TH-12A 2-Way 12" Powered Loudspeaker OWNER’S MANUAL
Important Safety Instructions 1. 2. 3. 4. 5. 6. 7. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9.
CONTENTS What? Me read a manual? SAFETY INSTRUCTIONS............................................ 2 INTRODUCTION....................................................... 5 HOOKUP DIAGRAMS............................................... 5 FEATURES . ............................................................. 8 REAR PANEL DESCRIPTION................................. 8 1. INPUT......................................................... 8 2. THRU ......................................................... 8 3.
Getting Started The following steps will help you set up your loudspeakers quickly. INITIAL SETTINGS: 1. Turn the LEVEL control on the rear panel all the way down. 2. Set the EQ ON/OFF switch out (OFF). 3. Turn the POWER switch OFF. CONNECTIONS: 1. Connect the line-level signal from your mixer (or other signal source) to the INPUT jack on the TH-12A rear panel (XLR connector). 2. Connect the supplied AC power cord to the IEC socket on the back of the loudspeaker.
Introduction The Mackie TH-12A Powered Loudspeaker delivers a chest-pounding 400W of peak system power via ultraefficient Class-D amplification. This means more power with less weight, perfect when portability matters. The 12" high-precision woofer and 1" compression driver provide punchy sound with superior midrange response, ideal for vocal and acoustic applications.
Daisy-Chaining Two Speakers Per Side TH-12A Using a Microphone and the Thru Jack TH-12A CONTOUR EQ CONTOUR EQ U U EQ EQ OFF ON HIGH 12kHz 12kHz -15 +15 600 FREQ 100 FREQ 8k 100 U ON OL MID POWER 8k U ON OL MID LEVEL -15 +15 U POWER U LOW 80Hz O OFF ON HIGH -15 +15 600 -15 +15 U U U 80Hz EQ -15 +15 MAX OO CONTOUR EQ LOW O -15 +15 LEVEL OO OFF ON HIGH MAX 12kHz THRU THRU INPUT -15 +15 600 INPUT FREQ 100 8k U ON OL MID POWER TH-12A TH-12A -15 +15 U
PA System with two powered subwoofers Left Main Powered Loudspeaker (Mackie TH-12A) Right Main Powered Loudspeaker (Mackie TH-12A) High Pass Output High Pass Output Pole Mount Pole Mount ProFX12 Mixer From Mixer Right Output Powered Subwoofer (Mackie SRM1801) From Mixer Left Output Powered Subwoofer (Mackie SRM1801) The left and right line-level outputs from a mixer feed the inputs of two powered subwoofers.
Mackie TH-12A Features REAR PANEL DESCRIPTION CONTOUR EQ U 9 EQ 5 OFF ON HIGH 12kHz -15 +15 600 7 FREQ 100 POWER 10 O 8k U ON OL 6 MID -15 +15 U 8 4 LEVEL U 3 LOW 80Hz -15 +15 OO MAX THRU INPUT 2 1 11 This is where you connect AC power and your signal to the loudspeaker and make adjustments to the frequency response of the speaker to match the loudspeaker’s location and your room’s environment. 1.
4. OL Indicator 8. LOW EQ The OL (overload) indicator lights when the amplifiers in the TH-12A are 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 the amplifiers and you are getting the most from your TH-12As. This control provides up to 15 dB of boost or cut below 80 Hz and it is also flat at the center position (U).
Protection Circuits There are several protection mechanisms designed into the TH-12A to safeguard the loudspeakers and amplifiers from inadvertent damage. CAUTION: The protection circuits are designed to protect the loudspeakers 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 speakers in the TH-12A by overdriving them past the point of amplifier clipping.
Appendix A: Service Information If you think your Mackie product has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (www.mackie.com) to get some ideas or contact our technical support heroes. You may find the answer to the problem without having to send your Mackie product away. If two fuses blow in a row, then something is very wrong. Try a different outlet in a totally different location.
Noise/Hum • Check the signal cable between the mixer and the loudspeaker. Make sure all connections are secure. These problems usually produce crackling noises or hum. • If you are using two or more TH-12A powered loudspeakers, try plugging them all into the same AC outlet panel or outlet strip. The purpose for this is to connect them all to the same earth ground point and reduce the possibility of creating a ground loop.
Appendix C: TH-12A Specifications Acoustic Performance Equalization Frequency Range (–10 dB): 57 Hz – 20 kHz Frequency Response (–3 dB): 70 Hz – 18.
TH-12A Dimensions WEIGHT 25.5 lb 11.6 kg 23.5 in / 596 mm 14.1 in / 357 mm 22.8 in / 579 mm 6.3 in / 160 mm 6.0 in / 152 mm 20.6 in / 522 mm CONTOUR EQ 14.5 in / 367 mm 12.
Thermal Monitoring Loudspeaker Processing 12K 100-8K HI 80 MID LO Analog to Digital Converter Level Control LOUD Technologies Inc. is always striving to improve our products by incorporating new and improved materials, components, and manufacturing methods. Therefore, we reserve the right to change these specifications at any time without notice.
Mackie Limited Warranty Please keep your sales receipt in a safe place. This Limited Product Warranty (“Product Warranty”) is provided by LOUD Technologies Inc. (“LOUD”) and is applicable to products purchased in the United States or Canada through a LOUD-authorized reseller or dealer. The Product Warranty will not extend to anyone other than the original purchaser of the product (hereinafter, “Customer,” “you” or “your”). For products purchased outside the U.S. or Canada, please visit www.mackie.
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