Superlux HA4D Four-channel Headphone Amplifier

HA4D
quad-channel portable headphone amplifier

If there is only one headphone output on the recording interface, usually only the host can wear headphones, and the rest of the guests cannot use headphones to monitor, so a headphone amplifier is needed to solve this problem.

Intuitive Operation and Interface
HA4D is a stereo high-quality headphone amplifier that offers four independent 1/8" headphone output channels, each with a separate volume control knob and mute button, allowing for immediate volume adjustments based on live broadcast conditions. HA4D abandons the adapter power supply method commonly used in general ear amplifier products and uses a USB-C plug for power supply, which can be used not only with an external charger, but also with a power bank or computer, making it more convenient to use.

Features:

High-quality circuit design, 100 dB dynamic range, able to drive headphones to high volume without distortion

Four-way volume output, separate volume control knob and mute button

Lightweight design with a simple form
factor

Intuitive user interface
designed for podcasters

USB-C powered design for easier use

Specifications:

Gain: 24 dB

Peak shaving level: +20 dBu

Output impedance: 47

Audio frequency response: 10 - 50K Hz +/- 1.0

Dynamic Range: 100 dB

Signal-to-Noise Ratio: <0.03%

Input Impedance: 1,000

Power Supply: Type-C DC 5V

Surface Coating: Dark Grey

Size: 120×70×30mm (4.72"×2.75"×1.18") Net

Weight: 233g (8.21 oz.)

What's in the box
1 x Superlux HA4D Four-Channel Headphone Amplifier
1 x 0.5M length TRS (Tip-Ring-Sleeve) interconnection cable. (1/8" to 1/8")