RC-1550 Stereo Control Amplifier

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STANDBY Switch and Indicator 1 and Remote POWER Switch E

The STANDBY switch 1 is located on the left side of the front panel. To use the RC-1550, press the STANDBY switch. The switch button will remain in its IN position and the ring around the Standby switch will light. In addition the indicators above the selected Listening input button 8 will light.

When the STANDBY switch is pushed in, you can turn the RC-1550 on, or put it in Standby mode, with the POWER button E of the RR-AT94 remote control.

When the RC-1550 is in Standby mode, pressing one of the

RR‑AT94 Input Selector buttons B turns the unit on and selects the corresponding input.

If you will not be using the RC-1550 for a long period of time, press the front panel STANDBY switch to turn it Off. The button will return to its Out position and all the front panel indicator lights will turn off.

Note: Be sure to set the Volume control to the minimum (full counterclockwise) position before you push in the STANDBY switch.

Input Signal Connections = and q

[See Figure 3.]

The RC-1550 has conventional RCA-type connectors for all inputs.

Note: To prevent loud noises that neither you nor your speakers will appreciate, make sure the system is turned off when you make any signal connections.

Line Level Inputs q

The CD, Tuner, and Aux inputs of the RC-1550 are “line level” inputs. These are for connecting the analog outputs from components such as CD players, DVD players, video disc recorders, tuners for audio or video, or VCRs.

The Left and Right channels are clearly labeled and should be connected to the corresponding channels of the source component. The Left RCA connectors are white, the Right connectors are red. Use high quality RCA cables for connecting input source components to the RC-1550. Ask your authorized Rotel dealer for advice about cables.

Phono Input = and Ground Connection -

Plug the cable from the turntable into the appropriate left and right phono inputs. If the turntable has a “ground” wire connect it to the screw terminal to the left of the Phono inputs. It will help prevent hum and noise.

Recorder Connections w

The Tape 1 and Tape 2 inputs and outputs can be connected to any record/playback device that accepts standard line level analog input and output signals. Typically that will be a conventional tape recorder.

When connecting a recorder to the RC-1550, remember that the outputs of the recorder must be connected to the tape inputs of the RC‑1550. Similarly the tape outputs of the RC-1550 must be connected to the inputs of the recorder. As with other sources be sure to connect the Left and Right channels of each device to the proper channels on the associated components. Use high quality connecting cables to prevent loss of sound quality.

Output Connections e

Most RCA-type output connectors are compatible with most power amplifiers. As always, use high quality cables and be sure to connect the Left and Right channel outputs of the RC-1550 to the correct channels of the amplifier.

Note: There are two sets of RCA outputs on the RC-1550. The second set of outputs may be used in custom system configurations to drive

a second power amplifier or to supply a signal to a special signal processor.

IR Inputs and Outputs

External Remote Input r

This 3.5 mm mini-jack (labeled EXT REM IN) receives command codes from an industry-standard infrared receivers located in the main listening room. This feature is useful when the unit is installed in a cabinet and the front-panel sensor is blocked. Consult your authorized Rotel dealer for information on external receivers and the proper wiring of a jack to fit the mini-jack receptacle.

Note: The IR signals from the EXTERNAL REMOTE IN jack can be relayed to source components using external IR emitters or hard wired connections from the IR OUT jacks.

IR Output t

The IR OUT 1 and 2 jacks send IR signals received at the EXTERNAL REM IN jack to an infrared emitter placed in front of a source component or to other Rotel components with compatible rear panel IR input connectors.

This output is used to allow IR signals to pass along IR signals from a remote control when the sensors on the source components are blocked by installation in a cabinet.

See your authorized Rotel dealer for information on IR repeater systems.

NOTE: The EXT REM IN jack located next to these jacks is for use with an external IR sensor duplicating the front panel IR sensor and located in the primary zone.

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Rotel RC-1550 Input Signal Connections = and q, Recorder Connections w, Output Connections e, IR Inputs and Outputs
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RC-1550 specifications

The Rotel RC-1550 is a high-performance stereo preamplifier that showcases the brand's commitment to audio excellence and innovation. Designed for audiophiles who demand superior sound quality, this preamplifier delivers outstanding performance and a range of features that make it stand out in the competitive audio market.

One of the defining characteristics of the RC-1550 is its robust build quality. Constructed with a rigid chassis that minimizes resonance and interference, the device ensures a clean audio signal. The component selection is equally impressive, utilizing high-quality capacitors and resistors to maintain audio integrity and clarity.

At the heart of the RC-1550 is Rotel's proprietary Class A/B amplification technology. This design approach allows for a more efficient power management system while maintaining the rich, warm tones and dynamic range that audiophiles crave. The result is an engaging listening experience with accurate sound reproduction across various genres of music.

The preamplifier features a comprehensive range of inputs and outputs, allowing for seamless integration into any audio setup. With balanced XLR inputs and outputs, as well as unbalanced RCA connections, the RC-1550 offers versatility for connecting to a wide array of audio sources. It also includes a dedicated phono stage for vinyl enthusiasts, ensuring that every nuance of a record is captured with precision.

In addition to its input options, the RC-1550 incorporates advanced digital signal processing capabilities. It supports various digital audio formats, enabling users to connect to high-resolution sources and enjoy audiophile-quality sound from streaming services, CD players, or home theater systems. An intuitive front panel and a remote control enhance user experience by providing easy access to settings and sources.

Furthermore, the RC-1550 prioritizes convenience with features like a headphone output for private listening and customizable settings that allow users to fine-tune their audio experience. The thoughtful layout and high-quality components culminate in a preamplifier that not only delivers exceptional performance but also adds aesthetic value to any audio system.

In summary, the Rotel RC-1550 is a sophisticated stereo preamplifier that combines advanced technologies, premium materials, and meticulous engineering. Its features, including Class A/B amplification, multiple input options, and digital processing capabilities, make it an ideal choice for audiophiles seeking an elevated listening experience. Whether paired with high-end speakers or used in a home theater setup, the RC-1550 promises to deliver a remarkable audio experience.
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