I have a B & W 684 speaker kit and when setting it up there are some foam plugs to put in the back of the speakers. I am wondering what these are for.
B & W 684 Speaker package
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They restrict the air flow in the reflex tuning ports, and can thus reduce the bass response of the speakers.
They may be useful if you suffer from excessive bass boom in your room, or if you are forced to use the speakers close to walls or corners.
They may be useful if you suffer from excessive bass boom in your room, or if you are forced to use the speakers close to walls or corners.
so in theory it would be used more for the front speakers as the rears are for backgroud effects, am i on the right track. I do have the rears close to the back corner of the room.
No, can be used in any of the speakers, but if your rears are close to the rear wall I'd suggest bunging them - although the lower level of the rear speakers may well mean bass boom is less of a problem with them.
Hey mark8par 😉
How do you think your speakers are doing in 2 channel music listening?
Just curious 😛
How do you think your speakers are doing in 2 channel music listening?
Just curious 😛
Hi Andrew,
An interesting point you've made regarding the use of bungs in the aforementioned b&w's.
Question:can placing said speakers close to a wall not only cause bass boom, could they also rob the speakers of producing the bass they are capable of? hence the use of the supplied bungs?
An interesting point you've made regarding the use of bungs in the aforementioned b&w's.
Question:can placing said speakers close to a wall not only cause bass boom, could they also rob the speakers of producing the bass they are capable of? hence the use of the supplied bungs?
saturday:Question:can placing said speakers close to a wall not only cause bass boom, could they also rob the speakers of producing the bass they are capable of? hence the use of the supplied bungs?
No: getting them close to the walls is likely to overemphasise the bass, which is when the bungs may come in handy...
No: getting them close to the walls is likely to overemphasise the bass, which is when the bungs may come in handy...
mark8par:would i need to recalibrate the amp/speakers after putting them in the rear speakers.
Well, they will affect the tonal balance of the speakers, so may be
worth doing.
Well, they will affect the tonal balance of the speakers, so may be
worth doing.
Sorry to butt in
, on a related note, this would explain what the similar foam discs are that came pre installed in the reflex ports of the centre speaker of my Q Acoustics 5.1 pack. My question is, given what has been discussed, would I be best to keep them installed or remove them. The speaker sits in front of my TV with just over 10 cm clearance from the screen to the rear of the speaker.
Thanks, and once again sorry to butt in, but didn't want to start a new thread just for this!
Thanks, and once again sorry to butt in, but didn't want to start a new thread just for this!
I'd say the simple answer would be to try it, and see whether your prefer the sound bunged or unbunged.
There's no right or wrong answer in this - just whatever sounds best to you...
There's no right or wrong answer in this - just whatever sounds best to you...
Ok, thanks very much for the advice Andrew, I'll have a look at them later and see which sounds better
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