2011年1月18日 · Think of it like the difference between a 100W 1-ohm capable power amp (a low output voltage but capable of lots of current) and a 200W 4-ohm capable amp (high output voltage, but can't put out as much current). If you have a 1 …

2010年10月7日 · If you want to set it up so that there is no clipping on the inputs of the amp, then you need to make sure that that pot (ie the amps gain range) can pad down the amount of voltage that is coming in. If the input sensitivity of the amp is rated from 4-.4 volts and you have an 8 volt head unit. Then you can only pad down to meet a 4 volt input.

2011年9月22日 · I mention the rail voltage is pretty high on Linear Power amps, because I myself have measured the 5002IQ at 110v. I havent measure other brands but I wouldnt be surprise to see the same voltage on a 2000watt amplifier from a different brand when LP has the same voltage on a 500watt amp. Talk about reliability and headroom.

2020年2月16日 · If you are using an aftermarket source unit, with preamp-level outputs, this is most likely the position that you will use (regardless of what voltage output capability is claimed by the source unit). -The “High” position of the “Input Voltage”switch selects an input sensitivity range between 800mV and 8V. This is for use with speaker ...

2009年4月8日 · No, Look at a schematic, there is an output buffer resistor on the op-amp to protect it from shorts and is driven from a low current supply. An output IC is a glorified op-amp, an op-amp is not a glorified power IC. HOWEVER an op-amp WILL drive a speaker, proof in point is the Smopky line of tiny guitar amplifiers.

2023年6月15日 · Higher preamp means your gains on the amp are lower and your not amplifiying any noise in the system as much. Could be an issue, could be unimportant. Quality of the signal is more important then its level. Cheap 4v vs expensive 2v, quality of the components actually producing that signal, DAC inside the headunit etc.

2020年9月1日 · Hello, there is a bit of overlap for input voltage of the amplifier. Typically at 3/4 volume the average voltage out of a DSP is less than the full rated voltage. I would suggest having the input voltage in Low so that the least amount of gain can be used to achieve proper power output. This results in a higher signal to noise ratio.

2023年3月9日 · In layman's terms, the input sensitivity pot acts like a valve, to control the amount of signal getting to the input section of the amp. The numbers, in Volts, correspond to the amount of signal the amp needs to produce full power. So in its min. setting, it will require 5V and in its max. setting, only requires 200mV.

2023年10月3日 · An Ammeter connects a low impedance on the test points, so the equivalent of that is a "short circuit" between the test points. This is done to avoid a drop of current on the tested circuit. A ...

2018年1月10日 · In both AC and DC system there is a term called Voltage Drop. It is caused by the resistance or impedance in a cable. Voltage drop becomes especially important in a 12 Volt DC system because the voltage is so low, to begin with. As one sends 12 Volt DC current through a cable the voltage will keep dropping as the run of wire gets longer and longer.