Horn Loudspeaker in Car
1st January 2004 - report written and upload
True event around April 2003
In Car Study
The system: -
Signat Power Amplifier model RAM-4 is a 150 watts RMS per channel stereo amplifier. It has two 30 amps fuses which is capable of consuming a minimum of 12v times 60 amps = 720 watts peak. At RMS which is 720 times 0.707 = 509.04 watts RMS. Further coupled to the assumption that power amplifiers are 50% efficient therefore 509.04 divide by 2 = 254.52 watts RMS bridged. Well approximate. Just enough to power a single 15". More power is needed to safeguard headroom for high dynamic musics.
Linear Power Amplifier model 452i is a 22.5 watts RMS per channel stereo amplifier. It has two 5 amps fuses, which when using the above assumption gives 42.42 watts RMS per channel. Just enough for the mid-bass. Again more power is needed.
hhehehehehe, Linear Power...............under spec???.................value for money...........
Finally another Linear Power Amplifier model 452i to power the horns. This will be more than enough.
Signal Path: -
ACOUSTICS SECTION AUDIO SECTION CAR SECTION
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