Hi at all.
I write cause i am desperate.
I built a 3 way speaker with 26w on bass, reflex system.
Box is 110lt brutto volume (big I know) cause simulation with measured TS parameters suggested 110lt/ 26hz Qb3 alignement and also bigger volumes with Sb4 align.
Right now NearField response is really flat as predicted but bass is few and there is no impact/punch at all.
Someone would comment please and help me?
Thanks a lot
I write cause i am desperate.
I built a 3 way speaker with 26w on bass, reflex system.
Box is 110lt brutto volume (big I know) cause simulation with measured TS parameters suggested 110lt/ 26hz Qb3 alignement and also bigger volumes with Sb4 align.
Right now NearField response is really flat as predicted but bass is few and there is no impact/punch at all.
Someone would comment please and help me?
Thanks a lot
Hi at all.
I write cause i am desperate.
I built a 3 way speaker with 26w on bass, reflex system.
Box is 110lt brutto volume (big I know) cause simulation with measured TS parameters suggested 110lt/ 26hz Qb3 alignement and also bigger volumes with Sb4 align.
Right now NearField response is really flat as predicted but bass is few and there is no impact/punch at all.
Someone would comment please and help me?
Thanks a lot
Could be lots of things.
Do you have sound when disconnecting the mid and tweeter?
Did you correctly asamble the crossover? (my main suspect atm)
Does the speaker itself work correctly?
We need the crossover schematic.
Foto's of the crossover, so we can check the connections.
Any frequency curve you measured.
Please see attachments: first image is merged nearfield response of woofer and port.
Port is 100mm IDx200mmL for 26 hz tuning
second image is simulation with measured FR (FR; PHASE and IMPEDANCE)
third is obviously the xover.
Woofer box is very good and has no Leaks; volume is 110Lt as said before.
XOver is correctly assmebled
Thanks for the help
Port is 100mm IDx200mmL for 26 hz tuning
second image is simulation with measured FR (FR; PHASE and IMPEDANCE)
third is obviously the xover.
Woofer box is very good and has no Leaks; volume is 110Lt as said before.
XOver is correctly assmebled
Thanks for the help
Attachments
A quick run through hornresp confirms your volume / port / tuning at 26Hz. However it also shows a response peak that you don't have. Does you sim include the box BR effect and baffle ?
How wide is the baffle?
How wide is the baffle?
Attachments
Is it possible this is a relative problem. The bass will sound weak if the mid and tweet are relatively too high. What is the measurement at 1m?
This is a baffle sim that predicts the near and far loss from the baffle.
This is a baffle sim that predicts the near and far loss from the baffle.
Attachments
This is the the axial response of the sealed box (assuming you can seal the port securely).
If you have no leaks the BR will rolloff 4th order (-24db/oct), and the sealed version will rolloff 2nd order (-12db/oct). The sealed response is shown below. You can measure it to confirm no leaks. The sealed should still perform well.
If you have no leaks the BR will rolloff 4th order (-24db/oct), and the sealed version will rolloff 2nd order (-12db/oct). The sealed response is shown below. You can measure it to confirm no leaks. The sealed should still perform well.
Attachments
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