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Cheers for that Matty,

Well given that they look like a considerable improvement from a domestic point of view compared to the monstrous lumps of foam that seem to constitute most room treatment, they look rather good. Dunno if £300 to £400 is all that expensive tbh, it'd depend how many you would need. would you just be talking about one of these ina typical UK living room or banks of them? How critical is placement?

Shame they don't do half width versions - two of those rather than one 1m wide version would be a lot easier to place without raising wifely eyebrows.

One final question. I can see how this sort of thing could tame bass humps, but how do they tackle big nulls? (edit: actually giving this a few more seconds thought, would I be right in thinking that as the cause of nulls is effectively the same as humps, just with sound waves cancelling rather than reinforcing, they are both dealt with in the same way?)

All this discussion has got me wondering and this afternoon I downloaded from the Realtraps site a series of test tones. 10Hz up to 300Hz in 1 Hz jumps. Its the first time I ever tried something like this in my living room and I noted four things

1. Even without a meter you can tell a lot more about your rooms acoustics with these test tones than with music (should be obvious really, music's very messy)

2. I would appear to have more obvious problems with nulls than humps (Maybe its just that nulls are simply more obvious when using test tones - with music it seems that humps are more obvious).

3. Nulls and humps appear and disappear in different parts of the room in a manner which is quite disconcerting.

4. Some of the nulls and humps occur over a very narrow bandwidth and it struck me that tackling these kind of problems with very narrow bandwidth treatments like Helmholtz resonators might prove very tricky.

<blockquote data-quote="Uncle Ants" data-source="post: 631602" data-attributes="member: 1411">Cheers for that Matty,Well given that they look like a considerable improvement from a&nbsp; domestic point of view compared to the monstrous lumps of foam that seem to constitute most room treatment, they look rather good.&nbsp; Dunno if £300 to £400 is all that expensive tbh, it'd depend how many you would need.&nbsp; would you just be talking about one of these ina typical UK living room or banks of them?&nbsp; How critical is placement?&nbsp; Shame they don't do half width versions - two of those rather than one 1m wide version would be a lot easier to place without raising wifely eyebrows.One final question.&nbsp; I can see how this sort of thing could tame bass humps, but how do they tackle big nulls? (edit: actually giving this a few more seconds thought, would I be right in thinking that as the cause of nulls is effectively the same as humps, just with sound waves cancelling rather than reinforcing, they are both dealt with in the same way?)All this discussion has got me wondering and this afternoon I downloaded from the Realtraps site a series of test tones. 10Hz up to 300Hz in 1 Hz jumps.&nbsp; Its the first time I ever tried something like this in my living room and I noted four things 1.&nbsp; Even without a meter you can tell a lot more about your rooms acoustics with these test tones than with music (should be obvious really, music's very messy) 2. I would appear to have more obvious problems with nulls than humps (Maybe its just that nulls are simply more obvious when using test tones - with music it seems that humps are more obvious).3. Nulls and humps appear and disappear in different parts of the room in a manner which is quite disconcerting.4. Some of the nulls and humps occur over a very narrow bandwidth and it struck me that tackling these kind of problems with very narrow bandwidth treatments like Helmholtz resonators might prove very tricky.</blockquote>

[QUOTE="Uncle Ants, post: 631602, member: 1411"] Cheers for that Matty, Well given that they look like a considerable improvement from a domestic point of view compared to the monstrous lumps of foam that seem to constitute most room treatment, they look rather good. Dunno if £300 to £400 is all that expensive tbh, it'd depend how many you would need. would you just be talking about one of these ina typical UK living room or banks of them? How critical is placement? Shame they don't do half width versions - two of those rather than one 1m wide version would be a lot easier to place without raising wifely eyebrows. One final question. I can see how this sort of thing could tame bass humps, but how do they tackle big nulls? (edit: actually giving this a few more seconds thought, would I be right in thinking that as the cause of nulls is effectively the same as humps, just with sound waves cancelling rather than reinforcing, they are both dealt with in the same way?) All this discussion has got me wondering and this afternoon I downloaded from the Realtraps site a series of test tones. 10Hz up to 300Hz in 1 Hz jumps. Its the first time I ever tried something like this in my living room and I noted four things 1. Even without a meter you can tell a lot more about your rooms acoustics with these test tones than with music (should be obvious really, music's very messy) 2. I would appear to have more obvious problems with nulls than humps (Maybe its just that nulls are simply more obvious when using test tones - with music it seems that humps are more obvious). 3. Nulls and humps appear and disappear in different parts of the room in a manner which is quite disconcerting. 4. Some of the nulls and humps occur over a very narrow bandwidth and it struck me that tackling these kind of problems with very narrow bandwidth treatments like Helmholtz resonators might prove very tricky. [/QUOTE]

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