Selector Box Passive Audio Switcher for Home Stereo 2-Zone Amplifier/Speaker

2-Way Amplifier/Speaker Selector: Features both operating modes (2-IN-1-OUT / 1-IN-2-OUT), with an A/B channel toggle switch. Convenient for repeatedly comparing the sound quality of two different pairs of speakers or two power amplifiers, preventing wear on socket contacts. Strong compatibility for audio devices: Supports comparisons between different types of amplifiers, including BTL, Class A, Class B, Class D, and tube amplifiers. Pure mechanical passive circuit: No power supply required, no loss of input and output signals during transmission, no audio rendering or electromagnetic interference, providing HiFi lossless audio. Simple design with pure functionality: All channels are designed to be completely isolated from each other without interference. Built-in protective loads on A/B channels; appropriate size with a simple appearance, fashionable and durable, and fits well with audio equipment. advice: 1. Only one amplifier input group or one speaker output group is supported. Parallel operation of two groups simultaneously is not supported. 2. When the toggle switch is in the OFF position, the connection between the A&B channels and the I/O channel is disconnected, which is equivalent to muting, and no sound is output. parameters Audio interface: Banana speaker jacks Number of channels: A/B 2 groups, I/O 1 group. Mute: Support Working method: 1-IN-2-OUT / 2-IN-1-OUT Power (maximum) support: 200W per channel. Compatible amplifier types: All types (BTL, Class A, Class B, Class D, etc.) Dimensions (width*depth*height): 242*108*33mm / 9.53*4.25*1.30 inches. Net weight: 720g / 1.59 lbs. Package weight: 1000g / 2.20 lbs. Packing list SP102 switcher x 1. User manual x 1.