ADDAC 604 Dual Filter

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ADDAC 604 Dual Filter

ADDAC

604 Dual Filter

4.5 Expert Rating

Product Info

Article Number: 505636
Brand: ADDAC
Model: 604 Dual Filter
Price: $229.90

* Prices may vary. Check retailer for current pricing and availability.

The ADDAC 604 is a surprisingly capable dual filter module that delivers a warm, classic analog sound without taking up a ton of space. It’s a fantastic entry point for those exploring filter design or needing a compact stereo filtering solution, especially those building smaller, focused systems.

Product Description

  • ADDAC 604 Dual Filter
  • Eurorack Module
  • Analogue two-channel multimode filter
  • Switchable stereo mode
  • Per channel: Controls for cutoff and resonance
  • cutoff CV input with attenuator
  • audio input and outputs for highpass
  • bandpass and lowpass
  • Current consumption: 70 mA (+12 V) / 70 mA (-12 V)
  • Width: 6 HP
  • Depth: 40 mm
PROS
  • • Warm, analog tone with a distinct vintage character
  • • Stereo operation expands sonic possibilities significantly
  • • Compact 6HP footprint maximizes rack space efficiency
  • • Cutoff CV input offers excellent modulation control
CONS
  • • Limited resonance range compared to higher-end filters
  • • Build quality is adequate, but lacks premium component feel
  • • Filter modes, while useful, aren’t exceptionally unique

Product Video

Key Features

Filter Type Multimode Analog
Modes Highpass, Bandpass, Lowpass, Stereo
HP Width 6
Depth 40 mm
Power Draw 70 mA (+12V) / 70 mA (-12V)
CV Inputs One per channel with attenuator

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Frequently Asked Questions

Stereo mode offers a cohesive, widened sound, but it's not a true binaural effect; it’s more about blending two filtered signals.
The attenuator provides decent control, though very fine adjustments might require additional external modules for extreme precision.
The 604 offers a solid, vintage flavor at a more budget-friendly price; Shimmer is far more complex and versatile, but also considerably more expensive.

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