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POWER 750 POWER DELIVERY CAPABILITIES (POWER RATINGS)POWER 750 POWER DELIVERY CAPABILITIES (POWER RATINGS)
After determining how the number of cabinets you wish to run affects the total operating impedance, you need to take into
account the power handling capabilities of your speaker cabinets as compared to what the Power 750 can deliver at that imped-
ance. Those ratings are as follows:
850 watts @ 2.6 ohms
750 watts @ 4 ohms
450 watts @ 8 ohms
So if you have two 8 ohm speaker cabinets, they will each get up to 375 watts of power, and more
during transient peaks. A single 4 ohm cabinet will get up to 750 watts of power. Make sure your speaker cabinets can handle
the horsepower!
This is even more crucial when running at the minimum impedance. When operating your Power 750 at 2.6 ohms, the com-
bined power handling of your 4 ohm and 8 ohm cabinet had better be at least 850 watts. To be safe, each individual cabinet
(especially the 4 ohm cabinet) should handle at least 500
watts. Don't guess or assume that your speaker cabinets can handle the power listed above - get the specs and make sure!
Also be aware that when running the Power 750 at 2.6 ohms, you are operating at the maximum
capacity of the power amplifier. If you're sending too hot a signal from your preamp, and your Power 750 Volume control is set
high as well, you may hear audible clipping of the power amp (and the +3
Red LED on the front panel should be glowing). If so, you have exceeded the maximum capacity of
the power amp. Continual clipping of the power amp section can cause damage to the power
amplifier and/or your loudspeakers.
Remember, it's always better to have a little too much power than just barely enough. If you find
yourself constantly wanting more power than the Power 750 provides, either:
a) ask your bandmates to turn down
b) ask the monitor engineer to turn you up
c) (best option) take the time to investigate getting another external power amp and/or additional speaker cabinets to supple-
ment your system
NOTE: The frequency response of the Power 750 is far greater than usually found in musical instrument amplifiers (20 Hz to 40
kHz). This was engineered in order to give the bass player the same punch and clarity on stage as found in the studio or concert
P.A. systems. Therefore, it is doubly important that you are aware of the impedance and power rating of the speakers that you
intend to use, and that they are compatible with the Power 750.
Speakers that have been overdriven are easy to detect and generally do not fall under manufacturer warranty.
SPEAKER OUTPUT JACKSSPEAKER OUTPUT JACKS
There are two 1/4" jacks and two Speakon jacks provided for the output section of the Power 750. Make sure all speakers are
properly connected BEFORE turning on the Mo' Bass whenever possible. Generally it's a bad idea to plug or unplug your speak-
ers while the unit is on.
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