Yamaha HW680W Double Braced 600 Series Hardware Product Details Yamaha HW680W Double Braced 600 Series Hardware HW680W Product Condition: New $319.93 inc. tax $299.00 ex. tax ? Tax based on Georgia, United States. Product Description Yamaha Hardware HW680W Double-braced 600 Series Hardware Set All stand legs in this set feature exceptionally stable double-braced construction. The hardware itself may be lightweight, but with a chain-type foot pedal and other solid features this hardware will stand up to heavy rock drumming.