9
main
speaker
tuner
out
speaker
impedance
8Ω 4Ω 2Ω
line out
external
speaker
K
L
M
N
O
SUNN 300T REAR PANEL, CONT.
K. LINE OUT - These transformer balanced, XLR
male and 1/4 inch, tip-ring-sleeve, line level output
jacks are designed to feed the 300T’s signal to an
external power amplifier or main house mixer. The
signal from these output jacks include all effects and
tone shaping done by the 300T. The output of this
jack also includes a speaker emulation circuit.
L. TUNER OUT - This 1/4 inch, unbalanced, TS
output jack is designed to send your bass guitar's
signal to your tuning device (not included).
M. SPEAKER IMPEDANCE - This switch allows the
selection of different impedance loads for your
loudspeaker enclosure(s). Make sure to match the
total speaker’s load impedance to the load
impedance selector switch setting. Failure to do so
may result in your 300T being damaged by using an
improper impedance load.
N. MAIN SPEAKER JACK - This is the main plug-in
connection for your speaker enclosure and should
always be used as the primary connection. If your
300T’s power and standby switches are in their on
positions, make sure a load of at least 2Ω is present.
Failure to do so may result in your 300T being
damaged by using an improper impedance load. As
a rule of thumb, ALWAYS connect or disconnect any
speaker enclosure to your 300T with the power off.
O. EXTERNAL SPEAKER JACK - Plug-in
connection for an additional speaker enclosure. This
jack is wired in parallel with the main speaker jack
and must ONLY be used in conjunction with the main
speaker jack. If this jack is used without the main
speaker jack, no sound will be produced.
Speaker Cabinets
1 8Ω Cabinet
2 8Ω Cabinets
1 4Ω Cabinet
2 4Ω Cabinets
4Ω
LoadΩ
2Ω
4Ω
8Ω
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