Originally Posted by Scott Simonian
That's kind of what I'm thinking of doing for my quad RLp18's. They are all dual 4ohm so two pair in dual opposed would be perfect with a single FP14k. I'd really like to do the same with these. I've also looked at using four of these in a single cab for the end 4ohm load but that would require a huge amp such as the 14k and used bridged which Bosso says is not recommended. Though I am to believe that it would not be a good idea with high levels sines and all that. In normal home use and especially used in a system with other high output subwoofer, I doubt it would be an issue to run the 14k bridged but umm... I really don't know for sure. Just speculating.
If I could get them single 8 or dual 4, ah, that would be perfect for me. I'd rather get the two 14k's and run them in a way that they are stable. 2200w per driver is quite a healthy amount. My model sims of these show that they can mechanically take 5kw in a small, sealed enclosure of ~2cuft. That's a bit much though. I think it's pretty cool that I could make a balls to the wall 20kw subwoofer system and take up very little floorspace and easily produce reference levels down to the single digits. Incredible.
I was referencing a Brit's test results (the Chas of the Euro-zone) wherein the clone crapped out during the 2 ohm stereo test. Unfortunately, he started the testing with this so no further performance data was available.
Now, that was almost 2 years ago when I was looking into the clones to buy a few and test them for my app, so I don't know if the latest iterations are improved in that respect or not. I've had Chinese engineers tell me that most clones are not recommended to be bridged 4 ohm with 115V-60 Hz operation.
I can tell you that after I had a clone fail spectacularly (not a Lab clone, but a similar platform) and read of the Lab clone test fail I connected 2 of them, each to a 4x15" system, one 4 ohm stereo and the other 4 ohm bridged. I haven't had any problems to report, but then again I always operate my system within its limits. IOW, I don't push hardware to find its destruction point, just its ideal performance limit in my app.
I agree, the FP14000 should be good in 4 ohm bridged mode if the VPL and gain structure are properly set up and the warning lights are observed with common sense.
Just an opinion, YMMV.