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Message: <blockquote data-quote="Hz_to_kHz" data-source="post: 3189210" data-attributes="member: 33547">My stupid opinion ( dun shoot me if i'm wrong )Matching amplifier power supply with the speaker, it's not only look at the amplifier's RMS.double check ur speaker manual, it's have told u about the speaker SENSITIVITY (dB/w/m)if the speaker's SENSITIVITY is 90dB, that's mean when u give 1watts power to the speaker, the destiny 1 meter since ur speaker can get around 90dB sound pressure ( can explain to volume ).if you need to make more +3dB, the speaker need to get double up of the power.List like this.....1w to speaker = 90dB2w to speaekr = 93dB4w to speaker = 96dB8w.................= 99dB16w...............= 102dB32w...............= 105dB64w..............= 108dB128w............= 111dBactually if you use 75rms to run ur speaker, u can get minimium 108db (volume) into ur car, it's really a enough loud to let you listen song already!! next time matching power to the speaker, dun only see the RMS only.4ohm to 2ohm, the power supply from the amp with double up!!! Sure your speaker can get more of power from the amp, but ur amp Damping Factor will be drop also....Total Harmonic Distrotion will increase too. It's not good and not suggest to run parallel to ur component system.</blockquote>

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