ONKYO Integra A-927 Transistor Integrated Amplifier

1. Product Overview

The ONKYO Integra A-927 is a high-fidelity transistor integrated amplifier, meticulously engineered to deliver exceptional audio performance. This model represents the pinnacle of ONKYO's Integra series, designed with an uncompromising approach to component selection and structural integrity. It is renowned for its gentle and soft sound characteristics, making it particularly well-suited for vocal performances.

Key Features:

• Effective Output: 100W + 100W (8Ω)
• Damping Factor: 150
• Power Consumption: 230W
• External Dimensions (W×H×D): 445 × 165 × 434 mm
• Weight: 18 kg

2. Safety Information

Please read all safety and operating instructions before using this product. Keep these instructions for future reference.

• Power Source: Connect the amplifier only to a power supply of the type described in these operating instructions or as marked on the unit.
• Ventilation: Ensure adequate ventilation. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
• Water and Moisture: Do not use this apparatus near water or expose it to dripping or splashing.
• Heat: Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Cleaning: Unplug this product from the wall outlet before cleaning. Use a dry cloth for cleaning.
• Servicing: Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

3. Setup

3.1 Unpacking

Carefully remove the amplifier from its packaging. Retain the original packaging materials for future transport or storage.

3.2 Placement

Place the amplifier on a stable, level surface with sufficient space around it for proper ventilation. Avoid placing it in direct sunlight or near heat sources.

3.3 Connections

Before making any connections, ensure the amplifier is turned off and unplugged from the power outlet.

• Audio Inputs: Connect your audio sources (CD player, turntable, tuner, etc.) to the appropriate input jacks on the rear panel using high-quality RCA cables.
• Speaker Outputs: Connect your speakers to the speaker terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for each speaker. Use appropriate gauge speaker wire.
• Power: Once all audio and speaker connections are made, plug the power cord into a suitable wall outlet.

Figure 1: Front panel of the Onkyo Integra A-927 integrated amplifier. This image shows the various control knobs, input selectors, and the power button. The top surface has a wooden finish.

4. Operating Instructions

4.1 Power On/Off

Press the power button on the front panel to turn the amplifier on or off. A slight delay may occur before the unit fully powers up.

4.2 Input Selection

Use the input selector knob or buttons on the front panel to choose the desired audio source (e.g., CD, Tuner, Phono).

4.3 Volume Control

Rotate the large volume knob to adjust the sound level. Start with a low volume and gradually increase it to a comfortable listening level.

4.4 Tone Controls

The amplifier features tone controls to fine-tune the audio output:

• Bass: Adjusts the low-frequency response.
• Treble: Adjusts the high-frequency response.
• Balance: Adjusts the relative volume between the left and right channels.

For the most accurate sound reproduction, it is generally recommended to set tone controls to their flat (neutral) position.

4.5 Headphone Output

Connect headphones to the headphone jack on the front panel. Connecting headphones will typically mute the speaker outputs.

5. Maintenance

5.1 Cleaning

To clean the amplifier, first unplug it from the power outlet. Use a soft, dry cloth to wipe the exterior surfaces. Do not use liquid cleaners or aerosol sprays, as they may damage the finish or internal components.

5.2 Storage

If storing the amplifier for an extended period, ensure it is unplugged and placed in a dry, dust-free environment. It is recommended to use the original packaging for protection.

6. Troubleshooting

If you experience issues with your ONKYO Integra A-927, please refer to the following common problems and solutions:

• No Power:
  • Check if the power cord is securely plugged into the wall outlet and the amplifier.
  • Verify that the power outlet is functional.
• No Sound:
  • Ensure the correct input source is selected.
  • Check speaker connections for proper polarity and secure attachment.
  • Verify that the volume is not set to minimum or muted.
  • If headphones are plugged in, remove them to enable speaker output.
• Distorted Sound:
  • Check if the input source is clean and free of distortion.
  • Ensure speaker wires are not frayed or shorting.
  • Reduce the volume level if the distortion occurs at high volumes.

If the problem persists after attempting these solutions, please contact qualified service personnel.

7. Specifications

8. Warranty and Support

Specific warranty information for this product is not available in the provided data. Please refer to the original purchase documentation or contact your retailer for warranty details.

For additional support or information about Onkyo products, you may visit the official Onkyo store on Amazon: Onkyo Official Store