Mackie product. 10. Object and Liquid Entry — Care should be taken so that objects do not fall into and liquids are not spilled into this Mackie product. 11. Damage Requiring Service — This Mackie product should be serviced only by qualified service personnel when: A.
QUICK START INSTALLATION If you connect lower impedance speakers, the amplifier may overheat and shutdown. DO NOT BLOCK THE VENTILATION PORTS. The M•800 draws its ventilation air in from the front and out through the side panels. It needs plenty of fresh air to stay cool. CONNECTIONS AND SETTINGS 1.
M•800 LIMITED WARRANTY ... 27 PRODUCT REGISTRATION CARD Attached to back cover www.mackie.com Don’t forget to visit our website: for more information about this and other Mackie products. ABOUT THIS MANUAL APPLICATION DIAGRAMS Mackie’s gang of oppressed illustrator droids have created easy-to-understand diagrams of popular studio and live-sound setups.
FEATURE DESCRIPTIONS LET’S TWIST A GAIN GAIN/dB These are completely independent volume controls for each channel. Instead of having an arbitary scale, they are carefully calibrated: • The inner ring graphic is labeled in dB, though this indicates the amplifier’s voltage gain, think of it as increasing decibels from off to 28.
METERS The meters indicate the output level in decibels referenced to the clipping point of the amplifier. The top LED is labeled OL (short for Overload). If this comes on, the – amplifier will start to dis- – tort, and the audio signals –...
If you’re using low imped- ance loads at high power levels, we recommend that you use the binding post speaker outputs rather than the 1/4" TS jacks. Al- though 1/4" jacks and plugs are convenient and easy to use, they are not designed to handle high-level currents.
AIR will breathe life into your mix, making cymbals brighter and vocals silkier. Speaking of Mackie SR consoles: If you use the AIR feature on an SR console as well as the AIR feature just described on the M•800, you may be overdoing it.
LIMITER LIMITER ON (TYPICAL). This is the normal configuration with protective limiting. LIMITER OFF is without protective limiting. The limiter is not designed to alter your sound — it’s just there to protect your speakers from the effects of clipping. Its effect is virtually transparent, meaning you probably won’t even notice any audible difference.
GENERAL PRECAUTIONS RACK MOUNTING The M•800 amp requires two rack space units (2U = 3.5"). It also requires 16.25" depth inside the rack, including the rear supports. When designing your rack, put the heavier items at the bottom and the lighter items to- ward the top.
(mixing console, equalizer, etc.) and the balanced inputs to the amplifier. If you’re using the unbalanced inputs, use a high-quality 2-conductor shielded cable. Your Mackie Dealer can recommend a suitable cable for your application. OUTPUT WIRING Use heavy gauge, stranded wire for connect- ing speakers to the M•800 amplifier’s...
Troubleshooting section. Doing so might save you from the deprivation of your Mackie amplifier and the associated suffering. Of all Mackie products returned for service (which is hardly any at all), roughly 50% are coded “CND”...
This is very important. When you call for the RA number, please let Tech Support know if you need new packaging. Mackie is not responsible for any damage that occurs due to non-factory packaging. 5. Include a legible note stating your name, shipping address (no P.O.
APPENDIX B: Technical Information SPEAKER IMPEDANCES A speaker’s impedance varies with fre- quency. For example, it may be 4 ohms at 500Hz, and 6 ohms at 120Hz. What you need to know is the average (or nominal) impedance across the speaker’s frequency range. This will be printed somewhere on the cabinet, or in the specification section of the missing manual.
M•800 SPECIFICATIONS Maximum Power: 175 watts per channel into 8 ohms 275 watts per channel into 4 ohms 400 watts per channel into 2 ohms 550 watts into 8 ohms bridged 800 watts into 4 ohms bridged Note: Power ratings are specified at 120VAC line voltages. The M•800 power amplifier draws large amounts of cur- rent from the AC line with continuous sine wave testing.
Page 24
“Mackie,” “The Running Man,” and “FR Series” are trade- marks or registered trademarks of Mackie Designs Inc. All other brand names mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.
The pas- sive crossover adds reactance to the load that FR SERIES POWER AMPLIFIER (STEREO MODE) CH 1 FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) CH 2 FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) FROM SIGNAL SOURCE (MACKIE MIXING CONSOLE) TO HIGH-FREQUENCY...
B. Failure to return the card will not void the 3-year warranty. C. Service and repairs of Mackie products are to be performed only at the factory (see D below) OR at an Authorized Mackie Service Center (see E below).