AV123 X-LS “Classic” Upgrade Kit (Pair) $299.00 – $310.00Price range: $299.00 through $310.00 AV123 X-CS “Classic” Upgrade kit $209.00 AV123 X-MTM “Classic” Upgrade (Pair) $419.00 Onix RS550 Upgrade Kit (Pair) $568.00 – $868.00Price range: $568.00 through $868.00 AV123 X-CS “Encore” Kit $251.00
