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Post by misterc on Mar 16, 2023 20:16:08 GMT
Due to popular demand, I'm back touring this area for another few years (lol) so this should help you chaps in setting up your Mutec's to achieve optimum peformance and simply illustrate which connections to use and how it relates on the front panel lights.
Its not an absolute BUT it will enable you view for yourself if you are getting the correct traffic light sequence 
Pleasae bear in mind that the first column on the right shows the sample rate and is showing 48Khz this is simply because the audio analyser was supplying the digital audio test signal, it can read up to 192Khz in this mode.
If using a word clock output mode it can read up to 768Khz
These two inputs can confuse people so Yellow Arrow 10Mhz input, Red Arrow SPDIF_BNC INPUT
AES XLR Input & 10Mhz refence clock input
USB Input & 10Mhz reference input
ALL digital audio outputs which can be used at the same time
All Word Clock Outputs again all can be used at the same time
Now how the front panel indicitors should look locking onto & playing music
AES Input NO 10Mhz clock
AES Input WITH 10MHz Clock
SPDIF_BNC INPUT NO CLOCK
SPDIF_BNC INPUT WITH Clock
USB INPUT NO CLOCK
USB Input with 10Mhz Clock
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Post by firebottle on Mar 16, 2023 20:41:28 GMT
Sorry Tony haven't you got the SPDIF no clock showing 10MHz input?
**ADMIN:
YUP, good spot Alan. I have edited. ✅
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,063
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Post by Bigman80 on Mar 16, 2023 22:49:43 GMT
Brilliant!
Thanks Tony.
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Post by stevew on Mar 17, 2023 9:30:27 GMT
Great work Tony, thank you so much.
A couple of times now I’ve been experimenting with other inputs and lost my settings. This will be invaluable and I’ve saved it on my favourites list.
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Post by misterc on Mar 17, 2023 11:27:04 GMT
Morning Chaps
Apologues for the over sight I have readdressed this with an updated post and included the missing iamge now.
Also I felt this maybe helpful for a few of you, below is the image of the 10Mhz word clock input for just the word clock distribtuon mode handy to see if your Mutec is recieving a 10Mhz clock
MC3+USB in Word clock distribution mode only
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Post by brucew268 on Apr 12, 2023 14:56:50 GMT
I was able to snag a pre-owned MC-3+ USB on Ebay and get the lights and controls to operate after doing a factory reset. But when I set it up for USB in and SPDIF/BNC out, the blue <Lock Main Ref> light blinks rather than illuminating steadily... and no sound comes out. I can't find anything in the manual about a blinking <Lock Main Ref> light.
If I bypass the MC-3 either PC>DAC or CDT>DAC, it's still working fine. Any ideas?
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Post by misterc on Apr 12, 2023 16:28:08 GMT
Blinking blue light indicates to me a nonstable signal, you have got the pc set to PCM and not bit stream?
Does this also apply if you use an spdif or aes /light pipe in from the CD transport?
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Bigman80
Grandmaster
AA Founding Member & Bigbottle Audio Creator
Posts: 16,063
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Post by Bigman80 on Apr 12, 2023 16:47:48 GMT
I was able to snag a pre-owned MC-3+ USB on Ebay and get the lights and controls to operate after doing a factory reset. But when I set it up for USB in and SPDIF/BNC out, the blue <Lock Main Ref> light blinks rather than illuminating steadily... and no sound comes out. I can't find anything in the manual about a blinking <Lock Main Ref> light. If I bypass the MC-3 either PC>DAC or CDT>DAC, it's still working fine. Any ideas? Try a different USB?...sounds obvious but I tried three when I had the USB card in. Only one made connection. |
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Post by misterc on Apr 12, 2023 16:54:21 GMT
The fact the CD<>Dac works via non usb, would indicate imho a fault with the mutec
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Post by brucew268 on Apr 12, 2023 17:41:49 GMT
Blinking blue light indicates to me a nonstable signal, you have got the pc set to PCM and not bit stream? Does this also apply if you use an spdif or aes /light pipe in from the CD transport? The player says PCM 16/44 > PCM 16/44 and does not seem to have a "stream from local file" option, so seems to be PCM.
When I use SPDIF In (bottom BNC) from the CD transport, the Lock light doesn't come on and no sound. (mode= Intern & Re-Clk. Top 3 Reference lights are on. Clock multipliers = top row only. Nothing in Status bank.) The fact the CD<>Dac works via non usb, would indicate imho a fault with the mutec Emm.  |
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Post by misterc on Apr 12, 2023 18:01:05 GMT
If you go back to the CD transport you need to use the AES3 BNC input on the back of the Mutec and the normal looking RCA is the oputput to the dac see set up below BNC (SPDIF) input is the yellow arrow
The use this set up on the Front panel for the spdif (BNC) settings
That should produce a lock and sound, if the light (blue) is flashing then the Mutec is accepting / receiving a lock signal.
If this is the case send it to me and I will check it out for you Bruce.
Is this a black version BTW, I do know of one kicking about that isn't shall we say 100%
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Post by brucew268 on Apr 12, 2023 19:42:07 GMT
So... When I set the Reference to SPDIF/BNC and input is the Red Arrow above, I get the blinking blue <Lock Main Ref> and red <Audio> LED... but still no sound. Plugging input to the yellow arrow gets no Status lights or sound, and I think the you meant to specify BNC input as the red arrow as the back panel labels seem to indicate.
Yes, I'll msg you about sending to have it checked out.
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