Pro-Grade Sound for Every Listener: The 4-Channel Precision Hub

The AIYIMA H4 is a high-performance 4-channel headphone amplifier designed to deliver transparent, high-fidelity audio to multiple users simultaneously. Whether used for studio monitoring, podcasting, or shared home listening, its independent volume controls and dual-input versatility make it an essential tool for any multi-user audio setup.

4-Channel Independent Control: Features four separate high-power amplifier stages, each equipped with its own dedicated volume knob for personalized monitoring.
Dual Input Versatility: Supports both 1/4" (6.35mm) TRS and RCA inputs, ensuring seamless compatibility with professional mixing consoles and consumer audio interfaces.
High-Fidelity Audio: Utilizes premium operational amplifiers (Op-Amps) to achieve ultra-low noise and distortion for a clean, immersive listening experience.
Rugged Metal Chassis: Housed in a durable, shielded metal enclosure that protects against electromagnetic interference and stands up to daily desktop use.
Universal Drive Capability: Engineered with high-output power to effectively drive a wide variety of headphones, from sensitive IEMs to high-impedance studio models.

Specification

Input Interfaces: 1 x 6.35mm TRS (Stereo), 1 x RCA (L/R)
Output Interfaces: 4 x 6.35mm Headphone Jacks
Input Impedance: 100kΩ (Unbalanced), 10kΩ (Balanced)
Frequency Response: 20Hz – 20kHz
Signal-to-Noise Ratio (SNR): >90dB
Total Harmonic Distortion (THD): <0.005%
Max Output Level: +20dBm
Power Supply: DC 12V
Dimensions: 103 x 57 x 45 mm
What's in the Box:
- 1 x AIYIMA H4 Headphone Amplifier
- 1 x 12V Power Adapter
- 1 x User Manual