Doepfer A-104 Quad Resonance Filter
Prices include 21% VAT based on your delivery country (Netherlands).
Price without VAT: €127,27
EU businesses outside the Netherlands can purchase with 0% VAT using a valid EU VAT number.
VAT is automatically removed after VAT validation during checkout.
Overview & Tech Specs
Overview & Tech Specs
Doepfer A-104 Quad Resonance Filter
The Doepfer A-104 is a quad bandpass filter based on the filter circuitry found in classic vintage vocoders. It features four parallel fixed-frequency bandpass filters, each with its own volume control, allowing you to emphasize specific frequency bands for sculpting formant-like textures, harmonically rich drones, or noise-based timbres.
This module excels at shaping sound in creative and expressive ways. Whether you're processing noise, pads, or complex audio sources, the A-104 adds depth and spectral character to any Eurorack system.
Key Features:
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4 parallel fixed bandpass filters
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Inspired by classic analog vocoder circuits
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Individual volume control per band
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Ideal for formant shaping, texture layering, and timbral coloration
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Great for experimental, vocal-like, and noise-driven sound design
Delivery & Returns
Delivery & Returns
Delivery timing depends on the product’s availability status:
- In Store
Available at our Rotterdam store and shipped the same day when ordered before 15:00. - In Warehouse
Available from supplier's warehouse. The estimated dispatch or delivery timeframe is shown next to the product availability. - For Backorder
The product can be ordered, but availability and delivery timing may vary. Please contact our team for product-specific information. - Pre-Order
The product is not yet available for immediate dispatch. Please contact our team for the latest expected availability date.
All available shipping methods, costs and estimated delivery times are shown at checkout.
Returns
Eligible unused products can be returned within 14 days of delivery. Products must be returned in their original condition, including all accessories and original packaging.
Some exclusions may apply, including opened software or custom orders. Please contact us before returning an item so we can provide the correct instructions.
If your order arrives damaged or incorrect, contact us as soon as possible with photos of the product and packaging. We’ll help arrange the appropriate replacement, repair or refund.
Warranty & Support
Warranty & Support
All new products include a 2-year warranty.
If you experience a fault, contact our team with your order number and a description of the issue. We’ll help troubleshoot the problem and, where necessary, arrange a repair, replacement or warranty claim.
The warranty does not cover accidental damage, misuse, normal wear and tear, incorrect installation or unauthorised repairs.
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