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Old 16-01-2020, 20:09   #1
Raigmore
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Subwoofer placement

I am basing a home cinema system based around the Sony HT ZF9 soundbar plus optional rear speakers got the master bedroom. The subwoofer is front ported and at present I aim to place it on a slot with 50 mm or more breathing space all around and the front surface open and unobstructed. But as there are walls around 3 sides, will this affect its functionality?
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Old 17-01-2020, 07:53   #2
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It's sure to affect the sound, but not necessarily in a bad way. Plus of course you can adjust the crossover and volume to your liking.

There are lots of online guides - The Art of Subwoofer Placement seems good, and if you're really keen to experiment (and have long leads) it includes the 'crawl' technique of testing the sub in your choice of listening position/s ...

Bottom line is to try it.

With my modest setup, I'm set for 5.1 film-watching, but if I use DPL2 or simulated 5.1 with a stereo 2.0 source, the bass output usually needs manually dialling back. (Make sure you can easily access any controls located on the sub itself). I've also read that placing the sub on a rubber (yoga) mat reduces the level of 'boominess' when placed close to walls, but I've not tried that yet.
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Old 18-01-2020, 18:07   #3
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I have been through many on-line subwoofer placement guides and there are times where different experts seem to contradict one another, making the exercise more confusing. About the only thing everyone agrees on is not to place it inside a cabinet.

In my setup, the ported front surface is completely exposed to the room and I can avoid pushing the sub too deep into the cavity so that a bit of the front part is exposed on all sides.
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Old 18-01-2020, 18:38   #4
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That's why you've just got to try it in various positions. Or more simply, place it best for the aesthetics of the room, and adjust everything else accordingly.

With each model of sub being different, and paired with different kit, and every room unique, it's not possible to have give definitive advice.

As an aside, I watched 'Joker' last night - superb film, with an excellent non-flashy soundtrack and a perfectly balanced musical score that seamlessly engaged with the sub.
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Old 19-01-2020, 12:06   #5
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I thought bass was non-directional and it didn't matter where it goes?

I have a small sub with my soundbar and it just sits under the desk with the port facing out.

Last edited by The Bear; 19-01-2020 at 12:08.
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Old 19-01-2020, 18:49   #6
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Quote:
Originally Posted by The Bear View Post
I thought bass was non-directional and it didn't matter where it goes?
Yes, but I understand that if there are too many obstructions around it, the bouncing around effect can create a partial bass null.
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Old 19-01-2020, 20:03   #7
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I have it covered on 3 sides, and it makes no difference. Still loud and clear.
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Old 20-01-2020, 07:33   #8
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Yep, mine is covered on 3 sides too - 1 brick wall, 1 plasterboard wall, 1 TV unit.

It even faces the 'wrong' way, cos I don't want kids sticking anything inside the port!
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