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<blockquote data-quote="thylantyr" data-source="post: 1286304" data-attributes="member: 560358">Start here;<a href="http://www.allaboutcircuits.com/vol_3/chpt_8/2.html" target="_blank">http://www.allaboutcircuits.com/vol_3/chpt_8/2.html</a>Learn what &#039;single ended input&#039; is vs. &#039;differential input&#039;. Differential is akin to balanced. A balanced setup is differential but a differential input doesn&#039;t guarantee that it&#039;s balanced.Consumer audio is single ended input using a RCA cable. The generic RCA cablehas one wire to carry the signal and a grounded braided shield as the return path. Single ended meaning &#039;one input&#039;. Some higher end home audio uses balanced or differential. All pro audio is balanced.Balanced or differential needs 3 wires, two for signal, one for ground.The signal is non-inverting and inverting that feeds into the amplifier and thissignal comes from the source, plus ground.In proaudio they use [differential] balanced inputs to reduce noise induced inlong cable runs as differential inputs only amplify the difference betweeninput 1 and input 2 so any common noise on input 1 and input 2 will be rejected,the amount of rejection is referred to as CMRR.Pro audio also uses higher voltage preamp signal to raise the noise floor too, plusbalanced inputs, it kills any noises picked up by cabling.To get off topic, you also have high speed digital electronics that have LVDSinputs/outputs to get higher speed operation of the chip. &#039;Low Voltage Differential&#039; Signaling;<a href="http://www.webopedia.com/TERM/L/LVDS.html" target="_blank">http://www.webopedia.com/TERM/L/LVDS.html</a>There is alot of differential stuff in the electronics world, you just don&#039;t see it.</blockquote>

[QUOTE="thylantyr, post: 1286304, member: 560358"] Start here; [URL="http://www.allaboutcircuits.com/vol_3/chpt_8/2.html"]http://www.allaboutcircuits.com/vol_3/chpt_8/2.html[/URL] Learn what 'single ended input' is vs. 'differential input'. Differential is akin to balanced. A balanced setup is differential but a differential input doesn't guarantee that it's balanced. Consumer audio is single ended input using a RCA cable. The generic RCA cable has one wire to carry the signal and a grounded braided shield as the return path. Single ended meaning 'one input'. Some higher end home audio uses balanced or differential. All pro audio is balanced. Balanced or differential needs 3 wires, two for signal, one for ground. The signal is non-inverting and inverting that feeds into the amplifier and this signal comes from the source, plus ground. In proaudio they use [differential] balanced inputs to reduce noise induced in long cable runs as differential inputs only amplify the difference between input 1 and input 2 so any common noise on input 1 and input 2 will be rejected, the amount of rejection is referred to as CMRR. Pro audio also uses higher voltage preamp signal to raise the noise floor too, plus balanced inputs, it kills any noises picked up by cabling. To get off topic, you also have high speed digital electronics that have LVDS inputs/outputs to get higher speed operation of the chip. 'Low Voltage Differential' Signaling; [URL="http://www.webopedia.com/TERM/L/LVDS.html"]http://www.webopedia.com/TERM/L/LVDS.html[/URL] There is alot of differential stuff in the electronics world, you just don't see it. [/QUOTE]

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