Got the LSim703 demo's on house. been going back an forth against my modded LSi9's that Trey did. (for details on the mods http://www.polkaudio.com/forums/show...=ohskigod+lsi9 Yes, the Mods were extensive and ridiculous.
the gear used is in my sig under 2 channel.
Initial details so far:
the LSim703's have better upper range detail than my LSi9's, though come off more neutral where the LSi9's are warmer to listen too. Makes me enjoy them both for different reasons.
If you really dig crystal clear detail, your going to want to go with the 703's. they have a slight edge in this department. It was the first and easiest thing to point out. Easier to pick out individual instruments, Also vocalists come off as a little more front and center. While they seem more neutral and brighter than the Lsi9's, they passed my female vocal tests with flying colors. not a bit of listeners fatigue after about a half hour listening.
When I switched bak to the Modded 9's, the difference was mild, but easily noticeable. Vocals a little more laid back in the mix...the highs were less detailed though warmer. Here's where it gets weird....The first song I longed a little bit to hook the 703's back up, but after the second song I didn't miss them at all..... suddenly I remembered why I sold my AR9's in favor of the modded 9's. Even as I type I am listening to the 9's and have no overwhelming desire to hook back up the 703's. I just feel very comfortable listening to these speakers
Again to reiterate, I really like the 703's on my gear, and lord knows I spent most of my time at polkfest listening to the 703's than any other speaker there....including the flagship 707's. I like how detailed they are without going over into the bright and annoying camp. The 703's definitely dig a little deeper in the bass department than my 9's...not by much, but again enough to notice.
Anyone around here want to listen to the differences? I'd really like a second opinion. I find it confusing that the LSim703 seems like a better speaker for the reasons I thought it would be, yet I wouldn't trade them for even up for my 9's....even if Doro or anyone at Polk told me to keep the 703s if I shipped my 9's and crossovers to them....I probably wouldn't do it. And for the moment I can't figure out why that is. Meh, let me give it more time.
I can say that if My 9's got torched in a fire or stolen, I wouldn't go through the modding trouble, I would get the 703's and be happy as a clam. Even at full MSRP these things sound so nice. They get along with the room I have them in famously as well.
They are remarkably full range for a bookshelf........I might catch hell from Polk for saying this, but seriously, unless you're putting speakers in a gargantuan room, you have no need for the towers. Get the 703's and call it a day I can say from Polkfest that in a mi to small size room, the 703's are going to sound better (in a big room obviously that will be different, but we're talking a really big room here)
Also, they seem to be far less dependent on big power than the LSi9's were, the power meters on my Carver 4.0 don't move as much at same volumes with the 703's as opposed to the 9's. I Imagine if your running lighter tube power, you will still have no problem with these. I would love to test them on my Anthem Amp 1 tube amp but i have still not ben able to find a replacement fuse for them (apparently Radio Shack never carries it, the fuse value escapes me at the moment)