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Help With SQ Tuning
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<blockquote data-quote="calebkhill" data-source="post: 8272889" data-attributes="member: 647857"><p>I posted this in your other thread.</p><p></p><p>That 80prs will solve most everything.</p><p></p><p>Glad to hear you got one.</p><p></p><p>There is a process to set up the system. I'll try and post here.</p><p></p><p>This is a very basic way outside of dsp and rta.</p><p></p><p>1. Set desired crossover points and slopes.</p><p></p><p>2. Check polarity of each set (tweets and mids). Get the track from the iasca, meca, out r somewhere online that says "My voice is in phase, my voice is out of phase") the person should explain how to listen. This is important, if you're speakers are out of phase then everything will be wrong. The 80 prs was made fur these issues. You can invert the phase of each driver separately, which you may need to do to get the track to play right and get your speakers in phase.</p><p></p><p>3. A. Center frequency bands. Use 1/3 octave test tracks of "uncorrelated pink noise". First, use the 80prs separate L/R level control to center bands. Then, 800hz and below, you must use time alignment to center frequencies further.800hz and above you must use EQ to center frequencies.</p><p></p><p>B. Start at the 1/3 octave track somewhere at the middrange high pass filter. Start at 200hz. While the noise is playing, shift the noise track to the center of the dash with the separate L/R level control the prs supplies (these features are why you bought this unit). Decrease 1db, increase 1db on either side to shift the noise image to the center. Place something on your dash (bottle cap, penny) to mark the center of the dash, and use the separate L/R level control fur the drivers playing the frequency huge tuning</p><p></p><p>to move each noise track to the marker you used. Do this until you've centered the best you could with the level controls. (This is what "level matching" is),</p><p></p><p>C.Now, use time alignment to center bands up to 800hz. This is to increase the center focus where the L/R level method couldn't do completely. add delay to the left Mid in very small increments until the noise moves itself to the center of the dash. You'll literally see the image move.up to 800hz. Move the image to the marker you used.</p><p></p><p>D. After 800hz, use EQ to center frequency bands. (Thus is the interaural level difference area, and is why we aren't using time but level now. Use the same method as the L/R level control, but here instead of using the 80prs separate L/R volume level control as before, you want to use the separate L/R eq level. As you go up the octaves through the test tracks, you'll notice some frequencies may already line up with your marker. The ones that didn't, +1/-1 on either side of the EQ to bring the frequencies to your center marker.</p><p></p><p>Your done.</p><p></p><p>Your system should now sound quite well.</p><p></p><p>Play the "my voice is in phase" to confirm polarity and center image.</p><p></p><p>After this there are other fine tuning methods.</p><p></p><p>I'll see if i can make a video</p></blockquote><p></p>
[QUOTE="calebkhill, post: 8272889, member: 647857"] I posted this in your other thread. That 80prs will solve most everything. Glad to hear you got one. There is a process to set up the system. I'll try and post here. This is a very basic way outside of dsp and rta. 1. Set desired crossover points and slopes. 2. Check polarity of each set (tweets and mids). Get the track from the iasca, meca, out r somewhere online that says "My voice is in phase, my voice is out of phase") the person should explain how to listen. This is important, if you're speakers are out of phase then everything will be wrong. The 80 prs was made fur these issues. You can invert the phase of each driver separately, which you may need to do to get the track to play right and get your speakers in phase. 3. A. Center frequency bands. Use 1/3 octave test tracks of "uncorrelated pink noise". First, use the 80prs separate L/R level control to center bands. Then, 800hz and below, you must use time alignment to center frequencies further.800hz and above you must use EQ to center frequencies. B. Start at the 1/3 octave track somewhere at the middrange high pass filter. Start at 200hz. While the noise is playing, shift the noise track to the center of the dash with the separate L/R level control the prs supplies (these features are why you bought this unit). Decrease 1db, increase 1db on either side to shift the noise image to the center. Place something on your dash (bottle cap, penny) to mark the center of the dash, and use the separate L/R level control fur the drivers playing the frequency huge tuning to move each noise track to the marker you used. Do this until you've centered the best you could with the level controls. (This is what "level matching" is), C.Now, use time alignment to center bands up to 800hz. This is to increase the center focus where the L/R level method couldn't do completely. add delay to the left Mid in very small increments until the noise moves itself to the center of the dash. You'll literally see the image move.up to 800hz. Move the image to the marker you used. D. After 800hz, use EQ to center frequency bands. (Thus is the interaural level difference area, and is why we aren't using time but level now. Use the same method as the L/R level control, but here instead of using the 80prs separate L/R volume level control as before, you want to use the separate L/R eq level. As you go up the octaves through the test tracks, you'll notice some frequencies may already line up with your marker. The ones that didn't, +1/-1 on either side of the EQ to bring the frequencies to your center marker. Your done. Your system should now sound quite well. Play the "my voice is in phase" to confirm polarity and center image. After this there are other fine tuning methods. I'll see if i can make a video [/QUOTE]
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