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Compact wall-mountable bookshelf speakers?

Sunsetter

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Feb 10, 2021
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I am looking for advice on relatively compact bookshelf speakers that have threaded wall-mount capability for a 5.1.2 home theater system in a family room that is approximately 14' long and 10' wide. I would be getting left, center, right and surrounds to go with existing in-ceiling Atmos speakers and an older Hsu VTF sub that I would move into the room. I currently have a Definitive ProCinema 600 sub/sat system here that I am increasingly dissatisfied with ever since I got Revel F328be speakers in my living room. This system is currently used 70% for movies/TV and 30% for music, although that would become more balanced if I had better speakers. I have to go wall mount on the left, right and surrounds for various reasons, and speakers with relatively shallow depth will be better for me due to a chair that sits in front of one of the front speakers (the speaker itself would be fully above the chair). WAF is a key consideration here, particularly due to the looming presence of the Revels two rooms over. I figure I need acoustic suspension speakers in order to avoid a rear-firing port just inches away from the wall, and have been researching the NHT C3, C1 and SuperOne. I figure I would go C3 for fronts and C1 for surrounds, or SuperOne all around (with corresponding center channel in each case). I am really just not seeing any other options out there for acoustic suspension speakers with wall-mount threaded inserts. Anyone know of anything else I should check out for this situation?
 
Anyone know of anything else I should check out for this situation?

Consider whether the size and arrangement of the 'rear port' for a Polk Audio Signature Elite ES10 loudspeaker can work for your listening space. I am not aware of any measurements of the Polk Audio ES10. Amir measured the larger Polk Audio ES20 and assessed it to be performant. The Polk Audio ES20 and ES10 use the same tweeter and cross-over point. I expect the ES10 to measure similarly to the ES20 above the cross-over point.

 
Axiom has a line of on wall speakers. Not threaded mounting though. They have a bracket that integrates the wire connection.

Deals can found looking at the B stock.
 
Sarted reading about the 1961s and got very interested, only to see they have been unfortunately discontinued...
Since that only happened a little earlier this year, that simply means they cost less ;)

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Another speaker discontinued just this month option is the Revel S16.

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Perlisten is worth looking at. They have both on wall and very clean boxed in wall that could go on wall. And their sound power is such they are likely to satisfy a Revel fan.

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And then something brand new: RBH has introduced at least four new on wall speakers. They've got both dome and ribbon tweeters. Their speakers haven't always performed well* (ie, flat on axis and consistent off axis) but maybe we'll see some measurements soon.

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*Examples of what I mean about RBH attached, via Audioholics measurements summarized on Spinorama.org
 

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A new option with full objective measurements.

Measurements taken in full space. So, one can expect an SBIR cancelltion dip when mounting to a wall. But, I wonder if one were to mount it just off the wall an an angle-able wall mount... which would probably allow for 2-3 inches of absorption material behind the speaker. Think this would kill the SBIR problem?
 
A new option with full objective measurements.

Measurements taken in full space. So, one can expect an SBIR cancelltion dip when mounting to a wall. But, I wonder if one were to mount it just off the wall an an angle-able wall mount... which would probably allow for 2-3 inches of absorption material behind the speaker. Think this would kill the SBIR problem?
Yes.

What frequency should you worry about?

85/x=y hz

where x=meters from the wall to the front of speaker (the baffle).

For example: for a speaker whose baffle is .8 meters from the front wall, the math looks like this: 85/0.8=106hz. In the case of this speaker, it is 6.25 inches of depth plus let say 3" panel so the speaker baffle is about 10" off the wall, or .25 meters. So the SBIR is happening around 340hz.

3. The same math should be done for each other wall, floor and ceiling. Anywhere that the dip occurs above 80hz (in a system with an 80hz crossover) place a panel, if possible. But let's keep focused on the wall right next to the panel.

4. Then Bob Gold will tell you how thick a panel you need on that same wall (between speaker and wall, the distance you measured) in line with the speaker, to kill that problematic frequency. Spoiler alert, just about any of the common insulation materials like OC703, or similar Rockwool materials has an absorption coefficient of 1 or more and will kill all that SBIR. In fact, you could probably get away with 2" thick material.
 
Axiom is an option in the sense that they exist, but there aren't any good spinorama measurements of them, so they cost more and are not clearly any better. At least with the Ascend speakers you know exactly what you are getting in terms of performance.
 
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Neat Iota used as rear surrounds - they have a double threaded fixing. They are intended to be used landscape which helps with space in my situation. I doubt they measure brilliantly , but work well enough for my use case and space
 
Yes.

What frequency should you worry about?

85/x=y hz

where x=meters from the wall to the front of speaker (the baffle).

For example: for a speaker whose baffle is .8 meters from the front wall, the math looks like this: 85/0.8=106hz. In the case of this speaker, it is 6.25 inches of depth plus let say 3" panel so the speaker baffle is about 10" off the wall, or .25 meters. So the SBIR is happening around 340hz.

3. The same math should be done for each other wall, floor and ceiling. Anywhere that the dip occurs above 80hz (in a system with an 80hz crossover) place a panel, if possible. But let's keep focused on the wall right next to the panel.

4. Then Bob Gold will tell you how thick a panel you need on that same wall (between speaker and wall, the distance you measured) in line with the speaker, to kill that problematic frequency. Spoiler alert, just about any of the common insulation materials like OC703, or similar Rockwool materials has an absorption coefficient of 1 or more and will kill all that SBIR. In fact, you could probably get away with 2" thick material.
Thanks Nathan. That is quite the revelation for me. I have been struggling with this dilemma for quite some time. With the particular focus on off-axis response of the aforementioned Ascend product... I assume one could really get away with mounting them flat on the 2" rigid fiberglass for most channels and keep the overall depth down to 8.5". Would one need to (or, any benefit to doing so) make the fiberglass board larger than the base of the speaker?
 
The
Yes the larger the better.
Then, for the purpose of minimizing SBIR (not treating the room as a whole)... how much bigger (then the actual speaker) would one need to make the absorption base?
 
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