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Product Information
Key Specifications/ Special Features
The LQ-02 four channel headphone distribution amplifier is a 1-in 4-out headphone distribution device designed specifically for multi headphone monitoring scenarios such as recording studios, live streaming teams, teaching and training, and band rehearsals. Adopting professional grade audio amplification circuit, supporting mono/stereo signal switching, each channel is equipped with independent volume control, providing stable and clear audio signal distribution solution for multi-user simultaneous monitoring with ultra-low distortion and high signal-to-noise ratio of pure sound quality. It is a cost-effective choice for multi headphone monitoring scenarios.
1. Professional Audio Performance, Restoring Pure Monitoring Sound Quality
Frequency Response: 20Hz~20kHz (±1dB), fully covering the human-audible frequency range with rich bass, transparent midrange, and clear treble, without frequency coloration, accurately restoring audio source details;
Signal-to-Noise Ratio (SNR): >90dB, with extremely low noise floor and a clean, noise-free background, presenting even subtle audio details clearly to meet professional monitoring needs;
Total Harmonic Distortion (THD): Only 0.05%, with almost no distortion during signal transmission, restoring vocals and instrument sounds truthfully and naturally without coloration in monitoring;
Wide Level Compatibility: Input level ≤+10dBu, output level ≤+12dBu, compatible with signal levels of various devices such as sound cards, mixers, and players, allowing stable connection without additional conversion.
2. 1-In 4-Out Independent Channel Control, Flexible Distribution of Monitoring Signals
Supports 1 audio input (INPUT) and 4 headphone outputs (1-4). Each headphone channel is equipped with an independent volume knob (0-10 level adjustment), allowing separate control of the monitoring volume for each headphone. It flexibly adapts to the volume needs of different users and avoids mutual interference.
3. Mono/Stereo Dual-Mode Switching
Equipped with a MONO/STEREO switch, supporting switching between mono and stereo signal modes:
4. Pure Analog Amplifier Circuit, Zero Latency and Interference-Free
Adopts a pure analog audio amplifier circuit with no digital latency or compression coloration, ensuring zero delay in signal transmission. Combined with high input impedance (>1kΩ) and low output impedance (<600Ω) design, it effectively reduces signal loss and interference, ensuring that the monitoring signal for each headphone is pure, stable, free from crosstalk and noise.
5. DC5V Power Supply, Portable and Plug-and-Play
Adopts a universal DC5V power supply design, supporting multiple power supply methods such as USB power adapters, power banks, and computer USB ports. No complex installation is required, and it works as soon as it is connected to the device. It adapts to scenarios such as recording studios, outdoor rehearsals, and mobile live streaming, freeing users from fixed power supply restrictions.
1. Ultra-Mini Portable Body
Compact and lightweight design, weighing only 0.28kg, with a palm-sized volume. No rack installation is required; it can be directly placed on the desktop or carried around, suitable for mobile scenarios;
Rugged casing design with strong anti-interference capability, suitable for frequent movement and multi-scenario use.
2. Clear and Intuitive Operation Layout
The front panel is equipped with 4 independent volume adjustment knobs (1-4). The knobs have clear scales and smooth adjustment, allowing precise control of the monitoring volume for each headphone;
Independent power switch (ON) and power indicator light for one-click control of device start/stop, with status clearly visible;
The top interface layout is clear, with DC5V power port, 4 headphone output interfaces, and 1 audio input interface arranged in separate sections, making it easy to get started without additional instructions;
Mono/stereo switch allows one-click switching of signal modes to adapt to different monitoring scenario needs.
3. Multi-Scenario Compatible Interface Design
1 audio input interface supports multiple interface types such as 3.5mm/TRS, allowing connection to audio source devices such as sound cards, mixers, players, and computers;
4 headphone output interfaces support 3.5mm headphone plugs, allowing simultaneous connection of 4 pairs of headphones, adapting to multi-user scenarios such as recording studio monitoring, teaching and training, and band rehearsals.
LQ02*1
power adapter*1
Weight: 0.28kg
specification 13.7*13.7*5.2cm
✅ Recording Studio / Workspace Monitoring: Supports simultaneous monitoring of the same audio source by multiple users with independent volume control, adapting to simultaneous monitoring of mixing effects by recording engineers, singers, and musicians;
✅ Live Streaming Teams / Multi-Camera Live Streaming: Can connect the headphones of hosts, directors, and technical personnel at the same time to achieve synchronous monitoring of live audio and avoid mutual volume interference;
✅ Teaching & Training / Classroom Teaching: Supports simultaneous monitoring of teaching audio by multiple people. Mono mode avoids channel deviation, adapting to scenarios such as language teaching and music training;
✅ Band Rehearsals / Small Performances: Can connect multiple pairs of headphones simultaneously for band members to monitor accompaniment and instrument sounds. Independent volume control adapts to the monitoring needs of different instruments;
✅ Home Multi-User Music Listening / Audio-Visual Sharing: Supports simultaneous monitoring of the same audio by multiple people. Stereo mode restores audio-visual effects, while mono mode adapts to multi-person sharing scenarios.
Audio Performance
20Hz-20kHz frequency response + >90dB SNR + 0.05% low distortion for pure, uncolored monitoring sound quality.
Distribution Function
1-in 4-out independent channel control with individual volume adjustment for each channel, supporting simultaneous monitoring by 4 pairs of headphones.
Mode Adaptation
Mono/stereo dual-mode switching, adapting to different scenarios of professional monitoring and multi-person sharing.
Connection Compatibility
Wide level compatibility + high input / low output impedance, adapting to various devices such as sound cards, mixers, and players.
Portability
DC5V universal power supply + 0.28kg mini body, plug-and-play, suitable for mobile scenarios.
Easy Operation
Pure analog circuit + intuitive knobs and switches, no complex settings required, beginners can get started quickly.
The LQ-02 four channel headphone distribution amplifier is a 1-in 4-out headphone distribution device designed specifically for multi headphone monitoring scenarios such as recording studios, live streaming teams, teaching and training, and band rehearsals. Adopting professional grade audio amplification circuit, supporting mono/stereo signal switching, each channel is equipped with independent volume control, providing stable and clear audio signal distribution solution for multi-user simultaneous monitoring with ultra-low distortion and high signal-to-noise ratio of pure sound quality. It is a cost-effective choice for multi headphone monitoring scenarios.
1. Professional Audio Performance, Restoring Pure Monitoring Sound Quality
Frequency Response: 20Hz~20kHz (±1dB), fully covering the human-audible frequency range with rich bass, transparent midrange, and clear treble, without frequency coloration, accurately restoring audio source details;
Signal-to-Noise Ratio (SNR): >90dB, with extremely low noise floor and a clean, noise-free background, presenting even subtle audio details clearly to meet professional monitoring needs;
Total Harmonic Distortion (THD): Only 0.05%, with almost no distortion during signal transmission, restoring vocals and instrument sounds truthfully and naturally without coloration in monitoring;
Wide Level Compatibility: Input level ≤+10dBu, output level ≤+12dBu, compatible with signal levels of various devices such as sound cards, mixers, and players, allowing stable connection without additional conversion.
2. 1-In 4-Out Independent Channel Control, Flexible Distribution of Monitoring Signals
Supports 1 audio input (INPUT) and 4 headphone outputs (1-4). Each headphone channel is equipped with an independent volume knob (0-10 level adjustment), allowing separate control of the monitoring volume for each headphone. It flexibly adapts to the volume needs of different users and avoids mutual interference.
3. Mono/Stereo Dual-Mode Switching
Equipped with a MONO/STEREO switch, supporting switching between mono and stereo signal modes:
4. Pure Analog Amplifier Circuit, Zero Latency and Interference-Free
Adopts a pure analog audio amplifier circuit with no digital latency or compression coloration, ensuring zero delay in signal transmission. Combined with high input impedance (>1kΩ) and low output impedance (<600Ω) design, it effectively reduces signal loss and interference, ensuring that the monitoring signal for each headphone is pure, stable, free from crosstalk and noise.
5. DC5V Power Supply, Portable and Plug-and-Play
Adopts a universal DC5V power supply design, supporting multiple power supply methods such as USB power adapters, power banks, and computer USB ports. No complex installation is required, and it works as soon as it is connected to the device. It adapts to scenarios such as recording studios, outdoor rehearsals, and mobile live streaming, freeing users from fixed power supply restrictions.
1. Ultra-Mini Portable Body
Compact and lightweight design, weighing only 0.28kg, with a palm-sized volume. No rack installation is required; it can be directly placed on the desktop or carried around, suitable for mobile scenarios;
Rugged casing design with strong anti-interference capability, suitable for frequent movement and multi-scenario use.
2. Clear and Intuitive Operation Layout
The front panel is equipped with 4 independent volume adjustment knobs (1-4). The knobs have clear scales and smooth adjustment, allowing precise control of the monitoring volume for each headphone;
Independent power switch (ON) and power indicator light for one-click control of device start/stop, with status clearly visible;
The top interface layout is clear, with DC5V power port, 4 headphone output interfaces, and 1 audio input interface arranged in separate sections, making it easy to get started without additional instructions;
Mono/stereo switch allows one-click switching of signal modes to adapt to different monitoring scenario needs.
3. Multi-Scenario Compatible Interface Design
1 audio input interface supports multiple interface types such as 3.5mm/TRS, allowing connection to audio source devices such as sound cards, mixers, players, and computers;
4 headphone output interfaces support 3.5mm headphone plugs, allowing simultaneous connection of 4 pairs of headphones, adapting to multi-user scenarios such as recording studio monitoring, teaching and training, and band rehearsals.
LQ02*1
power adapter*1
Weight: 0.28kg
specification 13.7*13.7*5.2cm
✅ Recording Studio / Workspace Monitoring: Supports simultaneous monitoring of the same audio source by multiple users with independent volume control, adapting to simultaneous monitoring of mixing effects by recording engineers, singers, and musicians;
✅ Live Streaming Teams / Multi-Camera Live Streaming: Can connect the headphones of hosts, directors, and technical personnel at the same time to achieve synchronous monitoring of live audio and avoid mutual volume interference;
✅ Teaching & Training / Classroom Teaching: Supports simultaneous monitoring of teaching audio by multiple people. Mono mode avoids channel deviation, adapting to scenarios such as language teaching and music training;
✅ Band Rehearsals / Small Performances: Can connect multiple pairs of headphones simultaneously for band members to monitor accompaniment and instrument sounds. Independent volume control adapts to the monitoring needs of different instruments;
✅ Home Multi-User Music Listening / Audio-Visual Sharing: Supports simultaneous monitoring of the same audio by multiple people. Stereo mode restores audio-visual effects, while mono mode adapts to multi-person sharing scenarios.
Audio Performance
20Hz-20kHz frequency response + >90dB SNR + 0.05% low distortion for pure, uncolored monitoring sound quality.
Distribution Function
1-in 4-out independent channel control with individual volume adjustment for each channel, supporting simultaneous monitoring by 4 pairs of headphones.
Mode Adaptation
Mono/stereo dual-mode switching, adapting to different scenarios of professional monitoring and multi-person sharing.
Connection Compatibility
Wide level compatibility + high input / low output impedance, adapting to various devices such as sound cards, mixers, and players.
Portability
DC5V universal power supply + 0.28kg mini body, plug-and-play, suitable for mobile scenarios.
Easy Operation
Pure analog circuit + intuitive knobs and switches, no complex settings required, beginners can get started quickly.
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