This is a professional-grade 3-in-1 audio mixer designed for broadcast, live sound, recording studios, and AV system integration. The device supports merging three independent input signals (balanced or unbalanced line level) into a single output, ensuring lossless blending and low-noise transmission. Featuring a built-in isolation transformer, it effectively eliminates ground loop interference and supports long-distance cabling (>100 meters). Offering superior balance between flexibility and universal connectivity, this device is ideal for multi-source audio mixing scenarios such as conference systems or multi-device monitoring setups.
| Category | Parameter Item | Parameter Description |
| Audio Performance | Input Channels | 3 x XLR Female connectors (Balanced/Unbalanced) |
| Output Channels | 1 x XLR Male connector (Balanced/Unbalanced) | |
| Frequency Response | 10 Hz～20 kHz (±0.5 dB) | |
| Total Harmonic Distortion + Noise (THD+N) | < 0.03% (1 kHz, 0 dBu) | |
| Signal to Noise Ratio (SNR) | > 100 dB (A-weighted) | |
| Dynamic Range | > 110 dB | |
| Maximum Input Level | +26 dBu (Balanced); +20 dBu (Unbalanced) | |
| Maximum Output Level | +26 dBu (Balanced) | |
| Crosstalk | 1:1 professional-grade transformer | |
| Isolation and Noise Suppression | Isolation Type | > 1 kV (input/output) |
| Isolation Voltage | > 50 dB (50/60 Hz) | |
| Ground Loop Noise Rejection | Built-in filter circuit (>40 dB attenuation) | |
| EMI/RFI Shielding | ≥100 m (balanced output, no attenuation) | |
| Maximum Transmission Distance | 3 x XLR female connectors (balanced); optional 3.5mm adapter and 3 x 1/4″ TRS (balanced/unbalanced); | |
| Interfaces and Connections | Input Connector Standard: | 1 x XLR male connector (balanced); 1 x 1/4“ TS (unbalanced); optional RCA 1 x 1/4” TS (unbalanced) |
| Output Connector Standard: | Input: 600Ω (balanced) / 600Ω (unbalanced); Output: 600 Ω (balanced) | |
| Digital Interface | None (pure analog design) | |
| Impedance (Input/Output) | 70 mm x 36 mm x 100 mm | |
| Physical and Environmental | Dimensions (L x W x H) | 0.45 kg |
| Weight | 3 x XLR female connectors (balanced/unbalanced) | |
| Enclosure Material | Metal housing, blue painted | |
| Operating Temperature | 0°C～50°C | |
| Storage Temperature | -20°C～70°C | |
| Humidity | 5%～95% (non-condensing) | |
| Power and Safety | Power Input | No adapter required, No power supply required |
| Power Consumption | < 2 W (typical, all inputs active) |
400-900-2726
9th Floor, 1B, Shangzhi Technology Park, Guangming District, Shenzhen City, Guangdong Province, China
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