Output Wiring - Mackie M-2000 Owner's Manual

Unbalanced TS (tip-sleeve) signals can be accom-
modated via the combination jack. Make sure the cord
terminates with a TS plug (like a guitar plug), or if it's a
TRS plug (like a headphone plug), make sure the ring is
tied to the shield, preferably at the source.
Unbalanced TS Plug
The screw terminal connections are clearly marked,
indicating "+", "–", and GND. You can use bare wire to
wrap around the screws, or spade lugs connected to the
wires.
CHANNEL 1
Balanced Screw Terminal Connection
If connecting an unbalanced line-level input to the
screw terminals, connect a jumper between the "–" and
GND screws.
CHANNEL 1
Unbalanced Screw Terminal Connection
18
M-Series
SLEEVE SLEEVE
TIP
TIP
SLEEVE
CHANNEL 2
GND GND
JUMPER
CHANNEL 2
GND GND

Output Wiring

Use heavy gauge, stranded wire for connecting speak-
ers to the M-Series amplifier's SPEAKER OUTPUT
terminals. As the distance between the amplifier and
TIP
the speakers increases, the thickness of the wire should
also increase. Speaker wire has resistance, and when
electricity passes through a resistor, power is lost. The
thicker the wire, the less resistance it offers, and the
more power actually gets to the speakers.
The thickness of wire is rated in gauges. Use the chart
below to determine the correct gauge of wire to use
according to the distance between the speakers and the
amplifier, and the impedance of the load the amplifier
is driving. This ensures that the power lost across the
speaker wire is less than 0.5 dB.
Wire Length
Up to 25 ft.
Up to 40 ft.
Up to 60 ft.
Up to 100 ft.
Up to 150 ft.
Up to 250 ft.
Stereo and Mono Modes
Binding Posts
When using the binding post outputs in stereo or
mono modes, you can terminate your speaker cables
with single or double banana plugs, spade lugs, or leave
them unterminated (bare wires): unscrew the amp's
binding posts enough to reveal the holes on their sides,
then insert your stripped wires (stripped about 3/8"
back) into the holes and retighten the posts (finger
tight is fine). Be careful that no runaway strands touch
the chassis or other terminal.
Load Gauge of
Impedance Wire
2Ω 14 gauge
4Ω 16 gauge
8Ω 18 gauge
2Ω 12 gauge
4Ω 14 gauge
8Ω 18 gauge
2Ω 10 gauge
4Ω 12 gauge
8Ω 16 gauge
2Ω 8 gauge
4Ω 10 gauge
8Ω 14 gauge
2Ω 6 gauge
4Ω 8 gauge
8Ω 12 gauge
2Ω 4 gauge
4Ω 6 gauge
8Ω 10 gauge