 440 Hz / 880 Hz
  • OSC mix level: -∞ to unity gain
  • Mixer input fader: -∞ to unity gain
  • Mixer panpot: -∞ to unity gain, -3 dB center detent
  • Master volume: -∞ to -10 dBu
  • Phones level: -∞ to +10 dBu
Power
  • Power supply: Eurorack
  • Current draw: 120 mA (+12 V), 100 mA (-12 V)
Physical
  • Dimensions: 2.1" x 4.8" x 5.1"
  • Rack units: 24 HP
  • Weight: 0.62 lbs