Effective Noise Reduction: This 4-channel audio isolator effectively reduces audio noise and interference in your car audio system, ensuring clearer sound quality. Ground Loop Isolation: Designed to prevent ground loop issues, it eliminates the buzzing or humming sounds caused by ground loops in audio systems. Easy to Install: Simplify your car audio system setup with this easy-to-install device, which requires no additional tools and is perfect for audio system modification. Universal Compatibility: Suitable for most car audio systems, this audio isolatic can be seamlessly integrated with various and models. 1. Product type: Multiple channel configurations, supporting 4-channel input isolation and 4-channel output 2. The input/output isolation has an isolation insulation withstand voltage of 300Vp-p or higher. 3. Characteristics of multi-channel isolated noise suppressor The device insertion loss is less than 0.5dB. The return loss is 18dB. The input level range is from 0.5Vp-p to 3Vp-p. ground loop isolation and noise reduction processing. Frequency response:20Hz-20kHz, with an error within 0.2dB (reference 1kHz) Common mode rejection: 68dB@1kHz Stereo channel isolation:62dB Input impedance:600 ohm Input interface:4-channel cable interface (cable length of 14cm) Output impedance:600 ohm Output interface:4-channel female interface Rated loss:less than 0.5dB (reference 1kHz, 1Vrms) Insulation resistance:100M ohm at DC1000V Isolation voltage:AC 50Hz-60Hz, 0V-1500V Maximum input level:+6dBu Due to different batches, there may be differences in product appearance and printed text, which not affect use. Colour:Black Material:ABS Package Contents: 1 * Audio Isolator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.