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Old 27th October 2011, 08:01 PM   #1
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Default DacMagic II failure

Hello everybody!

I was testing my new BluRay unit using for audio signal one of the BNC connections (by a S/PDIF adaptor) and suddenly the sound disappeared.

After several tryouts it is clear than position "CD" from selector does not work. Maybe it is something very stupid but, being in the situation of opening the machine, why do not update it a little?

Does anyone can provide me a link to the service manual of Dacmagic II ?

I've tryed to reach it from the web but the only result I've found is a very poor image lo-res from this link from Eservice

On an old thread it was a link to the service manual but it does not work

Old Thread

Many thanks in advance


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Old 27th October 2011, 11:34 PM   #2
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Is this the one?
The OpAmps NE5532 would be the first ones to go... even the Op275 ones can get inprovements.

Last edited by SoNic_real_one; 27th October 2011 at 11:56 PM.
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Old 28th October 2011, 06:12 AM   #3
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Oh... That one is too new for me.

My machine is just the previous one, DacMagic II MkII

Mine is something like this one

Anyway, many thanks SoNic_real_one
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Old 29th October 2011, 01:32 AM   #4
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Ah, that goes to 48kHz samplerate only.
Just look inside, the switching circuit in front of the SPDIF receiver should be similar...
Eventually look on the input/DAC section of Azur 740C, I did read that is similar with yours.

Last edited by SoNic_real_one; 29th October 2011 at 01:43 AM.
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Old 31st October 2011, 09:08 PM   #5
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I'm afraid both DacMagic's they only share the brand "Cambridge Audio" and about the Azur, sorry I do not see the equalness.

Hope someone can help me with the Service Manual.

Many thanks, of course to SoNic_real_one. You are really trying to help me !!
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Old 1st November 2011, 04:13 AM   #6
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Default How does the Krell SPB-32X compare with current DACs?

I am considering replacing my 10 year old Krell SPB-32X with a current budget DAC (Cambridge DAC Magic) in order to decode 96/24 tracks...

I can sell the Krell for about the cost of a current budget DAC - but the fact that the Krell still sounds great make me wonder if I should keep it, considering that it originally cost $3,500. and is built like the proverbial ton of bricks...

So my question is will there be a major noticeable improvement in the sound after exchanging it for a current DAC? Or am I comparing Apples and oranges?

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Old 14th November 2011, 04:34 PM   #7
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Quote:
Originally Posted by Vogelius View Post
I am considering replacing my 10 year old Krell SPB-32X with a current budget DAC (Cambridge DAC Magic) in order to decode 96/24 tracks...

I can sell the Krell for about the cost of a current budget DAC - but the fact that the Krell still sounds great make me wonder if I should keep it, considering that it originally cost $3,500. and is built like the proverbial ton of bricks...

So my question is will there be a major noticeable improvement in the sound after exchanging it for a current DAC? Or am I comparing Apples and oranges?

I know, that the internal DAC of the Krell "CD-DSP" (also for using of external digital sources) sounds much more better than the second DAC from Cambridge Audio, the DAC3 (AD712 OP-AMP in the output), but even better against the better sounded first DAC, the model "DACMAGIC" (OPA2604 in the output).
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Old 20th November 2011, 12:52 PM   #8
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Hello to all involved on this threat

I've found this old post Cambridge audio Dac 3 schematic needed

I've read it and that's my problem!! My DacMagic 3 has dead BNC connections and only Optical working... After switching my DVD Player to a brand new Blu-Ray player and using frequencies higher than 48Khz (me, as an idiot, do select 96 Khz and even 192 khz). And to be sure where was the problem, I did try both BNC inputs...

This morning I was starting to accuse the BR player

Well, let's locate the 8-Pin DIP 9637 and replace it.

Have a nice Sunday morning!!
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