Srajan, I just finished your epic SV-Audio review which made for fantastic reading by the way. One question. As you describe different sources for "warmth", you speculate that two drivers covering the same bandwidth on a sloping baffle will suffer some time-alignment errors; and that perhaps the spacing itself also creates a bit less focus than a single driver as more of a point source would. At least that was my takeaway from what you wrote. If so, do you think that this designer would have been better off to put his two mid/woofers on a vertical baffle and only the tweeter on a slope? I'm just running this by you for some mental clarification on my side. Thanks, Charlie
I'm not a speaker designer so can only speculate. But if my assumption is correct and one contributor to the speaker's baked-in warmth is using two identical drivers across the same bandwidth whilst the lower one is a bit closer to the ear than the upper one… then the same assumption would say that placing both drivers at the same distance so either on a flat or concave baffle should minimize it. So you're following my line of reasoning correctly. Whether I'm right about this or not is another question entirely. Even if I'm right, it doesn't mark it as a "mistake" but far more likely, very deliberate ploy to arrive at the desired voicing. The same holds for connecting my observation of slightly softer focus to this larger compound driver creating a rather larger sound-origin area than a single 7" driver would. It could be a contributor and a sensible explanation; or not. Only the designer would know if he ran these experiments. As I wrote, at least in the Danish speaker scene Gro is quite the odd man out by not configuring its dual mid/woofers in a 2½-way array which all other domestic brands I looked into do. This clearly was a very intentional decision and I'm just speculating on how it influences what I heard. Srajan
