TM
F A S T REC O VER Y SERIES HIGH CURRENT POWER AMPLIFIERS
The world is full of amplifiers
that do one thing – amplify
audio signals. But at Mackie
Designs, we’ve always put
out the extra effort to provide
more quality and more
features than our competitors
while maintaining a comparable (or lower) price.
The FR Series™ power
amplifiers are designed to
perform reliably under the
most adverse conditions,
and we’ve added a bundle
of extra features, so you
don’t have to put out the
extra bucks to buy a bunch
of add-ons or plug-ins to
make your sound system
do what you want it to do.
Meticulous Detail
Perhaps the most important aspect of the FR Series
amplifiers is the attention
to detail in the design of
the electronic architecture.
We have incorporated a
number of unique properties
including Fast Recovery,
sustained high-current output
capability, high voltage and
current slew rate, and defeatable clipping eliminator, to
ensure that the output of
the amplifier is virtually
distortion-free.
FEATURES
■ Fast Recovery design
for improved transient
response and recovery
from clipping
■ Rack-mountable (2U)
with rear support rails
for extra support
■ Separate left and right
detented gain controls,
calibrated in both dB
and volts
■ Balanced XLR and 1/4"
TRS input jacks
■ Balanced XLR thru jacks
■ Heavy-duty binding post
output jacks in parallel
with:
M•1200 —
1/ 4" T S output jacks
M•1400 —
Speakon® output jacks
■ 6 LED metering includ-
ing Signal Present and
Overload
■ Separate L/R Protect
LEDs indicate the
following protection
conditions:
1) Automatic turn-on
delay to prevent potentially damaging thumps
and pops from reaching
your speakers
2) Short-circuit protect
with separate L/R
indicating LEDs
3) Thermal protect with
combined Ch1 and 2 Cold
and Hot indicating LEDs
■ SCR Crowbar DC offset
protect
M•1200/M•1400
ARCHITECTS &
ENGINEERS
SPECIFICATIONS
■
“IN YOUR FACE”
SOUND REINFORCEMENT
& RECORDING BROCHURE
■ Low-cut filter with
variable frequency
control (Off – 170Hz)
■ Subsonic stabilization
eliminates ultra-lowfrequency noise caused
by microphone handling, stage rumble
■ Constant directivity horn
compensation with
variable high-frequency
boost control (2kHz to
6kHz)
■ Amp Mode switch for
Stereo, Mono, or Bridge
modes
■ Limiter to eliminate
clipping in both channels
■ Subwoofer mode switch
with dual-frequency select
(63Hz/125Hz)
■ T-Design Constant
Gradient Cooling Tunnel
uses two short tunnels
instead of one long
tunnel for improved
cooling efficiency and
output device reliability
■ Dual-speed cooling fan
■ T oroidal transformer for
reduced EMI emissions
®
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What is Fast Recovery?
Fast Recovery refers to the
amplifier’s ability to recover
after being over-driven into
clipping. Most amplifiers’
output circuits tend to stay
“latched” in the clipping
mode, making their recovery
time relatively slow, especially
at high frequencies. Our FR
Series amplifiers incorporate
two unique circuit designs
that completely eliminate
the latching phenomena.
The first is a Baker Clamp
diode configuration, and the
second is the use of two
additional supplies that are
at a higher voltage than the
main supplies. Without getting too technical, the result
is no latching and instant
recovery from overdrive.
Durability. A word
Mackie lives by.
Mackie mixers are wellknown for their ability to
withstand the abuses of the
road. Most of Mackie Designs’
employees have experience
as musicians, roadies, or
sound engineers in the real
world of music entertainment
and live sound reinforcement.
We know what kind of
punishment sound equipment can be subjected to,
and our engineers know
how to design equipment
that can take it.
Pro features even
amateurs can understand.
Mackie’s FR Series power
amplifiers were designed
with professionals – and
amateurs – in mind. These
amplifiers are great for live
sound reinforcement applications as well as studio or
broadcast control rooms.
With the ability to deliver
massive amounts of current
instantly, the FR Series amplifiers can handle powersucking subwoofers, yet
remain discriminating and
responsive when driving a
bank of delicate tweeters.
Power Output.
The M•1 2 00 is rated at
225 watts per channel into
8Ω, 400 watts per channel
into 4Ω and 600 watts per
channel into 2Ω. In bridge
mode the M•1200 is rated
at 800 watts into 8Ω and
12 00 watts into 4Ω.
The M•1 400 is rated at
250 watts per channel into
8Ω, 425 watts per channel
into 4Ω and 630 watts per
channel into 2Ω. In bridge
mode the M•1400 is rated
at 850 watts into 8Ω, and
12 60 watts into 4Ω.
Sustained ultra-low
impedance capability.
The FR Series power amplifiers are designed to drive
low impedance loads effortlessly and reliably. Most power
amplifiers have difficulty
driving anything lower than
4 ohms, but the FR Series
power amplifiers can easily
drive 2 ohm loads all day
long without breaking a sweat.
This is a result of the careful
and efficient design of the
heatsink and cooling tunnels,
which keep the output devices
running as cool as possible,
along with the virtual elimination of VI limiters, which
can cause lesser amplifiers
to distort or to shut down
completely when driving
low impedance loads.
Inputs, Input Level Controls
and Metering.
The FR Series amplifiers
are equipped with balanced,
line-level input connectors
for each channel in the form
of XLR female jacks and 1/ 4"
TRS phone jacks. In addition,
XLR male jacks are provided
as thru connections for daisychaining the input signal to
multiple amplifiers. The XLR
male thru jack is in parallel
with the XLR female jack
and the 1/4" TRS jack, and
any one can be used as an
input or thru connector.
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