tinnitusintx

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    Thanks for the reply, stryke.

    What I’m considering will be at least a three way, perhaps even a four way, as I’d like the IB15’s to handle up to around 80 (so the Dipole 15’s don’t have to work so hard), the Dipole 15’s from 80-ish to 250-ish, the mid band driver from 250-ish to 2k-ish, and the cd horn beyond that (with the appropriate cd compensation applied to tame the rising response you spoke of). So you think the TD8M or 6M would be best in this region for an OB application?


    Member

    A different CD is worth considering, but I built a two-way once using a JBL 2225 and Altec 511 horn and tried a few different CD’s (Radian, Renkus, 802) and it seemed like the mid range always lost a lot of the “meat” when the CD was playing down around 1K. Also, I’d rather not be crossing between two drivers in the 1k region and would really prefer to have the mid driver covering 2k or beyond. I’d definitely consider a better suited driver for mid range duty if what I have on hand simply isn’t designed to do what I’d like to do. How high can the LO12 play before directivity becomes an issue (assuming the LO is better than TD since this is an OB design)? Or, is there another AE driver that best satisfies what I’m trying to accomplish…which is cover 250 or so up to or beyond 2k in an OB?


    Member

    Got it. Well, that’s a bit of a bummer. I’ve read in a few places the Radian seems to be getting out of its “happy place” when asked to play below 1.4-1.5k. Does the Dipole 15 have similar directivity characteristics as the 15M?


    Member

    Thanks for the reply, Face. I thought the 15M didn’t start to narrow until upwards of 2k? ❓

    These drivers are capable of reproducing frequencies of up to 2Khz off axis, and much higher with a more narrow dispersion pattern.

    You’re saying it’s actually down to 90 degrees at 900 Hz? And if I’m only concerned with response at my seated listening position, is it really that critical to make sure the dispersion angle of the Lambda driver isn’t less than the dispersion angle of the wave guide?

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