Howdy folks. Sorry for so many questions lately, but I have one more
I am looking for a midtl cabinet design for the Mark Audio Alpair 7MS 4" driver. Specs attached below, although I'm sure most of you are already familiar.
I'm trying to design a hybrid open baffle WAW speaker, with OB bass and a midtl mid/high end. Aesthetically my speaker will look from the front kind of like a Klipschorn, and I'm going for the same modular design where the mid/hi section can be separated from the bass section.
Does anyone know of any midtl cabinet designs for the 7MS, or of a design that would be suitable?
Dave (planet10) attached this picture in an old thread, and I quite like the look of it, and it seems like exactly what I want from a design perspective. I will attach that also. I am comfortable paying for plans
By the way, I'll be crossing over the Alpair at 550Hz, and I have no preference between an openly vented midtl and an aperiodic. Intuitively, I am guessing probably an aperiodic would be more suitable for my application?
Thanks all
I am looking for a midtl cabinet design for the Mark Audio Alpair 7MS 4" driver. Specs attached below, although I'm sure most of you are already familiar.
I'm trying to design a hybrid open baffle WAW speaker, with OB bass and a midtl mid/high end. Aesthetically my speaker will look from the front kind of like a Klipschorn, and I'm going for the same modular design where the mid/hi section can be separated from the bass section.
Does anyone know of any midtl cabinet designs for the 7MS, or of a design that would be suitable?
Dave (planet10) attached this picture in an old thread, and I quite like the look of it, and it seems like exactly what I want from a design perspective. I will attach that also. I am comfortable paying for plans
By the way, I'll be crossing over the Alpair at 550Hz, and I have no preference between an openly vented midtl and an aperiodic. Intuitively, I am guessing probably an aperiodic would be more suitable for my application?
Thanks all
Attachments
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Given the very high XO, you have a large latitude on design.
OB LF and monoPOle up top is kinda weird, but no different in concept than an OB with horn mid and or tweeter.
I’d think that given the concept a midTL that uses the back of the baffle as one side of the TL. Similar to the midTL in these:
midTL runs down the front, exit just in front of the black bit.
dave
OB LF and monoPOle up top is kinda weird, but no different in concept than an OB with horn mid and or tweeter.
I’d think that given the concept a midTL that uses the back of the baffle as one side of the TL. Similar to the midTL in these:

midTL runs down the front, exit just in front of the black bit.
dave
Ok, that makes sense to me. After all, since the bass will be OB I will have plenty of space between speaker and back wall. Thanks for the tip.
My thinking is that open baffle is best suited to the bass region. Reduced room interaction, and presumably improved dynamics and transient response.
Wide dispersion is inevitable in the bass, so I might as well lean into it and try to optimize it is my reasoning.
It does not make sense to me personally to try to create a dipole HF when you can create a system with a low, yet even dispersion in the upper registers.
As I said in the other thread we were talking on though. I am a newbie, so I am basically just listening to other people and making intuitive judgements
My thinking is that open baffle is best suited to the bass region. Reduced room interaction, and presumably improved dynamics and transient response.
Wide dispersion is inevitable in the bass, so I might as well lean into it and try to optimize it is my reasoning.
It does not make sense to me personally to try to create a dipole HF when you can create a system with a low, yet even dispersion in the upper registers.
As I said in the other thread we were talking on though. I am a newbie, so I am basically just listening to other people and making intuitive judgements
My thinking is that open baffle is best suited to the bass region. Reduced room interaction, and presumably improved dynamics and transient response.
Interaction is different not reduced.
I suspect the room will play a role. You do not get "improved dynamics and transient response” just because it is OB, and you need WAY more cone area and usually power.
dave
Either way, I'm sure I will reach satisfactory results. The bass section will be inspired by XRK971's SLOB OB (now called XSD)
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That is a good topology… i still think push-push and good woofers would be a better approach. It is a design choice basedon using cheap woofers.This is from the early 2k’s: https://www.t-linespeakers.org/FALL/dipole.html
dave

dave
Woah, cool.That is a good topology… i still think push-push and good woofers would be a better approach. It is a design choice basedon using cheap woofers.This is from the early 2k’s: https://www.t-linespeakers.org/FALL/dipole.html
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dave
There's 'no replacement for displacement', so go big or go home when it comes to (sub/mid) bass reproduction! 😉
Hmm, true, though there's the perception of increased dynamics and transient response due to rolled off (mid) bass based on driver Qt, emphasizing the mids-up, though as we know the room can muck it up, so just like in real estate it's 'location, location, location'I suspect the room will play a role. You do not get "improved dynamics and transient response” just because it is OB

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