Didn't catch this. Sorry if it has been explained before.
I connect to the dam1021 with serial cable. writes +++ and enters umanager.
Isn't that the procedure?
"set volume = xx" etc?
You don't need to enter umanager to set volume. i.e. no need to enter "+++"
When you first connect to the DAC you should have some info on sample rate and volume setting already.
If you're asking if the parts are supposed to come unassembled then, yes. Soren gave us the option on what parts we wanted to use (e.g. some of us aren't using the xlr outputs from the board)
Thank you for replying ristar. Yes I understand and appreciate this. But I was not clear, what I meant was the plastic zip bag and the fact all the parts rattling around on the board.
Both my boards were in a bubblewrap packet and the parts were in a ziplock bag. All packed into a roomy box. Not sure if they changed the packaging since early days, though.
Does that mean we don’t have to be concerned with ESD while working on this board?
I’d received two cards bobble wrapped and in individual plastic bags with all the connectors rattling inside each bag with the DAC. The shipping box rattled like a baby toys and was sure it was broken before opening it. If they insist packing it like this I’d be surprised if not some poor sod in the end have to waste hours fighting strange faults that easily could be avoided.
I’d received two cards bobble wrapped and in individual plastic bags with all the connectors rattling inside each bag with the DAC. The shipping box rattled like a baby toys and was sure it was broken before opening it. If they insist packing it like this I’d be surprised if not some poor sod in the end have to waste hours fighting strange faults that easily could be avoided.
About the only good thing about living in the tropics is that our RH is above 80% and ESD is not something that I've ever had to take extreme care about.
What I can share though is the board is of very high quality (one of my boards has undergone a fair bit of treatment from the hot gun and soldering gun... removing and adding regulators and caps) and there is no peeling etc - looks new. That's all I can share, really.
Hopefully there is nothing wrong with your boards.
What I can share though is the board is of very high quality (one of my boards has undergone a fair bit of treatment from the hot gun and soldering gun... removing and adding regulators and caps) and there is no peeling etc - looks new. That's all I can share, really.
Hopefully there is nothing wrong with your boards.
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I had a good impression from the packing. I rceived mine in a card box with that much bubble warp that nothing "ratteled". I am quite sure to remember the loose parts were in a seperate plastic bag, I am not sure anymore if it was ESD save packed or not ... it is quite a while that I received mine.
No, my DAM1021 was separately packaged in a pink ESD safe bubble wrap bag and the connectors in another plain plastic bag.
Like it should be.
I got my loose part (xlr's and sockets) in a separate plastic bag, and everything inside a cardboard box with bubblewrap. Seems strange that you recieved yours in same bag.
For my education, the transformers are used for impedence matching? Step Up/Down? I/V?
I can understand the rarity of a no longer made transformers, but in what way were these configured?
Thanks, in advance.
In a way, yes, but as I see it there is benefit from isolation to start with and then the step up/down to match the final line level going into the Amps. Impedance matching more for power transfer considerations but we are mainly looking at signal voltages here. And the benefit of balanced output option with transformers. My two cents ...
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Hello LC, the output diagram is here: http://www.diyaudio.com/forums/vend...-magnitude-24-bit-384-khz-51.html#post4218120
Any wisdom you can share (mod).
I think it is pretty drastic removing the opamps. They work fine driving high impedance headphones. I am thinking of improving the local bypass of the opamps with some 100uF oscons...
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That's not how we ship them, they all ship in ESD safe bubblewrap with connectors in separate bags and safely packed.... But Norway is not EU, sure they have not been opened by customs ?
I'm sure the extra item was separated from the actual board in my shipment. I dont think it's a good idea to mix them all in one bag. That should be changed.
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The reason I removed opamps power line etc completely is to reduce the battery load.
Raw output helps quite a lot in sound quality really!
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Kohjin