My room is similar at 10x10x8 and is square mostly. I had B&W N804 floorstanders in there (a holdover from my days living in a condo), and it was a real challenge to get a cohesive sound without boomy bass. Yesterday, I traded-in the B&Ws for a pair of Joseph Audio Pulsars. While I have only a few hours on the Pulsars, I can tell you that they sound terrific and work very well in my small room. From my experience, small rooms benefit greatly from a two-way monitor. I recommend the Pulsars without hesitation.
Good Used Speakers ($8K-10K) For A Little Listening Room
I know that this is a tough one, because speakers are so subjective. My dedicated 2 channel listening room is only 10ft x 10ft. I listen to mostly jazz and rock. I currently use a Plinius SA100 Mk III (recapped and upgraded) driving Joseph Audio RM25XL's. I'm thinking of upgrading and was wondering what speakers would be a good upgrade for a small listening room. I like the Joseph Audio sound, but want more. I was thinking of Pulsars or maybe Perspectives. First, is my room too small for floor standing speakers? Second, what other speakers in the $8-10K range used would be a good fit in a small room?