Most subwoofer comparisons come down to a few extra hertz and a slightly bigger box. This one does not. RBH's Unrivaled 21 is $11,945 for a single 21-inch carbon fibre driver in a sealed cabinet that weighs 371 pounds. The Unrivaled 221 starts at $16,945, puts two of those drivers in an enclosure running about a quarter of a ton, and both are deliberately wide and shallow, roughly 44.5 inches across on the 21 and 56 on the 221, so they live along a front wall rather than eating into the room.
The five grand question has a catch sitting in the pricing. That $16,945 buys twice the cone area but only one DA-2602DSP amplifier. The configuration people will quote at you, up to 4,000 watts per woofer, needs the second amp so each one can be bridged onto a driver, and that pushes the range up to $18,895 with the real total landing near nineteen thousand. So the honest comparison is not one big sub against one twice as powerful, it is one driver against two with a chunk of the amplification effectively sold separately.
My read is that at this level the second driver buys headroom most rooms will never ask for. If your room genuinely is big enough to need it, two separate cabinets in different positions would do more for what you actually hear in every seat than one larger box sitting in the same spot. Room modes do not care what the cabinet weighs. Distributed bass has been the better answer for a decade and it keeps losing to the single enormous sub because the single enormous sub photographs better.
Also, 371 pounds. Whoever puts that in place is not you and a mate on a Saturday.
The five grand question has a catch sitting in the pricing. That $16,945 buys twice the cone area but only one DA-2602DSP amplifier. The configuration people will quote at you, up to 4,000 watts per woofer, needs the second amp so each one can be bridged onto a driver, and that pushes the range up to $18,895 with the real total landing near nineteen thousand. So the honest comparison is not one big sub against one twice as powerful, it is one driver against two with a chunk of the amplification effectively sold separately.
My read is that at this level the second driver buys headroom most rooms will never ask for. If your room genuinely is big enough to need it, two separate cabinets in different positions would do more for what you actually hear in every seat than one larger box sitting in the same spot. Room modes do not care what the cabinet weighs. Distributed bass has been the better answer for a decade and it keeps losing to the single enormous sub because the single enormous sub photographs better.
Also, 371 pounds. Whoever puts that in place is not you and a mate on a Saturday.
