Check out Powersoft Quatrocanali 2404 and Armonia + DSP
Armonia is a free DSP down load from Powersoft . You can also use Smaart V8 to hone frequency response in the DSP.
I actually used the Powersoft Quattrocanali 2404 DSP in my active setup for a while.
Pros:
- Dynamics
- Dante
- Bass weight
- Extensive on board IIR DSP
Cons:
- Sound quality, not on par with Hypex/Purifi sound quality
- Limited FIR TAPs for convolution DSP crossovers and phase correction
- My Purifi amplifiers sound much better, using software convolution engine
I settled on using Roon's convolution FIR engine to implement POS convolution active crossovers.
I also applied an additional 2 FIR additional EQ points, providing a 2db gentle roll off.
Low shelf 90, 1db, Q0.6
High shelf 500, -1db, Q0.6
Signal path is:
Intel NUC S4 running Roon Rock > (USB) > Raspberry Pi4b >(USB) > Motu Mk5 Ultralite 10 channel DAC
3x NAD c298 amplifiers operate in low gain, 8.5db
Amp 1, Runs in stereo feeding JBL D2430K L&R Compression drivers
Amp 2, Bridged output to first JBL 2216ND woofer
Amp 3, Bridged output to second JBL 2216ND woofer
I highly recommend this setup for the JBL M2's.