Power amplifier E3 TX-4500

The E3 TX-4500 power amplifier is a 2-channel power amplifier designed for medium-sized karaoke, auditorium, and stage sound systems. The product stands out with its stable amplification capabilities, flexible pairing with various speaker models, and support for Bridge mode when increased power is needed.

The Class H design, combined with front-to-back cooling and multi-layer protection circuits, ensures the E3 TX-4500 operates reliably and safely, making it suitable for systems requiring stable performance over extended periods.

Introducing the E3 TX-4500 Power Amplifier 

The E3 TX-4500 power amplifier provides 2 x 500W at 8Ω and 2 x 800W at 4Ω, while also supporting 8Ω bridging with 1000W of power. This allows users to use two independent channels for karaoke speakers, full-range speakers, or monitor speakers, or switch to Bridge mode when needing to concentrate power on a compatible device.

The E3 TX-4500 has a frequency response range of 20Hz – 20kHz (±0,5dB), covering the entire common audio range in karaoke and performance systems. THD+N below 0,05% at 1W/8Ω helps limit signal distortion, while a damping ratio of 200:1 supports speaker control.

Technical parameters of the product to consider:

• Rated power 2 × 500W (8Ω): The two channels operate independently, each delivering 500W at 8Ω impedance. This power level is suitable for driving karaoke speakers, full-range speakers, or monitor speakers in medium-sized sound systems.
• Rated power 2 × 800W (4Ω): When operating at 4Ω, the power output increases to 800W/channel, allowing the E3 TX-4500 to better handle speaker configurations requiring higher power.
• Bridge power 1000W (8Ω): Bridge mode combines two power channels into a single power channel, suitable when you need to focus amplification power on a single speaker or compatible speaker configuration, especially in some systems that use a subwoofer.
• Frequency response range: 20Hz – 20kHz (±0,5dB) Covering the entire common audio frequency range, it reproduces relatively fully from bass, mid-range to treble, suitable for both karaoke and music listening.
• THD+N < 0,05% (1W/8Ω): Low distortion helps to minimize signal degradation during amplification, contributing to the maintenance of clear and accurate sound.
• Cross-modulation distortion at 60Hz & 7kHz (1W/8Ω): This parameter assesses the ability to control the interaction between signal components with different frequencies, helping to maintain sound clarity.
• Damping coefficient 200:1: This demonstrates relatively good control over the speaker driver's movement, which is particularly significant when paired with speaker systems that require precise bass control.
• Signal change rate: 70V/µs This allows the amplifier circuit to respond quickly to changes in the audio signal, supporting good reproduction of fast-paced and dynamic music passages.
• Input impedance 20kΩ (Balanced) / 10kΩ (Unbalanced): The E3 TX-4500 allows for pairing with a variety of source devices such as digital processors, mixers, and DSPs, while supporting both balanced and unbalanced signals.
• Class H amplifier circuit: Class H design aims to provide more efficient power delivery during operation, suitable for systems that require stable operation at various volume levels.
• AC power supply 200–240V / 50–60Hz: Suitable for common household electricity supply in Vietnam, convenient for deployment in fixed sound systems.
• Front-to-rear cooling system: The airflow is directed from the front to the back, helping to dissipate heat from the internal components, which is especially necessary when the amplifier is operating for extended periods.
• Multi-layered protection system: These include soft start, DC protection, short-circuit protection, overload protection, signal limiting, over-temperature protection, and incremental volume control. These mechanisms help mitigate risks when the system experiences overload or operates at high intensity.
• Stereo / Parallel / Bridge Mode: Allowing for changes in how the two channels are used depending on the system configuration, the E3 TX-4500 is more flexible when pairing with karaoke speakers, full-range speakers, monitor speakers, or subwoofers.
• HPF and LPF filters: It supports frequency filtering and segmentation, especially useful when building systems with full-range speakers and subwoofers, helping each speaker group focus on the appropriate frequency range.
• Connect the XLR and TRS inputs: Compatible with popular signal processing equipment such as digital reverberators, mixers, and DSPs, making it convenient for building professional sound systems.
• Red/black terminal output: This common connection type on power amplifiers ensures a secure connection to the speaker system when installed permanently.
• Indicator lights for Signal, Clip, Protect, Power, Bridge, and Parallel: This helps users quickly monitor the operating status of each function, and easily identify signal status or protection warnings during operation.

Key features of the E3 TX-4500 power amplifier. 

The E3 TX-4500 power amplifier is designed for sound systems requiring a versatile, easy-to-match, and multi-purpose 2-channel amplifier. Key features of the product include:

• Flexible 2-channel configuration: The 2-channel design allows the E3 TX-4500 to easily act as an amplifier for karaoke speakers, full-range speakers, or monitor speakers in various sound systems.
• Ability to switch between multiple modes: It supports Stereo, Parallel, and Bridge modes, allowing technicians to proactively change power distribution according to speaker configurations and intended use.
• Class H amplifier circuit: Class H design aims for efficient operation under varying power conditions, making it suitable for systems requiring stable operation over extended periods.
• Versatile combination: The E3 TX-4500 can be combined with digital processors, mixers, DSPs, karaoke speakers, full-range speakers, monitor speakers, and other professional audio equipment to build a complete system.
• Stable sound control: The 200:1 damping ratio supports the speaker driver's movement control, contributing to maintaining the tightness and compactness of the bass range when properly configured.
• Supports frequency band processing: The integration of HPF and LPF allows users to actively filter frequency ranges, which is especially useful when dividing tasks between full-range speakers and subwoofers.
• Multi-layered protection system: Equipped with soft start, DC protection, short-circuit protection, overload protection, signal limiting, and over-temperature protection, it helps to minimize potential problems when the system operates at high intensity.
• Front-to-rear airflow cooling: The airflow arrangement helps to dissipate heat from the equipment and is suitable for rack-mounted or continuously operating systems.
• Visual status monitoring: The front panel features indicator lights for Signal, Clip, Protect, Power, Bridge, and Parallel, allowing users to easily check the operating status without complicated operations.
• Designed to fit professional systems: The connectivity and control options are arranged to serve practical installation needs, making the E3 TX-4500 easy to integrate into karaoke systems, auditoriums, stages, and event sound systems.

Detailed review of the E3 TX-4500 2-channel power amplifier. 

Speaker amplification and matching capabilities

The E3 TX-4500 2-channel power amplifier boasts a power output of 2 x 500W at 8Ω and increases to 2 x 800W at 4Ω, providing suitable amplification for medium-sized karaoke and professional sound systems.

This power level allows the device to be paired with many karaoke speakers, full-range speakers, or monitor speakers with compatible specifications. Additionally, the 8Ω Bridge mode, reaching 1000W, provides users with more options for power distribution when focusing amplification on a single channel.

Audio signal reproduction capability

The E3 TX-4500 has a frequency response range of 20Hz – 20kHz (±0,5dB), fully covering the common frequency range in karaoke and music listening systems. THD+N <0,05% at 1W/8Ω indicates good signal distortion control under the stated measurement conditions.

In addition, the 200:1 damping ratio helps control the movement of the speaker driver, while the 70V/µs signal change rate allows the amplifier circuit to respond quickly to signal changes, suitable for music with high tempo and dynamics.

Flexibility in system development

A notable feature of the E3 TX-4500 is its ability to configure multiple settings including Stereo, Parallel, and Bridge. The device also features HPF and LPF, allowing technicians to proactively manage the frequency range in systems using both full-range and subwoofer speakers simultaneously.

The input impedance of 20kΩ with balanced signals and 10kΩ with unbalanced signals also makes it easy to connect the amplifier to devices such as digital processors, mixers, and DSPs. Therefore, the TX-4500 can be integrated into many sound configurations without requiring overly complex implementation.

Stability and range of applications

The E3 TX-4500 utilizes a Class H amplifier circuit and a front-to-back airflow cooling system, making it suitable for systems requiring continuous operation. The device is also equipped with protection mechanisms including soft start, DC protection, short-circuit protection, overload protection, signal limiting, and over-temperature protection, increasing safety during use.

In terms of application range, the TX-4500 is suitable for high-end home karaoke systems, commercial karaoke rooms, auditoriums, small to medium-sized stages, restaurants, cafes, and event sound systems. It's a worthwhile option if you need a 2-channel power amplifier with moderate power, flexible configuration, and easy compatibility.

Applications of the E3 TX-4500 Power Amplifier 

The E3 TX-4500 power amplifier, with its 2-channel configuration, delivers 2 x 500W at 8Ω, 2 x 800W at 4Ω, and supports Bridge 1000W/8Ω, meeting a wide range of amplification needs in sound systems from home to medium-sized professional setups.

• High-end family karaoke system.
• Karaoke room business.
• Full-range speaker system.
• Stage monitor speakers.
• Subwoofer speaker system.
• Hall, meeting room.
• Restaurants, cafes, lounges.
• Medium-sized stage and events.
• The sound system needs to be compactly configured.

Where can I buy a genuine and reliable E3 TX-4500 power amplifier?

If you're looking for a genuine E3 TX-4500 power amplifier, prioritize suppliers specializing in audio equipment, capable of advising on system matching and providing after-sales technical support. Phuc Truong Audio is a worthwhile option if you're looking for an E3 TX-4500 for your home karaoke system, commercial karaoke room, or professional sound system setup.

The E3 TX-4500 has a power output of 2 × 500W/8Ω, 2 × 800W/4Ω, and 1000W Bridge/8Ω, so product selection shouldn't be based solely on power rating. When purchasing from Phuc Truong Audio, customers can receive advice on matching the amplifier with karaoke speakers, full-range speakers, monitor speakers, or subwoofers based on power, impedance, and room size. This helps avoid choosing an amplifier that is too weak or whose power output is unsuitable for the speakers.

Besides the E3 TX-4500, Phuc Truong Audio also offers many other audio system components such as digital processors, mixers, wireless microphones, karaoke speakers, stage speakers, subwoofers, and signal processing equipment. This allows customers to build a complete system configuration instead of searching for individual components elsewhere. Especially for those with limited audio experience, receiving comprehensive system advice simplifies the selection process and makes it more practical.

Frequently Asked Questions about the E3 TX-4500 Power Amplifier 

1. What types of speakers are compatible with the E3 TX-4500 power amplifier?

The E3 TX-4500 is suitable for pairing with many karaoke speakers , full-range speakers, and monitor speakers with compatible power and impedance. With a power rating of 2 × 500W/8Ω and 2 × 800W/4Ω, the product is suitable for medium-sized sound systems. When choosing speakers, consider both RMS power, impedance, and actual usage requirements to ensure stable operation of the amplifier and speakers.

2. Can the E3 TX-4500 be used for a home karaoke system?

Yes. The E3 TX-4500 can be used for high-end home karaoke systems when a separate power amplifier is needed instead of an integrated amplifier. The power amplifier can be combined with a digital sound processor, wireless microphones, and karaoke speakers to create a system with good power, easy adjustment, and the potential for future upgrades. For medium-sized rooms, the 2-channel configuration of the TX-4500 is also quite convenient to deploy.

3. Can the E3 TX-4500 power a subwoofer?

The E3 TX-4500 supports 1000W Bridge mode at 8Ω, so it can be used for subwoofers if the subwoofer's specifications match this configuration. However, when using a power amplifier to drive a subwoofer, it's necessary to carefully check the impedance and power rating of the speakers before connecting. If the system uses both full-range and subwoofer speakers, it's advisable to add a digital sound processor, DSP, or crossover to divide the frequency range, ensuring each speaker group operates within its proper range.

4. Is the E3 TX-4500 suitable for commercial karaoke rooms?

The E3 TX-4500 is well-suited for medium-sized commercial karaoke rooms, especially when the system uses a pair of main speakers and requires a relatively powerful 2-channel amplifier . Its ability to deliver 800W/channel at 4Ω gives it ample room for pairing with suitable speakers. For larger rooms or systems requiring multiple speakers and high volume levels, a comprehensive plan is needed to determine the number of amplifiers required.