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JB-
Digital signal processor box. You get 2 channels in (l+r). You can split that into 8 channels out. Those outputs can be left, right or both (mono), each of the 8 can be individually EQ’d and assigned a frequency band.
I’ll be using 5 outputs. #1 is left channel 80-800hz, #2 is the same but for right channel. 3&4 are 800-20khz left and right, #5 is 20-80hz mono to the subwoofer.
The idea is that none of the drivers is being given frequencies it’s no good at reproducing.
Each channel needs d/a conversion. Each DAC has 2 channels so I need 3 of them.
Stevethecoffee
Had most of the kit arrive for my complicate all the things bi-amping project and started putting it together.
I was going to use the amps in the 2 topping MX3s for the sake of matching and seeing whether budget magic happens. Changed my mind on that as all my nice kit is in this system and my unproven prejudices compel my to tie all that in instead, plus I don’t want to rig this up more than once, especially once I get to doing measurement based eq filters.
It’s going to be SS amp with my little Cambridge dac for the woofers, posh dac and valve amp for the horns and one of the MX3 dac/amps taking coax in and passing through to the subwoofer out. Whether it sounds right together is a lottery, the 2 power amps are rated 55w and 60w so that’s alright. I reckon a 12” woofer and a pair of horns don’t share any sort of signature in isolation so I’m not worried about it.
I’ve already set the crossovers and levels in the software, that’s really intuitive.
I’ll be using the Chromecast as source as it’s the only way I’ve got to get signal in (the DSP doesn’t take USB) but I’ve got a USB / SPDIF converter on the way so I’ll be able to use laptop and rPi streamer too when it arrives.
Tomorrow I’ll be connecting it up and probably scratching my head a lot.