Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: if only these 2 speakers were conected how do they sound
Document: I upgraded my system with this new center speaker including 2 new Klipsch surround speakers  and woofer to match. The effect on the clarity of the music is incredible. The detail is excellent and there is no distortion as the volume is increased. These Klipsch speakers are the best I have ever owned. I have a vast collection of classical music that tests the quality of any speaker system. They are well worth the price if you appreciate the best.
What can I say, I have been a fan of Klipsch since the early 80's, so why would I switch now. They arrived in perfect condition as everything from Klipsch/Amazon seems to be well packed. (I can't say this is true for everything. )I have a 7.1 system which is all Klipsch, so these speaker fit right in. I bought these to replace 2 very old bookshelf speakers which really didn't match the other speakers in the system.
I hadn't researched the product well enough before buying it. These are for surround sound systems only - and are used for the front two speakers in a five speaker set up. I was simply looking for some decent bookshelf speakers that had decent bass. They are not meant for playing music - no bass at all. I replaced them with some other Klipsch speakers which are terrific.
In a word "Excellent" The sound is awesome. What you don't know is how easy it is to hang these speakers on the wall. Part of my project was getting wires dropped inside the wall instead of running them under carpet or around the baseboard. The installer said these Klipsch Synergy S-20 were the easiest installation he had ever done. The sound is great. I was really surprised how well the speakers delivered the bass. Most surrounds can't do that well. These can.
i have Klipsch Towers KLF30's x4 and withy my new Onkyo 7.1 receiver I needed new rear channel speakers. They are very crisp but don't measure up to the rest of my system. You get what you pay for and I think these speakers are great for the money but I just didn't spend the extra money for their high end speakers. I will say though that Klipsch stands behind their stuff.
Exceptional sound quality with multi-direcctional musical radiance. Outstanding compliment to my existing home theater system components. I would recommend them regardless of your listening preference..
Awesome, love it. the voices on the TV sound crystal clear. my old surround system I could barely hear the voices. This new Klipsch s20 and the c20 combination make my surround perfect. very cool...
Nice sound, fit and finish. Easy to hang using supplied hardware. I paired them with Klipsch rf-62-ii towers, rc-62 center, sw-450 sub and 100 watt/channel Yamaha receiver.
Thank you Klipsch!!! !
IN THIS SPEAKER YOUR HEAR AND FEEL THE MUSIC AS SHOULD BE.GREAT FOR MY HOME THEATER THAT IS ABOUT THE $7,000
Answer: These speakers are pretty incredible. They are surround speakers so logically they're not designed to be your mains, but there's really no reason they can't be. They have the same horn tweeter and drivers as some of the center channel speakers, driven by the right stereo receiver you should be just fine. Keep in mind, these things are pretty efficient with power but they'll only be as good as your receiver. Crappy receiver = crappy sound no matter what speakers you have.