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B-52 ACT18 Instruction Manual

18" active subwoofer

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Summary of Contents for B-52 ACT18

  • Page 2: Important Safety Information

    AMPLIFIER FEATURES: XLR Balanced Inputs. XLR Balanced Full-Range Outputs XLR Balanced (120 Hz) High-Pass Outputs. 0–180 Degree Phase Switch. Neutrik Speaker Output. Full Thermal & Short Circuit Protection. Signal Sensing On/Off Circuitry. CABINET FEATURES: Solid Void-Free Plywood Construction. Scratch Resistant Black Carpet Finish.
  • Page 3 Service is required when the ACT-18 has had liquid spilled on or inside the subwoofer, objects have fallen onto the speaker or it has been damaged in any way, the speaker has been exposed to rain or moisture, does not operate normally or has been dropped.
  • Page 4: Panel Controls

    Hz and above) directly to active, full-range speakers or through a rack mount amplifier to passive speakers. 18) External Speaker On/Off Switch: Turns Speakon NL-4 connector (and external subwoofer) on and off. When only using the ACT-18, turn this switch off. When an external, non-powered subwoofer (ACT-18S) is connected, turn this switch on.
  • Page 5 External Speaker Neutrik Pins: 1 + or 2 + = (+) 1 - or 2 - = (-) Sub-Out B 52 Digital Amplifier ACT-18 Designed by ETI Sound Systems / B-52 Pro Audio, Huntington Park, CA Model: ACT-18. May be covered by one or more patents pending.
  • Page 6 Connecting Your ACT-18 To Active Full-Range Speakers (As well as the ACT-18S - Passive 18” subwoofer) Connecting Your ACT-18 To Passive Full-Range Speakers (As well as the ACT-18S - Passive 18” subwoofer)
  • Page 7: Warranty Information

    WARRANTY INFORMATION Thank you for choosing this B-52 Pro-Audio sound product. B-52 manufactures some of the world’s best sounding and most reliable professional speaker sys- tems and components. E.T.I. Sound Systems, Inc., manufacturers of B-52, takes great pride in thoroughly testing each B-52 product prior to shipment. Please read the warranty terms and conditions below and carefully read the provided Limited Warranty Card for additional terms and conditions.
  • Page 8 E.T.I. SOUND SYSTEMS, INC. 3383 Gage Avenue, Huntington Park, CA, 90255 Phone: 323-277-4100 Fax: 323-277-4108 National: 1-800-344-4ETI Internet: www.B-52PRO.com E-mail: info@B-52PRO.com...

This manual is also suitable for:

Act-18s