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interface modules

Doepfer A-139-2 Headphone Amplifier

4.1 out of 5 stars from 29 customer ratings
Doepfer
Doepfer A-139-2 Headphone Amplifier
Doepfer A-139-2 Headphone Amplifier
Doepfer A-139-2 Headphone Amplifier

2-Channel Headphone Amplifier

  • In the Eurorack module format
  • 2 Inputs with separate level controls
  • Input 1 is normalised to input 2 (switched jack input 2)
  • Shared volume control
  • Headphone output 6.3 mm jack
  • Max. output power approx. 2 W per channel (at 8 ohm load)
  • Width: 6 HP / 6 HP / 30 mm
  • Depth: 40 mm
30-Day Money-Back Guarantee
3-Year Thomann Warranty
  • Available since July 2015
  • Item number 367624
  • Sales Unit 1 piece(s)
  • Width 6 TE / HP
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Doepfer A-139-2 Headphone Amplifier
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Doepfer A-139-2 Headphone Amplifier
29
Doepfer A-139-2 Headphone Amplifier

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764 kr
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764 kr
All prices incl. VAT
In stock
1
53
Sales Rank
in Interface Modules

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29 Customer ratings

5 16 Customers 4 7 Customers 3 2 Customers 2 0 Customers 1 4 Customers
4.1 / 5
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23 Reviews

A
Doepfer A-139-2 Headphone Amplifier
Anonymous 06.08.2015
A very basic headphone module but works perfectly. I bought this module to replace my previous Eurorack output/headphone module and the Doepfer module offers greater volume which I required.

The two audio inputs have individual level controls, allowing you to get a good balance in your headphones.

No frills here, but totally recommended.
3
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S
Cheapest you'll find it
SolideSnaak 13.05.2020
Useful little module if you plan on listening to your modular system through headphones or small speakers, and you won't find it cheaper anywhere (at least I couldn't).

If I would have to give one criticism is that they didn't use shrouded headers on the power connector so you could theoretically plug in your power backwards, but it's clearly marked so that shouldn't happen.
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AF
Warning. This module can kill your eurorack!
Andrew FJ 31.08.2023
One amp IC is constantly running at 122°C. If in contact with ribbon cable it can cause a short circuit, and I've read on the internet that some people had this unfortunate experience with A-139. Also, the build quality is ok but there's hardly aby noise filtering components at the output which is why module so incredibly noisy. I don't recommend it simply due to risk of burning your entire synth.
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T
Best headphone amp for the money
Tr!pt!kon 19.12.2025
Very verstile en very good soundquality!
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