Bro Markcrenz
yap any duon sa 1/2/3/4 channel... Mono nga ang pakinig ko eh 
yun lang matitimpla mo using the 3EQ..
i tried kanina sa 11/12 pero ang control mu lang sa kanya eh yung master volume ng mixer aside dun wala na ,wouldn't be the same kung sa 5/6 or 7/8 ko i connect?
baka kailangan ko bumili ng stereo jack ah? yun ba yung may 2 or 3 black stripes? or dalawang jack para saa L & R kung ikakabit ko sa line input 5/6..
yap bro i'll take your suggestion ,bibili ako ng XLR to XLR cable for Mic. Bro baka maturuan mo ko sa above question ko thanks
don't burden yourself with balanced connection, using the TRS (in unbalanced connection) is ok, walang difference sa XLR yan. pareho naman silang balanced kung gugustuhin mo (or unbalanced). actually kung familiar ka sa internal design ng mixers makikita mo na iisa lang naman din pupuntahan circuit niyan, different input connector lang!
kung mahigit bente metros na siguro ang wire mo tsaka ka mag isip mag balanced connection, noise reduction won't even be evident at that lengths. mas maingay pa yun kakanta kaysa sa noise ng system sir.
tsaka unbalanced lang naman connection ng mic na gagamitin mo so useless mag XLR diyan unless your mic/line supports it. if ever that's the case, go one step further and mag phantom power ka na.
kung trip mo naka 3-EQ ang line source, make it twice para two channels. pero I do not suggest doing that, sa line input ka lang maglagay ng laptop mo (input 5/6?) so you don't accidentally overdrive the input.
EDIT: congrats on your new mixer sir, more priceless moments with the family yan.
