Nice, do you know the true S/N of the sound card? To be able to measure to a suitable bit depth greater than 16 bit some pretty decent spec's are required. Frequency response is not as much of an issue as most cards are good in that area. I am curious to see what you end up with and how it fairs. You should also be able to measure the DSP on its own looped back into the sound card as well and determine individual component and system measurements for analog and digital domain performance. Please keep me in the loop.
Just having fun playing in the car audio sandbox!
I am getting a Helix DSP Ultra and wonder if it makes sense to run a USB cable while the URC.3 is being installed. The yet to be released HEC Audiostage HD-Audio WiFi-Interface comes with a USB port according to a Helix Facebook post..
I'm trying to find out if the USB port will support a direct connection to an iPhone similar, or better than the HEC HD-AUDIO USB-INTERFACE? I could use some of that "Further Information".
BMW 335i E92 Morel Hybrid 402, Jehnert XE200, JL 12W3v3-4, Twk 88, JL XD500/3 and XD600/6
BMW X6 F16, Helix SDMI25 -> Helix DSP Ultra, Amps, MMats HiFi-6150D & 4250D, Arc Audio KS125.4 Mini. Front Stage Dyn Esotar 430, Esotec MD 102, Illusion Audio C8. Rear Stage, Morel Hybrid 402, Rear pillars OEM. Sub, ScanSpeak Rev 28W.
if you're running cables, run a coax/spdif, optical/toslink, and usb3 extension cord that's shielded with thick conductor cable. the expensive part is taking the interior apart and running cables, not the cables themselves.
(just keep the toslink ends covered until you need them)