Hi All! Currently I have a Denon 4311 receiver (140 watts rms) running 11.2 Audyssy surround both heights and wides, with 2 x 18” DIY subwoofers. Mains/surrounds are a mish mash of B&Ws; fronts DM602 S3s, side/rears are 685s/686s I'm converting a shed to a dual purpose lounge/living/kitchen area (i.e. home theater one end, kitchen the other) that will be well sound proofed and walls damped to provide good base trapping. Room size is about 8.5m x 5.5m x 2.9m. I have an acoustic screen 2.8m wide, seating about 3.3m from screen (which is an issue with room modes I know). I don't listen to music (sad too I know). I'd like to build some DIY replacement speakers (not subs) with the following goals: 1) worthwhile upgrade from existing speakers 2) proven design/kit 4) cheap as possible but worthwhile upgrade. Ie. bang-for-buck approach (for both price and build complexity) Suggestions as to baffle walls with mounted speakers and wall mounted surrounds also welcome. Cheers, Blob