Montarbo NM250A Active Loudspeaker User Manual

1. Pengenalan

Thank you for choosing the Montarbo NM250A Active Loudspeaker. This powerful bi-amplified active loudspeaker delivers 250 watts of total power, combining high sound pressure with a compact size and simple operation. It is designed for versatility, suitable for small shows, presentations, conferences, home recording, MIDI playback, and personal monitoring in rehearsal rooms. The NM250A performs exceptionally well in various environments, including medium-sized spaces, restaurants, clubs, and small auditoriums, providing excellent audio results with maximum ease of use.

This manual provides essential information for the safe and efficient operation of your Montarbo NM250A loudspeaker. Please read it thoroughly before use and retain it for future reference.

2. Arahan Keselamatan

Untuk memastikan operasi yang selamat dan mengelakkan kerosakan, sila patuhi langkah berjaga-jaga keselamatan berikut:

• Bekalan Kuasa: Sambungkan unit hanya kepada volum yang dinyatakantage and frequency. Ensure the power cable is undamaged and properly grounded.
• Pengudaraan: Jangan sekat bukaan pengudaraan. Pastikan aliran udara yang mencukupi di sekeliling unit untuk mengelakkan terlalu panas.
• Kelembapan: Do not expose the unit to rain, moisture, or excessive humidity. Avoid placing liquids on or near the speaker.
• penempatan: Place the speaker on a stable, level surface. When using pole mounts or stacking, ensure all connections are secure.
• Perlindungan Pendengaran: Pendedahan berpanjangan kepada tahap tekanan bunyi yang tinggi boleh menyebabkan kerosakan pendengaran kekal. Gunakan perlindungan pendengaran yang sesuai apabila mengendalikan pembesar suara pada kelantangan tinggi.
• Servis: Do not attempt to service this unit yourself. Refer all servicing to qualified personnel.

3. Kandungan Pakej

Sila pastikan pakej anda mengandungi item berikut:

• Montarbo NM250A Active Loudspeaker
• Kabel Kuasa
• Manual Pengguna (dokumen ini)

4. Produk Lebihview

The Montarbo NM250A is a professional-grade active loudspeaker designed for clarity and power. Its robust construction and advanced features make it suitable for a wide range of audio applications.

Rajah 1: Depan view of the Montarbo NM250A Active Loudspeaker. This image shows the speaker's compact and robust design, featuring a protective grille over the woofer and a horn for the mid/high driver.

Ciri-ciri Utama:

• Professional 2-way bass reflex design.
• Custom components built to Montarbo specifications.
• 8-inch woofer with a 2-inch voice coil, offering high efficiency and excursion.
• Mid/high driver with a 1-inch voice coil and constant directivity (H90° x V60°).
• Integrated bi-amplification with 2 Mosfet power units in Class AB.
• Maximum power output of 250 watts (200W for bass, 50W for mid/high).
• Active electronic crossover at 1600 Hz with 24 dB/octave slope.
• Neutrik-Combo input for versatile XLR and 1/4-inch jack connections.
• Balanced XLR output for linking multiple speakers.
• Multi-angle cabinet construction allows use as a stage pantau.
• Lightweight and robust polypropylene cabinet with a durable steel grille.
• Equipped with 2 x M8 threaded inserts, self-locking feet, a pole mount socket, and a side carry handle for easy transport and installation.

5. Persediaan

5.1 Positioning the Loudspeaker

The Montarbo NM250A can be positioned in several ways:

• Berdiri sendiri: Letakkan pembesar suara di atas permukaan yang stabil dan rata.
• Pemasangan tiang: Use the integrated pole mount socket to place the speaker on a standard speaker stand.
• Stage Pantau: The multi-angle cabinet design allows the speaker to be placed on its side for use as a floor monitor.
• Menyusun: Multiple NM250A units can be securely stacked using their integrated feet and recesses.

Rajah 2: Illustration of stacking two Montarbo NM250A loudspeakers. The image highlights how the speakers interlock for stable vertical placement.

Rajah 3: Montarbo NM250A loudspeakers configured for stage monitor use. This image demonstrates the multi-angle design allowing the speaker to be angled on the floor.

5.2 Kuasa Penyambung

1. Pastikan suis kuasa pembesar suara berada dalam DIMATIKAN kedudukan.
2. Connect the supplied power cable to the AC inlet on the rear panel of the speaker.
3. Pasangkan hujung kabel kuasa yang satu lagi ke dalam soket elektrik yang dibumikan yang sesuai.

5.3 Sambungan Audio

The rear panel of the NM250A features various input and output options:

Rajah 4: Depan view and detailed rear control panel of the Montarbo NM250A. The rear panel shows the input/output connectors, volume, and tone controls.

• MIC/LINE Input (Neutrik-Combo): This input accepts both XLR and 1/4-inch (6.35mm) jack connectors. Use an XLR cable for microphone signals or a 1/4-inch jack for line-level signals from mixers, instruments, or other audio devices.
• LINK Output (XLR): This balanced XLR output allows you to send the audio signal to another active speaker or audio device. This is useful for daisy-chaining multiple NM250A units.

1. Connect your audio source (e.g., mixer, microphone, instrument) to the MIC/LINE Input menggunakan kabel yang sesuai.
2. If linking multiple speakers, connect an XLR cable from the LINK Output of the first speaker to the input of the next speaker.

6. Arahan Operasi

6.1 Menghidupkan/Mematikan

1. Before powering on, ensure all volume controls are set to their minimum position.
2. Balikkan KUASA hidupkan panel belakang ke ON position. The power indicator LED will illuminate.
3. To power off, set the KUASA bertukar kepada DIMATIKAN kedudukan.

6.2 Menyelaraskan Kelantangan dan Nada

The rear panel features controls for adjusting the sound:

• JILID: This knob controls the overall output level of the speaker. Start with a low setting and gradually increase to the desired level.
• TINGGI: Adjusts the high-frequency (treble) content of the sound. Turn clockwise to boost treble, counter-clockwise to cut.
• RENDAH: Adjusts the low-frequency (bass) content of the sound. Turn clockwise to boost bass, counter-clockwise to cut.

Adjust these controls to achieve the desired sound balance for your environment and audio source.

7. Penyelenggaraan

7.1 Pembersihan

• Sentiasa cabut kabel kuasa sebelum membersihkan.
• Use a soft, dry cloth to wipe the exterior of the speaker.
• Untuk kotoran degil, sedikit damp Kain dengan sabun lembut boleh digunakan, diikuti dengan kain kering.
• Do not use abrasive cleaners, solvents, or waxes, as these can damage the cabinet finish.

7.2 Penyimpanan

When not in use for extended periods, store the speaker in a dry, dust-free environment. It is recommended to use the original packaging or a protective cover to prevent dust accumulation and physical damage.

Rajah 5: Close-up of the side handle and M8 threaded insert on the Montarbo NM250A. This image illustrates the robust construction and practical features for handling and mounting.

8. Penyelesaian masalah

If you encounter issues with your Montarbo NM250A, refer to the following common problems and solutions:

• Tiada Kuasa:
  • Check if the power cable is securely connected to both the speaker and the electrical outlet.
  • Sahkan bahawa salur keluar kuasa berfungsi.
  • Ensure the power switch on the speaker is in the 'ON' position.
• Tiada Bunyi:
  • Check the volume knob on the speaker and ensure it is not set to minimum.
  • Sahkan bahawa sumber audio aktif dan menghantar isyarat.
  • Check all audio cables for secure connections and damage.
  • Ensure the correct input is being used and the input sensitivity is appropriate for your source.
• Bunyi Herot:
  • Reduce the volume level on both the speaker and the audio source.
  • Check if the audio cables are damaged or improperly connected.
  • Adjust the HIGH and LOW tone controls to see if they are causing the distortion.
• Hum atau Bunyi:
  • Pastikan semua peralatan dibumikan dengan betul.
  • Try using different audio cables.
  • Move the speaker or audio cables away from power cables or other electronic devices that might cause interference.

If the problem persists after trying these solutions, please contact Montarbo customer support.

9. Spesifikasi

10. Waranti dan Sokongan

The Montarbo NM250A Active Loudspeaker comes with a limited warranty. Please refer to the warranty card included with your product for specific terms and conditions. For technical support, service, or warranty claims, please contact your authorized Montarbo dealer or visit the official Montarbo webtapak untuk maklumat hubungan.