Diagonal setup of system...

yes, you still need to tend to 1st and 2nd reflection points (bass panels ala jon risch worked fine), tube traps in the corners to absorb standing waves, and i've also found that diffusion works behind the listener---i made a home-made RPG diffusor that made a nice difference when mounted behind my seat.

also, for small rooms, make sure your seat is far enough away from any walls / corners so that coloration is not present (you can hear it. just slowly walk forward from the wall while listening and you'll hear when the coloration stops. that ppoint is the closest your seat can go to the wall. ---incidentally, this technique is part of the WASP setup that wilson uses to great effect, its just that they do the listening test to mark the closest the speaker can go to the wall).

rhyno

in the decware setup they state that you won't need room treatments. in a larger room that may be true, but in a smaller room (mine's 11*12*8), treatements are still mandatory and a worthwhile addition.

rhyno

psychicanimal, you'll likely find (as i did) that the foam (aka absorption) @ listening position ear level will take life out of the performance. refract it with an RPG and you'll likely do better (or build your own, as they cost @ $40 in parts).

best
rhyno

i haven't tried the two products you mentioned so i cannot say whether they'd be worthwhile or not. but the prices are attractive...

quick cheap RPG diffusor recipe:
hot glue gun
2' by 4' by 1/8-1/4" perfboard (at home depot / lowes)
2* 2'by4'by2" styrofoam (available at any arts supply store--buy the biggest sheet you can buy)
straight edge razors
spray can of rubber undercoating for cars (available at autozone).

1) with the razor, cut the styrofoam into pieces 2" by 2" by various heights - 1", 2", 4".
2) glue pieces to perfboard in random pattern but with little uncovered space
3) spray with rubber undercoating.

--there, you just made an RPG diffusor for $40 that would've retailed for $600.

rhyno

no pics, sorry.

DIY room treatments are w/o question the biggest bang for the $ in audio. as Nike says, just do it.

rhyno