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Smd anolog volt meter question
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<blockquote data-quote="bbeljefe" data-source="post: 8174737" data-attributes="member: 655960"><p>There are two things to consider with this meter. First, it's an analog meter rather than a digital meter and that means it responds more quickly to voltage drops, because it doesn't sample the voltage every X milliseconds, it simply displays the voltage in real time... all the time. That said, so does a $17.00 needle displayed analog voltage gauge you can buy at any parts store. But the problem with those meters is that the flex we bassheads like to see on our windshields and body panels also makes the needles on those meters jump around to the point that we can't get an accurate reading.</p><p></p><p>Second, and this applies to any meter... electricity travels at the speed of light so all points on even a 30' long limo truck should be the same. However, resistance changes that rule and, resistance manifests itself in myriad ways. So even though the cig lighter plug "should" be the exact same place, electrically speaking, that the amplifier power terminal is, it isn't.</p><p></p><p>In the end, the SMD meter is the most accurate voltage meter you can buy if it is monitoring the voltage at the amplifier input. But even then, only if it is securely attached at the amplifier being monitored.</p><p></p><p>As for being over priced, if you're chasing tenths of a dB in the lanes or if you're running your daily electrical and amplifiers at the threshold of their safe limits... I would argue that the ~$80.00 investment is dirt cheap insurance.</p><p></p><p>For the rest of us, CT Sounds' meter onboard the bass knob or the average inexpensive volt meter (connected at the amp) will suffice.</p><p></p><p>And another thing about that CT Sounds bass knob... it also has a clipping indicator. I recently took on that line and when I installed two of their 1400.1s strapped in my daily, I put the bass knob right next to my DD-1 when I gain set. The clipping indicator lit at almost the exact same time the DD-1 distortion light lit. In fact, it lit a few milliseconds before, rather than after. That and the performance of the amps has convinced me that I made a good decision in representing them.</p></blockquote><p></p>
[QUOTE="bbeljefe, post: 8174737, member: 655960"] There are two things to consider with this meter. First, it's an analog meter rather than a digital meter and that means it responds more quickly to voltage drops, because it doesn't sample the voltage every X milliseconds, it simply displays the voltage in real time... all the time. That said, so does a $17.00 needle displayed analog voltage gauge you can buy at any parts store. But the problem with those meters is that the flex we bassheads like to see on our windshields and body panels also makes the needles on those meters jump around to the point that we can't get an accurate reading. Second, and this applies to any meter... electricity travels at the speed of light so all points on even a 30' long limo truck should be the same. However, resistance changes that rule and, resistance manifests itself in myriad ways. So even though the cig lighter plug "should" be the exact same place, electrically speaking, that the amplifier power terminal is, it isn't. In the end, the SMD meter is the most accurate voltage meter you can buy if it is monitoring the voltage at the amplifier input. But even then, only if it is securely attached at the amplifier being monitored. As for being over priced, if you're chasing tenths of a dB in the lanes or if you're running your daily electrical and amplifiers at the threshold of their safe limits... I would argue that the ~$80.00 investment is dirt cheap insurance. For the rest of us, CT Sounds' meter onboard the bass knob or the average inexpensive volt meter (connected at the amp) will suffice. And another thing about that CT Sounds bass knob... it also has a clipping indicator. I recently took on that line and when I installed two of their 1400.1s strapped in my daily, I put the bass knob right next to my DD-1 when I gain set. The clipping indicator lit at almost the exact same time the DD-1 distortion light lit. In fact, it lit a few milliseconds before, rather than after. That and the performance of the amps has convinced me that I made a good decision in representing them. [/QUOTE]
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