Conclusion: I love this sub. I'm not kidding you, only meeting about half the RMS at 1 ohm, people have honestly said it sounds like something is trying to break out of my trunk. Needs a big box, the person I bought this from built his box, and it's pretty big. Big box, big sub, big sound. Durability is 3 because I haven't had it for a while. I can't speak about it knowledgeably.
Conclusion: I just got two of these monsters a couple days ago, and hooked them up with my HiFonics Brutus 1200 RMS amp. So far I love these subs, great speakers at a decent price. I highly recomend these subs if you want good sound, and to be heard coming for blocks!!!!
Conclusion: These subs use a great basket and motor, and even the cone composite cone is really nice, but why they skimped on the spiders is beyond me. After two years on 1500W daily, both spiders on both of my subs gave up and ripped all the way around right at the former. They are notorious for this, especially in the north where cold weather speeds up the deterioration. I had mine rebuilt by faultline customs with mirror progressive spiders and now they are truly amazing subs.
Conclusion: Ive recently bought a set of HK12x2 and found that the air space is wrong by the manufacturers specs we built box 3 cubic feet per chamber as per specs. the subs sounded very good on low notes high notes build s no pressure so we built a 2.2 cubic feet box and powered them and low notes intense and high end moves my windshield 3/8 of an inch impressive.
Conclusion: For the price, these speakers cant be beat. They put out alot of sound but do require a large box if you go ported and some heavy duty construction. They wont fit in any off-the-shelf boxes, but then you wouldnt want them to =) I'd put these up against fosgate stage 3s any day.
Conclusion: This sub is awesome. my friend just bought this and a MA audio 2000 watt mono. He used to have 2 JL' W3V2's and his trunk rattled a ton even with dynamat. Now wiht this sub i dont think hes going to have a trunk with all the bass coming out of it. i can hear coming towards my house from the end of the street and thats a good half mile. AWESOME SUB FOR THE MONEY!! GREAT BUY!
Conclusion: This sub hits very hard! Its reliable and ive had no problems with it after owning it for 5 months. I hit 144.3 dB's pushing approx. 1200 watts rms in a ported box in a car. Well worth the money.