ShinOBIWAN that are amazing.
only had a quick read after being linked by a mate, but how do you calculate the shapes etc needed for inside the frame, also why line with led and bitumen.
Lo mate,
The lead and bitumen are done so as to further damp the enclosures and make them more 'dead'. The less sound that's transmitted as vibration through the cabinets and into the air the better. The goal with all loudspeaker is to hear only the drivers and not the cabinets that they're sat in.
Calculating the internal volumes is a tricky process but certainly nothing like impossible. Normally you'd select a driver then derive cabinet volumes based on the Thiele/Small parameter. Now the Thiele and Small parameters describe the electrical and mechanical properties a drivers in terms of mathematics - in other words they're quantified objective data that can be used in simulation software. All sorts of things can be identified from the data including optimum loading (sealed, ported, transmission line etc.) and even roughly what sound related qualities the driver might display. Using the Thiele/Small parameters you can strike a volume using simulation software that allows for a blend of bass extension vs. cabinet volume vs. maximum sound pressure level. In a nutshell you take a driver and calculate the volume needed using simulation software.
However, for this project I worked the other way around, I planned out the cabinet roughly and then went to a custom driver manufacturer in Denmark called Audiotechnology. I worked with these guys to spec an 8" bass driver and a 5" midrange that would fit into what I wanted work with. Now when I say custom I mean that they can alter the physical design specifics of the driver to accurately adjust the Thiele/Small parameters I mentioned above, its easy to see the benefits of that because you get exactly what you want rather than having to settle for an off the shelf driver where your at the mercy of what the manufacturer think you'd want. The problem is it takes a fair amount of knowledge and even I wasn't quite prepared for how indepth it would be so initially what I wanted wasn't possible and I had to go back to the design stage and make changes but once that was done everything was given a green light and the custom drivers were made.
but those do look amazing speakers, is there any way of getting that kind of finish(the gloss black) on a metal case that you know of?
Its even easier on metal since its non porous. MDF takes a lot of prep work to ensure its sealed for a high gloss finish, most metal such as alu and steel are a piece of **** in comparison.
how do they sound, as i said i skimmed mainly @ pictures but i would assume they are better than most bo8ightspeakers.
You have to hear them to believe it. With quality recordings you are lifted from your listening room and into the performance. Home theater is very intense and gaming just draws you in even further, especially with the combination of the sound setup and the 102" screen. Its very difficult to describe sound but most people who hear them are lost for words during the first few minutes - which is always a good sign.
Do you design them to work best in the room you are using them by any chance?
Yes what you've mentioned here is one of the key benefits to designing your own speaker. You can tailor it to you room, listening preferences, partnering kit and your collections of tunes. Its important to note that a good speaker is a good speaker and should work well in a variety of situations but having the option to fine tune for personal situation and preference always brings that last ounce of performance out.