1. Introduction
This manual provides essential information for the safe and efficient operation of your Auna AMP-2540 Hi-Fi Home Cinema Amplifier. Please read these instructions carefully before using the device and retain them for future reference. Proper installation and usage will ensure optimal performance and longevity of your amplifier.
2. Safety Instructions
- Ensure the power supply voltage matches the rating label on the unit.
- Do not expose the amplifier to rain or moisture to prevent fire or electric shock.
- Do not open the casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Place the unit on a stable, level surface with adequate ventilation. Avoid placing it near heat sources or in direct sunlight.
- Disconnect the power plug from the wall outlet if the unit is not used for a long period.
- Keep children away from the device and packaging materials.
3. Product Overview
3.1 Front Panel Controls and Connections
Image Description: This image displays the front panel of the Auna AMP-2540 amplifier. Key features visible include the power button on the left, a central display screen, various control knobs for Balance, Bass, Treble, VCD/AUX, Tuner/CD, Tape, DVD/AC-3, Echo, M.Tone, M.Vol, and a large Master Volume knob on the right. Two microphone input jacks (MIC1, MIC2) are also present on the far right.
- POWER: On/Off switch for the amplifier.
- BALANCE: Adjusts the left/right channel balance.
- BASS: Adjusts low-frequency sound levels.
- TREBLE: Adjusts high-frequency sound levels.
- VCD/AUX, TUNER/CD, TAPE, DVD/AC-3: Input selectors for various audio sources.
- ECHO: Controls the echo effect for microphone inputs.
- M.TONE: Adjusts the tone of the microphone inputs.
- M.VOL: Controls the volume of the microphone inputs.
- MASTER VOLUME: Main volume control for all audio output.
- MIC1, MIC2: 6.3mm jack inputs for microphones.
- Display: Shows current input, volume level, and other operational information.
3.2 Rear Panel Connections
Image Description: This image shows the rear panel of the Auna AMP-2540 amplifier. It features speaker terminals for SR (Surround Right), SL (Surround Left), CENTER, FR (Front Right), and FL (Front Left). Audio input sections include DVD, TAPE, and VCD/AUX with RCA connectors. An FM antenna connection (ANT1, ANT2, GND) and the power cord input are also visible.
- FM ANTENNA (ANT1, ANT2, GND): Connections for an FM radio antenna.
- AUDIO INPUT (DVD, TAPE, VCD/AUX): RCA stereo input jacks for connecting external audio sources.
- SPEAKERS (SR, SL, CENTER, FR, FL): Spring clip terminals for connecting 5.1 channel speakers.
- Power Cord Input: For connecting the amplifier to an AC power outlet.
3.3 Remote Control
Image Description: This image displays the white remote control for the Auna AMP-2540 amplifier. It includes buttons for input selection (VCD/AUX, TUNER/CD, DVD, TAPE), radio functions (SEARCH, RESET), and volume control (VOLUME +, VOLUME -). The model number AMP-2540 is printed on the remote.
- Input Selectors (VCD/AUX, TUNER/CD, DVD, TAPE): Selects the desired audio input source.
- RADIO FUNCTION (SEARCH, RESET): Controls for tuning and resetting radio stations.
- VOLUME (+/-): Adjusts the master volume level.
4. Setup
4.1 Unpacking
Carefully remove the amplifier from its packaging. Inspect the unit for any signs of damage. Retain the packaging materials for future transport or storage.
4.2 Placement
Place the amplifier on a flat, stable surface. Ensure there is sufficient space around the unit for proper ventilation (at least 10-15 cm on all sides). Avoid placing it in enclosed cabinets or near heat-generating devices.
4.3 Connecting Speakers
The AMP-2540 supports a 5.1 channel speaker setup. Connect your speakers to the corresponding terminals on the rear panel:
- FR (Front Right)
- FL (Front Left)
- CENTER
- SR (Surround Right)
- SL (Surround Left)
Ensure correct polarity (+ to + and - to -) for all speaker connections to prevent phase issues and ensure optimal sound quality. Use appropriate gauge speaker wire.
4.4 Connecting Audio Sources
Connect your audio devices (e.g., DVD player, CD player, tape deck, auxiliary devices) to the corresponding RCA input jacks on the rear panel. For example:
- DVD: Connect your DVD player's audio output.
- TAPE: Connect your tape deck's audio output.
- VCD/AUX: Connect other auxiliary audio devices like smartphones or media players.
4.5 Connecting Microphones
For karaoke or public address functions, plug up to two microphones into the MIC1 and MIC2 jacks on the front panel.
4.6 Power Connection
After all audio and speaker connections are made, plug the amplifier's power cord into a suitable AC 220V-50Hz wall outlet.
5. Operating Instructions
5.1 Powering On/Off
Press the POWER button on the front panel to turn the amplifier on or off. The display will illuminate when the unit is powered on.
5.2 Source Selection
Use the input selector buttons on the front panel (VCD/AUX, TUNER/CD, TAPE, DVD/AC-3) or the remote control to choose your desired audio source. The selected input will be shown on the display.
5.3 Volume Control
- Master Volume: Rotate the large MASTER VOLUME knob on the front panel or use the VOLUME +/- buttons on the remote control to adjust the overall sound level.
- Microphone Volume: Use the M.VOL knob on the front panel to adjust the volume of the connected microphones independently.
5.4 Tone Controls
- BASS: Rotate the BASS knob to increase or decrease the low-frequency response.
- TREBLE: Rotate the TREBLE knob to increase or decrease the high-frequency response.
- M.TONE: Adjusts the tone of the microphone inputs.
5.5 Balance Control
Rotate the BALANCE knob to adjust the sound distribution between the left and right speaker channels.
5.6 Echo Control
Use the ECHO knob to add or remove an echo effect to the microphone inputs.
5.7 Radio Tuner Operation
If an FM antenna is connected, select the TUNER/CD input. Use the SEARCH and RESET buttons on the remote control to find and store radio stations.
6. Maintenance
6.1 Cleaning
Disconnect the power before cleaning. Use a soft, dry cloth to wipe the exterior of the amplifier. Do not use liquid cleaners or abrasive materials, as they may damage the finish.
6.2 Storage
If the amplifier will not be used for an extended period, disconnect it from the power outlet and store it in a cool, dry place, preferably in its original packaging.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet faulty; Amplifier power switch off. | Check power cord connection; Test outlet with another device; Ensure power switch is ON. |
| No sound output | Incorrect input selected; Speaker wires disconnected or incorrectly connected; Volume too low; Mute function active. | Select correct input source; Check all speaker connections and polarity; Increase master volume; Ensure mute is off. |
| Distorted sound | Volume too high; Speaker impedance mismatch; Faulty audio source. | Reduce volume; Ensure speakers match amplifier's impedance requirements; Test with a different audio source. |
| Remote control not working | Batteries depleted or incorrectly inserted; Obstruction between remote and amplifier; Remote sensor blocked. | Replace batteries; Ensure clear line of sight to amplifier's IR sensor; Clean remote sensor area. |
8. Specifications
| Feature | Specification |
|---|---|
| Model | AMP-2540 |
| Output Power | 400 Watts |
| Surround Sound Channel Configuration | 5.1 |
| Dimensions (W x H x D) | 43 x 7.01 x 29.01 cm |
| Weight | 3.5 kg |
| Input Voltage | AC 220V-50Hz |
| Power Consumption | 65W |
| Audio Inputs | DVD, TAPE, VCD/AUX (RCA) |
| Microphone Inputs | 2 x 6.3mm Jack |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.
