Does anyone know of any AVRs that are capable of being modified to use as an active crossover and amplifier? Here's what I want: a single box with a digital input and 6x or 8x amplifier outputs with individual DSP per-channel. I was thinking that AVRs have all of the components you'd need for such a device: multiple channels of amplification and programmable DSP. But any stock AVR firmware certainly wouldn't support arbitrary crossover and EQ per-channel, right? So has anyone ever heard of re-flashing a DSP in an AVR? Or are they generally somehow locked down to make that impossible? It's even somewhat hard to find detailed teardowns of AVRs to start to evaluate which brands/models may be more susceptible to modification. It would be great to discover a relatively low-cost AVR that could be hacked into a simple multi-way stereo amp.