MA Audio HK12X2

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. it is also our findings the 3000 watt rating is a safe rating we are putting 4000 watts a sub and they hit like a mac truck and do not heat up and woofers do not sound fatigued or distorted. very loud 156.3 to be exact

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.

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!!!!

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. I don't know what MA was thinking when they used the spiders they did, they should've used the 10" spiders that basket was meant for. Or at least less brittle spiders. Buy cheap and have rebuilt, and you can own a really serious woofer.

These are the best subwoofers I have ever heard. I love the deep bass MA Audio specializes in. MUCH LOVE!!!