2. pc-audio
  3. 1264475879

Opus 21 CD vs Mac Mini... Opus wins

Resolution Audio Opus 21 with Great Northern reference upgrade beats Mac Mini (CDs ripped into AIFF files. Exported via firewire into M-Audio Firewire Solo into Opus 21 DAC with SPDIF cable.)
Am I missing something or am I just a victim of the PC audio hype? The Opus 21 is better... soundstage, articulation, rhythm, drive, clarity.
Is it the digital cabling? A.C. issue for the Mac? From what I've been reading the computer should be at least the equal of the CD player. Thoughts?
bwyoung
bwyoung OP
143 posts
 
Very interesting. The comment that I have introduced three links in the chain is true and may be a contributing factor to degrading the sound (M-Audio unit, Digital SPDIF cable - Canare Digiflex Gold, and the 'out of the box' Firewire cable). Three out of six comments so far seem to indicate that the problem is not the computer storage itself, but what is downstream in the chain. Thank you for your contributions.
tobias
1,534 posts
 
Bwyoung, hi. I'm not aware of any premium FireWire cables but they are sure to be around somewhere. S/PDIF cables abound of course, and I've tried several, from Canare Digiflex (your current cable and a terrific value) up in order of price through Apogee Wyde Eye to VH Audio cryo Pulsar, Zu Ash, Wireworld Gold Starlight and the Atlas Opus I own now.

I've found that the S/PDIF cable's quality makes a big difference but even more important is cable length. In my setup a 1.5m length of Apogee Wyde Rye beat a 1m length of it for coherence and clarity. Others have found the same, including UHF Magazine and its Audiophile Store.

The M-Audio FireWire-to-S/PDIF converter is another key element. I don't know yours but I use a M-Audio Audiophile USB from time to time, to change USB to S/PDIF. It is dated now and a 60-dollar Valab converter box from eBay does the job better, especially in the highs.

Just as a rule of thumb, I would have thought a fair budget for the outboard gear, when you compared, would be the price of the CD player minus the price of its DAC (which you are of course using in the comparison). Hard to put a dollar value on just part of the unit, of course.
heymikey
80 posts
 
OMO, either upgrade your firewire to spdif converter, or look into a good usb to spdif converter (Empirical Audio Offramp 3). Make sure you have a good spdif cable (and usb cable if you decide to go that route). Cables do make a difference. I use a mac mini and send firewire out to my firewire dac (Weiss Dac2) and it sounds excellent.
bwyoung OP
143 posts
 
Heymikey, or others, any suggestions on upgrading firewire? I looked at a couple of well known audio cable manufacturers and they don't seem to offer upgraded firewire cables.
devilboy
1,176 posts
 
My friend got the MSB mod done to his ipod (his ipod mind you), and ran the digital directly into his MSB DAC and it was probably the best digital audio I've ever heard. Sure, a $14,000 DAC helped but still. It smoked any stand-alone CDP I've ever heard. Who wants to change cds anymore anyway? As soon as my Minerva comes in, I will run my Mac Mini (AIFF) into the Minerva via firewire. Mmmmm.
More to discover