rear ported for rear surrounds

[Willow]

Will this cause a problem if the rear speakers are rear ported ? can they be wall mounted or do they have to be on stands ? If they do need to be on stands shoot those will be tall ones for sure. ( talking about bookshelfs ) any other suggestions on how to get them up there (the ideal rear listening position). My rears are on unstable stands right now and as you read they are rear ported. what to do ? I dont want to screw in shelves in the walls (rental property) the stands we are currently using are telescopic and can go as high as 4ft with the tweeter at about 4.5 ft ( but not very stable they are leaning against the wall fo extra support)


Thanks

[markw]

Rear ported speakers cannot be mounted directly against the wall. No harm will befall them, but they need to be at least 6" (or more, depending on speaker, check your manual) or else bass will be seriously degraded. Likewise, the rest of the range might sound a little funky as well due to the imbalance.

Now, if you can somehow mount them on arms that will keep then off the wall...

INHSHO, I find it ludicrous (sp?) to call rear ported speakers "bookshelf" speakers simply that term implies mounting on a shelf, most likely against a wall.

Then again, I can remember when a "portable" color television weiged over 50+ pounds andthe only way itdiffered from a table model was the flimsy "carrying handle" on the top. Woe to those who ever tried to actually use that handle. (Can we say "hernia", kiddies?)

[Willow]

I thought so. After checking out the DD website im going to try putting them on thier backs right behind the seating firing upwards as depicted in 12B
http://www.dolby.com/ht/Guide.HomeTh...0110.html#s3.2 seems to be the alternative for right now. Will placing a speaker near not over top of a heat source (baseboard heater) cause a problem or mess up the speaker ??

[markw]

Good thinking to be concerned about this.

I had to refoam/recone a 14" JBL woofer after it was close to a heat source for less than two years. Of course, the heat was not on all the time (This is new joisey, not the north pole) but it did kerfutz up that nice rubber surround enough to make it brittle and fall apart.

Then again, this was a forced air system but, just in case, I'd try to keep them as far away from heat as possible. ...and sunlight as well.

[Willow]

good to know...but geez if it's not one thing its another...no wonder my wife gets bothered when I start playing around with the system. I may resort to having them sit on the end tables but bookshelvs are not cubes....wish more speakers came with a design like polks power ports !!! now thats a good idea

[Tarheel_]

can you mount them against the wall and increase the freq. crossover at a very high level and let most/all the bass go to your sub? I have rear ported speakers mounted onto a wall, but they are polks and have a 2" gap...I have the crossover set at 200hz...going on 2.5 years without problem and i listen at med to high volume. Just a thought....

[Mr Peabody]

I have rear ported speakers and I needed my speakers to be almost 6 feet high because of a high backed sofa. What I ended up doing was going to the hardware store and buying some L brackets and a couple shelves. I subscribe to the configuration were my rears are facing each other and I have about 2 inches between my ports and wall. I haven't noticed any odd sounds. I do have port plugs but haven't used them. I set the rear speaker setting to small. If you subscribe to the rear speakers facing the listening area, the tilt should give your speakers plenty of room to breathe. You have to hide the speaker wire? If you figure that one out let me know. Maybe we can plant a climbing vine next to them.