2-way amplifier/speaker selector: both working mode (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel toggle switch, convenient to compare the sound quality of 2 pair of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. Strong compatibility for audio device: support doing comparison between different types of amplifiers such as BTL, class A, class B, class D, tube amp etc.. Each channel can pass up to 200W power, also suitable for the comparison between most passive speakers. Purely mechanical passive circuit: no power supply is required, no loss of input and output signals during transmission, and no audio rendering or electromagnetic interference, providing HiFi lossless audio without distortion. 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Sign Up Now ! Douk Audio SP102 2 Zone Amplifier / Speaker Switcher Box Stereo Audio Selector Item description Features 2-way amplifier/speaker selector: both working mode (2-IN-1-OUT / 1-IN-2-OUT), with A/B channel toggle switch, convenient to compare the sound quality of 2 pair of different speakers or 2PCS power amplifiers without plugging in and out cables repeatedly to avoid wearing the contact point of the sockets. Strong compatibility for audio device: support doing comparison between different types of amplifiers such as BTL, class A, class B, class D, tube amp etc.. Each channel can pass up to 200W power, also suitable for the comparison between most passive speakers. Purely mechanical passive circuit: no power supply is required, no loss of input and output signals during transmission, and no audio rendering or electromagnetic interference, providing HiFi lossless audio without distortion. Simple design but pure function: all channels adopt fully isolation design without mutual interference. A/B channel with built-in protective load; proper size with simple appearance, fashionable and durable, match well with your audio equippments. Warm Tips: 1. Only 1 group of amplifier input or 1 group of speaker output at a time, not support 2 groups of them working in parallel at the same time;2. When the toggle switch in OFF position, the connection between A&B channels and I/O channel will be disconnected, equivalent to mute, no sound will output. Parameters Audio Interface: banana speaker jacks Number of channels: 2 groups of A/B, 1 group of I/O Mute: support Working methods: 1-IN-2-OUT / 2-IN-1-OUT Power(max) support: 200W each channel Types of amplifier supported: all types (BTL, class A, class B, class D etc.) Dimensions(W*D*H): 242*108*33mm / 9.53*4.25*1.30in Net weight: 720g / 1.59lb Package weight: 1000g / 2.20lb Packing List 1*SP102 Switcher 1*User Manual Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver. Return Policy Free Return Within 30 Days We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). 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