So, I got these a while ago on craigslist for $60 (!!!!!). Looking at them, and using them, and looking at modern JBL monitors, it makes me wonder what went wrong. Seems like the closes speakers to compare them to in features and price range are the 705P and the 708P, though they are both more expensive, at $1000 for 705P and $2000 for 708P (and $700 MSRP for LSR4326P). Comparing specs, the 6.25" LSR4326P at 28lbs are much heavier than the 5" 12.5 lb 705P, and still a bit heavier than the 8" 25lb 708P. Weight may not directly indicate anything, but that's that, for whatever its worth. A lot of the weight may come from the large toroidal transformer inside the LSR4326P, needed for the class A/B amplification. Im assuming the 705P and 708P would not have this, with their class D amplification. The LSR4326P and the 705/708P have wood cabinets with reinforced mounting points, but the LSR4326P also has magnetic shielding, for use near other electronics. Now, onto ease of use. Both have similar IO, with 2 digital and 1 analog input, but the difference comes with the controls. All of the 4326P's controls are front mounted, for ease of use. What you are doing with controls is indicated by lights on the front. The controls can change volume, EQ, preset, solo mode, on/off, input, and start calibration. The 705P and 708P have front volume control, but all other controls are on the back, with a little screen on the back as well. Screen seems like a good idea, but would have been better on the front... Now, onto my actual experience. I have never used the 705p or 708p, so I can not comment on them, only the LSR4326P. I like them. Very easy to use, I like the front controls. Sound good, a bit more treble then I like sometimes, but with the built in EQ I can turn it down. I can also control with remote. Measurements: Measured about 3 ft away with minidsp umik-1, in my imperfect room, with rear port somewhat close to wall. Very flat, I blame most bumps on the room. This is the setup, I measured the right speaker. Time to open them up, see whats inside Decently thick wood, soft stuff on sides. Plastic front bezel does have stuff added to it, somewhat like Dynamat. That is good to see, not just a light plastic front. Big transformer on bottom there, on top of the metal reinforced plate for mounting the speaker. Looks like some real engineering when into this. Amplifier part Unique double flared port, flared at both ends for whatever reason. Whole back plate is metal, nice big heatsink for the class A/B heat (not that much heat, but more than class D). Overall these look and sound like a well designed product, without cutting corners like many other product do. I hope JBL can create something like this again.