Main BFAUDIO VA4650i

Main Karaoke BFAUDIO VA4650i

The BFAUDIO VA4650i power amplifier is one of the powerful 4-channel power amplifiers, designed to meet the demands of high-quality audio, ensuring high power output, detailed sound, and long-lasting durability.

General Introduction About BFAUDIO VA4650i Power Amplifier

With a power output of up to 1000W/channel (4Ω), an intelligent cooling system, and realistic sound quality, the BFAUDIO VA4650i Power Amplifier is the perfect choice for stages, auditoriums, bars, and high-end 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

The BFAUDIO VA4650i power amplifier is equipped with 4 high-power channels, an intelligent cooling system, a shock-resistant filter, and overload protection circuitry, ensuring stable operation 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

The BFAUDIO VA4650i amplifier not only boasts a powerful output of up to 1000W/channel (4Ω), but is also equipped with an intelligent cooling system, a shock-resistant filter, and advanced protection circuitry, ensuring durable and safe operation under all usage conditions.

Modern, Sturdy Design

The BFAUDIO VA4650i karaoke amplifier boasts a professional, robust design with a high-quality metal casing, ensuring superior durability and protecting internal components from external physical impacts. The electrostatic powder coating not only prevents scratches and reduces dust accumulation but also enhances aesthetics, giving it a luxurious look suitable for professional sound environments.

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

The BFAUDIO VA4650i main amplifier is equipped with 4 independent amplifier channels, delivering powerful output:

• 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.

The 20Hz – 20kHz (±0.5dB) frequency response range allows for detailed sound reproduction, from deep, powerful bass to clear, smooth mids and bright, crisp treble, enabling the BFAUDIO VA4650i to excel in various music genres, from ballads, bolero, pop-ballads to dance music, EDM, and remixes at 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, the BFAUDIO VA4650i motherboard is equipped with overload, overheating, and short-circuit protection circuits, minimizing 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

The BFAUDIO VA4650i main amplifier is equipped with a variety of connection ports, making it easy to integrate with other audio equipment.

• 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, the BFAUDIO VA4650i power amplifier can easily connect to mixers, digital processors, crossovers, or other professional audio processing equipment, optimizing the output sound quality.

Versatile Applications In Many Sound Systems

Thanks to its powerful output, accurate sound reproduction, and flexible connectivity options, the BFAUDIO VA4650i is suitable for a wide range of professional audio 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're looking for a genuine BFAUDIO VA4650i main amplifier at the best price, Phuc Truong Audio is a reliable address. They specialize in providing professional audio equipment, guaranteeing genuine, high-quality products with a reputable warranty.

At Phuc Truong Audio , customers not only get products at competitive prices, but also receive dedicated advice from our team of audio experts, helping you choose the equipment that best suits your needs. In addition, we offer nationwide delivery, on-site installation, and detailed usage instructions, ensuring 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 has powerful output and can be combined with a subwoofer to enhance the bass range, resulting in a richer and more solid sound.

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

The motherboard is equipped with safety protection circuitry; however, frequent sudden power outages can affect the lifespan of the components. Using a voltage stabilizer or UPS is recommended to mitigate this risk.