Need Two Way Speaker Switch That Won't Negatively Impact Sound


I am in need of a two way switch that will allow me to change between two pairs of speakers powered by the same amplifier, in the same room. There are times I will be listening to one pair, and times I will be listening to the other pair. 
Years ago, I was told by respected audio experts that any switch like that would cause deterioration of the sound quality. Is there anything out there today that is reasonably priced, and will not negatively impact the sound for what I need? 
nightfall
No one is saying it won't work, but its presence will degrade the sound, whether it cost $500 or $5. You were told by authorities in the past, and I'm confirming it. If you don't wan to believe it, go get your cheap switch. Build a few hundred systems like I have, and you will have an opinion about it. :)

@douglas_schroeder 

Okay, so you say you've never been able to use a switch on an amplifier output without degrading the sound and I say I have. That's not very helpful for the OP... maybe you have remarkable hearing and mine is worse than I think, or maybe you've never tried too hard to find a solution that would work. Whatever... I have offered a solution to the OP that they can try if they want and make their own decision.

I don't think enjoying audio is about hard and fast rules that you must never break, it's about finding what works for each individual.

You can do it with a sealed high current relay which you can switch from your seat. I use one to AB loudspeakers but it is pretty old and I doubt it is still being made. Go to Digikey.com and search the relay section. You will need a small power supply to drive it, some wire and a push button STSP switch.