these spdif ports are used to output only a PCM/AC3/DTS or other digital stream.
yes, only other devices having an SPDIF digital input can be plugged in
SPDIF is not optical.It is Electrical. the optical link is another rival format developed by toshiba, and hence it being called TOSlink. but most of us call it optical anyway
either a home theatre reciever, or creative makes a line of speakers with a built in decoder. also, you can buy a seperate decoder from creative. but for the kind of cash the creatives sell, you’re better off with a better soundcard or a reciever
There’s a third type of connector as well… the AES/EBU connector for balanced connections. It has mandatory shielding and is generally found on pro equipment… runs at 3-10V vs 0-1V for normal Coax connectors, its a lot less susceptible to noise than normal RCA/BNC connectors. Even though they are not so much used for digital connections, for Analog, they are used much more widely.
PS: I run my soundcards over spdif and connect it to the external DAC with its own dedicated linear toroidal PSU… results in way better audio quality than anything any discrete soundcard for PC can produce.
Citypulse DA7.2x costed me 400$ including shipping. Another 50$ or so of mods in the mail which should arrive this week. Check the link below for more info.
Clock chip… Since its an oversampling DAC, it benefits a lot from a clock upgrade… the higher the rate of oversampling, the better the final analog signal. Replacing the stock 22.x MHz clock with a newer more accurate 33.x MHz clock chip.
I’m not sure if there are any gains to be had using a discrete small signal stage🤔, especially with so much digital circuitry unshielded in the same box
^^All high end DACs use a discrete output stage. The only opamp’ed dac I know of is the Benchmark DAC-1 which doesnt have that special a reputation. See the red blocks in this pic… thats the output stage.
^^True as long as the opamps are electrically identical its a lot of phun :P. Else its toast :P. I’m thinking of replacing the big nichicons with blackgates while I’m at it. The question though is where the hell do i get blackgates :(.