A6 Rear 165
Rear Speaker System for Audi A6
(A6-R61 + A6-RTW1 + A6-RTW1-C1)
A6-R61: The A6-R61 uses the ESB CS-W61 6.5"/16.5 cm component mid-woofer, with special adaptor to fit the Audi A6 original woofer housing in the rear seats.
A6-RTW1: The A6-RTW1 uses the ESB CS-T21 1"/2.5 cm component tweeter, with special adaptor to fit the Audi A6 original tweeter housing in the rear seats.
A6-RTW1-C1: ESB A6-RTW1 dedicated crossover.