Nguyn nhn loa b r v cch khc phKhi loa b r hay b si, bn ng ngh ngay n vic em i sa hoc bo hnh. Li khuyn a ra l nn kim tra li mt cht . Cng vic s lm mt thi gian ca bn, bi v c th loa b mt s li c bn nh: ( Loa r do amply tham kho ti y : Loa r do amply )- Dy tn hiu loa b t.- Gic loa cn phi thay th khi n qu c.Khi kim tra li m vn b r hay si th c th do nhng li sau:

1, Nguyn nhn loa b r hoc b si.- Loa b r do bn hay micro h di.khi xy ra ting h,c ngha l loa ca bn ang b tn hi nghim trng. Cng h nhiu,loa cng d b h. Mt ting h loa treble trong 5 giy c th hiu rng n bng khong 10 ln nng lng pht ra ca mt ting xanh ban nh lin tip 0,5 giy 1 ln. Khi ting h pht ra th cun dy loa s sinh nhit rt nhanh chng v khng kp to ra mi trng quanh n nn bc mi thm.

- Bn chia crossover khng thch hp:Crosover cho tn s mid ,treble qu thp hoc amlpi ti loa treble qu ln;bn phi lun lun kim tra thng s k thut ca loa khi bn mun chia crossover..

- H thng loa khng cng sut p ng nhu cu ca bn, bn m ht cng sut amplyCh c 2 cp loa m bn mun em chng ra ngai sn vn ng c 20.000 ngi nh vi hiu qu cao?.Nh vy, n s d dng lm chy tt c cc loa ca bn!

- S dng EQ qu mc:Mt s ngi vn EQ hnh ch V,iu ny chng c li mt t no c.Khi bn tng treble v bas,nhng vn gim mid th h thng loa ca bn s b qu ti phn mid,nhng thc t li khng m lng bn cn.Lun phi nh rng EQ phn nhiu dng ct nhng g d,ch khng phi tng nhng g thiu(tt hn l ct nhng g d).V d:Bn mun treble nhiu hn,hay bt bass i mt cht(ch ng tng treble nh!).Cn nu bn mun tng bass?Hy lm ngc li.

- S dng khng ng Compressors/Limiters:C v ngc nhin nh?Com/Limiters dng bo v loa c m?Ci g cng c mt tri ca n,nu bn s dng khng ng chc nng th n s lm h loa ca bn y!

- Amply ca bn ang b qu ti.

- Bn xy ra ting n ln t ngt: Chng ta phi lun tun th theo nguyn tc :m t trn xung di.Cn khi tt th t di ln trn(khi m,bn hy m Power cui cng.Cn khi tt,bn hy tt Power u tin).t bit,trnh rt gic,chm dy,rt mic,gy ra ting ng ln trong khi h thng m thanh ang hot ng.N s nng loa ca bn d dng hn bao gi ht. c an ton trong vic tt m nhm, ta nn dng b cp ngun tun t.Nn mua dy, rc tng i mt cht v vic hn dy vo rc cng cn c i bn tay kho lo, khi rc 6ly b xoay th tt nht hy loi chng ra.

- Tn hiu trn Mixer v cc b effect,EQ b qu ti trc khi xung Power:Bn phi chnh Gain li thi.Ci ny lin quan nhiu n cht lng m thanh, cc bc ht sc lu khng khu no b clipping (hay l peak, hay l overload), my ch bo hiu ny thng nm cnh ci n mu .

- Vn tip tc s dng loa sau khi chng bi h:Bn ngh sao khi b ht hi s mi m vn tip tc tm ma?Nu bn nghe ting r hay m thanh lc nh lc to th tt nht hy kim tra li loa trc khi s dng tip.

Khi bit c nguyn nhn loa b r hay si, bn cn phi c phng n khc phc nh sau:

2, Cch khc phc loa b r hoc si.Cc nguyn nhn gy hng loa s biu hin phn cng loa, v i vi biu hin , ta li c cch khc phc khc nhau, di y l mt s cch khc phc c bn.- Kim tra loa bng cch ly tay n nh v u vo mng loa.khng thy st l ok.nu st th bn phi qun li.- Kim tra li ng cn dy loa c b c vo li nam chm , ci ny do khi qun li loa , canh khng ng .- Kim tra r do mng loa b rch , gin do b t nc , lm lch tm li cn loa .- Kim tra r do bong keo dn mng loa vi cn , bong keo gia mng v nhn loa, v r do bi hoc c vt ri vo trong phn cn loa, c vi kiu loa c mt l gia cc st ca c loa .- Kim tra lai cn trng nh ong tha t chui vo lm t, gy kt cn loa,- Kim tra li r do dy dn t trm dy loa vo mng sp t ri.