This is one of the earlier subwoofers made by Triad Speakers, the audiophile manufacturer https://www.triadspeakers.com/ Triad is known for their subs. This has dual drivers. This is tested and fully functional with great, tight, deep bass delivered by two eight inch drivers. I'm not sure about the wattage. I can't find the specific model number. My guess is that this is from the early 90's. It has line level and speaker level input and output, but this was made before LFE and Dolby surround was invented. The poly cone woofer drivers are original. It measures 20" tall, 13.5" deep 15" wide. It has some scuffs and dust. This is a nice sounding unit. It's ok to listen to this in Danvers.
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