Was the baffle vertical? If so, the maybe a standing wave between the baffle and the wall?
Standing waves are neither formed by parallel surfaces nor ameliorated by non parallel surfaces. This is a myth without any foundation in basic physics.
https://www.acculution.com/single-post/037-misconceptions-in-acoustics
https://www.acculution.com/single-post/037-misconceptions-in-acoustics
When I first built my Open Baffles in 2008 or so, I had basically done the Visaton NoBox design, with a few changes.
Then I started modifying it... In the end l removed the wings and EQ-ed the bass...
Sounded more natural.
OB boxy? No way, unless it is a really bad design, and there are some resonances.
But, OB can sound inferior in some rooms, but OBs shouldn't be judged by one flawed design, in an unaproppriate room/position...
Then I started modifying it... In the end l removed the wings and EQ-ed the bass...
Sounded more natural.
OB boxy? No way, unless it is a really bad design, and there are some resonances.
But, OB can sound inferior in some rooms, but OBs shouldn't be judged by one flawed design, in an unaproppriate room/position...
Which was the exact driver?
The perceived "boxiness" may have also been dependand on the amplification.
In my case, Visaton B200 sounded best with a "transconductance" or current amp. Pass F2 (which I modified into "lite" with a lightbulb as a CCS)...
The perceived "boxiness" may have also been dependand on the amplification.
In my case, Visaton B200 sounded best with a "transconductance" or current amp. Pass F2 (which I modified into "lite" with a lightbulb as a CCS)...
B200 (with phase plugs) sounded good on an OB.
The Silver Iris 15” was a contributor tot he boxiness.
dave
The Silver Iris 15” was a contributor tot he boxiness.
dave
Most boxy bass what I heard were those Ripoles with 12"15 inches if want used as any other OB.
As tubelectron said is needed to cut it very low, at frequencies where is no point to have OB. tubelectron in his example cutting off 12" ripole at highest 60 Hz what is probably somewhere 3 times lower than 1/4 resonance. so very narrow bandwidth is usable for ripole. That is my ( and not only mine) experience as well
Below first mode frequency (even 2nd) the best option for bass is Closed box (beside horn which should be huge if properly done) as below 1st mode it is compressing the room and have 6dB rise toward the low (without any dips and peaks) and equalize natural roll off. And, this is acoustic low, not my or somebody else opinion.
I, as well, think that microdetails are masked with OB and localization is good but not the best . On other side OB giving a lot of spaciousness, huge stage and "be there" filling.
As tubelectron said is needed to cut it very low, at frequencies where is no point to have OB. tubelectron in his example cutting off 12" ripole at highest 60 Hz what is probably somewhere 3 times lower than 1/4 resonance. so very narrow bandwidth is usable for ripole. That is my ( and not only mine) experience as well
Below first mode frequency (even 2nd) the best option for bass is Closed box (beside horn which should be huge if properly done) as below 1st mode it is compressing the room and have 6dB rise toward the low (without any dips and peaks) and equalize natural roll off. And, this is acoustic low, not my or somebody else opinion.
I, as well, think that microdetails are masked with OB and localization is good but not the best . On other side OB giving a lot of spaciousness, huge stage and "be there" filling.
Speaking about Open Baffles, I am very fond of the Magnepan principle, but not as crazy as one of my Audio friends, which owns several pairs of large Magnepan speakers, while I can only afford - by lack of space - a pair of SMGb (below) :
As you can see, my pal has Magnepan Monsters (not all are here !) - surrounding my little SMGb here, in his large room, for listening comparison...
But very interestingly, there was also a pair of Open Baffles built around conventional electrodynamic speakers : the ATX from AW Audio (France), a commercial product from circa 1985. You can see some details below :
The tone of those OB was good and well balanced, something like a vertical acoustic line (Line Array), but it did not compete with the Magnepan speakers in terms of bandwidth, crispness, wideness and spatialization, due inevitably to the huge difference in emissive surface area.
We recognized the cone speaker behavior and listening (with its qualities and drawbacks), as used in conventional enclosures, nothing to do with a Magnepan or electrostatic wide surface speaker listening...
T
As you can see, my pal has Magnepan Monsters (not all are here !) - surrounding my little SMGb here, in his large room, for listening comparison...
But very interestingly, there was also a pair of Open Baffles built around conventional electrodynamic speakers : the ATX from AW Audio (France), a commercial product from circa 1985. You can see some details below :
- The central section uses from top to bottom : 2x 5" Audax WFR12 midrange cone-treated, 1x Focal T120FC tweeter, 6x 5" Audax WFR12 woofer cone-treated.
- The lateral wings are made from lacquered solid walnut.
- Dimensions are H=1480 x W=550 x D=70mm.
- Efficiency is 91dB/W/m.
- The crossover is quite complex, in a separate box, using notably RLC traps, a priori used for linearizing the bandwidth in the 100-800Hz region.
- The back of the OB is free, no damping, just a classic framed grillcloth, like on the front, just as found commonly on enclosures.
The tone of those OB was good and well balanced, something like a vertical acoustic line (Line Array), but it did not compete with the Magnepan speakers in terms of bandwidth, crispness, wideness and spatialization, due inevitably to the huge difference in emissive surface area.
We recognized the cone speaker behavior and listening (with its qualities and drawbacks), as used in conventional enclosures, nothing to do with a Magnepan or electrostatic wide surface speaker listening...
T
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If Ripols are built to specs you can cross them at 150hz and there will be no boxyness.
Don't know what animal you listened to it certainly wasn't a good build.