Hello all, My sub doesn't draw much current, why?
To be honest, I'm indoors with it, and I'm not sure where I should post it? I could have asked in the Power Supply forum or Subwoofers.
I have a 12" 4ohm woofer on 1 pair of a 4 channel amp, bridged and being fed Linkwitz Transform. The car amp is 4 x 100w so i guess 4 x 35 rms, not sure of power or believe what they say, but anyhow, I'm using this amp because I havn't bought a mains jobby yet. I've set the Transform @20hz and this comes via 40hz 24db lowpass filter. My power source, a PC 300w psu. I've been happy with it, but have been curious about the power my amp's drawing. So I installed my DMM in 10A range and although its late, its displaying 0.70 Amp +- 1Amp. Even when theres no music playing, it reads the same. I began turning it up to my normal daytime level, and it read 0.80Amp. The test signal was Dance music on a satelite tv channel and then some Hip Hop, with which it managed 1.02Amps. I deduce that 99% listening time, the system isn't doing much. The gain on the Amplifier is maxed, without you being able to listen, its hard to ask, but, do you think with modern music and the use of a Linkwitz Transform, I should be drawing more current? The 12" cone is moving no more than my 6" mains.
At 12 volts 12 x 0.7 = 8.4 W
Confused.
iUSERTLO72p
To be honest, I'm indoors with it, and I'm not sure where I should post it? I could have asked in the Power Supply forum or Subwoofers.
I have a 12" 4ohm woofer on 1 pair of a 4 channel amp, bridged and being fed Linkwitz Transform. The car amp is 4 x 100w so i guess 4 x 35 rms, not sure of power or believe what they say, but anyhow, I'm using this amp because I havn't bought a mains jobby yet. I've set the Transform @20hz and this comes via 40hz 24db lowpass filter. My power source, a PC 300w psu. I've been happy with it, but have been curious about the power my amp's drawing. So I installed my DMM in 10A range and although its late, its displaying 0.70 Amp +- 1Amp. Even when theres no music playing, it reads the same. I began turning it up to my normal daytime level, and it read 0.80Amp. The test signal was Dance music on a satelite tv channel and then some Hip Hop, with which it managed 1.02Amps. I deduce that 99% listening time, the system isn't doing much. The gain on the Amplifier is maxed, without you being able to listen, its hard to ask, but, do you think with modern music and the use of a Linkwitz Transform, I should be drawing more current? The 12" cone is moving no more than my 6" mains.
At 12 volts 12 x 0.7 = 8.4 W
Confused.
iUSERTLO72p