LX Mini Enhanced - Scanspeak Ellipticor 18WE/4542T00 and Seas L12RE/XFC full range
Has anyone measured, or is able to measure, the 90 degree off axis response of the Scanspeak Ellipticor 18WE/4542T00?
Background:
LXmini-woofer design
I'm thinking that substituting the SEAS L16RN-SL, for the Scanspeak Ellipticor 18WE/4542T00 will allow for higher output and lower extended response.
One of the first Active speakers using the Ellipticor, the AOS E 18 VA (scroll down news section) is apparently linear down to 24Hz (SPL Limited of course).
AOS E 18 VA Speaker
Has anyone measured, or is able to measure, the 90 degree off axis response of the Scanspeak Ellipticor 18WE/4542T00?
Background:
LXmini-woofer design
I'm thinking that substituting the SEAS L16RN-SL, for the Scanspeak Ellipticor 18WE/4542T00 will allow for higher output and lower extended response.
One of the first Active speakers using the Ellipticor, the AOS E 18 VA (scroll down news section) is apparently linear down to 24Hz (SPL Limited of course).
AOS E 18 VA Speaker
Last edited:
Found it, figure 13:
Test Bench: Scan-Speak Ellipticor 18WE/4542T00 Midbass Woofer | audioXpress
Output is some 8dB down at 1kHz at 90 degrees, so the existing 2nd order Linkwitz-Riley filter (12 dB/oct, LR2) should work fine and connect the full range with opposite polarity.
To raise output the full range driver could also be switch out to the Seas SEAS L12RE/XFC which has much larger output and power handling than the existing Seas Prestige FU10RB-H1600-04 4" Full Range.
Driver diameter is 120mm vs 98mm, so clearance from the full range to the woofer would only be reduced by 11mm - so should still work as a point source configuration (I think).
Power handling of both the 18we/4542t00 4 ohm and the L12RE/XFC 4 ohm are quite similar - so might even allow for a simpler 1st order crossover.
Feedback?
Test Bench: Scan-Speak Ellipticor 18WE/4542T00 Midbass Woofer | audioXpress
Output is some 8dB down at 1kHz at 90 degrees, so the existing 2nd order Linkwitz-Riley filter (12 dB/oct, LR2) should work fine and connect the full range with opposite polarity.
To raise output the full range driver could also be switch out to the Seas SEAS L12RE/XFC which has much larger output and power handling than the existing Seas Prestige FU10RB-H1600-04 4" Full Range.
Driver diameter is 120mm vs 98mm, so clearance from the full range to the woofer would only be reduced by 11mm - so should still work as a point source configuration (I think).
Power handling of both the 18we/4542t00 4 ohm and the L12RE/XFC 4 ohm are quite similar - so might even allow for a simpler 1st order crossover.
Feedback?
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