Instruction: Answer the given question using the supporting document.

Input:
Question: How many watts per channel can it support?
Document: that those support.
Parallel RCA termination in an attractive box. Button in connects that channel to the bus. Button out disconnects. Not a whole lot of noise, or if there is I can't hear it. Which is same diff. Good way to select inputs and also have an output on/off. I'm pleased.
I use this unit to simplify the selection of various audio sources (Lo-Fi) to a single stereo amplifier. It works as advertised. Each pushbutton switch essentially connects the input/output jacks of that channel to a common buss. So it is up to the user to be sure only one input and one output are selected at a time.Pros:  Solid steel construction. Small footprint (fastens up under counter).Cons:  Only two 3.5mm stereo jacks, rest  of channel inputs are dual-RCA.
The solution to my issue. Be informed that the selectors operates as a common place: you push a button and you connect the button assigned device to the common place. So, to connect the tuner to the amplifier, you have to push both buttons (the tuner one and the amplifier one). In a common utilization the amplifier button should be always depressed. It can handle five sources and one amplifier or four sources and two amplifier and so on, the sum of attached devices is six. Every channel has a 1 KOhm resistor so the signal going to the amplifier has to cross 2 resistors in serie and its impedance is increased by 2 KOhm.
So, it's two separate functions, one with two inputs and one output, the other with one input and two outputs. Because of the common point across the entire unit, you can only use one batch of switches at a time. For example, there's no ripping LPs while playing the iPod. Not a big deal to me. I got great support via email from the gent at PhonoPreamps.com for a setup question, too. It's quite a deal for the money, and I'm totally happy with it.
I'll briefly describe what happened to me and how I'm using the TCC because I'm sure many of you can relate to this and are exploring different options and alternatives.I have a Denon shelf system that serves as my radio alarm clock and stereo receiver in the bedroom. I had connected my Pioneer 301 Disk CD Player to this and was in 'music heaven' with this setup for several years.Then I eventually bought a Cambridge Audio DacMagic Plus and connected the RCA output jacks to the Denon, and also connected the Pioneer 301 Disk CD Player to the DacMagic Plus using a Toslink cable.
This setup is still in place and works fine.When I learned about lossless FLAC files 2 years ago, I started ripping my 1500 CDs to FLAC using the free download software EXACT AUDIO COPY. I wnated to keep many of my CDs but also move to streaming the highest quality lossless digital files. I chose MediaMonkey to retain this digital audio library and play the FLAC files. Since there is no point or joy playing music through PC or laptop speakers, my next goal was to find a way to hear these through the Denon speakers.Well, to make a long story short, all of the additional gear that I gradually bought over the years now happily exists side by side and is so easy to use because the TCC TC-716 serves as the central hub for the main pieces.
the same impedance so there is not too much of a drop in audio level. I usually only have one input selected, but I can quickly see what else is on that is inportant.
small, sturdy metal box, quality switches, can't hear any distortion or noise. this is the second one i've bought, after using the first one for almost a year. i use it to vary inputs or outputs to a tabletop stereo, such as laptop, squeezebox, roku, etc. rather than plug and unplug. amazingly, the connectors on the box work as either inputs or outputs, depending on if you have a source input or output connected. it even works as a mixer. no problems whatsoever. wish i'd found it years ago.
easily expands your radio/speaker system. i use an Internet radio with wireless speakers, this allows to expand up to 5 sets of speakers, the price is right and easy to setup.
Answer: It's just a source selector.  Power handling has nothing to do with it.  Only speakers care about power.