R1250MC AMPLIFIER
BRIDGED OPERATION
When the amplifier is in Bridged mode operation, both the left and right channels are combined for a higher power mono output.
For bridged amplifier operation, turn off the power to the amplifier and connect an
Following the Bridge mode markings in red on the back of the amplifier: Connect the negative lead
RCA Cable from source
Left In | Right In |
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| Line In L |
| R |
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| Line In L |
| R |
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| Bridg e |
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| Bridg e |
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| Line In |
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| Line In |
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| Speak er | R+ |
| Bus In | Speak er | R+ |
| Bus In |
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| A | R- |
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| A | R- |
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| L- |
| L |
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| L+ |
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| R |
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Speak er | R+ | - | Stereo | Speak er | R+ | - | Stereo | |||
| B |
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Speaker | R- |
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| Speaker | ||
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| Bridge Mono |
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cable | Stereo mode | L- |
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| Stereo mode | L- |
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| 4? | minimum |
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| 4? minimum |
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| impedance | L+ | + |
| impedance | L+ | + |
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(+)Positive |
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| Bridge mode |
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Bridge mode |
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| 8? minimum |
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| DelayTime | 8? | minimum |
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| DelayTime |
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| impedance |
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| impedance |
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Left Speaker | Zone 2 |
| Zone 1 12V 100mA | Right Speaker |
8 ohm | 12V 100mA | 8 ohm | ||
| Out Trigger In | Out Trigger In |
THERMAL PROTECTION | PROTECTION CIRCUITRY |
All Russound amplifiers are designed with special circuit- ry to safeguard the amplifier under a thermal overload condition. Thermal protection mode can only engage when the unit has been run at high volume for extended periods of time without adequate ventilation and/or when speaker impedances are below the minimum levels for the amplifier. If this fault occurs, turn off the amplifier, and check that the speaker impedance rating is above the minimum rating. Also check for adequate ventilation around the amplifier and make adjustments if necessary. Once the unit has cooled to safe operating tempera- tures, the amplifier may be powered back on.
All Russound amplifiers are designed with special circuit- ry to safeguard the amplifier under a
The front panel LED illuminates orange when the amplifi- er is in short circuit protection. If this fault condition occurs, turn off the amplifier and check speakers for short circuit conditions when appropriate.
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