Cogito wrote:
Did you measure this in your place or Dave's?
Is any DSP like room correction in effect when measuring?
DSP is not necessarily bad, but from measurement perspective, if it is in effect you measured the music system as unit, not just the speakers.
This was at my place; however, since the measurements are gated, room interferences have been removed.
No DSP
I suggested to David to have a listening party with fellow forum members while employing the new crossover, which has been voiced to provide a more neutral presentation. People can then provide suggestions if they feel certain frequency bands need to be EQ'd (boosted/attenuated). The speaker should respond well to EQ (note the even spacing in the provided polar response), with the exception of a narrow range that is impacted by diffraction issues (2Kz - 3.5Khz).
After the group is in agreement, we can then modify the passive crossover to similar tonality (*noting there is a limitation to how far you can go with passive).
Who knows, we may end up far from flat response, and that's perfectly fine. Common as it may be, it's not a hard and fast rule that every person must prefer a flat speaker.
In fact - it took me some time to adjust to more neutral speakers. For the longest time I enjoyed more colored speakers (e.g., Klipsch, etc.) - and still do from time to time. Giving neutral speakers a chance is something new to me, and I'm enjoying it.
If I'm not mistaken, I believe David plans to employ a bass cabinet below a certain frequency, incorporated with an active crossover. I would suggest he voice the passive crossover in the top cabinet to provide a neutral response, and then employ active EQ to taste.
I think they sound really nice. I never heard them with the original crossover, only took sine sweeps, but I did get a chance to listen to the new crossover for a short time and liked what I was hearing. The woofers blend really well with the ribbon - even as you walk up to the speaker - you can tell there is nice integration between the components (no sudden jumps from tweeter to woofer / vice versa).
Since Jim and Charlie were last to listen to them - I'm curious to hear their thoughts on the revised crossover. They look good on paper - but the true test would come from listener feedback.