![]() It can also be useful for detecting distortion in the audio signal caused by poorly designed or malfunctioning audio equipment. Oh btw, the amplifier will be output a 50hz sine wave for the detector to work with. The purpose of this tool is to enable the installer to set the gain of an audio amplifier to match the source unit’s output level, accurately and quickly. I'm not sure if I should have looked at messing with the comparators resistor values because I am a newb with comparators, they sort of confuse me.Īnyway, so I was wanting to ask, can I use another comparator to reduce the amplifiers 100+ possible volts when I need it too? Basically I can expect to deal with as little as 35v give or take(from the amplifier) to say 300 like i previously mentioned so I am assuming a simple resistor voltage divider dosn't work? And it would be inefficient? Maybe I'm thinking to hard about this, any ideas for the circuit I'm trying to implement? The crazy high voltage from the amplifier is what is difficult for me to deal with. ![]() Well, I modeled a simple resistor voltage divider to proportionally reduce the input voltage within range(from say 150v from the amplifier output to 6v for example) but the led dosn't light at low dc voltage of say 1 volt because of how much I lowered it. I was thinking of using a 741 or tl082 so my input needs to be under 15v iirc. My issue is the voltage range of op amp input. The dc, if any will pass and light an led at the output. There is a capacitor on one of the inputs to filter the dc from one of the inputs so that only ac will be the same at both inputs, causing it to not be "amplified" by the output. So far I have been modeling a common mode comparator that filters out any ripple voltage. So, I have studdied alot, I have reached the section of the ebook of ADC/DAC but I dont have a wole lot of experience and I dont have all of the material down so I'm a newb. Basically I move the gain knob until it clips and back off slightly.Īmplifier power is so cheap these days that I can be dealing with around upto 300 volts from the amps output, or atleast that is where my limit is going to be made as far as compatibility goes. It will be used with upto very high output caraudio amplifiers as a tool to set gain so that I can connect the output terminals to it and have an led light as soon as it detects clipping. Low Battery LED trigger battery voltage < 6.Okay, I am trying to design a simple clipping detector circuit. Guaranteed operating range of input signal is 1.2Vrms – 200Vrms. ![]() If treated as such it should provide you with many years of reliable service.ĭistortion Detection trigger level > 1.0% Harmonic Distortion When you pick up the DD-1+, know that you are holding a precision piece of equipment. Quasi-RMS voltmeter (can detect clipping at any frequency) Verifies that the gain overlap of an install hasn't been tampered with after installįeatures our Patent Pending Distortion Detection system plus digital microcontroller and our proprietary firmware Sets audio system gain overlap, continuously variable from 0.0dB - 15.0dB in 0.1dB stepsĬhecks gain overlap of an audio system without making any adjustments to the existing settings What is the difference between this and the original DD-1+? DAmore Engineering DD-1 Distortion Detection Tool Front and Rear Speaker Connector Wiring First you will pay 90.00 then when returned within 14 days we. The purpose of this tool is to enable the installer to set the gain of an audio amplifier to match the source unit’s output level, accurately and quickly.
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