Speaker A Speaker B - Mesa/Boogie Three Channel Dual & Triple Rectifier Solo Heads Owner's Manual

SPEAKER IMPEDANCE MATCHING & HOOK-UP GUIDE:
PARALLEL:
When wiring in parallel, the resistance of the speakers decreases. Two 8 ohm speakers wired in (hooked-up) Parallel
results in a 4 ohm load. It's easy to calculate the effect of a resistive load when all the speakers are all the same resistance. It is really
not suggested to wire different resistive load values in Parallel (8 and 4, 16 and 8 etc.) The formula for figuring the total impedance in
Parallel is the multiplication of the two loads divided by the sum of the two loads - i.e. putting two 8 ohm speakers in Parallel results
in a 4 ohm load. Connect the Positive side of Speaker A to the Positive side of Speaker B - Connect the Negative side of Speaker
A to the Negative side of Speaker B.
Speaker A
8 Ohms
COMBINATION OF SERIES & PARALLEL:
you maintain a consistent load with multiple speakers. The importance of this is more evident when you have more than one cabinet
All 4 Spkrs. are 8 Ohms
SPEAKER A
SPEAKER C
POSITIVE
Total Load = 4 Ohms
This is really just two sets of Series wired speakers connected in Parallel. This is how
SPEAKER B
SPEAKER D
NEGATIVE
(Continued)
to connect to your amplifier. This is when you need to figure
out the loads and how to wire them up without applying too
low of a resistance on the amplifier.
Simply connect the Positive side of Speaker A to the Positive
side of Speaker C.
Connect the Negative side of Speaker A to the Positive side
of Speaker B. Next, connect the Negative side of Speaker
C to the Positive side of Speaker D.
And lastly, connect the Negative side of Speaker B to the
Negative side of Speaker D.
4 Eight ( 8 ) Ohm speakers wired in Series Parallel = a Total
Load of 8 Ohms.
PAGE 30
Speaker B
8 Ohms
NEGATIVE
POSITIVE