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digitally = coaxial or optical..
sound is then converted to 1 and 0's.. (like cd sortoff).. digitally transferred sound hasnt got ANY loss at all cuz, a 1 send is a 1 received.. analogue sound is with sinusoids.. and cables can add background noise.. so ur sound get distorted a little bit.. And if u put ur volume high.. that distortion also gets amplified and that fucks up the sound.. Digital doesnt have that effect..
About that cd-played + turntable stuff..
A turntable: the needle falls into small holes in the vinyl, which makes a little 'sound' (simply said), this sound is 'recorded' by the element (the head)... and is then transmitted to the output port.. for example.. if u take a turntable, give it power, put vinyl on it, play it (without connection to an amplifier) u can also hear the vinyl (softly volume though)..
a cd player works via laser, which (digitally) reads the small holes into the lower layer of the cd.. which creates a 1 or a 0.. a d-a (digital - analogue) converter converts it into what we call 'sound'.. that sound is already amplified by then..
so the difference is that a cd-player always has an higher output volume.. cuz that one is always being amplified.. and a turntable is not..
thats why on a simple amplifier u have 2 kinds of input ports for them:
phono - for turntable (phone is being PRE-amplified)...
aux - for cd players (this is not being PRE-amplified..)
after that PRE-amplified thing comes ur volume control.. and then ur output to ur boxes....
try to put ur cd player to phono input, put volume control to ZERO.. and start ur cd.. then slightly take ur volume higher.. u'll see, its VERY VERY VERY loud, and gets distorted soon, cuz its being pre-amplified.. and that is not necessairy for cd-players..
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