Originally Posted by markmon1
A DSP digitally modifies an analog signal. It doesn't mean it works on a digital signal. Your diagram doesn't make sense. It's not converted from analog to digital and back each time processing is done. Haven't you heard of things like the minidsp or amps that have DSP in them? They aren't also DACs. You're quite confused.
LOL! Speaking from authority and being absolutely wrong -- certainly an AVS first
A DSP, by necessity, works on a digital signal -- it is DIGITAL signal processor after all. Thus, in order for it to function with an analog signal, it needs an analog-to-digital converter (ADC) in front of it. And, once you apply the DSP's algorithms (FIR, IIR filters, etc) you need to convert back to analog at some point (hence, a digital-to-analog converter, DAC).
Therefore, a MiniDSP with an analog input and output has both an ADC and a DAC inside it, by necessity! You're the one confused!
Now, as for the original poster -- the answer is simple; NO! As others have said, processors with any digital outputs are expensive. And it's probably only because folks who require such a thing are in the minority and thus in a niche market wherein economies of scale are not as good. Same as folks are want a pure pre-processor vs. a receiver.
Finally, I recognize and appreciate the desire to have a "pure" signal path with a single DAC conversion before amplification, but I'd bet the benefits of performing the x-over / EQ in the digital domain overwhelms any ADC->DAC insertions into your signal chain incurred to do so.
Oh, and if you're going to do volume in the digital domain, as required by having digital outputs, you probably want better than 16-bit resolution typical of S/P-DIF interfaces (though it can support 24bits, I'm uncertain how much consumer gear allows it). Of course, high channel count and higher bitrates / depths is why things like AES67 exist, which, I believe, is what Trinnov supports.