Originally Posted by Joelc
Originally Posted by George Mills
From specs on infamous QSC-322ua (not sure Ken has this exact model, it's the only QSC-322 I can find and I've been burned on that before so I'm asking). Joelc said Ken was running a QSC-322az (can't find a thing on that).

George:

Apologies, my bad as I got the "ua" and "az" mixed up...a close look at the QSC porduct line reveals that the the differnce is in the connector types but otherwose teh capabilities are all the same...

And, with respect to the 48kHz versus 96kHz debate I will let DErskine respond but I suggest that he will respond that this is not a material issue depending on speaker type, etc. and, to avoid further confusion, I say this because:

1. DErskine designed my theatre and will calibrate it in two months time; and

2. DErskine and I had this conversation/debate when we were deciding on which DSP engine to use in my new home theatre noting that I was considering more costly units that worked at 96Khz (and above) but ended up with the QSC 922uz which operates at 48Khz...and before everyone goes nuts as to why Ken uses the 322 and Joelc uses the 922 it is becasue I, unlike Ken, am using QSC amplifiers which when paired with the 922s provide real time feedback and monitoring [i.e. the 322 and the 922 have the same capabilities re: DSP but the 922 adds/has different CobraNet and other communication capabalities]...

And, that said, DErskine, feel free to chime in...

Thanks Joel. I understand your trying to help and maybe got a few things imperfect as did I.

Like I said the 96Khz and up (which ends up including Meridian Apodizing and Upsampling and all that) is a bit overrated (IMHO) and I'm in the minority on that.
But sampling at 48Khz doesn't even get you 48Khz accuracy. It gets 24Khz accuracy (information captured) anything higher than that is lost.
See http://en.wikipedia.org/wiki/Nyquist_frequency

Perhaps it samples at 96Khz giving you 48Khz effective accuracy and that is what the spec is trying to say.
That might be a possibility. But it doesn't look that way. Or the infamous spec typo.

I do believe you can do good A to D (Like Meridian's IA45 card which is 96Khz). But geesh 48Khz is not state of the art today.

You would need to sample at 384Khz to capture what comes out of a Meridian 861v6 DAC (or ADA DAC).
You would need to sample at 192Khz to capture what comes out of 96Khz BD or DVDA.
You would need to sample at 88Khz to capture what comes out of 44Khz CD.

You are talking BELOW CD.

You're system is only as good as it's weakest link.

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
HT: G61RSL, 4x5K, 5.5KHC, 2xSC6000, Transporter, HD621, Philips BDP7501 4K, Tivo, 65" LG OLED 4K C6
Computer: Foobar2000, 5K, Mojo, HiFiMan HE1000 V2