The A20s are surely not the problem, unless you are running the trafos without series resistors between them and the dac chip, and grounding the primary center tap. If you are using the upsampling board you can remove it and put the 4 jumpers in. If it works now then the upsampler board is dead, which has happened to a few people.
If it still doesn't work then you will need a scope to check the I2S lines from the 8416 to the 4398 chip.
You can run the output to an amp with ground off the board and one output (plus or minus) through a cap, but not directly. There is 2.5VDC on the output legs of the dac chip.
Good luck!
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Bill when you write about removing the upsampling board and put the 4 jumpers in what do you mean, I think I have the board with the daughter card that you just remove if you dont want upsampling.
hi guys
i am interested with this dac.
however there is 2 version. which one should i take?
1. CS8416 Digital receiver +Up-bit modular CS8421 + PCM1798 DAC
New 24/192 DAC DA CONVERTER CS8416+CS8421+PCM1798 USB - eBay (item 160518883450 end time Jan-11-11 23:34:13 PST)
or
2. DIR-9001 Digital receiver + Up-bit modular CS8421 + CS4398 DAC
Gigawork DIR-9001 24/192 Up-sampling DAC DA CONVERTER - eBay (item 160510993000 end time Dec-24-10 23:38:54 PST)
whats the pro and cons of both boards
thanks in adv
erwin
i am interested with this dac.
however there is 2 version. which one should i take?
1. CS8416 Digital receiver +Up-bit modular CS8421 + PCM1798 DAC
New 24/192 DAC DA CONVERTER CS8416+CS8421+PCM1798 USB - eBay (item 160518883450 end time Jan-11-11 23:34:13 PST)
or
2. DIR-9001 Digital receiver + Up-bit modular CS8421 + CS4398 DAC
Gigawork DIR-9001 24/192 Up-sampling DAC DA CONVERTER - eBay (item 160510993000 end time Dec-24-10 23:38:54 PST)
whats the pro and cons of both boards
thanks in adv
erwin
If you remove the daughter board there are 4 jumpers needed to restore the signal path. You should have received them with the Dac but I didn't either. They are the same as the ones on the input matrix.
Erwin,
I've never heard either one of those combinations. Some like the 9001 better than the 8416 receiver.
The 1798 is a current output chip, the 4398 is a voltage output chip. If you had transformer output in mind the 4398 is definately the way to go unless you know what you're doing with I/V conversion.
Combinations
If you have a soldering iron, you can do a direct out mod. I have read many different reports of direct out mods to CS43122, 4397, 4398, AK4393,4395, and 4396 and all report a big improvement in the sonics. I have never read of anyone that tried direct and went back to active. Except for the I out chips such as PCM1798/ 1794 which sound best with a tube I/V conversion. My simple transformer I/V with the 1798 is not quite as good as any of the V out chips I have. If you want to mod you will want the 4398 for sure. I bought several different modules and two boards in order to compare the many different modules. The DIR9001 definitely sounds way better than the CS8416 but has problems with it's input switching. One of my 9001 only locks to the RCA and one only locks to the optical regardless of the input selector settings. And, neither upsampler works at all with either 9001. Also ask the seller if you can purchase an 8416 module in case the 9001 still has bugs. My CS43122 dacs sound better than the PCM1798 but can't use the upsampler either due to a low level whine so I would go with the 4398. Too bad because even despite the whine, the upsampler does sound better even though I can already upsample in my SCR2496. Upsampling somewhere sounds better. I haven't read about any problems upsampling into the 4398. Maybe the upsampler is doing for the 8416, and then some, what the DIR9001 already does via their onboard clocks. I would go with an 8416, 4398, with the upsampler and purchase a 9001 for $20 as an experiment if you don't mind wasting the money in the case that it still doesn't work right. shipping is expensive so it will be cheaper to buy the spare module together with the initial purchase just in case. It should be no problem for the seller to sell you the other input board if you ask him. Be very careful when trying to remove the modules as the high quality milled pin sockets fit very tight and are brittle. Very easy to snap if the module doesn't come straight up.
"I have never read of anyone that tried direct and went back to active"
At least i did´nt..
I bought a DIR9001 after I bought my board with CS8416 and now I use the DIR9001.I only use the coaxial input anyway so..
I tried the PCM1794 with trafo output,but I think the CS4398 beats it,so now I use it with a trafo output.
And yes i use the SCR2496 upsampler to.
At least i did´nt..
I bought a DIR9001 after I bought my board with CS8416 and now I use the DIR9001.I only use the coaxial input anyway so..
I tried the PCM1794 with trafo output,but I think the CS4398 beats it,so now I use it with a trafo output.
And yes i use the SCR2496 upsampler to.
Upsampler?
Does your upsampler module function with the DIR9001 or do you just use the SRC2496 for upsampling?
Does your upsampler module function with the DIR9001 or do you just use the SRC2496 for upsampling?
thanks guys for the fast inputs
yes i have the transformer output in mind. i got no knowledge on I/V conversion. so its a no go. ill opt for 4398 then.
but pardon my ignorant, is 8416 and 9001 is interchangeable between those to? or i need to get an extra input board for 8416? really no idea here
ps: i opt to use transformer output. and the input of optical. i wanna plug it on mac mini and ps3
i already has TDA1545A with usb inputs NOS DAC. so might want to try different flavor see if i prefer the upsampling dac
thanks in adv
erwin
yes i have the transformer output in mind. i got no knowledge on I/V conversion. so its a no go. ill opt for 4398 then.
thanks sendler for the input. i need to ask the seller if they come with 8416, 4398, with the upsampler and option purchase a 9001
but pardon my ignorant, is 8416 and 9001 is interchangeable between those to? or i need to get an extra input board for 8416? really no idea here
ps: i opt to use transformer output. and the input of optical. i wanna plug it on mac mini and ps3
i already has TDA1545A with usb inputs NOS DAC. so might want to try different flavor see if i prefer the upsampling dac
thanks in adv
erwin
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"Does your upsampler module function with the DIR9001 or do you just use the SRC2496 for upsampling?"
Not shure how you mean,I use the Roland M-1000 Digital mixer (44.1khz)(Wich can allso uppsample to 96khz,but I dont use it.)
before the DIR9001.
Then the upsamling is done by the SRC2496.And I think it´s working good.
Not shure how you mean,I use the Roland M-1000 Digital mixer (44.1khz)(Wich can allso uppsample to 96khz,but I dont use it.)
before the DIR9001.
Then the upsamling is done by the SRC2496.And I think it´s working good.
hi sander
here is the seller reply. hope it may address your problem. could be the source signal which lock them. im not sure
"9001 is a digital receiver up to 24/96 if you check the specification.
If you input a 24/192 file, then there will be some error and actually it is not bugs.
9001 is much lower distortion than CS8416, so many people like it.
Most of the music files are 16/44.1, so there 'll no problem."
hope it helps.. so i will order the 8416, 4398 with upsampling which he happen to have in stock. however, there is no input transformer for the spdif. should i better get one spdif input transformer as well?
here is the seller reply. hope it may address your problem. could be the source signal which lock them. im not sure
"9001 is a digital receiver up to 24/96 if you check the specification.
If you input a 24/192 file, then there will be some error and actually it is not bugs.
9001 is much lower distortion than CS8416, so many people like it.
Most of the music files are 16/44.1, so there 'll no problem."
hope it helps.. so i will order the 8416, 4398 with upsampling which he happen to have in stock. however, there is no input transformer for the spdif. should i better get one spdif input transformer as well?
Plug in module
I mean to ask about the plug in upsampling module that comes with the Big Dac Board.
.
.
I mean to ask about the plug in upsampling module that comes with the Big Dac Board.
.
.
Cap instead of transformer
It doesn't matterwhat sampling rate I use into the DIR9001s. One of them only locks to optical and one only locks to coax. I believe it is a problem with the little signal selecting switch chip on the underside of the module not properly coming under control of the selector jumper setting.
.
The coax on the Big Dac Board is isolated by a cap instead of a transformer. It seems to work very well judging by the sonics that this board is capable of.
.
.
It doesn't matterwhat sampling rate I use into the DIR9001s. One of them only locks to optical and one only locks to coax. I believe it is a problem with the little signal selecting switch chip on the underside of the module not properly coming under control of the selector jumper setting.
.
The coax on the Big Dac Board is isolated by a cap instead of a transformer. It seems to work very well judging by the sonics that this board is capable of.
.
.
hi sander
here is the seller reply. hope it may address your problem. could be the source signal which lock them. im not sure
"9001 is a digital receiver up to 24/96 if you check the specification.
If you input a 24/192 file, then there will be some error and actually it is not bugs.
9001 is much lower distortion than CS8416, so many people like it.
Most of the music files are 16/44.1, so there 'll no problem."
hope it helps.. so i will order the 8416, 4398 with upsampling which he happen to have in stock. however, there is no input transformer for the spdif. should i better get one spdif input transformer as well?