Question Rear Port Bungs - How is the sound quality affected?

paulukhenry

Standard Member
Good Evening,

Just setting up my 1st 5.1.2 system and I'm juggling between rear stands or wall brackets.

Syetem:-
AV: Denon X2300W
Front L/R: Q Acoustic 3050
Centre: Q Acoustic 3090C
Rear L/R: Q Acoustic 3020
Sub: none
Ceiling Middle: Cambridge Audio C155

Question: If I use the wall brackets I'll be bunging the rear port, How detrimental to sound quality will this be?

Any assistance is appreciated

Thanks
Paul
 

paulukhenry

Standard Member
Good Evening,

Just setting up my 1st 5.1.2 system and I'm juggling between rear stands or wall brackets.

Syetem:-
AV: Denon X2300W
Front L/R: Q Acoustic 3050
Centre: Q Acoustic 3090C
Rear L/R: Q Acoustic 3020
Sub: none
Ceiling Middle: Cambridge Audio C155

Question: If I use the wall brackets I'll be bunging the rear port, How detrimental to sound quality will this be?

Any assistance is appreciated

Thanks
Paul
 

Gasp3621

Distinguished Member
@paulukhenry

It depends how much space the wall brackets leave behind speaker and wall. Q Acoustics says 20cm or more is ideal for those 3020 as bungless, if the speakers would go closer to wall you can try the port bungs. Audussey also does some correction (re-run when changing speaker location) so i think it´s worth to listen both ways if pushed closer to wall.

I got to say the 3020 are quite deep and overall largish as wall mounted, could come a little shock for your mrs. :laugh: Also as you have Atmos system they should ideally sit around seated ear height (tweeters), that´s just a reminder if you had in mind that you wall mount them high up kinda hiding them.

There is still cheap 60-100cm tall stands if you prefer the stand route and it offers you more placement options possibly. Put a small bits of blutack under speakers if you`re afraid them falling off. Fisual Dynami Duo (50£/pair) top plate should be large enough for 3020, cheap and lot of nice finishes! For Atmos system the 60cm stand height could be more ideal.

Speaker Stands - AV Online - UK Home Cinema and Hifi Specialists

Hope you get a sub soon! Something other than QA... :smashin:
 

Luminated67

Well-known Member
If you are designed to be used with or without bungs like the Q Acoustics are then the only change will be bass response.
 

b1g1an

Well-known Member
Far more importantly, a sub will add far more to your system than a couple of little things stuck to the ceiling and perfectly replace what you'd lose with the bungs in...and before you say it, no the 3050s don't go anywhere near low enough to make a sub unnecessary. The 3050s will also sound far better without doing extra bass duties.
 

paulukhenry

Standard Member
Thanks Chap's,

I Can't afford a Sub at the moment, Well not anything decent. Thanks For the advise. See attached proposed setup.... Can anyone foresee and issues?

Thanks
 

Attachments

Justabod

Active Member
My only concern from that layout would be that the Q Acoustics aren't far enough behind the listening position leaving you with bit of a hole in the rear surround.

In my set up I have my Kef R100's further behind and at a greater angle. Dolby stipulate an angle of 135-150 degrees for the rears and mine sit at 145 although to acheive this I had to move the sofa further into the room (thankfully the other half didn't mind).

It's all about compromise really as not every room can give you that perfect set up. For example I am unable to get my rear and side surrounds at ear level due to furniture and storage issues so they are wall mounted as near to ear level as possible but angled down on the brackets. If your room doesn't allow you to hit the sweet spot it's a case of as near as possible.

As for the bungs Ive never bothered with mine and they sound fantastic without them. I've never even considered putting them in and dampening the sound, just seems counter intuative to me.
 

paulukhenry

Standard Member
Thanks Justabod,

I'm new to all this, but I've spent many an hour on reviews, forums and Manufacture's web site's and I've come to the conclusion, as you point out... nothing is perfect. everyone has different hearing levels and for that matter I have slightly less hearing in my right ear. thankfully I'll be able to tweak with level settings after the initial setup.

Thanks again.
 

Shimrod

Active Member
My only concern from that layout would be that the Q Acoustics aren't far enough behind the listening position leaving you with bit of a hole in the rear surround.

In my set up I have my Kef R100's further behind and at a greater angle. Dolby stipulate an angle of 135-150 degrees for the rears and mine sit at 145 although to acheive this I had to move the sofa further into the room (thankfully the other half didn't mind).
I think there is a confusion on terminology. @paulukhenry has left & right surround, and the recommended positioning is 90-110 degrees around seating position, so the speakers in pretty much the correct place.

The placement of 135-150 degrees is for rear surround speakers in a 7.1.x system which doesn't apply in this case.
 

paulukhenry

Standard Member
Hi Chaps,

I've I'll be moving Rooms and have done a setout before installation.

My equipment has changed as I've completed my purchases!!

System:-
AV: Denon X2300W
Front L/R: Q Acoustic 3050
Centre: Q Acoustic 3090C
Surround L/R: Q Acoustic 3020
Sub: Wharefdale Diamond SW150
Ceiling Middle: Polk RC60i
Streaming: 4K Fire Stick
Blu ray: Sony UBP-X800
Cable TV: Virgin V6 Box

See attached and advise would be welcome

Cheers
Paul
 

Attachments

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