Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated .

Sweetwater
4.0 (12)
$209.00
Amazon
4.7 (7)
$209.00 New
$196.46 Used (Like New)
Reverb
$131.47 3 available Used
Thomann
4.1 (17)
$145.00 $144.00 $1.00 · All time low
Gear4Music
£139.00

Average Price: $185

Standard/Professional

$100

$276+

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Price History

Based on price data from 4 merchants for "Behringer Spring Reverberation 646 Spring Reverb Module". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

The Behringer Spring Reverberation 646 Spring Reverb Module is a nostalgic nod to the classic spring reverb units of the 1960s, now reimagined for the modern musician. Housed in a compact and portable design, this dual-spring module offers a lush and dynamic reverb experience that no digital emulation can replicate. Inspired by the renowned Grampian Reverberation Unit 636, the 646 delivers the iconic "boing" sound that has graced countless records, making it a timeless addition to any setup.

Whether you're a guitarist, keyboardist, or synth enthusiast, the 646's versatile connectivity options ensure seamless integration into your rig. It features balanced and unbalanced mic inputs, high and low-level line inputs, and dedicated footswitch inputs for muting the reverb path. The integrated overload circuit offers a warm analog overdrive, adding character and depth to your sound before it reaches the springs.

Perfect for both stage and studio environments, the module's Eurorack compatibility (72 HP) allows for expanded modularity, letting you tailor your setup to your creative needs. With controls for reverb rate, aux channel, and mic channel, you have full command over your soundscapes. Plus, its authentic analog circuitry guarantees that each note resonates with the rich warmth and character of vintage reverb.

Key Features:

  • Authentic reproduction of the Grampian Reverberation Unit Type 636 circuitry
  • Dual mechanical springs for rich room emulations
  • Overload circuit for a warm analog overdrive
  • Wet/dry mix control for adjusting reverb effect levels
  • Balanced and unbalanced mic inputs with high/low line inputs
  • Dedicated footswitch input for reverb path muting
  • Eurorack compatible (72 HP), removable from its desktop case

Product specs

Type Reverb Module with Overload Circuit
Analog/Digital Analog
Effects Types Dual-spring Reverb
Controls Reverberate Knob, AUX Channel Knob, Mic Channel Knob, Power Switch
Analog Inputs 4 x 1/8" (top high/low level line, balanced/unbalanced mic), 4 x 1/4" (back panel high/low level line, balanced/unbalanced mic)
Analog Outputs 1 x 1/8" TS (top), 1 x 1/4" TS (back panel)
Other I/O 1 x 1/8" (footswitch mute, top), 1 x 1/4" (footswitch mute, back panel)
Height 5.34"
Width 14.71"
Depth 3.4"
HP Size 72HP
Power Usage 12V/1000mA
Power Supply 12V DC Power Supply (included), Eurorack Compatible

FAQs

What type of reverb does the Behringer Spring Reverberation 646 offer?

The Behringer Spring Reverberation 646 features a dual-spring reverb, providing a classic analog spring reverb sound with rich tonal characteristics.

Can the Behringer Spring Reverberation 646 be used with a Eurorack system?

Yes, the Behringer Spring Reverberation 646 is Eurorack compatible, making it easy to integrate into modular setups for expanded sonic possibilities.

What are the main control options on the Behringer Spring Reverberation 646?

The Behringer Spring Reverberation 646 includes controls for Reverberate, AUX Channel, and Mic Channel, allowing for detailed manipulation of the reverb effect.

Does the Behringer Spring Reverberation 646 require a specific power supply?

The Behringer Spring Reverberation 646 operates on a 12V DC power supply, which is included with the unit, ensuring it has the necessary power to function correctly.

How does the overload circuit in the Behringer Spring Reverberation 646 affect the sound?

The overload circuit in the Behringer Spring Reverberation 646 can add a unique character to the reverb by introducing a controlled amount of distortion, enhancing the overall warmth and texture.

Ruhrpott Guitars

Ruhrpott Guitars

Behringer Spring Reverberation 636 Guitar Demo

Video thumbnail for Behringer Spring Reverberation 636 Guitar Demo by Ruhrpott Guitars

Behringer Spring Reverberation 636 Guitar Demo

Ruhrpott Guitars

Ruhrpott Guitars

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Behringer Spring Reverberation 646 Spring Reverb Module.

Mods and upgrades

  • The AO35 and AO44 reverberation amplifier units from M100 models can be added to an M3, with AO44 being less expensive and less prized by guitar amp enthusiasts.

    Source

Features and functionality

  • The AO35 is an all-tube unit, while the AO44 is a transistor/tube hybrid. Both can integrate with an M3 without invasive modifications.

    Source

Comparisons

  • Owners have noted that the Fender Marine Layer Reverb provides a unique sound when used with Hammonds, despite being digital.

    Source

Use cases and applications

  • The addition of an AO35 unit has been successfully implemented in an M3, offering a genuine spring reverb experience without digital alternatives.

    Source

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Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Behringer Spring Reverberation 646 Spring Reverb Module, it is most commonly used with the following gear.

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Community setups

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sofamusician

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1 alternative for Behringer Spring Reverberation 646 Spring Reverb Module, curated by the Equipboard community.

Grampian Reverberation Unit Type 636
Vintage or Discontinued high-end alternative

The Behringer Spring Reverberation is inspired in the vintage Grampian Reverberation Unit 636. This is stated in the documentation and reflected in the layout of the unit.

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Gear Guides

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