Two-Way Speaker Design: The Mackie Thump12 powered loudspeaker
features a two-way driver design with a 1.4" titanium dome compression tweeter
and 12" high-output woofer. A precision 2-way crossover splits the high and low
frequencies between the tweeter and woofer.
1000W Peak Power: The Mackie Thump12 employs an ultra-efficient
Class-D amplifier (400W RMS/800W Peak) to drive the woofer for
dynamic low frequency response at all volume levels. It also features a
traditional Class AB power amplifier (100W RMS/200W Peak) to drive the tweeter
for clear high frequency performance.
Rugged Bass Reflex Enclosure: The Thump12's bass reflex enclosure
features two front-firing ports for greater efficiency and bigger bass response.
The speaker cabinet's rugged polypropylene construction is designed for heavy
3-Band EQ: The Mackie Thump12 powered loudspeaker uses a 3-band EQ
with sweepable mid to dial in the perfect sound for your application.
- Low EQ: This control provides up to 6dB boost or cut below 80Hz
and it is also flat at the center position. This frequency range represents
the punch in bass drums, bass guitar, male singers, etc.
- Mid EQ/Mid Frequency: This is a midrange EQ control that provides
6dB of boost or cut centered at any frequency between 100Hz to 8kHz. This
Mid EQ circuit is flat (not boost or cut) at the center position. This
frequency range includes most vocals (male at the lower end of the range and
female at the upper end of the range, plus the fundamentals and harmonics
from many instruments.
- Hi EQ: This control give you up to 6dB boost or cut above 12kHz.
The circuit is flat (no boost or cut) at the center position. Use it to add
sizzle to cymbals, and an overall sense of transparency or edge to
keyboards, female vocals, guitars, etc. Turn it down to remove any high
Level Knob: The level knob adjust the overall signal level at the
input to the built-in power amplifier. Thump loudspeakers are designed to
operate with a+4 dBu signal when the level knob is at the center position. Thump
loudspeakers may accept up to a +20 dBu signal by turning down the level know
Mic/Line Combo Input: The input on the Thump12 powered loudspeaker is
a combo jack that may accept balanced/unbalanced XLR and 1/4" TRS/TS
connections. The input may handle anything from a microphone to a line-level
signal such as from a mixer.
XLR Thru Output: This is a male XLR-type connector that produces
exactly the same signal that is connected to the input jacks. Use it to
daisy-chain several Thump series loudspeaker together off the same signal
Overload Indicator: The OL (overload) LED indicator illuminates red
when the amplifier in the Thump12 loudspeaker is near the clipping point. It is
ok if the OL LED blinks occasionally, because this means that the transient
peaks are just reaching the maximum output of the amplifier and your getting the
most out of the loudspeaker.
Note: If the OL LED is blinking frequently or continuously, turn down the
level control on the Thump12 loudspeaker or turn down the signal at its source
until the OL LED only blinks occasionally or not at all.
Protection Circuitry: Each driver has its own transparent
compression circuit, which helps protect them from damaging transient peaks. An
over-excursion filter, inserted just before the low frequency amplifier,
protects the woofer from bottoming-out when the low-end is driven to the
maximum. Separate thermal switches activate and shut down the high and/or low
frequency amplifiers until they cool down. These safeguards ensure long life and
great-sounding loudspeakers you can always count on.
Mounting Options: Thump series loudspeakers are designed to sit on the
floor or stage. They may also be pole-mounted via the built-in socket on the
bottom of the cabinet (pole mount or tripod mount sold separately). They are not
designed to be suspended.
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