Promos sur une sélection de produits de la marque Woodbrass

Woodbrass HA4-2

Name: HA4-2
Brand: Woodbrass
SKU: 400439
Price: 29.90 EUR
Availability: InStock
Rating: 5.0 (1 reviews)

29,90 €VAT incl.

3,10 € Ecotax included

Reference price

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ID : 400439

EAN : 3663903026415

This item is covered for 3 years

What you need to know

4 truly independent headphone outputs: dedicated volume control per channel and dual 6.35 mm and 3.5 mm outputs to avoid adapters.
Clean and faithful listening: 20 Hz to 20 kHz bandwidth and signal-to-noise ratio above 98 dB for transparent monitoring.
Immediate visual control: "signal" (green) and "clipping" (red) LEDs on each channel to maintain comfortable levels.
Simple connection to your setup: stereo RCA and 3.5 mm mini-jack inputs, plus a convenient stereo/mono mode depending on the source.

HA4-2

29,90 €VAT incl.

3,10 € Ecotax included

Reference price

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An essential tool for modern monitoring, in a compact format

In a studio, home studio, or mobile control room, headphone distribution is often the link that saves time and peace of mind. The Woodbrass HA4-2 fits this logic: concentrating the essentials of a stereo headphone splitter into a compact unit without sacrificing robustness or control readability. Its metal chassis and base with non-slip pads allow it to stay firmly in place on a desk, console, or tablet, even when several people adjust their volume.
Positioned as a simple and effective solution to multiply stereo listening for multiple users, the HA4-2 focuses on practicality: stable power supply, comfortable gain reserve, and ergonomics designed for quick handling. Where some compact splitters impose a single output format, this model makes daily life easier thanks to two headphone connectors per channel, a real plus in hybrid environments (studio headphones and earphones, musicians and speakers, classroom and control room).

Who the HA4-2 is for and in which applications it makes a difference

The HA4-2 is aimed at anyone needing a 4-channel headphone amplifier that is easy to deploy: creators in home studios, sound engineers in sessions, music production teachers, podcast teams, streamers, or small bands rehearsing with headphone monitoring. During recording, each person can adjust their level without touching the master volume, reducing interruptions and limiting "too loud / not loud enough" issues during takes.
In podcasting or interviews, it provides consistent listening comfort to participants while maintaining headroom to compensate for varying headphone sensitivities. In educational contexts, it is an effective tool for letting multiple students listen to a source while keeping a clear structure: one channel, one potentiometer, control LEDs. And for mobile setups, its compact size and metal construction make it easy to transport and integrate into a small production station.

Technical specifications

Number of channels	4	Power supply	DC 12 V
Rackable	No	Weight	343 g
Color	Black	Dimensions (mm)	128 x 83 x 50

Customer reviews

Based on 1 review

5 stars, 1 review
4 stars, 0 reviews
3 stars, 0 reviews
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1 star, 0 reviews

Kon� I.03/02/2026

When I unpacked it, I was scared. I said to myself “A Jack is missing! It is the first of the inputs to put audio splitter!”. In fact it is very discreet because it is a 3.5 mm stereo mini-jack. The amp is of good quality for a small price.
We do not all have the same auditory sensitivity, it is always welcome to be able to modulate the volumes for each of the 4 headsets as needed.
It's a must-have device in a mini podcast studio.
Automatically translated

Questions frequently asked

How many headphones can be connected to the HA4-2?

Four independent volume channels are available, each equipped with a 6.35 mm stereo jack output and a 3.5 mm stereo mini-jack output. Therefore, two headphones can be physically connected per channel, sharing the same volume setting for both outputs.

Is the HA4-2 compatible with a 16-ohm headphone?

The minimum specified output impedance is 16 ohms per channel. It can therefore drive headphones with this impedance or higher.

What audio inputs are available on this headphone amplifier?

The stereo input is provided via left/right RCA and a 3.5 mm stereo mini-jack. This connectivity allows connection to an audio interface, mixer, or player featuring one of these outputs.

Can the volume of each musician be adjusted separately?

Each channel has its own volume control knob. Green and red LEDs indicate respectively the presence of signal and clipping on each channel.

What power and format does the HA4-2 have?

The maximum power is rated at 100 mW per each of the four channels, with a maximum gain of +22 dB per output. The metal enclosure measures 12.8 x 5 x 8.3 cm and weighs 343 g excluding power supply. A stereo/mono selector is integrated to adapt listening to a mono source or for mono compatibility monitoring.