Dreadhead

Actually it produces preringing when sampling to digital etc or downsampling from higher bitrates but if my aim is to reproduce exactly what's on the disk then it's right to preserve the phase in the digital filter. IF you put a digital filter on that reduces the preringing that may or may not be in the digital signal (like ayre does) then you are most definitely not reproducing the analog signal captured by the digital signal (perfect or not). If you need more convincing there are some great fft programs you can mess around with.

Well let me know how it goes. I really shouldn't spend the money anyway so maybe I'll just live vicariously through you. I'm glad to hear they have gear to trial the DAD stuff.

The phase in the orginal digital signal is preserved which is linear in the audio world I believe. I see that there are many that talk about minimum phase etc for resampling which makes a lot of sense in those uses but once it makes it to the DAC I think it should put everything out with the phase it gets in: straightline phase and frequency response.

I can totally see that. If you got the two weiss's plus their stand alone firewire interface (or the integrated one) you'd definitely be all set.

Ah. well I think once you have the AX24 setup you can likely it to automatically monitor it's anlog inputs to the dac outputs etc (ie no computer required). I think what you should do is sit down and draw out a flowchart of what you want to do (if you haven't already) I think it will make it a whole lot easier for us fellow hc'ers to understand where you're coming from. All this talk of AD has me thinking of looking into how much 2 channels of AD would cost extra on the AX24 and then be able to make "master" level recordings too which would be pretty cool.

hmmm interesting....

Well the DAC1 takes in S/pdif anyway so I wouldn't worry since you can still hook it through. For what you're talking about though the AX24 seems a whole lot more cost effective and general.

I am currently wavering between the DAD and the Weiss. I hope to give them both a listen and buy one of the two after my return home. The lavry gold intrigues me with it's fully discrete R-2R with automatic calibration but I'm not sure it's worth the 2 grand over the others and the prism is even more than that though it does have the best specs written down (the phase response is insanely accurate). My big question arises because it is possible that the others are just as accurate they just don't state the phase accuracy. I don't need anything above 24/96 so I should be fine with any of them.

Happy Birth(or switch-on)day to you!

Happy birthday Al!!!!

Congrats man! Those some big mama-jamas

I'll be there (hopefully)

Heard very favorable things about this: Aurora 8 I heard the good things here: Prism ADA-8XR multi-channel modular AD/DA converter - How prism ADA 8XR compare with new DAD AX24 DAC in term of soud quality? I'm looking for the best 2 chanel DAC? (do a search on Aurora to find the post)

Well if you want AX24 goodness. I just got a quote for a DAC only with the highest end cards in it for $5990. Figure another 2k or so for 2 channels of DSD/DXD/384/192/etc... AD. Damn you Telarc... that review makes this look pretty attractive considering the "savings" compared to the Lavry Gold or even the Weiss.

In short no.

Dusty, I'm not complaining about it for it being audible., but it's ultrasonic noise that can cause some severe problems for certain types of amps (esp. some op-amps). It's also fairly common with DSD as well to the level that dCS talks about it on their web page.

Be careful with op-amp based amps since it appears that MSB's DACs do not have any low pass filter on the output and has lots of high frequency noise: Stereophile: MSB Platinum Link Plus D/A processor

Sounds like it but I'm not sure. Who knows.

x2

nope. I'll only by the DA not the AD. I won't even be the first: HRX playback using DAD AX24 | Computer Audiophile I'll only be using 24/96 so I'm not so concerned.

Telarc International Adds Digital Audio Denmark's AX24 Converter to Its Recording Arsenal :: :: Musicians, Engineers and Producers Recording with the Mac

I don't think there is any other data on that website because upsampling does not really effect the audible band unless it's done horribly. On the other hand the downsampling can make a big difference (eg look at SRC0.1.2 (linear)). As far as being the same as the chip function I would in general say no but I'm not sure really it depends how the chip does their upsampling. eg Wadia has a couple special schemes for theirs. I don't really know. I know that my DAC3 currently is recieving 94 but upsamples everything to 192 at (or before) the DAC.

Yeah I can see what you're saying but my guess is that is because of the aliasing into higher frequencies above 22.05 kHz which is an option that is allowed but off on the VHQ setting runs. It says specifically that allowing the aliasing (i.e that little hook up at the top of sweep plot) will improve the ringing response. I'm using it to upsample not downsample so I'm less concerned about that one since there is no data to alias.

Just for you vinyl heads: Gearslutz.com - View Single Post - Pro audio guy in Audiophile world I applogize the DAD does 32/384 just in case you need to take up more space I have asked the guy for Vintage King's price on a 2 channel DAC only version of the AX24. We shall see what it is.

If you don't like that plot switch to the distortion (1 kHz plots) or any of the others. SoX in VHQ (very high quality) hands even SRC 0.1.3 a beat down on all settings but in high quality it's not as good. I'm going to stick to linear phase for the SoX too but I will futz with the others.