Blog › Forums › DIY Speakers and Subwoofers › What measurements are good for bracing and damping?
- This topic has 6 replies, 2 voices, and was last updated 11 months ago by
tone.
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June 21, 2022 at 10:21 pm #25160
tone
ParticipantSo I’m doing some experiments with adding bracing to my speakers and bitumen.
I don’t have an accelerometer, so I’ve been taking mostly RT60 decay measurements with REW.
And of course some freq response sweeps at the listening spot.
What measurements are best to take to see if there has been a positive result in let’s say adding bracing in my speakers?
Is there an accelerometer I can get to connect to REW?
Btw all these mods i am doing are completely reversible.
Thanks in advance !
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June 23, 2022 at 4:49 pm #25222
123toid
Keymaster@Tone One of the easiest is using DATS V3 and taking an impedance sweep. You will see humps in the impedance indicating resonance. The higher they are the worse the resonance. Obviously if you add bracing and or sound absorption material and the impedance humps disappear or get smaller you know it is working. You can also see if it is affecting your tuning frequency. Just keep in mind some of the resonances might be due to port resonance.
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June 27, 2022 at 12:10 pm #25294
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June 29, 2022 at 2:11 am #25329
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July 7, 2022 at 12:26 pm #25414
tone
ParticipantIs that better than an accelerometer?
I used the accelerometer with success, just as an update.
But of course I have to take multiple measurements at different areas of the cabinet
Thanks man. Super appreciate all the help and advice
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July 7, 2022 at 1:03 pm #25416
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July 8, 2022 at 2:26 am #25449
tone
ParticipantThanks so much.
You know, you are one of the most kind people that has helped me with this stuff
Super appreciate it
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