@soix Thanks for the recommendation of trying the shorter I2S/HDMI cable length - there was a subtle difference in favour of the shorter 1ft length vs the 2ft incumbent, though I guess if there’s such a thing as burn in for HDMI cables it might improve further. Incidentally the logic of shorter is better for I2S makes intuitive sense to me and may also help explain why the internal streamer of the R26 (and other high quality DAC/streamers) can sound very good indeed - the internal i2S connection will be extremely short - just the distance between the streamer and main DAC circuitboards essentially.
@peareye The HT DC III is an excellent cable - clearly the best one I’ve tried. HT >> LMR400 /> C2 >> Minicircuits 50ohm >> Pro audio 50 ohm > Hifi coax digital 75ohm.
Best performance/ price ratio is the LMR400 - which after a week’s burn in - and it really does take that long to sound good - it surpassed the C2 in terms of resolving power and dynamics, though the C2 was warmer and smoother so more forgiving. Downside of the LMR400 is it is really thick and rigid plastic tubing like a plastic hose so is cumbersome to use and can feel like it is putting a fair bit of lateral stress on BNC sockets.
@pinwa John Swenson certainly knows his stuff (it’s an interesting paper isn’t it) so all the best with that - should be a cost effective route to achieving a good standard for sine wave. Incidentally I’m a sine wave fan - worked best for me with the OCK 1 & 2 with the R26 with all the cables I’ve tried so far.
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The hdmi (i2s) cable would be 1.5 or 2 metres in length.
You should read my post above. HDMI i2S cables need to be as short as possible, and 1-1.5m is very suboptimal. Most people familiar with the connection recommend 1 foot or less. Or, you can shoot yourself in the foot and use a longer cable. I tried.
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@kereru
yes, the dh labs was for the i2s connections...I was looking at a few
things at the same time! the bnc to bnc I was looking at was a Harmonic Tech
Digital Copper III (50 ohm) cable. This would be the reclocker to the
bnc of the R26. I am thinking this cable doesn't have to be long. The
hdmi (i2s) cable would be 1.5 or 2 metres in length.
I have been very happy with Youtube Music for a few months now and
don't feel any urge to change that. I actually tried Tidal last year and gave
it up in less than a month.
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@peareye Given your clarification that you predominantly listen to YT off your MacBook I agree that a USB based connection is what you'll need to use so considering DDCs to help optimise it makes sense.
Reason being, as notwithstanding my preference for the sonics of the R26 LAN input/renderer, the R26 doesn't support any LAN streaming protocol I'm aware of that'd support YT audio. Happy to be corrected here if there's a workaround way to pipe it via UPnP but doubt it'd be easy or ideal if there's video lipsync considerations.
I also listen to and watch a bit of YT, in my case via my TV, using its optical out. I feed this to an Ifi s/pdif iPurifier 2 reclocker (a DDC) then into the R26 coax digital input. This sounds much better than going direct into the R26 optical input which doesn't do any reclocking of the jittery signal from the TV (so is thin and glare-y) and slightly better than going USB direct from my Mac Mini into my U18 DDC but not as good as the LAN for equivalent non-YT music.
That said having recently experienced a substantial improvement from inserting the Holo Audio Titanis USB regenerator/ galvanic isolator in between the Mac and the U18 I reckon that would likely now better the TV/Ifi chain for YT content. I must try it.
Re clock cables the one you referred to looks to be an HDMI cable which could be used to carry i2S signal from a DDC to the R26, but for the external clock connections (ideally to both DDC and R26 so they're synchronized) you need a BNC-BNC terminated 50 ohm coaxial cable like the Gustard C2 or LMR400.
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After doing some further exploring, I am strongly leaning to
a good DDC to an LHY OCK-2 and a DH Labs Silver Sonic 2.1
cable to connect the clock to the Gustard R26.
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@pinwa Awesome - welcome to the club! Your observations of the character of differences are consistent with mine and other users of master clocks. I find that far from being fatiguing it is less so as notes are more accurately (and naturally) rendered, losing some artificially etched edges and glare.
What brand / model cables are you using?
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I just got the LHY OCK-2 yesterday. I am using it with the R26 with the Sine wave output and 50 ohm cable and with the EtherREGEN with the Square wave output and a 75 ohm cable. It is still early but I am blown away by what a significant difference the OCK-2 is making. There are greater dynamics as well as a sense of air and separation and better placement in the soundstage. The top end is also more pronounced and detailed. Obviously, I am still in the honeymoon period and perhaps I'll find the greater level of detail fatiguing but right now I am loving it.
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I've read conflicting things re optimal cable length for digital cables, though expect it depends very much on the application. The main variable I've found for clock cables at least of which I've tried five is cable quality (conductor, shielding and termination quality) rather than length per se.
@kereru Clock or other digital cables are not the same as HDMI cables for i2S as per my last post. For example, a digital interconnect is best at 1.5m, whereas that would kill an i2S signal. The i2S signal is a different animal entirely and extremely sensitive to cable length. Try the 1 foot cable and see what you think, or try the 6” cable I linked above for only $5.50. Interested in your thoughts.
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@kereru
I am waiting for a reply from LHY as to which OCK would suit my system better. I sent in my list of equipment in my system as they requested to determine which clock (in their opinion) they would recommend.
I am new to this part of digital and am asking what part does the switch play in the signal path. I really do prefer to use YouTube off the MacBook Pro as I like going down the rabbit hole to look for new music including a lot of covers by various unknowns.
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@soix - I bought two BJC Belden FEs - a 1ft and a 2ft, TBH have only been using the 2ft one for convenience as the 1ft would be a pain. That said I'll have to give the 1ft one a go.
I've read conflicting things re optimal cable length for digital cables, though expect it depends very much on the application. The main variable I've found for clock cables at least of which I've tried five is cable quality (conductor, shielding and termination quality) rather than length per se.
I should clarify the sound via U18 via I2S gives a very good sound too, it's just that the internal renderer is even better - the differences are probably very subtle to a casual listener. They both sound great, but to me the LAN is satisfyingly better.
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@kereru How long is the Belden cable? I’m using a cheap Monoprice HDMI cable that is only 6” in length and getting surprisingly great sound. As you undoubtedly know, cable length is critical for i2S as it was designed as an internal connection inside pro audio components so the signal degrades quickly with cable length and most people who know more than I recommend 1 foot or less, which is why I went with a 6” cable and maybe a big reason why I’m experiencing such great sound. I’ve also heard some people say they don’t notice much difference upgrading to a more expensive HDMI cable, which is why I’m like you and in no hurry to upgrade my current cable. If you’ve been using a longer cable and might like to try what I’m using it only costs $5.50 so what the heck?
https://www.monoprice.com/product?p_id=13578
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@soix Yes i2S - a Blue Jeans Cables FE cable which although very well regarded up to say the $200 range I is likely a limiting factor vs say a Tubulus Argentus, which would cost as much again as a DDC which I’m not in a hurry to do. USB cable is an also highly rated if a bit more boutique but well priced Gothic Audio Semperfi Outsider pure silver.
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@kereru Are you using the i2S output from the DDC?
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@peareye I've had the R26, the Ock-1, Zen Stream, U18 & SU6 for 6 months, and more recently got the Ock-2 and LHY SW-8 switch.
The Ock-2 is a clear step up over the Ock-1, in resolution and refinement, though the Ock-1 is warmer, smoother and perhaps more forgiving of average sources as a result. Still, the OCK-2 is the new incumbent.
My DDCs and Zen have been collecting dust for a while now TBC, I much prefer Roon/HQP via the R26's internal renderer... particularly since I've progressively improved my upstream network path. I do dust the DDCs off every now and then to recheck with new USB or power cables for eg, but there's no question in my system the internal streamer remains so much more musically engaging - more dynamic, weighty and resolving with a broader, deeper and taller soundstage and a calmer background.
So for the R26 rather than DDCs I'd recommend an OCK-2 and a good switch like the LHY or Fibre Media convertors.
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Or stick to USB line conditioner with reclocker.
1. innous phoenix USB reclocker
2. iFi iPurifier3 + iFi iDefender 5v power
3. SOTM USB RECLOCK
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I have an Audio GD DI-20HE DDC. Highly recommend.
Will also try a Leo Bodnar clock in a month or two.
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phastm3
thanks, I just actually figured this out...moving on with my search.
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The Leo bodnar is a clock….not a ddc. It doesn’t have any audio inputs or outputs….it has a coax antenna input and 2 bnc clock outputs
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I am looking at the Leo Bodnar...modest price is good. I don't see
any i2s connection. also, I have a MacBook Pro and all I can see in their
illustrations are guides for Windows. Otherwise, I wouldn't mind trying
one of these.
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I know some who have let their DDC go and use the Leo Bodnar clock straight into their Gustard R26 or A26 to good effect.
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@peareye
The ock1 was ineffective with my Audio GD DI-20he
Have heard good things about the Leo Bodnar reference.
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Looks there are all sold out on Amazon for the time being.
I will explore it in the meantime. Thanks for the tip.
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