By: Mackie
Professional Audio / Video Products
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
400W, 12-inch Portable Powered Loudspeaker

The Mackie TH-12A is a powered loudspeaker that features a 12" high-output woofer and a 1.4" titanium dome compression driver. With 1000 watts of power, you get the high output you need in a package that is designed to be tough, lightweight and portable.

Featuring a built-in 3-band EQ with sweepable midrange, the TH-12A allows you to customize your sound to best fit your acoustic environment. Using efficient Class-D amplification and a dynamic bass frequency response, the speaker delivers a clear and present low end at any volume.


Available Options Include:

0021521-04 Amplifier Assembly for TH-12A (100-120VAC)
0021521-05 Amplifier Assembly for TH-12A (200-240VAC)
2039987 Compression Tweeter for TH-12A

TH-12A features include:

  • Class-D amplification
  • 12" high-output woofer
  • 1.4" titanium dome compression driver
  • Precision 2-way crossover
  • Transducer time alignment
  • System protection / limiting
  • 3-band EQ with sweepable mid to dial in your sound
  • Mic/line input allows direct connection of microphone
  • Flexible mounting options including tripod and pole-mounting
  • Angled design perfect for use as a stage monitor
  • Rugged polypropylene construction designed for heavy use
  • Weight: 29.0 lb  (13.2 kg)


Frequency Response 57 Hz - 20 kHz (-3 dB)
50 Hz - 23 kHz (-10 dB)
Horizontal Coverage Angle 90˚
Vertical Coverage Angle 60˚
Maximum SPL 125 dB SPL @ 1 m
Compression Driver 1.4' (36 mm)
Diaphragm Titanium (tweeter)
Magnet Ferrite
Woofer Diameter 12.0" (305 mm)
Cone Material Paper (woofer)
Rated Power 500 W RMS, 1000 W peak (overall)
400 W RMS, 800 W peak (LF)
100 W RMS, 200 W peak (HF)
Amplification Class D (LF)
Class AB (HF)
Input Female XLR / 1/4" combo balanced
Input Impedance 20 k balanced bridging, 10 k unbalanced
Thru Male XLR balanced
Level Control Rotating knob, 0 dB at center
Sensitivity +4 dBu for full output (level control @ center)
-36 dBu for full output (level control @ max)
Crossover Type 24 dB / octave
Crossover Frequency 3 kHz
Equalization Low Frequency EQ: ±6 dB @ 80 Hz, shelving
Mid Frequency EQ: ±6 dB sweepable from 100 Hz to 8 kHz
High Frequency EQ: ±6 dB @ 12 kHz, shelving
Power US detachable line cord:  100 – 120 VAC, 50 – 60 Hz, 130W


EU detachable line cord:  220 – 240 VAC, 50 – 60 Hz, 130W

AC connector:  3-pin IEC 250 VAC, 10 A male

Power supply type:  switchmode

Operating temperature: 0 - 40˚ C

Extended ambient temperature: 32 - 104˚ F


Input Protection Peak and RMS limiting, power supply and amplifier thermal protection
LED Front / rear power ON, rear OL (overload)
Construction Basic Design:  Trapezoidal


Cabinet: Polypropylene

Finish: Textured

Handles: One on each side, one on top

Grille: Perforated metal with weather-resistant coating

Monitor Angle:  50˚




Mounting Pole-mountable via the built-in socket on the bottom of the cabinet. Be sure the pole is capable of supporting the weight of the Thump12 loudspeaker
Dimensions 23.5 x 14.5 x 12.4" (596 x 367 x 314 mm)
Weight 29.0 lb (13.2 kg)

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Prices and specifications subject to change without notice.