IMPORTANT SAFETY INFORMATION 1. Read all the instructions before attempting to use the ACT-18X. 2. Follow all instructions contained in this manual. 3. Keep these instructions in a safe place where they can be found and referred to in the future. 4. Use common sense in operating your ACT-18X and heed all warnings included in your operating manual. 5. Do not use the ACT-18X near water.
SETTING UP YOUR ACT-18X SUBWOOFER The B-52 Pro-Audio speakers described in this instruction manual are intended for use directly on the floor, ground or stage. The ACT-18X and ACT-18XS described in this manual should NEVER be flown. These models are intended primarily for use in mobile installations. Fixed install versions and flying versions are available, so for those purposes please consult your B52 Pro-Audio dealer or our website www.B-52PRO.com for appropriate models.
ACT-18X SUBWOOFER FEATURES AND USAGE Numbers in this section refer to the numbered controls opposite 1) LEVEL CONTROL: Sets the volume of the subwoofer without influencing the volume of the satellites the satellites, or the full range outputs on the panel mounted XLR connectors. 2) PHASE SWITCH: Allows the user to reverse the direction of excursion at low frequencies.
FEATURES 8 On 9 External Speaker 7 Off Pins: 1 + or 2 + = (+) 1 - or 2 - = (-) L 6 High-Pass 5 Full-Range Outputs 3 L Input Power 2 1 Level Protection R R To ACT-18XS 4 0 Phase 180 B -52 MAD E IN U.S.A. Digital Amplifier ACT-18X Designed by ETI Sound Systems / B-52 Pro Audio, Huntington Park, CA Model: ACT-18. May be covered by one or more patents pending.
CONNECTING YOUR ACT-18X NUMBER 1 - CONNECTIONS TO ACTIVE SPEAKERS Active Full-Range Speakers HIGH-PASS OUT Active Full-Range Speakers L MAD E IN U.S.A. External Speaker On L Off Pins: 1 + or 2 + = (+) 1 - or 2 - = (-) Full-Range High-Pass To ACT-18XS Outputs Level Protection L R R Power Input 0 Phase R From Mixer Balanced Output From Mixer Balanced Output B-52 Audio Input B-52 MAD E IN U.S.A. 180 B -52 MAD E IN U.S.A.
NUMBER 3- CONNECTION TO ADDITIONAL POWER AMPLIFIERS AND PASSIVE SPEAKERS High-Pass External Speaker On Off Full-Range Level Protection L L Phase Pins: 1 + or 2 + = (+) 1 - or 2 - = (-) R R 180 0 Power Outputs To ACT-18XS Input B -52 MAD E IN U.S.A. Digital Amplifier ACT-18X Designed by ETI Sound Systems / B-52 Pro Audio, Huntington Park, CA Model: ACT-18. May be covered by one or more patents pending. ON Power OFF Fuse B-52 12 Amp MAD E IN U.S.A. MAD E IN U.S.A.
B-52 PROFESSIONAL 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.
