User manual RUSSOUND SDB
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Manual abstract: user guide RUSSOUND SDB
Detailed instructions for use are in the User's Guide.
[. . . ] For example, you can choose to listen to jazz music in a couple of rooms and classical music in all the others. Each room has its own input selector, volume control and on/off switch, located on the front of the unit. The SDB speaker selectors work with all speakers rated from 4 to 8 ohms, and amplifiers rated for 4 to 8 ohm loads.
2. [. . . ] Russound SDB Speaker Selectors autoformers can be set to impedance-matching settings of 2X, 4X or 8X.
1. The amplifier's minimum impedance is usually found following Wattage and Frequency Response in the amplifier's specification page of its manual. It may also be listed on the back panel of the amplifier near the speaker terminals. Identify the correct impedance-matching chart below according to your amplifier's minimum impedance: either for a 4 ohm amplifier or an 8 ohm amplifier. Determine the impedance for each pair of speakers by referring to its manual. Follow the appropriate row and column to determine jumper settings.
Impedance Matching For 4 Ohm Amplifiers 8 Ohm Pairs
0 1 2 3 4 5 6 7 8 0 1X 2X 4X 4X 8X 8X 8X 8X 1 1X 2X 4X 4X 8X 8X 8X 8X 2 1X 2X 4X 4X 8X 8X 8X 8X 3 2X 4X 4X 8X 8X 8X 8X 4 2X 4X 4X 8X 8X 8X 8X 5 4X 4X 8X 8X 8X 8X 6 4X 4X 8X 8X 8X 8X 7 4X 8X 8X 8X 8X 8 4X 8X 8X 8X 8X
Impedance Matching For 8 Ohm Amplifiers 8 Ohm Pairs
0 1 2 3 4 0 2X 4X 8X 8X
4. Setting System Volume
It is important to properly adjust an impedance-matching system to avoid distortion or DC clipping (DC voltage will be produced from an amplifier that is overworked or that has an improper load). These can cause an amplifier/receiver to go into protection, and can cause autoformers on volume controls to heat up, damaging system components. To set up the system, the amplifier/receiver volume should be at its lowest setting, and the selector volume control should be at the highest setting. Slowly adjust the amplifier/receiver volume to a level that is acceptable for the amplifier to produce without clipping.
5. Operation
To operate the SDB speaker selector, simply turn on the amplifiers and select a source for each amplifier. At the speaker selector, turn on the 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 allows operation of any combination of speakers selected to either amplifier A or B.
2
4 Ohm Pairs
4 Ohm Pairs
9 8X 8X 8X 8X
10 8X 8X 8X 8X
11 8X 8X 8X
12 13 14 15 16 8X 8X 8X 8X 8X 8X 8X 8X 8X
1 1X 4X 8X 8X
2345678 2X 4X 4X 8X 8X 8X 8X 4X 8X 8X 8X 8X 8X 8X 8X 8X
Speakers
SDB-6. 1 (back)
MODEL SDB-6. 1
SPEAKER 6 L+ L- R- R+
SPEAKER 5 L+ L- R- R+
SPEAKER 4 L+ L- R- R+
SPEAKER 3 L+ L- R- R+
SPEAKER 2 L+ L- R- R+
SPEAKER 1 L+ L- R- R+
AMP B L+ L- R- R+
AMP A L+ L- R- R+
NEWMARKET, NH
MADE IN USA
Modular Snap Connector Wiring Order
WHITE -- L+ (left channel positive) GREEN -- L- (left channel negative) BLACK -- R- (right channel negative) RED -- R+ (right channel positive)
INPUT L+ L- R- R+ OUTPUT L+ L- R- R+
RUSSOUND LFP-1
To second Amplifier
LFP-1 (Optional) Use only with amplifiers whose frequency range extends BELOW 20Hz
Modular Snap Connector (detail)
ON 1
B
ON
B
VOLUME 2 ON / OFF ON B AMP/ RECEIVER B
AP-48
Amplifier
AUDIO AMPLIFIER
2
OFF
A
AMP/ RECEIVER A
POWER
SDB Series Speaker Selector Front Detail of dual-source speaker control
Connection Diagram for Russound SDB Series Dual-Source Speaker Selectors (Not to scale)
3
6. Specifications
SDB-2. 1 Power : 100 watts per channel RMS continuous 200 watts per channel average 300 watts per channel peak 42 dB attenuation, 12 positions Russound Ultra-MatchTM Autoformers up to 14 gauge wire 8 1/2" W x 3" H x 6 1/4" D 4 lb 150 W per channel RMS continuous 300 W per channel average 450 W per channel peak 42 dB attenuation, 12 positions Russound Ultra-MatchTM Autoformers up to 14 gauge wire 17" W x 3" H x 6 1/4" D 10 lb SDB-4. 1 Power : 200 W per channel RMS continuous 400 W per channel average 600 W per channel peak 42 dB attenuation, 12 positions Russound Ultra-MatchTM Autoformers up to 14 gauge wire 17" W x 3" H x 6 1/4" D 9 lb
Volume Control: Impedance Matching: Wire Size: Dimensions: Weight: SDB-6. 1 Power :
Volume Control: Impedance Matching: Wire Size: Dimensions: Weight:
Volume Control: Impedance Matching: Wire Size: Dimensions: Weight:
7. Warranty
The Russound SDB Series is fully guaranteed for Ten (10) years from the date of purchase against all defects in materials and workmanship. [. . . ] Be sure to pack in a corrugated container with at least 3 inches of resilient material to protect the unit from damage in transit. Russound sells product only through authorized Dealers and Distributors to ensure that customers obtain proper support and service. Any Russound product purchased from an unauthorized dealer or other source, including retailers, mail order sellers and online sellers will not be honored or serviced under existing Russound warranty policy. [. . . ]
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