I have recently moved and, unfortunately, have a b***h of a listening space which also has to double as living room. I guess I was, until now, one of the lucky ones never really having experienced serious room problems and the ones that did pose an issue or two I managed to sort with judicious placement of either speakers or/and listening position. Although I am not a proponent of room DSP I have so far resisted to use a lot of it, usually ending up switching it off as I find it can easily impact on the whole rather than just the isolated problem.
Back to the room, it's small, approx 4 x 4 square meters. My listening position is very limited in flexibility (sofa at one length of room but I am considering an IKEA Poang chair which I can move). I am experiencing a hugely annoying bass resonance which is around 45hz to 80hz (according to the WiiM's measurement results). I have tried my WiiM Pro Plus' (basic) room DSP and whilst it does somehow subdue the peak it also impacts way too much on the rest. Using the measurement but this time using the Wiim's EQ it is also possible to somewhat bring it down but again, I just didn't like it.
More drastic measures were required. So I started to stuff the ports of my Mission 752 Freedom's one by one (4 on each enclosure) and it did help but also started to impact on dynamics. This box was not designed as an IB so I unplugged 2 of the ports (rear and one on the front). This was the balance for the speaker to sound still dynamic and shift the peak slightly, making it a smidgen less obtrusive. Still, I was not happy.
I have experienced with stuffing the speakers, controlling internal reflections previously. I've ordered some stuffing wool and went about to add this to the cabinets. I have heard that these Missions had an internal standing wave issue of sorts but the stuffing, even liberally applied did not make a noticeable difference. What it did do is make one hell of a mess in my living room and the inside of the speakers!
I was completely deflated. I just never had an issue like this. Short of putting it all on ebay and as a last resort, I thought I'd add some sort of internal bracing to see if that would make a difference. Because I only had access through the driver cut out's and because I wanted horizontal bracing both front to back and side to side I ordered some extending furniture legs, the sort that you can screw in/out. I also got some double sided, thick adhesive pads and super glue. I then filled the legs with miracle sponges I had, inserted the legs, extended them tightly with pads each end and superglued the thread. Finally I covered both 'braces' with acoustic foam.
The result was that bass is now tighter than with any of the actions I took beforehand and I am applying no room EQ. There is still a faint hint when the speakers aggravate the room mode but it is, subjectively, perhaps 80% less severe.
I could add bass traps in-room but because of the size required this is just not feasible. I have to share this with my partner.
I appreciate now how good my sound was in previous environments and feel for you if you have a similar problem. Please excuse the rather bare room, we're not quite moved in yet and I have the added fun (!) of finding a place to put my headphone station.
View attachment 445955
Back to the room, it's small, approx 4 x 4 square meters. My listening position is very limited in flexibility (sofa at one length of room but I am considering an IKEA Poang chair which I can move). I am experiencing a hugely annoying bass resonance which is around 45hz to 80hz (according to the WiiM's measurement results). I have tried my WiiM Pro Plus' (basic) room DSP and whilst it does somehow subdue the peak it also impacts way too much on the rest. Using the measurement but this time using the Wiim's EQ it is also possible to somewhat bring it down but again, I just didn't like it.
More drastic measures were required. So I started to stuff the ports of my Mission 752 Freedom's one by one (4 on each enclosure) and it did help but also started to impact on dynamics. This box was not designed as an IB so I unplugged 2 of the ports (rear and one on the front). This was the balance for the speaker to sound still dynamic and shift the peak slightly, making it a smidgen less obtrusive. Still, I was not happy.
I have experienced with stuffing the speakers, controlling internal reflections previously. I've ordered some stuffing wool and went about to add this to the cabinets. I have heard that these Missions had an internal standing wave issue of sorts but the stuffing, even liberally applied did not make a noticeable difference. What it did do is make one hell of a mess in my living room and the inside of the speakers!
I was completely deflated. I just never had an issue like this. Short of putting it all on ebay and as a last resort, I thought I'd add some sort of internal bracing to see if that would make a difference. Because I only had access through the driver cut out's and because I wanted horizontal bracing both front to back and side to side I ordered some extending furniture legs, the sort that you can screw in/out. I also got some double sided, thick adhesive pads and super glue. I then filled the legs with miracle sponges I had, inserted the legs, extended them tightly with pads each end and superglued the thread. Finally I covered both 'braces' with acoustic foam.
The result was that bass is now tighter than with any of the actions I took beforehand and I am applying no room EQ. There is still a faint hint when the speakers aggravate the room mode but it is, subjectively, perhaps 80% less severe.
I could add bass traps in-room but because of the size required this is just not feasible. I have to share this with my partner.
I appreciate now how good my sound was in previous environments and feel for you if you have a similar problem. Please excuse the rather bare room, we're not quite moved in yet and I have the added fun (!) of finding a place to put my headphone station.
View attachment 445955
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