Russound SDB-2.1 Manuale utente
A/V DISTRIBUTION & CONTROL SYSTEMS
SDB-2.1 / 4.1 / 6.1
Instruction Manual
SDB-6.1
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SDB-4.1
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SDB-2.1
SDB Series
Dual-Source
Speaker Selectors
1. Description
The SDB-2.1, SDB-4.1 and the SDB-6.1 are high-power,
dual-source, autoformer-based speaker selectors with indi-
vidual volume controls for 2, 4 or 6 pair of speakers. Dual-
source operation means two different amplifiers / receivers
can drive selected speakers simultaneously. For example,
you can choose to listen to jazz in a couple of rooms and
classical in all the others. Each speaker pair has its own input selector, volume control and on / off switch. The
SDB speaker selectors work with all speakers rated 4 ohms and above.
2. Connections
All SDB models have heavy-duty, removable screw connectors that accept wire up to 12 gauge wire. Connect
the amplifier's output to the AMP A and AMP B connections on the SDB, being sure to follow polarity from the
output of the amplifier to the input of the speaker selector (+ to +, - to -). Connect the speakers to the output of
the speaker selector, again being sure to follow the polarity.
3. Setting the Impedance
The impedance of the autoformers in the SDB Speaker Selectors is set at the factory to be proper for most appli-
cations, however, for certain applications, the setting must be changed. This can easily be done by removing the
cover of the unit and re-positioning the jumpers on the autoformers to the necessary impedance-matching
setting.
Russound SDB Speaker Selectors autoformers can be set to impedance-matching settings of 2X, 4X or 8X. The
SDB-2.1 comes set at 2X; the SDB-4.1 at 4X; and the SDB-6.1 at 8X.
4. Operation
To operate the SDB speaker selector, simply turn on your amplifiers and select a source for each amplifier. At the
speaker selector, turn on your selected pair of speakers and select AMP A or AMP B. Set the volume by rotating
the control clockwise to increase volume or counter-clockwise to decrease volume. The SDB speaker selectors
will allow you to operate any combination of speakers selected to amplifier A or B.
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MODEL SDB-6.1
SPEAKER 6
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SPEAKER 5
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SPEAKER 4
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SPEAKER 3
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SPEAKER 2
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SPEAKER 1
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AMP B
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AMP A
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NEWMARKET, NH MADE INUSA
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L+ L- R- R+
POWER
AP-48
POWER
AP-48
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OFF A
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AMP/ RECEIVER B
VOLUME
ON / OFF
AMP/ RECEIVER A
3
5. Technical Information:
Power SDB-2.1: 100 watts per channel RMS continuous
200 watts per channel average
300 watts per channel peak
Power SDB-4.1: 200 watts per channel RMS continuous
400 watts per channel average
600 watts per channel peak
Power SDB-6.1: 150 watts per channel RMS continuous
300 watts per channel average
450 watts per channel peak
Volume Control: 42 dB attenuation, 12 positions
Impedance Matching: Russound Ultra-Match™ Autoformers
Wire Size: up to 12 gauge wire
Dimensions SDB-2.1: 8 1/2" W x 3" H x 6 1/4" D
Dimensions SDB-4.1 & SDB-6.1: 17" W x 3" H x 6 1/4" D
Weight SDB-2.1: 4 lb
Weight SDB-4.1: 9 lb
Weight SDB-6.1: 10 lb
6. Warranty
The Russound SDB Series is fully guaranteed for Ten (10) years from the date of purchase against all defects in
materials and workmanship. During this period, Russound will replace any defective parts and correct any defect
in workmanship without charge for either parts or labor. For this warranty to apply, the unit must be installed and
used according to its written instructions. If service is necessary, it must be performed by Russound. The unit must
be returned to Russound at the owner’s expense and with prior written permission. Accidental damage and ship-
ping damage are not considered defects under the terms of the warranty. Russound assumes no responsibility for
defects resulting from abuse or servicing performed by an agency or person not specifically authorized in writing
by Russound. Damage to or destruction of components due to improper use voids the warranty. In these cases,
the repair will be made at the owner’s expense. To return for repairs, the unit must be shipped to Russound at the
owner’s expense, along with a note explaining the nature of the service required. Be sure to pack in a corrugated
container with at least 3 inches of resilient material to protect the unit from damage in transit.
or call us at: (603) 659-5170
For information on more of the great products that Russound has to offer, check out our website at
4
A/V DISTRIBUTION & CONTROL SYSTEMS
5 Forbes Rd. Newmarket, NH 03857
☎ 603.659.5170 •Fax 603.659.5388
e-mail: [email protected]
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