Rotel RB-1091 Troubleshooting Specifications, Front Panel Power Indicator Is, Not Lit, No Sound

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RB-1091Mono Power Amplifier

8

Troubleshooting

Specifications

 

 

 

Most difficulties in audio systems are the result of

 

 

 

 

poor or wrong connections, or improper control

Power Configurations

1 x 500 Watts

settings. If you encounter problems, isolate the

Watts/Channel

500 watts, with 20KHz filter, 8 ohm load,

area of the difficulty, check the control settings,

 

20-20 kHz, 0.03% THD

determine the cause of the fault and make the

Total Harmonic Distortion (20Hz-20kHz, 8 ohms)

 

 

 

necessary changes. If you are unable to get

Continuous Rated Power

< 0.03%

 

 

sound from the RB-1091, refer to the sugges-

One-Half Rated Power

< 0.03%

 

 

tions for the following conditions:

One Watt per Channel

< 0.03%

 

 

Front Panel Power Indicator Is

Power Output (4 Ohms, 0.09% THD)

1000 watts

 

 

Output Peak Current

40A

 

 

Not Lit

Intermodulation Distortion 60 Hz:7 kHz, 4:1

< 0.03%

 

 

No main power to the RB-1091. Check AC

Damping Factor (8 ohms)

400

 

 

power connections at the amplifier and the

Amp Gain

27.2dB

 

 

AC outlet. Check the front panel power switch.

Input Sensitivity/Impedance

2.2 V / 11.1 k ohms

Make sure that it is set to the ON position. If

Frequency Response

10 - 40 KHz (±3dB)

using 12V trigger power-on, make sure that

Signal to Noise Ratio (IHF A)

118 dB

 

 

a trigger signal is present at rear panel 12V

Power Requirements

 

 

 

TRIG IN jack.

USA

120 Volts, 60 Hz

No Sound

Europe

230 Volts, 50 Hz

Power Consumption

300 Watts

 

 

If the amp is getting AC power, but is producing

 

34 Watts - Idling

no sound, check the PROTECTION INDICATOR

 

3 Watts - Standby

on the front panel. If lit, see below. If not, check

Dimensions (W x H x D)

432 x 92 x 407 mm

all of your connections and control settings on

 

171/ x 35/ x 161/ in

associated components. Make sure that your

 

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Panel Height (for rack mounting)

80 mm, 31/

in

input connections and speaker connections

 

 

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Weight (net)

7.8 kg, 17.2 lb.

match your system configuration.

Protection Indicator Is Lit

The front panel PROTECTION INDICATOR will light when the RB-1091 protection circuits have shut off the amplifier. Typically, this oc- curs only when the amplifier has overheated, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Then push the front panel power switch in and out to reset the protection devices. If the problem is not corrected or reoccurs, there is a problem with the system or the amplifier itself.

All specifications are accurate at the time of printing.

Rotel reserves the right to make improvements without notice.

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Contents RB-1091 Important Safety Information English RB-1091Mono Power Amplifier Getting Started ContentsAbout Rotel Protection Indicators AC Power InputPower Switch Indicator Turn On/Off Mode SelectorSpeaker Wire Selection Conventional Speaker Wire ConnectionsSpeaker Selection Polarity and PhasingTroubleshooting Specifications Front Panel Power Indicator IsProtection Indicator Is Lit Not LitPage USA

RB-1091 specifications

The Rotel RB-1091 is a high-performance power amplifier designed to deliver exceptional sound quality for audiophiles and home theater enthusiasts alike. Renowned for its robust build and exceptional audio fidelity, the RB-1091 is a critical component in a high-end audio system, ensuring that every note is reproduced with clarity and precision.

One of the standout features of the RB-1091 is its powerful output capability. It is capable of delivering 200 watts per channel into 8 ohms and 400 watts per channel into 4 ohms, making it suitable for driving a variety of speaker types, including larger floor-standing models. This power provides ample headroom, allowing the amplifier to handle dynamic musical passages without distortion or clipping, ensuring an immersive listening experience.

The RB-1091 utilizes Class AB amplification technology, which combines the efficiency of Class B designs with the linearity of Class A amplifiers. This hybrid approach results in improved sonic performance, with refined details and reduced distortion, noticeable even at higher volumes. The design promotes efficient operation and cooler performance, making it a reliable choice for long listening sessions.

Another key characteristic of the RB-1091 is its dual-mono construction. This design philosophy separates the left and right channels, minimizing crosstalk and allowing for a more cohesive soundstage. By providing dedicated power supplies and amplification stages for each channel, the RB-1091 ensures that audio signals remain isolated and clear, resulting in a more detailed presentation of music and film soundtracks.

To enhance its versatility, the RB-1091 incorporates a variety of inputs, including balanced XLR and unbalanced RCA connections, allowing seamless integration with various preamplifiers and home theater receivers. Additionally, the amplifier features a robust chassis designed to minimize interference and resonance, ensuring that it performs optimally regardless of the listening environment.

In summary, the Rotel RB-1091 stands out in the realm of high-fidelity audio with its potent power output, class-leading amplification technology, and high-quality construction. Whether powering a two-channel stereo setup or integrated into a multi-channel home theater system, the RB-1091's blend of performance and reliability makes it a superb choice for anyone seeking to elevate their audio experience to new heights. With its ability to deliver breathtaking sound with clarity and impact, the RB-1091 remains a venerable option for discerning listeners.