Jury rigging a WiFi controlled speaker selector


My home stereo set up is an NAD c 375bee (150w) and I run three pairs of speakers (hardwired throughout the condo).

My ADCOM GFS-3 speaker selector is cutting out on the left channel intermittently (unusual no?) Anyway, as I seek to replace it, I'm wondering how hard it would be to create a WiFi controlled (or even IR controlled) speaker selector using a product like this (thanks to user @imhififan for recommending it on a different thread.)
https://www.amazon.com/MHCOZY-Channel-Control-Appliance-Compatible/dp/B07MXCWRGX?ref_=ast_bbp_dp&th=1&psc=1

Actually, that switch is meant for power appliances so I need to find the equivalent specs for speakers don't I? But assuming I can find that, would it be ill advised to use just ONE switch for each PAIR of speakers by running only the + or - from each pair through it? I just need to off/on the circuit right? 

If I situate the WiFi switch behind the ADCOM GFS-3 and before each speaker pair then it seems like I could get double duty out of a single switch, or am I missing something? Besides slight cost saving it's the clutter of six switches and the fact that I don't want to have to switchon/off each left and right speaker separately that appeals.

For context: Only one company makes an integrated IR remote speaker selector, the OSD ATM-7 which only handles 100wps and costs a fortune.

Thanks for your insights and suggestions!


pilastr
Actually, that switch is meant for power appliances so I need to find the equivalent specs for speakers don’t I?
You need to find something using relay for switching, the relay contacts act as a switch, it doesn’t matter using it for switching speakers or other electrical circuits as long as within its power rating.
the fact that I don’t want to have to switch on/off each left and right speaker separately that appeals.
To make it properly, every speaker terminal need a switch (one for + terminal, and one for - terminal). you can use a 4 channel WiFi switch to control a 16 channel relay module, each channel of the WiFi switch control a gang of 4 relay from the 16 channel module.

https://www.amazon.com/Channel-Momentary-Inching-Self-Locking-Compatible/dp/B07Z8WY8V7/ref=pd_cp_60_...

https://www.ebay.com/itm/USA-5V-12V-1-2-4-8-16-Channel-Relay-Module-Arduino-Raspberry-PI-ARM-AVR-DSP...

Now you have a WiFi speaker selector to control up to four pair of speakers!


Oh! Thank you for this. Is it is as simple as connecting wires? Am I crazy to think I could assemble this myself using only those two parts and some speaker wire? I have no previous Arduino experience (though I have assembled and configured PCs and WiFi networks.)

Is it is as simple as connecting wires? Am I crazy to think I could assemble this myself using only those two parts and some speaker wire? I have no previous Arduino experience
No Arduino programming required, soldering experience would be nice and you do need a enclosure, 5v power supply, 20 pcs of speaker binding post and some connecting wires to complete the project:

https://www.amazon.com/dp/B075WZRW75/ref=sspa_dk_detail_1?spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyOTI0U1ZXR...

https://www.amazon.com/BOLWEO-100-240V-Wireless-Connector-5-5mmx2-1mm/dp/B0719GY29M/ref=sr_1_4?keywo...

https://www.ebay.com/itm/10pcs-Gold-Plated-Audio-Speaker-Binding-Post-Amplifier-Terminal-For-4mm-Plu...