Main E3 F4.8

The E3 F4.8 power amplifier is a professional power amplifier designed for commercial karaoke systems, stages, auditoriums, and event sound systems. The product boasts a robust design, stable operation, and powerful amplification performance, meeting the needs of various environments.

Introducing the E3 F4.8 Karaoke Main Amplifier

The Main Karaoke E3 F4.8 is a 4-channel power amplifier with a power output of 4 x 1280W at 4Ω impedance and 2 x 1600W in Bridge mode at 8Ω, effectively driving various karaoke speakers, full-range speakers, or high-power subwoofers. The device has a frequency response of 20Hz – 20kHz (±0.5dB), reproducing the full range of frequencies from low to high, delivering balanced and realistic sound.

Technical parameters of the product to consider:

• Power output: 4 × 1280W at 4Ω With its powerful 4-channel design, the E3 F4.8 can simultaneously drive multiple karaoke speakers or full-range speakers, making it suitable for commercial karaoke systems, auditoriums, and professional stages.
• Bridge mode 2 × 1600W at 8Ω: This allows combining two channels into a single high-power channel to drive subwoofers or other high-power speaker systems, making the system more flexible.
• Class H amplifier circuit: Class H technology enhances amplification efficiency, reduces heat dissipation, and saves energy compared to traditional amplifier circuits, while still ensuring powerful output.
• Frequency response 20Hz – 20kHz (±0.5dB): This device reproduces the full frequency range from deep bass to high treble, resulting in balanced, detailed, and accurate sound when paired with various speaker systems.
• Total harmonic distortion (THD+N) <0,05%: Extremely low distortion levels ensure clean audio output, minimizing crackling or signal distortion even at high power levels.
• Damping Factor: 400:1 This is a crucial parameter that helps the main unit effectively control the speaker diaphragm, especially in the bass range, resulting in a tighter, more compact, and more powerful bass sound.
• Response speed (Slew Rate) 70V/µs: Fast signal processing capabilities help to accurately reproduce instantaneous sound pulses, increasing detail and minimizing distortion when playing fast-paced music.
• Input impedance 20kΩ (Balanced) and 10kΩ (Unbalanced): It allows for stable pairing with various devices such as mixers, digital effects processors, and signal processors while still ensuring sound quality.
• Front-to-back airflow cooling system: Active cooling design helps the device maintain a stable temperature during prolonged continuous operation, extending component lifespan.
• Multi-layered protection system: The main unit is equipped with comprehensive protection features such as Soft Start, DC protection, short circuit protection, overload protection, Clip Limiter, overheating protection, and gradual volume increase upon startup, ensuring the safety of both the device and the speaker system.
• Supports multiple operating modes: Users can select Stereo, Parallel, or Bridge modes, and adjust input sensitivity, high-pass filter (HPF), low-pass filter (LPF), and Ground Lift to optimize the configuration for each professional audio system.
• Flexible connectivity: Equipped with XLR-F, XLR-M, TRS ports and dedicated speaker terminals, the E3 F4.8 Karaoke Amplifier easily connects to digital processors, mixers, signal processors, karaoke speakers, full-range speakers, and subwoofers.

Key features of the E3 F4.8 power amplifier

The E3 F4.8 power amplifier is designed for karaoke and professional sound systems, featuring powerful output, excellent speaker control, and comprehensive protection. This device effectively meets the demands of continuous operation in commercial karaoke rooms, auditoriums, stages, and large-scale events.

• Powerful 4-channel output: It delivers high power output across all four channels, meeting the needs of driving multiple karaoke speakers, full-range speakers, or subwoofers in the same system.
• Supports high-power Bridge mode: Allows for bridging to increase output power, suitable for use with subwoofers or high-power speakers.
• High-performance Class H amplifier circuit: Optimize amplification efficiency, reduce heat generation, and save energy while ensuring stable output power.
• True sound quality: The wide frequency range combined with extremely low harmonic distortion helps to reproduce balanced, clear sound while preserving detail across the bass, mid, and treble ranges.
• Superior speaker control capabilities: The high damping coefficient helps control the speaker diaphragm effectively, resulting in a tight, clean bass sound and minimizing muddiness or trailing distortion.
• Active cooling system: The front-to-back airflow design helps the device dissipate heat efficiently, maintaining stable performance during prolonged continuous operation.
• Integrates multiple safety protection modes: Equipped with features such as soft start, short-circuit protection, DC protection, overload protection, over-temperature protection, and clipping limits, it helps protect both the power amplifier and the speaker system.
• Flexible with multiple operating modes: It supports Stereo, Parallel, and Bridge modes, and integrates HPF, LPF, and Ground Lift filters to optimize configuration for each audio system.
• Professional Connections: Equipped with XLR and TRS ports along with dedicated speaker terminals, it is compatible with digital effects processors, mixers, signal processors, and many professional speaker models.

Detailed review of the E3 F4.8 power amplifier.

Robust design, optimized for professional audio systems.

The E3 F4.8 power amplifier is designed to professional audio equipment standards with a robust chassis, scientifically arranged connection ports, and an intuitive control system. The device supports multiple operating modes such as Stereo, Parallel, and Bridge, allowing users to easily configure it for various karaoke, auditorium, or stage systems. In addition, XLR, TRS, and dedicated speaker terminals make pairing with digital processors, mixers, and speakers more convenient.

Powerful output, suitable for various speaker configurations.

The highlight of the E3 F4.8 is its power output of 4 × 1280W at 4Ω impedance, capable of driving multiple pairs of karaoke speakers or full-range speakers in the same system. When more power is needed for the subwoofer, the device can switch to Bridge mode with a power output of 2 × 1600W at 8Ω, providing powerful and flexible amplification performance.

In addition, the Class H amplifier circuit optimizes performance, reduces heat dissipation, and saves energy during continuous operation.

Stable sound quality, effective speaker control.

The E3 F4.8 delivers impressive sound quality thanks to its frequency response of 20Hz – 20kHz (±0.5dB), reproducing the full range of sounds from deep bass to bright treble. Total harmonic distortion (THD+N) below 0,05% ensures a clean output signal, minimizing distortion even at high power levels.

Furthermore, the 400:1 damping factor effectively controls the speaker diaphragm, especially in the bass range, resulting in a tighter, more powerful bass sound. The 70V/µs response speed also helps the main unit handle fast-paced audio signals well, delivering detailed and accurate sound.

Reliable operation with a comprehensive protection system.

To ensure stability during long-term use, the E3 F4.8 is equipped with a front-to-back airflow cooling system, which helps dissipate heat quickly and maintain stable performance over extended periods.

The device also integrates a full range of protection features such as Soft Start, DC protection, short-circuit protection, overload protection, Clip Limiter, overheat protection, and gradual volume increase upon startup, helping to protect both the amplifier and the speaker system from unforeseen incidents. This is one of the advantages that makes the E3 F4.8 suitable for commercial karaoke systems and professional sound systems requiring continuous operation.

Applications of Main Karaoke E3 F4.8

The E3 F4.8 main karaoke amplifier is widely used in many sound systems, from high-end home karaoke to professional sound installations.

• High-end home karaoke system.
• Karaoke room business.
• Sound systems for auditoriums and large meeting rooms.
• Performance and event stage.
• Restaurants, hotels, and wedding venues:
• Acoustic café and tea room.
• Schools and training centers.

Where can I buy a genuine and reliable E3 F4.8 power amplifier?

If you are looking for a genuine E3 F4.8 power amplifier at a competitive price, with a full warranty and professional after-sales service, Phuc Truong Audio is a reliable address for you. With many years of experience in the audio equipment field, Phuc Truong Audio always provides genuine products and optimal matching solutions for each system.

When purchasing the E3 F4.8 power amplifier from Phuc Truong Audio, customers are guaranteed 100% genuine products, complete with warranty stickers, accessories, and clear origin information. All equipment is thoroughly inspected before delivery to ensure stable operation and optimal performance.

In addition to distributing products, Phuc Truong Audio also provides consulting services to help you choose the right configuration for home karaoke, commercial karaoke, auditoriums, stages, restaurants, hotels, and event sound systems. Our technical team will advise on pairing the E3 F4.8 amplifier with digital processors, mixers, full-range speakers, subwoofers, and signal processing equipment, helping your system maximize its power and sound quality.

Frequently Asked Questions about the E3 F4.8 Power Amplifier

1. Which sound systems are suitable for the E3 F4.8 power amplifier?

The E3 F4.8 is suitable for high-end home karaoke, commercial karaoke systems , auditoriums, stages, restaurants, hotels, and event sound systems thanks to its high power and stable operation.

2. Which speaker models are suitable to pair with the Main E3 F4.8 amplifier?

The device can be paired with various karaoke speakers , full-range speakers, and subwoofers with appropriate power levels to maximize the performance and sound quality of the system.

3. Can the E3 F4.8 be used with a karaoke digital mixer?

Yes. The Main E3 F4.8 is compatible with most karaoke digital processors on the market, helping to process signals, prevent feedback, and optimize vocal quality before amplifying them to the speakers.

4. Does the E3 F4.8 power amplifier support Bridge mode?

Yes. The device supports Stereo, Parallel, and Bridge modes, giving users the flexibility to choose the configuration that best suits their audio system and needs.