[puff]

I usually run 44. I've always thought that it's better to clock off of BNC than through spdif line.

It's definitely better to clock from BNC than via spdif.

My setup is basically the Mytek going into a MOTU 828.

Here's where it gets a little complicated. From what we've been able to tell, there are
clock management variations from MOTU to MOTU. In other words, some 828mk2's will let you send SPDIF in while clocking externally, other 828mk2's will not. The only way we've been able to tell is to try it. If you're able to send SPDIF from your Mytek into your 828 while clocking via BNC input, you're fine, and you'd be able to use the Sparrow while clocking from the Micro Clock.

I guess I'm asking if the Sparrow has a good clock built in...?

It has the exact same clock in it that the Micro Clock has. The differences would lie in how that clock gets distributed in the Micro Clock (discrete mosfet transistor-based inverter driving a pulse transformer for galvanic isolation) vs how it gets distributed in our Micro ADC (multiplexed spdif line through a transformer for galvanic isolation). There would certainly be differences between the two in terms of sound quality, and those differences would be based largely in the format that the clock takes.

Matt
Black Lion Audio