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Old 29th January 2008, 11:23 PM   #1121
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Quote:
Originally posted by audionutty



Yes,
Hypex Softstart

http://hypex.nl/
Thank you
Are there any that are in the US?

Darren
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Old 30th January 2008, 12:51 AM   #1122
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Quote:
Originally posted by DarrenWadsworth


Thank you
Are there any that are in the US?

Darren

I think there are distributors of it in the US. I found DIYcable.com, they have Hypex and Exodus softstarts there. Not a recommendation for them, just googled it.
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Old 30th January 2008, 02:34 PM   #1123
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Default Re: Re: Re: DSD Output

Russ,
Will the SPDIF board work for converting I2S to SPDIF? It looks like yes from the Wolfson Datasheet.

Can you use both sets of inputs and outputs at the same time for 2 different channels or would this not be recommended for clocking reasons?

I2S->SPDIF on one
SPDIF->I2S with another signal on the other

My application is:
Home theater receiver tap I2S->convert to SPDIF->Home theater computer with digital crossovers (BruteFIR)->SPDIF convert to I2S->DAC->Volume control
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Old 30th January 2008, 02:40 PM   #1124
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Default Re: Re: Re: Re: DSD Output

Quote:
Originally posted by audionutty
Russ,
Will the SPDIF board work for converting I2S to SPDIF? It looks like yes from the Wolfson Datasheet.

Can you use both sets of inputs and outputs at the same time for 2 different channels or would this not be recommended for clocking reasons?

I2S->SPDIF on one
SPDIF->I2S with another signal on the other

My application is:
Home theater receiver tap I2S->convert to SPDIF->Home theater computer with digital crossovers (BruteFIR)->SPDIF convert to I2S->DAC->Volume control

Yes it will do exactly that. In fact I have been using it as a transmitter and receiver quite a lot.

You can use one board only as a receiver or a transmitter, not both simultaneously.

Cheers!
Russ
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Old 30th January 2008, 02:45 PM   #1125
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For tapping I2S out of the HT Receiver, you may want to embed the 8804 module in the receiver itself, with just a coax ouput on the rear panel.
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Old 30th January 2008, 02:48 PM   #1126
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Default Re: Re: Re: Re: DSD Output

Quote:
Originally posted by audionutty
Can you use both sets of inputs and outputs at the same time for 2 different channels or would this not be recommended for clocking reasons?

I am not actually sure what you mean here...
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Old 30th January 2008, 05:34 PM   #1127
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I finally did a mock up of my cd player project using a PC cd-rom drive. Finally, its taking forever. A couple of questions arose when I got it playing through the cd-rom spdif into my Parasound preamp.

I was concerned with power on/off. I connected the seperate transformer used to the cd-rom controller board. I found out that one of the buttons on the controller turns the controller on and off. It is still getting power from the transformer obviously. With this in mind, do I still need to have a main switch between the IEC socket and the 2 transformers. Or do I leave power to the Twisted Pear spdif reciever and the 2 Opus's all the time? Is there any detriment to having constant power to the DACs?

Thank you
Darren
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Old 30th January 2008, 05:52 PM   #1128
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The only "problem" would be reaching the rated lifetime of the components faster (caps, etc). My beta Opus is embedded in a Sony CD player and is always on. It's been there for about six months, no problems so far.

Click the image to open in full size.
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Old 30th January 2008, 06:22 PM   #1129
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Default Re: Re: Re: Re: Re: DSD Output

Quote:
Originally posted by Russ White



I am not actually sure what you mean here...

I think you answered my question before when you said that it cannot do input and output at the same time....Since I need to do I2S->SPDIF conversion and then later in the signal flow SPDIF->I2S conversion, I was trying to figure out if I could use the same board for double-duty and reduce the total number of boards needed.
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Old 30th January 2008, 09:31 PM   #1130
neb001 is offline neb001  United States
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Default Re: Re: Re: Re: Re: DSD Output

Quote:
Originally posted by Russ White



Yes it will do exactly that. In fact I have been using it as a transmitter and receiver quite a lot.

You can use one board only as a receiver or a transmitter, not both simultaneously.

Cheers!
Russ
That's a bit of a bummer, I was hoping I could do a loop out of the SPDIF
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