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O W N E R ’ S M A N U A L

18” Powered Subwoofer

TH-18s

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Summary of Contents for TH-18S

Page 1: ...OWNER S MANUAL 18 Powered Subwoofer TH 18s...

Page 2: ...or an experienced radio TV technician for help CAUTION Changes or modifications to this device not expressly approved by LOUD Technologies Inc could void the user s authority to operate the equipment...

Page 3: ...www mackie com for more information about this and other Mackie products Subwoofer 1 Subwoofer 2 Please write the serial number for your TH 18s here or for both TH 18s s if you have two for future re...

Page 4: ...ontrol and loudness from the subwoofer Now that you have your subwoofers working it s time to hunker down and read the rest of this manual especially the following ADDITIONAL TIDBITS OF WIDSDOM Never...

Page 5: ...ug and play system that is ideal for small clubs DJs and rehearsal spaces The TH 18s has both full range and high pass stereo outputs for connection to full range top boxes Just dial in the appropriat...

Page 6: ...the inputs of the powered loudspeakers so these reproduce the mid to high frequencies in stereo and the subs provide the low frequencies in stereo TH 18s Left and Right Main Powered Loudspeakers Macki...

Page 7: ...he inputs are summed in mono to play in the subwoofer but this does not affect the full range or high pass outputs which remain fully stereo The left and right full range line level outputs of this su...

Page 8: ...e other loudspeakers in your system and account for the subwoofer s location and your room s environment 1 IEC AC Receptacle and Fuse Connect the detachable line cord to this IEC socket securely and p...

Page 9: ...ers the subwoofer The frequency range above 125 Hz is sent to these line level output jacks Connect these outputs to the inputs of your main powered loudspeakers or to the inputs of the amplifier powe...

Page 10: ...ights when the amplifier in the TH 18s is near the clipping point It is okay if the OL indicator blinks occasionally because this means that the transient peaks are just reaching the maximum output of...

Page 11: ...its position especially if you are listening to just the subwoofer This is normal as our ears perceive them both as the same The polarity invert switch comes into play when the TH 18s subwoofer is pai...

Page 12: ...esigned to protect the subwoofers under reasonable and sensible conditions Should you choose to ignore the warning signs i e frequent OL LED indications excessive distortion you can still damage the s...

Page 13: ...o fuses blow in a row then something is very wrong Try a different outlet in a totally different location If fuses continue to blow see the Repair section on the next page to find out what to do No So...

Page 14: ...g a ground loop If connecting an unbalanced output to the TH 18s balanced input make sure the shield is connected to the unbalanced ground and to pin 1 of the XLR Repair For warranty service refer to...

Page 15: ...labeled FULL RANGE and two labled HIGH PASS These are also wired according to the AES standards listed above The FULL RANGE connectors allow you to connect several TH 18s s Simply plug the signal sour...

Page 16: ...uency Range 10 dB 35 Hz 150 Hz Frequency Response 3 dB 50 Hz 115 Hz Max peak SPL calculated 1 129 dB Max peak SPL measured 2 124 dB Transducer Diameter 18 in 457 mm Voice coil diameter 3 in 76 mm Diap...

Page 17: ...vided by the distributor in your local market LOUD warrants to Customer that the product will be free from defects in materials and workmanship under normal use during the Warranty Period If the produ...

Page 18: ...Road NE Woodinville WA 98072 USA United States and Canada 800 898 3211 Europe Asia Central and South America 425 487 4333 Middle East and Africa 31 20 654 4000 Fax 425 487 4337 www mackie com E mail s...

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