Summary: They far exceeded my expectations, I upgraded from a set of Polk Monitor 70's that have been my main speakers for 10 years and have been great. But I have to say it was like trading in a 10 year old Malibu for a new Corvette Stingray, it was that big of change.
Pros: Won't disappoint
Look and sound beautiful
Cons: Heavy, have some help unpacking and setting up.
Summary: After 30 years with Advents, was is a financial position to upgrade my entire stereo; speakers are everything as you know and went with these, sight unseen, only speaking with pros and reading articles.
Pros: -quallity craftmanship
Summary: I purchased the Polk Audio LSIM 707's in May of 2014. In short, these Speakers are the most Accurate, Fullest Sounding and Precise speakers I've ever listened to or have owned, for under $10-$15K pair.
Pros: Highly Recommended if you have the right gear driving them. Beautiful, High-Quality construction like the finest furniture! There is content in my now 30+ Year CD collection that I've never heard until now, with the LSIM 707's / Yamaha A-S2x00's combination!
Cons: These speakers are real "Beasts"! Make sure you have a buddy around to help with the Setup and Placement.
Summary: I currently run a 7.2 Emotiva UMC-200 preamp and a Emotiva XPA-2 & XPA-5 and purchased the new Polk Audio LsiM707 tower speakers the Polk Audio LsiM703 bookshelf speakers 4 of the 703's and the Polk LsiM706c all in midnight mahogany and I am smitten kittens ( blown away ) at the quality of these...
Pros: I love these speakers, I could have bought Bowers & Wilkins 802 Nautilus but they were harsh on the ears I can listen to the Polk Audio LsiM707's and the rest of my LsiM series of speakers for hours without any fatigue on the ears. I listened to a lot of Expensive Speakers costing more than 5 tim...
Cons: No other speaker has a chance in and around the $10,000.-$15,000 range because once you hear the LsiM707 speakers with a good power amplifier you would realize that Polk hands down built one of the best all around audiophile speakers and the rest of the other brands is just wasted cash. I'm not s...
Summary: I bought the M707's with the intention of not having to purchase another set of lead speakers for myself again for many many years - if ever again. These speakers each composed of five powered speaker cones/woofers require a lot of power.
Pros: Pros include a huge appetite for whatever you throw at them. The ability to bi-amp the speakers. Super high-quality furniture finish and construction, and extremely thin magnetic grill and covering that looks fantastic and can easily be removed and replaced with no damage to the cover or speakers...
Cons: So far the only con I can come up with for the speakers is the fact that I probably could supply a better power source for them. Otherwise most likely I would've given five stars.
Summary: Have owned several higher end speakers over the years and these are just about the best, especially at this price point. Sparkling highs, realistic mid-range voice; solid, tight bass--can momentarily be a bit boomy lower-mid range on some material, but tweaking speaker location helps put an end to...
Pros: Great look--great sound
Cons: Not really a dislike--but be prepared--these are large, heavy speakers--not easy to move them about to tweak the sound, especially on a carpeted surface
Summary: I have been looking for quite some time to find suitable replacements for my Energy Reference 22 (circa 1985). I have had several various speakers since but didn't quite measure up. These Polk LSIM 707's exceed my expectations. Check out the review at ToneAudio.