i’ve got vim boards, tone boards and would like to design an active system around them,
Lately i also acquired this that could be the missing link
My idea is to use vim => nanodigi => 2 to 4 tone boards, each for a specific frequence range
Please comment and challenge my idea
I have seen where some audiophiles prefer full-range(single driver per channel) speaker systems over multi way systems to avoid phase issues and other component-induced undesireable qualities. How many divisions in frequency would you shoot for?
I generally prefer 2-way per channel plus a subwoofer, while I am no audiophile, I do have a very high appreciation for clean, dynamic audio and a realistic soundstage.
One of my former hobbies was speaker system design and construction. The most freq divisions I had used in a single tower cabinet(per channel) was subwoofer(150Hz), woofer(150-5600Hz), tweeter(5600Hz-25kHz). The high frequency crossover point made it very difficult to achieve proper driver spacing between the tweeter and woofer, this can cause phase issues. The more individual drivers(woofer, mid, tweeter, etc) used, the more complicated and difficult it is to match driver characteristics, such as sensitivity and tonal quality at the cutoff(crossover freq) points.
Back in those days, I always wanted to try a digital crossover, something like the Behringer DCX2496, just to see if I could achieve better results with that tower system. Since it offered very precise cutoff freq as well as phase and level settings and even crossover types(Butterworth, Bessel and Linkwitz-Riley). Unfortunately, my speaker building hobby ran its course before I acquired a digital crossover. I still have the towers, never felt like they achieved their potential. I worked on their passive crossovers many times but just could not get them dialed-in with the drivers and cutoffs chosen.
Yours would be an interesting setup. Keep us posted on its development. If you are successful, I may have to pick up one more TB, TB2P or TB2(when available), plus the DSP you linked to and see if I can’t finally get those towers dialed-in.
The crossover point surely depend on the choice of the drivers. Extreme frequencies will require their own ad hoc drives because
for lows, you need to move air and only a large emmiting surface is able to do that properly,
At the other end, only a tweeter with his smallness and lightness will be able to provide the expected delicacy and airiness,
In between, some seriously designed full range driver shall handle as large band as it can possibly do.
One driver combination could simply be those of a passive kef ls50 + an active subwoofer.
Xover points could be something like 90 to 140Hz and 6 to 9KHz
Seems a reasonable plan. You could look to the Linkwitz designs or some of the ones using the FusionAmps for inspiration: