The Klipsch RP-160m's are rear ported. I suggest you find a pair of RB-81ii's, which include the 1" Ti dome compression driver/horn and a front-ported 8" LF driver. It has an SPL of 97dB @ 1W & 1 meter, a Pmax of 150W RMS, is bi-wire/bi-amp capable, and it's freq response is 44Hz - 24 kHz @ +/-3dB. It's big, ~20" tall, and weighs ~28 lbs. Mine are keepers. I use them for music-only - an Onkyo C7030 driving an Emotiva mini-x A-100 (50 Wpc) which feeds the speakers via 10ft lengths of #14 Cu zip cord the room is 11' x 12' x 9' and they produce a C-weighted sound level at my listening position of 88 dB - pretty loud - while occasionally hitting peaks of 10V RMS (12.5W at 8 Ohms). These are the best bookshelf speakers that I have heard, much less owned. Sadly, they were dropped a year or so back, so they are hard to find. One Amazon vendor still has them at $349/ea. Warning - they have the typical Klipsch 'horn' sound - which I like - but some folks don't. I'll hopefully hit 68 this summer, and have a hearing deficit from 3-4 kHz and a roll-off above 10 kHz. My wife, who is a bit younger and has perfect hearing, said the speakers sound great, ie, not overly 'bright', despite my choice of music!
