Data from the mfg and independent people (Hificompass) suggest that you cross the woofer either at around 500 Hz to a mid or at 1.5Khz to a tweeter. The choice of a 3" FR push the first option, you can easily go away with a LR2 design.
Ralf
Ralf
I found a full range driver that should be suitable for this project: Faital 3FE25. I'm planning on running it from around 250Hz. I'll eventually be doing an active crossover, I'm not going to bother with passive.
The amps will be TDA7294 for the woofer and LM3886 for the full range (a bit overkill but I already have the boards made). I'm currently bulding the power supplies for the amps.
I have sketched the enclosures. I simulated 34L tuned at 41Hz, the enclosures have around 37L. The Faitals will be isolated in their own enclosures.
The amps will be TDA7294 for the woofer and LM3886 for the full range (a bit overkill but I already have the boards made). I'm currently bulding the power supplies for the amps.
I have sketched the enclosures. I simulated 34L tuned at 41Hz, the enclosures have around 37L. The Faitals will be isolated in their own enclosures.
Attachments
A couple of months ago I've found that topic:
MTM with TC9fd
Thank you Adason - great idea!
If you are opted to a SB20PFC30-4 (the 4 ohm's version has SPL of 92dB/m), you could match sensitivity without any or with very little attenuation.
I didn't make a simulation, but due the natural rolloff of the woofer from 400Hz to 800Hz seems you could use 1st order passive crossover - only one inductor 2mH or so. Worth a try.
Looks like promising 3 way inexpensive project.
Regards
MTM with TC9fd
Thank you Adason - great idea!
If you are opted to a SB20PFC30-4 (the 4 ohm's version has SPL of 92dB/m), you could match sensitivity without any or with very little attenuation.
I didn't make a simulation, but due the natural rolloff of the woofer from 400Hz to 800Hz seems you could use 1st order passive crossover - only one inductor 2mH or so. Worth a try.
Looks like promising 3 way inexpensive project.
Regards