4-channel audio isolator with 4 inputs and 4 outputs. Input and output isolation with insulation withstand voltage up to 1500V AC (50–60 Hz). Low noise floor — no 50Hz AC hum or high-frequency interference. Point-to-point unbalanced analog audio transmission. Inputs and outputs accessible via front and rear panels. High common-mode rejection ratio (CMRR): 68dB @ 1kHz. Stereo channel isolation: 62dB. Plug-and-play operation — no external power supply or drivers required. Supports isolated, filtered audio transmission up to 600 meters. Built-in transient suppression, surge protection, and ESD protection. Analog ground loop isolation and noise reduction. Insertion loss: < 0.5dB (at 1kHz, 1Vrms). Return loss: 18dB. Input level range: 0.5Vp-p to 3Vp-p (+6dBu maximum). Frequency response: 20Hz–20kHz (±0.2dB, ref. 1kHz). Input impedance: 600Ω. Output impedance: 600Ω. Input interface: 4 x line-level male connectors. Output interface: 4 x line-level female connectors. Rated loss: < 0.5dB (at 1kHz, 1Vrms). Insulation resistance: 100MΩ at DC 1000V. Isolation voltage: AC 50–60Hz, 0–1500V. Applications: - Safe audio signal transmission between systems with different ground potentials. - Reduction of electromagnetic interference in audio systems. - Mitigation of noise caused by impedance mismatch between connected devices. - Noise reduction in audio setups involving mixers, projectors, LED displays, and interpretation equipment. Color: Black Material: Aluminum alloy Package includes: 1 x Audio isolator Note: Actual product color may vary slightly due to lighting and screen settings. Dimensions are subject to a tolerance of ±1–3 cm.