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A while back, I was working on a design with the Ultimax 12. I recently noticed the new High-Excursion Reference drivers. I am now looking at the RSS315HE-22. This is the first Dayton driver I have seen that compares favorably to my old TC Sounds drivers. I’m kicking around some ideas.
I will be using a Pioneer SC-LX801. I will likely drive the sub with a Behringer NX6000 with a mini DSP 2x4 to provide high-pass filtering and EQ. The frequency response plot below shows performance in a 3.3 cubic foot ported enclosure tuned to 22Hz. This plot also includes a LR4 high-pass filter at 16Hz to control cone movement below the port frequency. It also includes the LR4 low-pass crossover that will be set in the receiver. I do this to see the performance as it will be, including the entire system.
The plot below shows cone excursion at 1500W. It looks like cone travel is well controlled at high power levels.
The plot below shows port air velocity at 1500W. I know it’s much higher than some people prefer, but it’s still below 34m/s accepted in many successful designs. Also, I don’t expect this thing will see 1500W most of the time.
The length of the port is a little long, and the resonance is close to the harmonic of the crossover frequency. What I typically see is I have to shorten the port after the build to get the performance predicted by WinISD. I expect the actual build will end up with a slightly shorter port with higher resonance and higher air velocity.
Based on initial modeling, I think I like this driver. Has anyone used one of these?
I will be using a Pioneer SC-LX801. I will likely drive the sub with a Behringer NX6000 with a mini DSP 2x4 to provide high-pass filtering and EQ. The frequency response plot below shows performance in a 3.3 cubic foot ported enclosure tuned to 22Hz. This plot also includes a LR4 high-pass filter at 16Hz to control cone movement below the port frequency. It also includes the LR4 low-pass crossover that will be set in the receiver. I do this to see the performance as it will be, including the entire system.
The plot below shows cone excursion at 1500W. It looks like cone travel is well controlled at high power levels.
The plot below shows port air velocity at 1500W. I know it’s much higher than some people prefer, but it’s still below 34m/s accepted in many successful designs. Also, I don’t expect this thing will see 1500W most of the time.
The length of the port is a little long, and the resonance is close to the harmonic of the crossover frequency. What I typically see is I have to shorten the port after the build to get the performance predicted by WinISD. I expect the actual build will end up with a slightly shorter port with higher resonance and higher air velocity.
Based on initial modeling, I think I like this driver. Has anyone used one of these?
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