Manufacturer Part Number: QS204PB The QS204PB is a unique 4-waybracket design...Manufacturer Part Number: QS204PB The QS204PB is a unique 4-way bracket designed specifically for the Dayton Audio QS204-4 70V commercial speaker system. With the QS204PB mounting bracket you can mount from one to four Dayton Audio QS204-4 loudspeakers...more