LQ04

LQ-04 is a multifunctional audio device that integrates 4-channel input mixing and 4-channel headphone distribution amplification. It is designed for complex audio scenes such as recording studios, live streaming teams, band rehearsals, and teaching and training. It supports multi audio mixing, independent channel control, headphone monitoring and distribution, and has dual functions of a mixer and headphone amplifier. With professional grade sound quality and flexible signal processing capabilities, it provides a one-stop audio solution for multi-user and multi audio scenarios.

Core Technologies & Performance Highlights

1. Professional Audio Performance, Pure and Uncolored 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;

Signal-to-Noise Ratio (SNR): >90dB, with extremely low noise floor and a clean, noise-free background, presenting even subtle audio details clearly;

Total Harmonic Distortion (THD): Only 0.05%, with almost no distortion during signal transmission and mixing, restoring vocals and instrument sounds truthfully and naturally;

Wide Level Compatibility: Input level ≤+10dBu, output level ≤+12dBu, compatible with signal levels of various devices such as sound cards, mixers, wireless microphones, instruments, and players, allowing stable connection without additional conversion.

2. 4-In 4-Out Multi-Functional Signal Processing

4 Audio Inputs: Supports 4 independent audio source inputs (e.g., microphones, accompaniment, instruments, effects processors), capable of processing multi-source signals simultaneously;

4 Headphone/Line Outputs: Provides 4 independent output channels, each usable as headphone monitoring or line signal output, supporting simultaneous monitoring/reception for 4 groups of users;

Independent Channel Control: Each input/output is equipped with an independent volume knob, allowing separate adjustment of input and output volume for each signal, flexibly adapting to multi-source mixing and multi-user monitoring needs.

3. Mono/Stereo Dual-Mode Switching

Equipped with a STEREO/MONO switch, supporting switching between stereo and mono signal modes:

• Stereo Mode: Fully retains the left-right channel separation of the audio source, suitable for professional scenarios such as music mixing and recording monitoring;
• Mono Mode: Combines left and right channel signals into mono output, suitable for scenarios such as multi-person simultaneous monitoring, teaching and training, and band rehearsals, avoiding channel deviation.

4. Output Signal Distribution Switches

Each output channel is equipped with an independent input signal distribution switch, allowing flexible selection of which input sources the output channel receives (e.g., OUTPUT 1 can choose to access IN1+IN2, OUTPUT 2 can choose to access IN3+IN4). This enables personalized monitoring configurations for different users, adapting to signal distribution needs in complex scenarios.

5. Pure Analog Circuit Design, Zero Latency and Interference-Free

Adopts pure analog signal processing and amplification circuits, with zero digital latency and no 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 the purity and stability of each signal without crosstalk or noise.

6. DC12V Stable Power Supply

Adopts DC12V power supply design, providing stable and sufficient power support to meet the power requirements of multi-channel simultaneous operation, avoiding the impact of voltage fluctuations on sound quality, and suitable for long-term stable use.

User-Friendly Design & Practical Functions

1. Integrated Compact Body Design

Combines mixing and headphone distribution functions, eliminating the need for additional multiple devices and reducing desktop space occupation;

Durable metal/ABS casing, weighing only 0.64kg, with stable and durable structure and strong anti-interference capability, suitable for frequent movement and multi-scenario use.

2. Clear and Intuitive Operation Layout

The front panel is clearly partitioned, with input control area, output control area, and signal distribution switches at a glance, making it easy for beginners to get started quickly;

Each input/output is equipped with an independent volume knob with clear scales and smooth adjustment, allowing precise control of signal volume;

Independent power switch and power indicator light for one-click control of device start/stop, with working status clearly visible;

The top interface layout is neat, with DC12V power port, 4 input interfaces, and 4 output interfaces arranged in separate sections for convenient wiring.

3. Multi-Scenario Compatible Interface Design

4 audio input interfaces support multiple interface types such as 3.5mm/TRS, allowing connection to microphone receivers, sound cards, computers, instruments, players, and other devices;

4 output interfaces can simultaneously connect headphones, speakers, mixers, recording devices, etc., adapting to various output needs such as monitoring, sound reinforcement, and recording.

Product Configuration

LQ04*1

power adapter*1

Weight: 0.64kg

specification 27*16.5*6.5cm

Applicable Scenarios

✅ Recording Studio / Workspace: Can simultaneously connect multiple microphones, instruments, and accompaniment, then distribute the mixed signal to the headphones of singers, musicians, and recording engineers to realize professional recording workflows;

✅ Live Streaming Teams / Multi-Camera Live Streaming: Can simultaneously connect host microphones, accompaniment, and effects processors, providing independent monitoring signals for hosts, directors, and technicians to achieve synchronous live audio processing;

✅ Band Rehearsals / Small Performances: Can connect multi-instrument signals and accompaniment, distributing independent monitoring headphones to band members and flexibly adjusting the monitoring volume of each instrument;

✅ Teaching & Training / Classroom Teaching: Can simultaneously connect teaching audio and student speech signals, providing monitoring signals for multiple groups of students. Mono mode avoids channel deviation;

✅ Multi-User Audio Sharing: Supports simultaneous monitoring of different audio source combinations by multiple people, suitable for scenarios such as group music listening, audio-visual sharing, and small parties.

Product Advantage Summary

Function Integration

Combined mixer + headphone distribution in one unit, with 4-in 4-out design. A single device meets multi-source audio processing and multi-user monitoring needs.

Audio Performance

20Hz-20kHz frequency response + >90dB SNR + 0.05% low distortion for pure, uncolored sound quality.

Flexible Control

Independent volume adjustment for each input/output, mono/stereo switching, and signal distribution switches supporting personalized monitoring configurations.

Connection Compatibility

Wide level compatibility + high input / low output impedance, adapting to various devices such as sound cards, microphones, instruments, and players.

Stability & Durability

DC12V power supply + rugged body for stable long-term operation and strong anti-interference capability.