Stereo Amplifier / Speaker Selector Switch Splitter Box, 2 in 4 out Switcher Compare 2 Amps Speaker amplifier speaker selectorFeatures:brand new and 2-IN-4-out passive switch selector, convenient to compare the sound quality of 2PCS power amplifiers 4 pair of different speakers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets.And a 6.35mm headphone is specially designed to connect the amplifiers without headphone output, and with independent control, easy to turn your amplifier to a headphone amplifier.Each channel of input and output with switch, easy to select between two groups of inputs, and 4 groups of output can be turned on / off independently, very conveneient to use. And passthrough power of each channel can reach 300W, can satisfy the requirements of most home speakers.Adopting purely mechanical passive circuit, no on the sound quality, no need to worry about rendering electromagnetic Easy to use and install, no power is required and no additional software is needed.Compact design, strong metal case, looks simple but powerful, very suitable for those audiophiles who have multi pairs of amplifiers / speakers want to add headphone output function to his amplifiers.Specifications:input: 2 sets of banana speaker output: 4 sets of banana speaker / 6.35mm headphone Passthrough power of each channel: 300WFrequency response: 10Hz-50KHzNet weight: 0.86kgPackage weight: 0.98kgSize: approx. 240x113x55mm/9.45x4.45x2.17inPackage Includes:1Set x Amplifier Speaker Selector SwitchNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual