What amp you use depends… a higher Rout amplifier needs a box that takes some care in flattening the impedance.
dave
dave
Has anyone tried building the St Helens Top Firing Vented Box for the CHN-110 from the official web page ?
https://www.markaudio.com/wp-content/uploads/2022/09/CHN110-St-Helens-top-firing-vented-box.png
I have limited space in my listening room, so this enclosure seems a perfect fit, but I was wondering if anyone has experience with it ?
Thanks in advance!
https://www.markaudio.com/wp-content/uploads/2022/09/CHN110-St-Helens-top-firing-vented-box.png
I have limited space in my listening room, so this enclosure seems a perfect fit, but I was wondering if anyone has experience with it ?
Thanks in advance!
Interesting indeed? Smaller than the Kewel yet goes some 10hz lower? I'm sure Planet10 or Scottmoose can help as they have produced several designs for the CHN110.
They look really nice. Are you pleased with the sound? How do you design a slot over a port? Is there a conversion formula. I do like the old school appearance of a slot
They are good, i have many speakers, but these are (with the big fanes) in the main spot now for some time. They are not eq'ed at all and don't need it.
The MLTL was designed from start with a slot port. How to do the conversion i don't really know (i'll have to research it) i use square cm for how big the area must be and make sure the slot is not more than 1:5 height vs width and big enough for the air speed to be low enough to not disturb. The math for that you can find on the site of Martin King or use hornrsp (like most do today) to calculate. Speaker design is math mostly, and i'm good at math the oldskool way (by head or pen and patper) so that is how i do it.
I typically use this:http://p10hifi.net/FAL/downloads/Changing-Port-Size.pdf
My modeler generates slot vent sizes, i use that when doing an original design.
dave
My modeler generates slot vent sizes, i use that when doing an original design.
dave
Hi Dave. I'm being curious as to converting a cylindrical port for a particular frequency to a slotted one for the same spec. Aka the old school look.
With the right (high qts) driver, this can be magic. But it does not work for all drivers. And then i damp the port with some mouse or thick cloth like an aperiodic (just less damping than typical).
i did some inroom measurements of my CHN110 MLTL... Off course you see the room modes in the bass section as my listening room is not treated and i used here no eq in any form. This is amp direct to driver in the cabinet in room from my listening position more or less.
