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** Originally posted 12/18/12 on our other forums **
This is from our first prototype -- as noted in the image it has a shorter pole extension that we will end up with. I will do more Klippel on final production models... but so far I am very pleased with the new suspension platform as it's linear WAY out past the 30mm range and BL is linear up to ~30mm or so as well even before the final motor.
Le performance also turned out very good on it as well; the taller pole will sacrifice a bit here as the Le shape will be more of a plateau in the outward direction rather than an even parabolic shape. Being a sub-woofer I am willing to take that trade for more linear x-max -- we could see over 35mm linear one-way linear on final production.
Production models in stock format will be stiffer than these so higher Fs and Qts spec as well as lower VAS -- but we will have a ton of spider options available for the new frame platform so we can make just about anything.
The new 15" frame features a 257mm diameter spider and a very large surround to support a ton of throw (supports well beyond what is linear to prevent surround damage). The motor supports 62.5mm of mechanical capacity and we can get pretty close to that in the non-linear range of movement.
This is from our first prototype -- as noted in the image it has a shorter pole extension that we will end up with. I will do more Klippel on final production models... but so far I am very pleased with the new suspension platform as it's linear WAY out past the 30mm range and BL is linear up to ~30mm or so as well even before the final motor.
Le performance also turned out very good on it as well; the taller pole will sacrifice a bit here as the Le shape will be more of a plateau in the outward direction rather than an even parabolic shape. Being a sub-woofer I am willing to take that trade for more linear x-max -- we could see over 35mm linear one-way linear on final production.
Production models in stock format will be stiffer than these so higher Fs and Qts spec as well as lower VAS -- but we will have a ton of spider options available for the new frame platform so we can make just about anything.
The new 15" frame features a 257mm diameter spider and a very large surround to support a ton of throw (supports well beyond what is linear to prevent surround damage). The motor supports 62.5mm of mechanical capacity and we can get pretty close to that in the non-linear range of movement.
