Do I still need a DDC in between?


This is my current rig:

Wiim Ultra (DH Labs Mirage / Cardas Clear USB, 0.5m) → Gustard U18 (DH Labs HDMI 2.1, 0.5m) → Harmony μDAC (Mogami quad XLR) → Parasound A23 (Belden 5T00UP) → Wharfedale Linton

The sound is very good to my ears—excellent tonality, detail, and especially soundstage, with impressive height and depth. However, I’m considering trying the Volumio Rivo Plus released recently, which offers an I²S-over-HDMI connection.

My question is: would I still need the DDC (i.e., Gustard U18) in between, or would a direct I²S connection from the Rivo+ to the Harmony μDAC deliver comparable or even better sound quality? Have you had any direct or similar experience with this kind of setup? Any advice would be appreciated.

lanx0003

Showing 6 responses by mattw73

@lanx0003 well I think both cables are properly shielded..I guess the solid core didn't make a difference. In my case the Lanshack was shorter than the Ugreen. But any benefits I perceived between the 2 could very well be mind games. At least none of these cables are expensive. And yes, you lose some flexibility with solid core conductor cable. 

As you know going to Cat6 is not really a downgrade. Cat8 is well beyond what is needed. I went that route with the Lanshack as it seemed like it's the best (overkill) LAN cable they offered. It does lack the gold though. Oh yeah, the one you posted is the exact one I went with. 

@lanx0003 I agree that there is a lot of contradictory information out there on various topics. Im a little ignorant when it comes to digital/streaming so misinformation in that arena can really set me back lol. 

Side Note- I ordered a Laiv uDac today. Still have my Pontus 15th but I've been wanting to get a feel of a different R2R..I wanted to try the micro dac. Especially after you personally preferred it over your D90 III. 

@lanx0003 I would say that my expectations aren't too high..as I don't know for certain what to expect. I'm thinking maybe a slight loss of inner detail & slightly added distortion/warmth with the Laiv. I just don't know..but I would be ok with that outcome. There are a lot of very positive user reviews on the uDac. Where it just seems to hit the right "musical" spot. 

15th is a great dac. I have a feeling that the Laiv is too. I will say that customer service or correspondence is better thru Laiv. More engaging & he seems to take a real interest in the customer. I appreciate that & it means something to me. 

@lanx0003 well it took awhile for the uDac to get here so I've only had it in system for 19 to 20 days now. Last Sunday or Monday was the 1st time I noticed the dac adding some harmonic weight to notes..drums falling further back into the stage..some better separation of instruments in space. I was already somewhat happy with it & at the moment I know I'm keeping it. I really like the size & found a preamp that has been a whole lot of fun with the uDac. The Laiv isn't on the level of my Pontus 15th but I was never expecting that. I really had no expectations of the Laiv & I haven't been overly critical about it. I do love its small size. 

I have quite a few preamps but I bought a Schitt Freya Noval off the 2nd hand market. Bunch of people been raving about the Freya Plus for years & I just assumed it's a mediocre product..for whatever reason. I grabbed the Noval because of the enormous amounts of different tubes one can roll...& because I already own a bunch. When I first tried it it was ok. Lacked some resolution & wow factor but good stage & space between the speakers. After listening to it for a couple hours I busted into it & replaced some capacitors & upgraded the output caps. Not even my best caps but you need 4 of them due to the preamps balanced nature & I don't usually buy caps in quantities of 4. But I had four mundorf aluminum oils in a much bigger value than what was in the Freya. They were intended for 2 other projects but I had them on hand...it was destiny. I squeezed some 5.6uF in there & felt that should really help with its low output impedance & slightly rolled off bass. It made a huge difference. No "giant killer" but with the uDac I have had so much fun listening to music the last couple days. 

Soundstage has depth, dark space, & brought a different level of disappearance to the speakers. Dynamics that will make me flinch with certain tracks. Male vocals can get real chesty. I'm having fun listening to certain genres. And then the tubes used can add & subtract certain perceptions & sound emphasis. I'm pretty giddy about this unsuspecting Noval & uDac pairing. I'm only second guessing the output caps I used & probably could have improved it more had I been patient & spent some money. But for the price of these 2 pieces & the enjoyment im getting is pretty cool. 

I do have a question for you. How long til your uDac hit its sweet spot? 

And yeah, I've been eyeing the Rivo Plus since it came out. Heck I wanted the original Rivo. I was curious about the software though. We now have a U.S. Rivo dealer pretty close to me in Orlando. Hifi Boutique I think is the name of their store. They are known for doing trade-ins so if I go that route that could be helpful. 

We just switched to fiber internet & I don't have hard wire LAN near my streamers now. Switching to WiFi & my IFI NEO & ZEN stream both have issues. I'm either going to need to get hard wired again or find a brand that works well on WIFI. The NEO stream i2s output to the uDac was pretty good..bass wasn't the greatest though.  I don't know if it was the uDac or the streamer though. I was kept telling myself the uDac hadn't settled yet. 

@lanx0003 when I went to the last audio show in Florida the DH Labs guys were there. I literally had the Mirage USB in hand to purchase & we started talking cables & equipment. He ended up telling me if I was only going to buy one cable he recommended his Ethernet cable. Saying it would give me the better result over switching my USB cable. 

Unfortunately for him I ended up not buying either cable because I wasn't exactly sure what exact length I needed in Ethernet form. I still haven't committed to buying the best I can afford as I know my current streaming set up will be moving. But I did go to LanShack & get custom length 23awg solid copper conductor Cat8 for now. Individual twisted pair shielding with outer braid shielding as well. An improvement over my basic cable & didn't cost much. Connectors are not as nice as the DH Labs Reunion cable. 

@lanx0003 I was using a Ugreen before the LanShack. Hopefully you will perceive the improvement I did. Ugreen actually makes quite a few extremely cheap cables that are properly shielded & good in my opinion. If you go into their Amazon home page/store & go into their categories you will see a wide assortment of video/audio products. Dirt cheap. A couple years ago they use to carry these little usb-c to 3.5mm dongle dacs. Get a 2-pack for like $16 bucks & I swear they were so good lol.