Rear Panel - Fender Bassman 500 Manual De Instrucciones

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O.
POWER SWITCH — Press to the "ON" position to switch the
amplifier on. Press to the "OFF" position to switch the amplifier off.
P.
IEC POWER INLET — Connect to a grounded outlet in accordance
with the INPUT POWER voltage and frequency specified next to the
power inlet on your amplifier.
Q.
PARALLEL SPEAKER OUTPUTS — Connect speaker cabinets here.
Bassman 500/800 amps are equipped with combination speaker
output jacks which allow you to use Speakon® or 1/4" (6.3 mm)
speaker cables.
The power rating of the external cabinets should meet or exceed
the rating listed on the amplifier. The MINIMUM impedance of all
connected speaker cabinets is 4Ω. The following list shows some ac-
ceptable parallel speaker cabinet combinations:
SPEAKER COMBINATIONS
8Ω + 8Ω
8Ω + 16Ω
8Ω + 16Ω +16Ω
16Ω + 16Ω
16Ω + 16Ω + 16Ω + 16Ω
IMPORTANT NOTE: Bassman 500/800 amplifiers include a digital power
amplifier that operates in bridge mode. Both the tip (+) and sleeve (–)
have voltage present, so never ground either the tip (+) or sleeve (–) of the
speaker cable. Always make connections with the power turned off, and
use care when making connections with cables that have non-insulated
(bare metal) type plugs. Using speaker cables with insulated bodies is
preferred, but not required.
( + )
( - )
Bassman 500/800 amplifiers are equipped with variable speed fan cool-
ing and thermal shutdown protection. The fan will start at a low speed
and increase as you play harder. Leave at least 6 inches of clearance in
the front and rear of your amplifier and and do not block the vents
underneath the electronics chassis with cables or other objects
stored in the cabinet. If the amplifier vents are blocked, or it is used
in an extremely hot environment, the class-D amplifier may overheat
and enter thermal protection causing the PROTECT LED to illuminate

Rear Panel

TOTAL IMPEDANCE
5.33Ω
Insulation
Thermal Performance & Protection
R.
FOOTSWITCH — Plug the included footswitch in here to enable
remote channel switching. When the footswitch is connected, the
front panel CHANNEL SELECT switch {D} is disabled, but the channel
indicator LEDs will operate normally.
S.
TUNER — Connect your instrument tuner here.
T.
PREAMP OUT / POWER AMP IN — Multi-functional input/output
jacks that can be used in a variety of configurations:
1) Effects Loop — Connect PREAMP OUTPUT to the input of your
effects device and connect PWR AMP INPUT to the output jack
of your effects device. The signal level here is nominally line
level (+4dBu) and is most suitable for professional rack-style
effects. MASTER {K} affects the send level, and the effects
device controls the return level.
2) Multiple Bassman® Amps — Connect PREAMP OUTPUT on the
primary unit to POWER AMP IN on an auxiliary unit. The knobs
on the primary unit control the auxiliary unit.
U.
LEVEL — Use to adjust the output level of the XLR OUT jack {X} to
accommodate the input sensitivities of outboard sound equipment.
V.
PRE / POST — Select "POST" to include all preamp signal
adjustments {B–C or E–J} in the XLR OUT signal. Select "PRE" for a
DIRECT tube driven signal, unaffected by preamp controls.
W. GROUND / LIFT — Select "LIFT" to disconnect the ground
connection on the XLR OUT jack which may reduce hum or line
noise in some situations. Normally leave this button out, in the
"GND" (grounded) position.
X.
XLR OUT — A balanced, line level output for connection to mixing
consoles and recording equipment. Disconnect speakers {Q} for
silent recording.
and the speaker output to mute temporarily. In the event of an output
short circuit or over current situation (i.e. operating below minimum
impedance) the class-D amplifier will enter protection causing the
PROTECT LED to illuminate and the speaker output to mute temporarily.
The class-D amplifier will automatically resume operation within a few
seconds, when it has returned to a safe operating temperature and the
fault has been removed.
9

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