It'll be fine.
If you ever want more bass you can easily add some subs.
Not sure about the roll back on the baffles. It would probably be better but I don't know(or have the patience) on how to simulate it.
Use ARTA or any other real time analyzers with a mic on a boom or mic stand to see how the response changes with angles as you move across the listening plane. Physically move the mic while simultaneously looking at the screen. Saves a lot of time.
Only correct the issues that track at angles. Other peaks and dips should be addressed mechanically or ignored.
If you ever want more bass you can easily add some subs.
Not sure about the roll back on the baffles. It would probably be better but I don't know(or have the patience) on how to simulate it.
Use ARTA or any other real time analyzers with a mic on a boom or mic stand to see how the response changes with angles as you move across the listening plane. Physically move the mic while simultaneously looking at the screen. Saves a lot of time.
Only correct the issues that track at angles. Other peaks and dips should be addressed mechanically or ignored.
Last edited:
Okay, thats what i thought. Thank you!
What i extracted from briefly reading over this is that its mostly about reducing floorprint of the speaker and some distortion reduction. Though i have never seen a comparison of one slot loaded driver vs the same driver in the same slotless baffle. The distortion reduction could come from the added drivers on the same space i guess. Since the BMS driver has alright distortion i probably wont bother with this and the linkwitz transform can take care of qts and fs so the only actual benefit would be looks. I will think about it
i use rew with apoeq and plan to get room treatment in place as soon as i can start using that room for audio!
I am not saying that it won't work.
Here is the summary of what I say:
With one 15" per side (reasonable u frame), you will get usable bass down to 50hz. With two probably 40hz.
And it will be prudent to apply a high pass filter at those F levels unless you listen low bass/low volume.
OB bass down to 50hz is still awesome...
Here is the summary of what I say:
With one 15" per side (reasonable u frame), you will get usable bass down to 50hz. With two probably 40hz.
And it will be prudent to apply a high pass filter at those F levels unless you listen low bass/low volume.
OB bass down to 50hz is still awesome...
You won't reduce floorprint with this config (or a simple SL a la N.Pass) as the cavity usually add ups volume.
Distortion reduction ( 2nd harmonic) is the whole point of this config yes ( as are push pull in general).
You could find some comparison performed: search for the one performed by Weltersys with a pair of Eminence 12" lab subs, it include measurements,etc,etc,... Typical from someone serious about his design and evaluation.
You'll see that for him it is not to his taste: the fact there is cancellation of 2nd harmonics doesn't cope with his preference when you push the level ( the ratio between 2nd and 3rd harmonics is modified making the third more dominant hence a different rendering).
If you ever heard a servo sub ( distortion reduction through feedback from cone motion /active system) results are not very differents, in the same kind of family.
Food for thoughts yes, that is the point. 😉
I am now leaning towards a modified ripol design or the early linkwitz slot loaded subwoofer without double drivers. This would my problem of designing a good looking baffle due to the way smaller footprint. The nelson pass variant is interesting but in its original form not really my thing. I will experiment with said designs and removed tops, unequal sides, etc