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One of my R2R dream machines, been looking for one for ages, to do redbook with.
Yes they do have PCM1704K d to a chips (selected) and a HDCD input filtering chip, this is about as good as old school R2R Multibit gets, most new today are discrete R2R because the PCM1704 is no longer made because of it huge manufacturing cost and was the last of the best R2R’s chips made.
And forget the preamp, you really should try the No.39 direct to poweramp as it has an output stage most active preamps couldn’t match, should sound far more transparent. Here’s how to do it.
I like the 39 so much I want to get a 360S.
Then that’s settled the 39’s mine, your a good bloke Marty.
Made a mistake above the, 39 only has the PCM1702 dac chips, not the later PCM1704
The only problem with owning the 39 is the laser Philips CDM12 Industrial, original Philips almost unobtainium new even used $$$
George- went direct today. ML39 to Rowland Model 1. It was interesting. On one level the transparency was amazing. But maybe too much so for me. I’ll have to listen some more. But since I stillI play vinyl it’s kind of a hassle to rewire.
But the most impressive thing was changing the Levinson to Rowland chain to XLR. I know the manufacturers recommend that but since I was running RCA, I thought oh well. Maybe down the road.
Then I reminded myself (I have a project studio) that I have tons of XLR cables. So I threw Mogami gold cables in... Wow is an understatement. Not only did they sound better than my Nordost Frey or Organic (by Argento) the imaging snapped more into focus and there was quite a bit more detail. All for less than 200 bucks.
ill probably try some expensive XLR but let me tell you, I don’t need to look elsewhere.
But maybe too much so for me. I’ll have to listen some more.
I think you may change after a few days/weeks of listening, I’ll say this though, the best recordings now will blow you away, but the bad ones may irritate more because they’re not being softened anymore.
To me this means your getting everything, warts and all, no punches pulled.
Also I’ll leave this thought with you.
As for XLR hookup. The 39’s PCM1702 dac chips are pure single ended. By using the xlr output you are using another opamp in the signal path that pseudo changes se output into xlr. I think the purer sound should come from the 39’s se outputs, not the xlr’s.
I read that both the 39 and Model 1 have a true balanced signal pathImpossible for the 39, look at page 3 pin 11/14 it the only current output, and it’s single ended for one channel to the I/V opamp. Anything after that is going to be "pseudo xlr" made up by another opamp to create it. I would rather no have that in the signal path, so the single ended output should be better.
The M1 Bricasti yes, it's the other way around as it's dac chip has + and - outputs so it's balanced. Trouble is it's Delta Sigma conversion which I feel is not as good as R2R Mulitbit like the 39 for converting PCM Redbook 16/44 and 24/96.
Hey George. You are too far in the tech weeds for me to keep up. I don’t doubt the technical aspects of what you’re saying. I’m just reporting what I’ve heard.
But I like coming along for the tech deep dive. Know anything about the Sonic Frontiers SF-D2? I have a mk.1 and mk.2. Both busted. I’ve heard the chips are near unobtainium.
I have a mk.1 and mk.2. Both busted. I’ve heard the chips are near unobtainium.Yep, if it's been confirmed those Ultra Analog d to a converters have bit the dust, then I'm afraid you have what used to be very nice expensive dacs, that have now progressed to be very nice expensive door stops. RIP
I thought Parts Connexion had parts to repair their dacs.Yes but they didn't make this part, which I believe is now extinct and the company long gone..
I can’t see them replenishing their stock of the Ultra Analog D20400 dac chip modules, as Ultra Analog Inc. hasn’t existed now for over 20 years.
A couple of days ago I wanted to compare digital cables from my ML 39 (as transport) to the Bricasti. First up, the Crystal Clear Audio XLR (don’t know which model but about $500 10 years ago. Great cable.
Next was an old Tara Labs RSC Master Gen. 2. Ok. B-.
Nordost Silver Shadow. Good but not nearly as good as the Crystal Clear.
Then I remembered I had a Signal Cable RCA Silver Res. For laughs, I tried. Best of the bunch. 10 times less than the other cables.
Ain’t audio fun!
P. S. I’ve had a Nordost Valhalla in before. It was nice but not $2,000 nice.
his is also a great one that’s cheap the way I bought it, QED Silver 75ohm digital, purple in colour and it can be bought off the roll so you put your own rca’s on.