Addicted to Fun and Learning
- Aug 7, 2019
Forgot to mention it, but yeah, I was planning on filling all volume with rock wool.
Why skip the divider?
What's a Sealed DOS
both baffle was done with a flush cut bit for the opening. so they're are as symmetric as I could make them. Reading your comment I think I get what you mean. Id have to make sur the opening are positioned exactly at the same distance from the back and the front for example.
Also made me realize I forgot to put a picture of my "folded acrylic grille" concept.
I really dont know how to answer to this. I dont know.
thanks for you reply!
DOS stands for Dual Opposed Subwoofer - when there are 2 or 4, etc. bass drivers in one single sealed cabinet on the opposing sides (like 1-1, 2-2, etc.)
You can check some of my designs:
This is yet another project that we will start relatively soon. It is linked to another in-process project: https://www.audiosciencereview.com/forum/index.php?threads/home-theater-project-using-markaudio-chn110.26019/ that we are doing for my neighbor (who is the carpenter :)) The above project...
I am posting this on behalf and with the permission of one of my friends who has built this project Concept: Dual opposed subwoofer (DOS) using 4 pieces of 6.5" Tang Band W6-1139SIF subwoofers, 2 in the front, 2 in the rear Closed cabinet with the below properties: Made with 22mm thick...
and there is a fresh one too but the internals are not done yet:
Just sharing yet another project I designed for my brother-in-law this time Basically it is about building two sealed cabinets (baltic birch plywood) with Markaudio CHN110 drivers and accompany them with a sealed DOS (dual opposed subwoofer) sub using 2x Beyma 8BR40/N drivers. Here is how the...
I have never seen a DOS with a divider - that would make it into two separate subs.
Your UM15 drivers are DVC subs; DVC stands for Dual Voice Coil, meaning that each driver has two voice coils (having a resistance of 2 ohm each) hence two sets of speaker terminals
If you want to drive them with a 1-channel amp you will need to wire them properly. You can wire them in three ways:
1. Total resistance will be 0.5 ohm
2. Total resistance will be 2 ohm
3. Total resistance will be 8 ohm
I guess you would want to go for the 8 ohm solution which requires the voice coils to be connected in series (so 2+2 ohms = 4 ohms) and then wire the drivers in series too (4+4 ohms = 8 ohm)
If you will be driving them with a 2-channel amp then you will only need to wire the voice coils in each driver, again in series to have 4 ohms each