Marantz MM7055 5-kanavainen virtalähde Ampelävämpi

1. Johdanto

The Marantz MM7055 is a high-performance 5-channel power amplifier designed to enhance your home theater audio experience. It delivers 140 watts of high-current output per channel, making it suitable for driving demanding speakers in a 5.1 home theater system. This amplifier supports both balanced (XLR) and single-ended (RCA) inputs, offering flexible connectivity options. Its robust construction and advanced circuitry ensure stable and accurate audio reproduction.

Keskeisiä ominaisuuksia ovat:

• 140W (8 ohms, 20Hz-20kHz) x5 Power Ampelävämpi
• Current feedback power amplifier with Marantz HDAM circuit
• XLR & RCA inputs for all 5 channels
• Irrotettava virtajohto
• New stylish front design

Kuva 1: Etuosa view of the Marantz MM7055 5-Channel Power Ampelinkaari, näyttelyasing its sleek black finish and central illuminated porthole display.

2. Mitä laatikossa on

Kun avaat paketin, tarkista, että kaikki seuraavat osat ovat mukana:

• Marantz MM7055 5-kanavainen virtalähde Ampelävämpi
• Irrotettava virtajohto
• Käyttöopas (tämä asiakirja)
• Other accessories as specified by the manufacturer (e.g., remote control, batteries if applicable, though not explicitly listed for this ampelävämpi)

3. Asennus ja liitännät

Ennen kuin liität amplifier, ensure all components are powered off and unplugged from the wall outlet. Refer to the rear panel diagram for connection points.

Kuva 2: Takaosa view of the Marantz MM7055, displaying the balanced (XLR) and single-ended (RCA) inputs for each of the five channels, along with the gold-plated speaker terminals and remote control connections.

3.1. Audiotuloliitännät

The MM7055 offers both balanced (XLR) and single-ended (RCA) inputs for each channel. Choose the input type that matches your pre-amplifier or AV receiver's outputs for optimal signal integrity.

• XLR (Balanced) Inputs: For professional-grade connections, connect XLR cables from your pre-amplifier's balanced outputs to the corresponding XLR inputs on the MM7055.
• RCA (Single-Ended) Inputs: For standard connections, connect RCA cables from your pre-amplifier's RCA outputs to the corresponding RCA inputs on the MM7055.
• Ensure that the input selector switch (if present, or automatically detected) for each channel is set correctly for the type of cable used.

3.2. Kaiutinliitännät

The MM7055 features gold-plated, four-way binding post speaker terminals. Use high-quality speaker wire for the best performance.

• Identify the positive (+) and negative (-) terminals on both your speakers and the ampelävämpi.
• Liitä kunkin kaiuttimen positiivinen (+) liitin vastaavaan positiiviseen (+) -liittimeen ampelävämpi.
• Liitä kunkin kaiuttimen negatiivinen (-) -liitin vastaavaan negatiiviseen (-) -liittimeen ampelävämpi.
• Varmista, että kaikki liitännät ovat tiukasti kiinni signaalin katoamisen tai oikosulkujen estämiseksi.
• The MM7055 is capable of long-term power delivery into low-impedance speakers.

3.3. Virtaliitäntä

Connect the detachable power cord to the AC inlet on the rear of the amplifier, then plug the other end into a suitable wall outlet.

4. Käyttöohjeet

4.1. Virta päälle / pois

• Virran kytkemiseksi päälle amplifier, press the "POWER ON/STANDBY" button located on the front panel. The illuminated porthole display will light up.
• laittaa amplifier into standby mode, press the "POWER ON/STANDBY" button again.
• For total remote control convenience, the MM7055 includes input and output jacks for DC trigger pulses as well as RC-5 jacks, allowing integration with compatible control systems.

4.2. Äänen toisto

Once connected to a pre-amplifier or AV receiver, the MM7055 will amplify the audio signals received from your source components. Adjust the volume and select audio modes via your pre-amplifier tai AV -vastaanotin.

The MM7055 is ideal for a 5.1 home theater system, providing powerful and clear audio for movie soundtracks and music. For more complex home theater systems, the MM7055 can be paired with one or several MM7025s (sold separately) to create an immersive 7.1 or 9.1 audio experience.

5. Huolto

5.1. Puhdistus

To maintain the appearance of your amplifier, wipe the exterior surfaces with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents, as these may damage the finish. Ensure the unit is powered off and unplugged before cleaning.

5.2. Tuuletus

The MM7055 employs an extruded aluminum thermal tunnel with temperature-sensing forced air cooling for efficient heat dissipation. Ensure adequate ventilation around the amplifier to prevent overheating. Do not block any ventilation openings. This configuration assures cool operating temperatures for long-term reliability, even under substantial output.

6. Vianmääritys

If you experience issues with your Marantz MM7055, please consult the following common troubleshooting steps before seeking professional service.

• Ei virtaa:
  • Varmista, että virtajohto on kytketty kunnolla molempiin amplifier and a working wall outlet.
  • Verify the wall outlet is supplying power (test with another device).
  • Check if the "POWER ON/STANDBY" button has been pressed.
• Ei ääntä:
  • Confirm that all audio input cables (XLR or RCA) are securely connected between the pre-amplifier/receiver and the MM7055.
  • Tarkista kaikkien kaiuttimien johtojen liitännät molemmista amplifier and the speakers, ensuring correct polarity (+ to + and - to -).
  • Verify that your pre-amplifier/receiver is powered on, has a source selected, and its volume is turned up.
  • Ensure the correct input type (XLR/RCA) is selected on the amplifier if there is a manual switch (though typically auto-sensing).
• Vääristynyt ääni:
  • Tarkista kaikki kaapeliliitännät löysyyden tai vaurioiden varalta.
  • Varmista, etteivät kaiutinjohdot ole rispaantuneet tai oikosulussa.
  • Reduce the volume level from your pre-amplifier/receiver to see if distortion persists, indicating potential clipping.
  • Verify that the impedance of your speakers is compatible with the ampelävämpi.
• Ylikuumeneminen:
  • Varmista, että amplifier has adequate ventilation and is not placed in an enclosed space without airflow.
  • Remove any objects blocking the ventilation openings.
  • Allow the unit to cool down if it has been operating at high volumes for extended periods.

The chassis of the MM7055 is heavy gauge steel, designed to provide maximum isolation from external vibration and minimize electromagnetic and radio frequency interference, contributing to clear, uninterrupted sound.

7. Tekniset tiedot

8. Takuu ja tuki

Marantz products are designed for reliability and performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Marantz websivusto. Takuu kattaa tyypillisesti materiaali- ja valmistusvirheet tietyn ajan ostopäivästä lukien.

For technical support, service, or inquiries regarding your MM7055 amplifier, please contact Marantz customer support or an authorized service center. Contact information can usually be found on the Marantz websivustolla tai tuotteen mukana toimitetuissa dokumenteissa.

Note: Protection plans offered by third parties (e.g., Amazon Protection Plans) are separate from the manufacturer's warranty and have their own terms and conditions.