Mordaunt Short Alumni 9 (MS339) Subwoofer Test - YouTube
Mordaunt-short MS309W digital subwoofer. After removing from the case, this is what's left. The pcb has been checked over and aged or bad components... | By Wolstanton audio repairs | Facebook
Mordaunt MS-339 Short Alumni 8" Subwoofer - Very Good Condition | eBay