We ended up going a different direction,
I got it to work, and it would crash. I got the 1st measurements done and it crashed
I was trying to load crossovers and gave up. It just would boot me off
John had informed me that the presets are eq only so that along with the crashing
And the hourly rate we decided go with a minidsp , it does what the guy wants
By having presets that can turn off channels, and has Dirac live so it’s still a win win
And he has another device upstream also that has tons of fir ability so any residual group delay can be dealt with quite easily. I promised I wouldn’t spill the beans, but think million tap filters if one wanted. (Jel)
I am super impressed with the TDA software, that works so good. Way better than I thought it would I am definitely thinking about buying a copy for me.
I like tda very much. So much easier than reading impulses.
I wish I coulda heard it tho. Dang it. And this guy will have more fun with the mini being all his amps work off one dsp instead of having the apl and that another dsp for his rears.
And not having to worry about fir delay between the dsps . That makes tuning no fun, and if the apl has impulse offsets longer than 20.21ms the rears just wouldn’t have worked anyway.
On the 1012 tho the crossovers have a cutoff frequency for both the sides of the crossover that can’t be altered? Meaning, if you cross the sub at 100 the mid is 100 and no way to enter it diffrent forced complimentary crossover.
Makes me wonder if he does forward-backward filtering on that, it would give better stopband attinuation , the inband amplitude would carry the error which could be eq if I remember reading about backward running fir. Possibly saves taps too....so where he wanted overlapping speakers wouldn’t have had to do the peq option on crossovers. Not that that’s horrible, just one more thing that made this not the best option for this install , although would have still worked in a roundabout way. Just seemed like a lot of things to manage and work just to turn off a speaker pair or change a crossover slope or time align to another dsp.
But I digress,
Very curious about this dsp tho. Still has a lot of good things going on, for a traditional multi-way it could be one of the best. Definitely top 3 in my book
Another day I’ll get to work on one. Maybe I’ll buy one for a project.
I think the install drive was messed up I don’t know. But it all worked out well and worked out better for this particular setup
The defined/locked in crossover junctions is a good thing. The APL1012 corrects each drivers response to perfectly (or as close as can be achieved) align its acoustic response with that electrical filter so you have essentially beautifully aligned crossovers between drivers. There would be no reason to underlap or overlap if you have perfectly summed response. Just use the EQ for that