Hey guys thankyou so much for your replies, in the end I got a good deal on 2 car audio subs (hold your abuse 1 minute, they're good sound quality subs and have a 27mm xmax. Have been used many times in custom home theatres). From a friend who's upgrading to an absooutely insane 30000w system (IN HIS FREAKING CAR)...anyway there by a company called fi car audio and the models I got were the 18inch q, for £50 each. They are the sound quality reference line of the company, and I borrowed a spl meter and measured 120db at 20 hz (corner loaded to be fair) from a sealed enclosure. I didn't think it was possible but I now have as much (and more) bass than I could ever want. Powered by a continuous1200w/ch amp i bought on ebay for £120; wood cost £30 as I already had a bit lying around. So that left me with £800.
For the tops I went with markyd's suggestion (THANKS! THEY'RE AMAZING) of second hand active monitors (Dynaudio BM15A) from a family friend for £600 who recently upgraded his studio to some silly money speakers in the order of £40000 for a 5.1 set. Sold the arcam for £230 (made £60 on the resale). As the subs are directly below the mains I crossed over at 120hz to prevent overexcursion and cannot localise the subs.
I am now completely happy, I think in the end I was never going to be truly happy with either hifi or traditional pro audio systems at this price. Highs are high, mids are clear and I now know what a subwoofer really is...if only all clubs were like this...I PROMISE I WILL NEVER ASK ANY MORE QUESTIONS ABOUT SPEAKERS FOR HOUSE PARTIES (and sorry for being so stubborn, I should have stated my aims more clearly from the beginning and I appreciate your patience).
Put the remaining £430 towards a charity trip driving to Mongolia from London in an ambulance in the "Mongol rally"...know it’s a bit cheeky but it would be massively appreciated it if anyone would donate a bit to charity through our just giving page
http://www.justgiving.com/MongolRally123 or
http://www.justgiving.com/MongolRally1234 (understand its unlikely, but hey, I’ve got nothing to lose, you can always say no...even a couple of quid would be fantastic) xx
Thanks once again for everything I couldn't have done it without you guys...We are the ONLY house party in Leeds which drops to 20hz with authority...not that the drugged up masses even care...