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General Car Audio
DB meter reading up to 160
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<blockquote data-quote="hispls" data-source="post: 7703433" data-attributes="member: 614752"><p>This is a very accurate sensor... as accurate as your DMM. Also if you have a good sound card you could obtain a copy of TrueRTA and calibrate that to display what that sensor reads. The microphone style sensors can be had for reasonable, but they max out around 130-140 and are typically used for home theater RTA (where reference level is only 120dB). Good for response curves and testing crossover points and such, but not so useful for high power.</p><p></p><p>IMO you don't "need" a termlab to compete, or "need" a sensor that's accurate to 1/100th of the TL reading, you just need a sensor that's accurate with itself so that you can see your peak frequency and accurately test small gains and losses in your testing.</p><p></p><p>I'd also vouch for SPL Lab meter. I've owned that, Makeitlouder, and Termlab. All are accurate, I find SPL Lab (wireless) is just really convenient, easy to use, and much nicer software package than termlab. Makeitlouder sensor is great, but you need an accurate DMM for it to be much use, and sadly the soundcards in my laptops aren't clean enough to allow me to integrate into a good RTA package.</p></blockquote><p></p>
[QUOTE="hispls, post: 7703433, member: 614752"] This is a very accurate sensor... as accurate as your DMM. Also if you have a good sound card you could obtain a copy of TrueRTA and calibrate that to display what that sensor reads. The microphone style sensors can be had for reasonable, but they max out around 130-140 and are typically used for home theater RTA (where reference level is only 120dB). Good for response curves and testing crossover points and such, but not so useful for high power. IMO you don't "need" a termlab to compete, or "need" a sensor that's accurate to 1/100th of the TL reading, you just need a sensor that's accurate with itself so that you can see your peak frequency and accurately test small gains and losses in your testing. I'd also vouch for SPL Lab meter. I've owned that, Makeitlouder, and Termlab. All are accurate, I find SPL Lab (wireless) is just really convenient, easy to use, and much nicer software package than termlab. Makeitlouder sensor is great, but you need an accurate DMM for it to be much use, and sadly the soundcards in my laptops aren't clean enough to allow me to integrate into a good RTA package. [/QUOTE]
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DB meter reading up to 160
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