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8 inch driver recommendation for 1/2 wavelength 35 Hz horn subwoofer?
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Posted on December 24, 2020 at 15:51:56 | ||
Posts: 4
Joined: August 14, 2019 |
Returning to an old abandoned project of years ago.....a 1/2 wavelength 35 Hz horn sub. These would be for live sound. Ideally the driver should have maximal excursion with an Fs of around 45 to 50 Hz as the Fs would drop into the 30Hz range once in the horn. These Fs frequencies are usually for midbass drivers but these usually have limited Xmax. Subwoof drivers with Fs around 30Hz would drop the Fs to high teens in the horn and would have an inefficient power response in a 35Hz horn. Another possibility two six inch bass drivers with similar Sd (surface area) as an 8 inch with Fs in high 30s Xmax 7mm? As to the question of why a 1/2 wavelength horn as opposed to a 1/4 WL? A 1/2 wl horn will have 5dB more in output than the 1/4 WL. This is equivalent to carrying 3 to 4 one quarter WL horn sized cabs around and amps etc. Any suggestions appreciated |
RE: 8 inch driver recommendation for 1/2 wavelength 35 Hz horn subwoofer?, posted on December 26, 2020 at 14:54:00 | |
ah ... thanks regards, |
RE: why an 8" driver for a 35Hz sub, posted on January 24, 2021 at 20:16:22 | |
Posts: 284
Location: So. Cal Joined: May 30, 2002 |
Yes, that's my point - MUCH longer horn... |