I've possessed a few sets of Infinity Kappa speakers throughout the years. Their segment speakers were just stunning at the cost. So I chose to buy these for another Ford Explorer we as of late acquired. I wasn't hoping to do any custom manufacturing since the vehicle was so new, and chose to run with a good match of co-axials rather than parts this time. The 682.11cf touched base in an appealing box, and the speaker configuration is dazzling. The main thing I saw is the containers are presently plastic as opposed to metal. This has chopped down the weight a few. The tweeter was very vast, nearly as large as the tweeter on my Infinity Kappa parts. There was a catch on the tweeter to highlight the treble by +3db (you won't require it). The introduce was somewhat more muddled by the way that these speakers have screw-down terminals as opposed to hauls as most speakers have. I'm not unfavorable to utilizing the screw-down framework as most amps utilize this framework, yet it forced me to cut the connectors off my speaker links. Should I choose to supplant these not far off it will mean all the more fastening of wires back together. They fit consummately and there were no freedom issues whatsoever. By and large a quite standard establishment except for the wire associations. When everything was in and assembled back I started up the vehicle and turned on the head unit. I'm controlling these speakers through a PPI P900.4 running off my snow capped head unit. I'm likewise running a limitlessness basslink fueled sub-woofer. Everything worked first go around. To state I was disillusioned with the sound would be putting it mildly. The whole stable stage was obscure and sloppy. I quickly set to disengaging the issue. I killed the sub, and played every entryway speaker exclusively. Every one of the 4 of the 682.11cf speakers had a similar sound quality. The highs were splendid, the bass was somewhat light yet punchy, the issue was with the mid-extend, it was exceptionally suppressed. I was trusting that it was only 1 speaker, however every one of the 4 let me know there is either an issue some place in the source chain or the speaker simply suck. First thing to check was the head unit. I swapped the elevated out for a more established Kenwood unit I had. While there was a slight contrast in sound (because of settings), regardless it had the obfuscated mid-extend. Next up was the amp. I supplant the PPI with a more seasoned JBL amp I had laying around. Killed every one of the hybrids, and set the increases to a direct level, and still a similar sloppy mid-go. Next I took a stab at supplanting the 2 front speakers with a more seasoned combine of JBL 3-ways I had close by, and the distinction was exceptional. The framework sounded totally inconceivable. In the event that the JBL's weren't so short on control taking care of, I would keep them and consider it daily. So now I have these Kappa's and the sound isn't greatly improved than the stock speakers. I know speakers require a break in period, however I've been running these for over seven days now with little change. I truly question that I got 4 terrible speakers, yet that isn't out of the domain of plausibility I assume. Whatever the issue, I'll be searching for something to supplant them, and ideally I can recover a portion of the cost by offering them on eBay. I know these speakers are exceptionally appraised by different proprietors, however I need to address if these different analysts have ever extremely heard a conventional arrangement of speakers previously, or on the off chance that I simply got 4 lemons. Possibly Infinity, in the same way as other of the other auto sound makers, have taken to delivering low quality items for the majority who will make due with an average item. Read about these speakers on StereoStefan