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RazorRust

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  1. Here's what I read regarding the ohms: https://www.diyaudio.com/forums/car-audio/275689-tweeters-coaxials-parallel.html Not wanting to hook the tweeters to the head unit or eq if not necessary. Guess I'll just order some and see what happens.
  2. Hmmm. I was under the impression the amp would not see a 2 ohm load because the tweeters are only operating at the higher frequencies. Anyone know how I could quieten down the tweeters if they are too loud?
  3. I have 2 x 100w rms coaxial speakers powered by a 2 x 150w rms amp. The gain was set to match the lower rms speakers with a multimeter and 1k test tone. sqrt(100w*4ohm) = ac voltage. I assume the coaxials are seeing close to 100w at times. When the volume on my head unit is at its max non clip point. Which is quiet often. I would like to put tweeters with their own crossovers in parallel with the coaxials. How many RMS will the tweeter actually see? Will I blow a 40w rms tweeter? Also, the coaxial speaker's sensitivity is 90db and the tweeters ar
  4. I set the gain on my amp using a 40hz -5db test tone. I open a song in audacity, peak amplitude is -0.8db. I apply a 40hz LPF in audacity and make sure the peak amplitude is below -5db. But then I realized the LPF on my amp is set to 80hz not 40hz. If I apply a 40hz LPF in audacity, peak amplitude drops from -0.8db to -4.8db. If I apply a 80hz LPF in audacity, peak amplitude drops from -0.8db to -2.9db. Just trying to wrap my head around why I should use 40hz test tone to set my gain instead of a 80hz test tone.
  5. Thanks for the help! I've been reading about speakers for weeks! I have 2 coaxial speakers in the front. I am replacing each coaxial with a midrange and a tweeter. I plan on wiring the mid and tweeter in parallel. As well as wiring both sides in parallel. The tweeters (1.8KHz - 20KHz) have an inline crossover. The midrange speakers (85Hz - 7KHz) have no crossover. I will use a HPF around 100Hz. Will frequencies above 7KHz damage the midrange speakers? Could the amp be damaged because the mids and tweeters share the same frequencies betw
  6. Ahh I see. Thanks for the help. I have a couple more questions. Would the simpler crossover (6dB) use less power than the more complex crossovers? Therefore providing the speaker with more power. Does your average low end coaxial speaker have a crossover with a slope? I see some people saying there is just a filter. Isn't a crossover just a filter?
  7. Why are the crossovers that come with some component sets much larger than others? Some are small little boxes. Price and wattage don't seem to play a part. Neither are adjustable.
  8. I'm just using different Speaker box calculators I've found online. They all give me the same results. Like this one, https://www.diyaudioandvideo.com/Calculator/SpeakerBoxEnclosure/ . I definitely want a sealed enclosure with a fast response ("tighter" bass as some say). Its going in a hatchback car. I've got 300w rms for the subwoofer. I was trying to decide between 2 8's and 1 10. I started looking at subwoofers and boxes available. I was entering the qts, vas, fs, and vb into these speaker box calculators trying to find a decent set up. I read a lower q
  9. I am trying to build a subwoofer box. My understanding of Qtc is that below 0.7 is overdamped and above 0.7 is underdamped. Overdamped will be a tighter bass. However, when I enter a subwoofer's Vas, Qts, and a Vb (box volume) into a Qtc formula, I get a lower Qtc with a larger box. Which will not provide a tighter bass. So what am I doing wrong?
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