FourForty Backline is FM Systems’ brand for Musician Services standing Behind Every Musician.
Browse our used equipment eBay store for sound equipment from our rental inventory that we have for sale.
Drivers: 1 × 21’’ neodymium cone driver
Frequency Range: 31 Hz - 100 Hz
Output: 138 dB
Net Weight: 49 kg (108 lbs)
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