Main BFAUDIO VA4650i

Main Karaoke BFAUDIO VA4650i

Main BFAUDIO VA4650i is one of the powerful 4-channel power amplifier lines, designed to meet the needs of high quality sound, ensuring high capacity, detailed sound and durability over time.

General Introduction About BFAUDIO VA4650i Power Amplifier

With power up to 1000W/channel (4Ω), smart cooling system and realistic sound quality, BFAUDIO VA4650i Power Main is the perfect choice for stages, halls, bars, high-class karaoke rooms.

Outstanding product specifications:

• Power (8Ω): 4 x 650W, suitable for high impedance speaker systems.
• Power (4Ω): 4 x 1000W, ensuring powerful and stable sound.
• Input sensitivity (32dB / X40): 3.73V, helps to amplify the signal effectively.
• Input sensitivity (40dB / X100): 0.69V, supports flexible signal level adjustment.
• Signal to Noise Ratio (S/N Ratio – A Weight): > 110dB, ensuring clean, noise-free sound.
• Frequency response (±0.5dB): 20Hz – 20kHz, reproduces full sound from bass to treble.
• Shock filter (63Hz): > 500, helps reduce distortion when operating at high power.
• Total Harmonic Distortion (THD – 1kHz): < 0,025%, ensuring true sound with little distortion.
• Input connection: 20kΩ Balanced, 10kΩ Unbalanced, compatible with many audio processing devices.
• Output connection: 4 x NL4, supports diverse connections with professional speaker systems.
• Cooling system: Variable speed fan helps maintain stable temperature and prolongs equipment life.
• Power supply (8Ω): 230V – 3.5A, reasonable power consumption compared to performance.

Features of Main BFAUDIO VA4650i

Main BFAUDIO VA4650i Equipped with 4 high-power channels, intelligent cooling system, anti-shock filter and overload protection circuit, the device operates stably even under high-intensity conditions. Let's explore the outstanding features that make this device a reliable choice for professional sound systems.

• High power, powerful performance: Supports 4 x 650W (8Ω) and 4 x 1000W (4Ω), suitable for professional sound systems.
• Support 4 independent channels: Easy to connect and adjust power for each different speaker zone.
• Ultra low distortion: THD < 0,025% @ 1kHz, ensuring accurate, faithful sound.
• Smart cooling: Speed-controlled fan, air flow from front to back helps the machine operate durably without overheating.
• Premium shockproof filter: Damping Factor > 500 @ 63Hz, keeps sound solid, no vibration or distortion.
• High Signal to Noise Ratio (S/N Ratio): > 110dB, for clear sound, free of background noise.
• Wide frequency range: 20Hz – 20kHz, full-range sound reproduction, suitable for both full-range speakers and subwoofers.
• Flexible connectivity: Supports 20kΩ Balanced input, 10kΩ Unbalanced, 4 x NL4 output, easily compatible with many sound systems.
• Smart protection: Integrated overload, overheat, short circuit protection circuit ensures safety for speakers and equipment.
• Sturdy, compact design: Size 483mm x 400mm x 88mm, easy to install into professional rack cabinet.
• Reasonable power consumption: 230V – 3.5A @ 8Ω, optimal performance without consuming too much power.

Detailed Review of Karaoke Main BFAUDIO VA4650i

Main BFAUDIO VA4650i Not only does it have a powerful output of up to 1000W/channel (4Ω), but it is also equipped with an intelligent cooling system, anti-shock filter and advanced protection circuit, ensuring durable and safe operation in all conditions of use.

Modern, Sturdy Design

Main Karaoke BFAUDIO VA4650i Professional, sturdy design with high-quality metal shell, giving the device outstanding durability, protecting internal components from external physical impacts. The electrostatic paint coating on the outside not only helps prevent scratches, limit dust accumulation but also increases aesthetics, bringing a luxurious appearance, suitable for professional audio spaces.

The 483mm x 400mm x 88mm size is optimized for easy installation in a standard 2U rack cabinet, making the sound system neater and tidier.

Weighing 18kg, the device is highly sturdy, helping to limit vibrations during operation, especially when running at high capacity for long periods of time. This weight also helps to minimize negative impacts from the surrounding environment, ensuring that the audio signal is not affected by unwanted vibrations.

The highlight of the device's design is the modern cooling system, using a speed-controlled fan with air flow from front to back, helping to dissipate heat quickly and effectively. When the device operates continuously at high capacity, this cooling system will help maintain a stable temperature, prevent overheating, and prolong the life of internal components.

Powerful, High Performance

Main BFAUDIO VA4650i Equipped with 4 independent amplifier channels, providing powerful power levels:

• 650W/channel (8Ω) – suitable for small and medium sound systems.
• 1000W/channel (4Ω) – meets professional audio needs, helps to drive full-range speakers or subwoofers well.

Thanks to its large and stable capacity, the device can be used for many different spaces, from professional karaoke systems, bars, mini stages, small halls, ensuring vivid, powerful sound, no distortion even when operating at high intensity.

Frequency response range 20Hz – 20kHz (±0.5dB) helps reproduce detailed sound, from deep, strong bass, to clear, smooth mid and bright, sharp treble, helping BFAUDIO  VA4650i maximizes its potential in many different music genres, from lyrical music, bolero, pop-ballad to dance music, EDM, remix with high power.

Another important point is the total harmonic distortion (THD) <0,025% at 1kHz, ensuring the audio signal is faithful, without distortion or distortion when amplified, helping listeners experience realistic, vivid sound quality, especially important in professional sound systems, where sound quality is always a top priority.

Smart Protection System, Stable Operation

To ensure stable and durable operation of the device, Main BFAUDIO VA4650i Equipped with overload, overheating, short circuit protection circuit, helping to minimize risks during use.

In addition, the anti-shock filter with Damping Factor > 500 @ 63Hz helps reduce vibration, ensuring solid sound, no distortion when operating at high power. Signal-to-noise ratio (S/N Ratio > 110dB) helps clean, clear sound, no background noise even when the volume is turned up high.

With this protection system, the device not only prolongs the life of the device itself but also helps protect the speaker, avoiding damage due to overload power or unstable audio signal.

Flexible Connection, Easy Integration

Main BFAUDIO VA4650i Equipped with a variety of connection ports, easy to combine with other audio devices.

• 20kΩ Balanced and 10kΩ Unbalanced inputs – help ensure stable input signals, limit background noise, keep sound clean, and unaffected by external signals.
• 4-port NL4 output – flexible connection to high-power speakers, helping the sound system operate stably and achieve high performance.

In addition, the device also supports flexible input sensitivity with two customizable levels:

• 32dB / X40 (3.73V) – for sound systems with strong input signals.
• 40dB / X100 (0.69V) – optimized volume for devices with weak input signals.

Thanks to this design, BFAUDIO VA4650i power board Can be easily connected to mixers, digital echoes, crossovers or other professional audio processing devices, helping to optimize output sound quality.

Versatile Applications In Many Sound Systems

Thanks to its powerful capacity, realistic sound quality and flexible connectivity, BFAUDIO  VA4650i Suitable for many professional sound systems:

• Professional karaoke system: Helps reproduce detailed, powerful sound, bringing a vivid karaoke experience like on stage.
• Hall, meeting room: Meets the need for clear sound amplification, good support for speeches, presentations or small and medium-sized events.
• Mini stage, bar: Provides enough power to ensure even sound distribution, suitable for live performances or DJ music playback.
• Outdoor sound system installation: With the ability to operate stably even when opened at high capacity for long periods of time, the device is suitable for outdoor events, fairs and exhibitions.
• Sound system for cafes and restaurants: Ensures clear, pleasant sound quality, suitable for relaxing spaces and background music.

Where to Buy Genuine BFAUDIO VA4650i Mainboard at Good Price?

If you are looking for Main BFAUDIO VA4650i Genuine with best price, Phuc Truong Audio is a reliable address. This is a unit specializing in providing professional audio equipment, ensuring genuine goods, high quality and reputable warranty.

At Phuc Truong Audio, customers not only buy products at competitive prices, but also receive dedicated advice from a team of audio experts, helping you choose the right equipment for your needs. In addition, we also support nationwide delivery, on-site installation and detailed instructions for use, helping you have the best audio experience.

If you want to own audio equipment at a good price, with a clear warranty and professional service, contact Phuc Truong Audio immediately for quick support!

Frequently Asked Questions When Buying BFAUDIO VA4650i Power Supply Main

Does the BFAUDIO VA4650i main have noise or distortion when turned up loud?

Thanks to total harmonic distortion (THD) <0,025% at 1kHz, the device ensures faithful audio signals, without distortion or distortion when the volume is turned up high.

Does BFAUDIO VA4650i support subwoofer?

Yes, the device is powerful and can be combined with subwoofer slightly to enhance the bass range, making the sound thicker and stronger.

If there is a sudden power failure, will the mainboard be affected?

Hair Equipped with safety protection circuit, however, frequent sudden power outages can affect the life of components. It is recommended to use a voltage stabilizer or UPS to limit the risk.