TM
FAST RECOVERY 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" TS output jacks
M•1400 —
Speakon® output jacks
■6 LED metering including 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
MORE INFORMATION
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-low- frequency 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
■Toroidal 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•1200 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 1200 watts into 4Ω.
The M•1400 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 1260 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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