Dutch & Dutch 8Cs

[Emlin]

Finally got my 8C setup.
Felt like I can quit all audiophile forum now.

No! Stay, and rub their noses in it!

 

[frangle]

Is anyone using the digital input (AES) and getting clicks / pops when starting and stopping playback and seeking?

This seems to be a well known issue for many DACs where the input stream is stopped (rather than continuing at zero value). There is also a lot of discussion around this happening when switching bit rates and formats (PCM/DSD).

I consistently get a small "click" on starting playback and about 5 seconds after stopping / pausing. This is without switching bit rates / formats etc and is at a fixed output level (doesn't vary with input level). If I set up a playlist, there is no click between tracks.

I'm on the latest D&D firmware (1.4.57) and playing using MPD fixed at 24bits / 48kHz.

If this is the DAC switch on/off issue, it is a bug in the DAC in the speaker, though in theory the easiest solution might be to find a player that keeps the output stream alive.

Any thoughts?

 

[JustJones]

I use an AES3 splitter going from a minidsp SHD Studio to the AES3 input on both 8c's and I have never had any issue with a clicking.

 

[JustJones]

In my case using Dirac in the SHD instead of REW gave me a better result as far as how it sounds to me. I followed Dutch and Dutch recommended approach on their website. The REW results were good and it only added a few filters but for some reason Dirac sounds better perhaps because Dirac is idiot proof. I don't use them for movies and was thinking of adding subwoofers but according to Dirac in my room they go from 22hz to 23khz now not sure I'll bother though I'm sure subs would add more. SPL in the bass.

 

[frangle]

I use an AES3 splitter going from a minidsp SHD Studio to the AES3 input on both 8c's and I have never had any issue with a clicking.

Why a splitter? AES daisy-chains through the speakers.

 

[JustJones]

Looks mostly. It wasn't that much more than the cables to daisy chain. I got the 6 foot ones.
https://www.markertek.com/product/s...ance-matching-aes-ebu-y-splitter-cable-6-foot

 

[doorofnight]

How do you people connect the DD8c's to a source with SPDIF coax? Currently I use 2 x analog out to XLR into the speakers.. But I think this can be done better by using a SPDIF coax out on my preamp.

OR what do you use as a pre-amp/streamer?

 

[JustJones]

I use a raspberry pi4 as a roon bridge connected to a Matrix X-SPDIF2. It takes USB in and Has AES3 Digital out. To use SPDIF out you would need an impedance transformer to change the 75 Ohm to 110 Ohm.

 

[doorofnight]

Thank you for your reply. Is it for sure that you always need this impedance transformer? Which one do you use? I have found one till now: the Hosa CDL 313.

PS I see: the matrix. Thx

 

[Purité Audio]

https://www.dv247.com/en_GB/GBP/Neu...K/kelkoo&ProgramUUID=MrLAqJarZEUAAAFobL.P7Dz7
Keith

 

[JustJones]

https://prostudioconnection.com/pro...1Me5SgoijXSXr58K7aSnXGkvyjv9QWHsaAuYzEALw_wcB

You would need a BNC to RCA coax cable.

https://www.bhphotovideo.com/c/buy/BNC-to-RCA-Cables-Composite-Component/ci/4166/N/4028759274

 

[doorofnight]

Great. I didn't know that. And to be sure.. such a RCA coax cable works with a (digital) RCA coaxial SPDIF output? I know absolutely nothing about cables. As long as the RCA is coaxial it will work?

And the Converter works in both directions? I read: Converts 110 Ohm AES/EBU to 0.5V 75 Ohm S/PDIF Levels, but does it also convert 75 to 110 Ohm?

 

[JustJones]

Great. I didn't know that. And to be sure.. such a RCA coax cable works with a (digital) RCA coaxial SPDIF output? I know absolutely nothing about cables. As long as the RCA is coaxial it will work?

And the Converter works in both directions? I read: Converts 110 Ohm AES/EBU to 0.5V 75 Ohm S/PDIF Levels, but does it also convert 75 to 110 Ohm?

Yes it works both ways.

 

[Pearljam5000]

How do they compare to Genelec 8351/8361?

 

[doorofnight]

I have connected my DD8c to a SPDIF coax XLR output using a neutrik convertor and the AES3 protocol.

In the first 15 minutes the left channel faltered. Then this problem dissapeared. I listened to some songs. Then I had a short break without music.. After this I pressed play for a new song, but no sound. I restarted my amp and the sound was back again. Then the right LS went silent. Restart. Then everything was OK and then in the middle of a song the speakers fell silent. And this happened again in the next hour. I am using relatively long XLR cables (10 meters en 7 meters). Is it possible that these errors occure due to long XLR cables, or is something else wrong?

And most important question: Am I not slowly killing my preamp or speakers because of this fawlty connection?

 

[Pearljam5000]

maybe Try a shorter cable

 

[doorofnight]

I think I will do that. It feels like such a waste of recources buying all these cables.

 

[Pearljam5000]

It's definitely frustrating with such expensive speakers.

 

[Pearljam5000]

Impressive

 

[fredoamigo]

I do not understand the interest of this gas plant?

What is the amp on top of it for ?