More so, why is the PB1000pro lighter than the PB1000.
I'm not talking about the PB3000 or the mono 12.
The PBpro and the mono 10 are pretty much the same size in dimensions.
I'm sure SVS did their homework, I'm not trying to discredit their engineering, just curious on how they were able to reduce weight.... I know other companies will do matrix bracing...but I would imagine the research and development is pretty expensive for that type of bracing.
We made several engineering changes to the PB-1000 Pro that results in some weight savings:
The grill went from MDF to plastic injection mold.
The PB-1000 bracing layout had more MDF due to the size and diagonal path of the single port. The new PB-1000 Pro ports have a much more uniform, efficient and lighter bracing system to support the dual ports and brace the cabinet.
The new Sledge STA-325D amplifier is considerably lighter (while also being more powerful and lower distortion) than the Sledge STA-300D. The new STA-325D has major design and architectural updates internally with efficient optimizations for material usage, heat-sinking and the DSP board.
While the new PB-1000 Pro 12" woofer is larger, the cone/suspension/VC has a very low moving mass, and the basket is a stronger and lighter design. The surround and top gasket were also redesigned, allowing the elimination of a large rubber trim ring.
All told we achieved an approximately 10% weight reduction through advancements in engineering and design, along with a substantial increase in performance.