Guys, tanong lang po... what woud be the effect if I will use a higher wattage amp matching it with lower wattage speaker? I'm using kasi a sakura amp with 250 w and DTX naman ang gamit kong speaker. DTX is only 145 w. Help naman.. baka masira kaagad ang speakers ko. Tsaka yun surround speakers ko (AIWA compo 
), kapag naka set sa DTS may time na parang nagka crack yun sound nya. Ano kaya cause nun? Pero pag naka DD mode, wala naman. Siguro nagpaparamdam na yung DTX 9.5B hehe...
The ideal rating for an amp is 20% higher than the max. speaker input rating, so at 145W for the DTX 9.5Towers, 175W amp ang ideal to make sure that neither one hurts the other. But since Sakura amps are usually rated at 8 ohm loads, and the DTX 9.5 Towers are rated at 6 Ohms, medyo you have nothing to fear. My own personal "GUESSTIMATE" formula is this: For the speakers, at 145W/6Ohms=24.16+20%=29W/Ohm to drive it ideally. Sa amp, at 250W/8ohm=31.25W/Ohm. I multiply this by the impedance of the speaker it drives, 31.25W/Ohm x 6 Ohms = 187.5W. So, my personal conclusion is, the DTX 9.5 Towers are like driven by a 187.5Watt amplifier which is a bit higher than the ideal 175W amp it should be driven with. So okay na okay sya. Remember mga bro, ang formulang ito is just my own, I'm not saying it's correct, this is just to give me a bit of an idea with regards to matching amps and speakers with different impedances.
Now, with regards to your Aiwa speakers, since mas malakas naman talaga in terms of volume and clarity ang DTS encoded audio because of its lesser compression than Dolby Digital, it definitely has an effect on you speakers. Sa Yamaha amp ko, kung DD, set ang volume at -30dB, but sa DTS, at -40dB lang. Now, the reason why your speakers are cracking is that it can't handle the signal that is fed to it, either because mababa ang power rating ng Aiwa speakers mo or, baka may sira ang woofer/driver cone nya. So, paki-check kung which. Hope i helped. TC.
