# ARP Quadra

ARP, Quadra @ 09 March 2016

arp_quadra “I have 2 of these amazing beasts. This one is intact, has one slider stem broken, (bass decay)
It needs full calibration. All the membranes are functioning. When lifting the top to service the bass 4ft and the hollow wave goes blank. Every other membrane is 100 percent” Click here to visit listing on eBay

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