I recommend the B&W M-1's (mini-theaters they call them). They're compact in size, can be wall mounted, and employ a metal dome tweeter with the B&W Nautilus tapered tube technology and neodymium magnets to minimize standing waves. They are made of a very strong curved aluminum cabinet with excellent build quality. They are substantial. Bottom line, they produce excellent surround sound highs and detail. Amazing little units and sell for about $200.00 each. They have a sensitivity of 85dB but your Marantz A-V receiver can be set to allow for that so they're balanced with the other speakers in your system. I too have a Marantz A-V receiver. My room is 13' x 23' x 8' high. I even use a 3rd one for my center channel speaker since I don't have the room for a full size center channel unit. Enjoy !!
rear surround speaker
I am looking for opinion about rear surround speakers. I want decent soound but don't want to invest a huge sum and also don't have the room. it will have to be ceiling or wall mount. the front speakers are avantgarde uno using tom evans amp and placette passive preamp,center channel is martin logan cinema.AV receiver is marantz 7100 with 100 watts per channel. Room is approx 15 wide, 12 deep and 9 high. welcome any ideas. thanks