Rear Panel - Fender Rumble 40 Owner's Manual

Thanks for buying a Fender® Rumble™ series bass amplifier. Fender bass
amplifiers are legendary for providing thick, natural and balanced tone
that sits fat in your live or studio mix. Rumble amps are designed by and
for bass players, and we take great pride in putting full-featured, easy-
to-operate amps of the highest quality in the hands of working and
aspiring musicians everywhere.
The Rumble family can take you from home rehearsal all the way to the
1,000-seat concert and beyond. Wherever your musical path takes you,
Rumble bass amps help get you there!
BRIGHT
BRIGHT
GAIN
INPUT GAIN
CONTOUR
CONTOUR
VINTAGE
VINTAGE
A. INPUT — Plug your passive or active bass in here. If your bass is too
hot and causes unwanted distortion, try turning down the GAIN
control.
B. GAIN — Adjusts the incoming signal level from your bass, optimiz-
ing the preamp signal level for a variety of basses.

The GAIN control will also affect the level of distortion/compres-
sion if VINTAGE and/or OVERDRIVE are selected.
C. • BRIGHT — Adds presence and shimmer in the upper frequencies.
• CONTOUR — Mid-frequency cut, combined with low-and- high-
frequency boosts that offer a fat pleasing tone, useful for slap style
playing, low-volume practice, or in combination with OVERDRIVE.
• VINTAGE — Creates a dark tone rich with harmonics and some
natural compression.
D. DRIVE — When the OVERDRIVE circuit is enabled, DRIVE controls
the amount of harmonically rich preamp distortion.
E. OVERDRIVE ON — Press this button to enable the OVERDRIVE cir-
cuit and corresponding controls.
F. LEVEL — When the OVERDRIVE circuit is enabled, LEVEL controls
the volume of the OVERDRIVE. Use this to balance volume levels be-
tween your clean and overdrive tones.
G. 4-BAND EQUALIZATION — Used to adjust overall tone and to com-
pensate for room acoustics. Remember, what sounds harsh in one
room may have just the right edge in another room.
H. MASTER — The MASTER controls the overall volume of the amp.

Rumble amps are equipped with Fender's Delta-Comp™ lim-
iter. Setting the MASTER higher or playing more aggressively will
result in more compression and sustain!
I. POWER INDICATOR — Illuminates when power is switched on to
the unit.
8
DRIVE LEVEL BASS
DRIVE LEVEL BASS
OVERDRIVE OVERDRIVE
ON
OFF
POWER
/ / /
Please visit the individual product page at:
rumble
for full warranty details and instructions on how to get your
amplifier serviced under warranty in U.S.A. and Canada; see your
Fender distributor for warranty details in other countries.
PRODUCT REGISTRATION — Please visit:
LOW MID HIGH MID
LOW MID HIGH MID
EQUALIZATION
EQUALIZATION
J. POWER SWITCH — Press to the "ON" position to turn the
unit on. Press to the "OFF" position to turn the unit off.
K. IEC POWER CORD SOCKET — Connect the included
power cord to a grounded A/C electrical outlet in ac-
cordance with the voltage and frequency ratings
specified on the rear panel of your amplifier.
L. PARALLEL SPEAKER OUTPUTS (HEAD ONLY) — Connect speaker
cabinets here. The power rating of the external cabinets should
meet or exceed the rating listed on the amplifier. The MINIMUM im-
pedance of all connected speaker cabinets is 4Ω. The following list
shows some acceptable parallel speaker cabinet combinations:
SPEAKER COMBINATIONS
4Ω
8Ω
8Ω + 8Ω
EFFECTS
SEND
8Ω + 16Ω
8Ω + 16Ω +16Ω
INPUT POWER
16Ω + 16Ω
V Hz
______W
16Ω + 16Ω + 16Ω + 16Ω
IMPORTANT NOTE: Rumble 200/500 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.
( + )
www.fender.com/series/
www.fender.com/product-registration
TREBLE MASTER
TREBLE MASTER

Rear Panel

ON
OFF
POWER
TOTAL IMPEDANCE
4Ω
8Ω
4Ω
8 W
Ω min. ____
RETURN
5.33Ω
4Ω
EXT. SPKR
8Ω
4Ω
( - )
Insulation
ON
OFF
POWER
INPUT POWER
V Hz
______W
PARALLEL
SPEAKER
OUTPUTS
AUX
______W
min. TOTAL
4 Ω