SWR Sound BASS 350 - Manual (Page 4)

SWR BASS 350 — SPECIFICATIONS
Note: All measurements were taken with a line voltage of 120VAC. All noise specifications are
“unweighted.” All voltages and watts are “RMS.” All measurements were taken with tone controls
set flat, Aural Enhancer at minimum.
POWER (minimum)
450 Watts @ 2 ohms
350 Watts @ 4 ohms
240 Watts @ 8 ohms
FREQUENCY RESPONSE (Power Amplifier)
–3dB @ 20 Hz and 40 kHz
SENSITIVITY (full output under clipping, 8 ohms load, 100 Hz)
Passive Input Jack: 38 millivolts
Active Input Jack: 60 millivolts
Power Amplifier (Effects Return Jack “in”): 5 volts
INPUT IMPEDANCE
Passive/Active Input: 800k Ohms
Active Input: 60k Ohms
Effects Return: 27k Ohms
OUTPUT IMPEDANCE
Effects Send: 100 Ohms
Tuner Send: 100 Ohms
Crossover Low and High Outs: 100 Ohms XLR
Balanced Out: .750 Ohms
SIGNAL TO NOISE RATIO: –72 dB (<10 millivolts typical)
EQUIVALENT INPUT NOISE: 9 microvolts
DIMENSIONS: 19" W x 3.5" H x 10.125" D
WEIGHT: 21 lbs.
BASS 350 — FRONT PANEL FEATURES
PASSIVE/ACTIVE INPUT JACK
This input jack is designed to accommodate both “passive” instruments, and most “active”
instruments. A passive instrument has no built-in preamp and does not use a batter y, while an
“active” bass utilizes a batter y operated preamp for gain, tone controls, or both. The Passive/
Active Input will work with all instruments having a maximum output of less than 1 volt RMS.
Some active pickups, such as EMG, Bar tolini, etc., use batteries for operation and will work per-
fectly using this input. Additionally, instruments made by Pedulla, Tobias, Sadowsky, Modulus
Graphite, etc., have active electronics that are suited for use in the Passive/Active input.
Generally speaking, tr y this input first. If you hear a small amount of distor tion and the preamp
clip LED is not activated, tr y using the Active input jack. If using the Active input does not correct
any audible distor tion, check the batter y in your bass.
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BASS 350 USER GUIDE