
3e Audio A7 Class D Stereo Power Amplifier
Key Features
- Working method: Class D
- Output power: 300W*2 @ 4 Ohms
- Total Harmonic Distortion: 0.01%
- Dynamic Range :> 123dB
- Frequency response: 20Hz–35KHz
- Input: RCA /XLR
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Specification
Amplifier
Amplifier Class
Class D
Power Chip/IC
TPA Series
Output Impedance
4-8 Ohms
Input Voltage
24V-48V DC
Colour
Black
Description
3e Audio A7 Class D Stereo Power Amplifier Price in Bangladesh
3e Audio 3e Audio A7 Class D Stereo Power Amplifier is a high-performance audiophile-grade amplifier designed for users who demand exceptional sound quality, ultra-low distortion, and powerful stereo output. At Audio Phonic, we provide original 3e Audio amplifiers in Bangladesh for HiFi enthusiasts, home audio users, and professional listeners who want premium Class D amplifier technology with advanced engineering and superior musical performance.
The 3e Audio A7 is powered by dual Texas Instruments TPA3255 amplifier chips combined with premium OPA1612A operational amplifiers and advanced PFFB architecture. This powerful combination delivers remarkable clarity, dynamic performance, and strong speaker-driving capability while maintaining high efficiency and low distortion.
With support for both RCA and balanced XLR/TRS inputs, powerful stereo output, compact design, and audiophile-grade internal components, the 3e Audio A7 becomes an ideal amplifier for modern HiFi systems, desktop audio setups, and premium home stereo systems.
Premium Class D Amplifier Technology
The 3e Audio A7 uses advanced Class D amplifier technology designed for high-performance audio reproduction.
Modern Class D amplifiers are known for delivering:
High Efficiency
The amplifier converts power more efficiently while reducing unnecessary heat generation.
Powerful Output Capability
Compact size with strong speaker-driving performance.
Cleaner Sound Performance
Advanced amplification design minimizes distortion and improves transparency.
Better Energy Consumption
Lower power usage compared to traditional amplifier designs.
The A7 combines these advantages with premium audiophile engineering for outstanding music reproduction.
Dual TI TPA3255 Amplifier Chips
At the core of the 3e Audio A7 are two Texas Instruments TPA3255 amplifier chips.
The TPA3255 is one of the most respected Class D amplifier chips in the HiFi audio industry because of its excellent sound quality and high-power capability.
Benefits of TPA3255 Technology
Ultra-Low Distortion
Provides highly accurate and transparent sound reproduction.
Powerful Audio Output
Capable of driving demanding speakers with ease.
Excellent Dynamic Performance
Improves bass impact and transient response.
Wide Frequency Response
Maintains balanced and detailed audio across the full sound spectrum.
The dual-chip stereo configuration helps maximize performance and channel consistency.
Premium OPA1612A Operational Amplifiers
The amplifier uses dual OPA1612A operational amplifiers for high-quality audio signal processing.
The OPA1612A is widely appreciated in audiophile systems for its:
Extremely Low Noise
Helps create a cleaner audio background.
High Resolution Audio Reproduction
Improves detail retrieval and tonal accuracy.
Better Stereo Imaging
Enhances instrument separation and soundstage performance.
Smooth and Natural Sound
Delivers a refined listening experience across different music genres.
These premium op-amps contribute significantly to the amplifier’s audiophile-grade sound signature.
Advanced PFFB Structure for Improved Sound Accuracy
The 3e Audio A7 features PFFB technology, also known as Post Filter Feedback architecture.
Better Frequency Stability
Maintains accurate sound performance across different speaker loads.
Improved Speaker Compatibility
Works effectively with a wide range of speaker impedance levels.
Lower Distortion Performance
Enhances tonal accuracy and sound transparency.
More Balanced Audio Reproduction
Provides cleaner and more controlled sound output.
PFFB technology is an important feature that improves the overall sound quality of modern Class D amplifiers.
Flexible Input Connectivity
The 3e Audio A7 supports multiple audio input methods for different audio systems.
Single-Ended RCA Input
Perfect for DACs, streamers, CD players, and traditional audio devices.
Balanced XLR / 6.35mm Combo Input
Professional-grade balanced connection for cleaner signal transmission.
This combination allows the amplifier to integrate easily into both home and professional audio systems.
Advantages of Balanced XLR Input
Balanced audio input offers several important benefits.
Reduced Noise Interference
Balanced signals minimize unwanted electrical noise.
Better Signal Integrity
Improves audio quality across longer cable distances.
Higher Dynamic Performance
Preserves audio detail and signal accuracy.
Professional System Compatibility
Perfect for high-end DACs and studio audio devices.
Audiophiles and professional users will especially appreciate the balanced input flexibility of the A7.
Outstanding Audio Performance Specifications
The technical specifications of the 3e Audio A7 demonstrate its premium engineering quality.
Extremely Low THD+N Performance
RCA Input
0.0007% @ 4Ω
0.0006% @ 8Ω
XLR Input
0.0006% @ 4Ω
0.0005% @ 8Ω
Ultra-low distortion ensures exceptionally clean and natural sound reproduction.
High Signal-to-Noise Ratio
RCA Input
123dB
XLR Input
126dB
The high SNR helps produce a quieter background and more detailed audio playback.
Excellent Dynamic Range
Dynamic range reaches up to 126dB for highly expressive music reproduction.
Wide Frequency Response
20Hz–35KHz frequency response provides accurate full-range audio performance.
These specifications place the A7 firmly in the audiophile amplifier category.
Powerful Stereo Output Performance
The 3e Audio A7 delivers impressive output power for demanding speaker systems.
Output Power at 4 Ohms
1% THD+N
2 × 250W
10% THD+N
2 × 300W
Output Power at 8 Ohms
1% THD+N
2 × 140W
10% THD+N
2 × 180W
This powerful output capability allows the amplifier to drive a wide range of speakers confidently.
Ideal for Bookshelf Speakers
Excellent control and clarity for compact HiFi systems.
Perfect for Floor-Standing Speakers
Enough power for larger speaker setups.
Great for Home Stereo Systems
Powerful and immersive music listening experience.
Suitable for Professional Audio Applications
Balanced input support improves flexibility for advanced setups.
The A7 provides a strong balance of power, precision, and efficiency.
Excellent Channel Separation and Crosstalk Performance
The amplifier offers impressive stereo imaging performance.
Crosstalk Performance
RCA Input
-100dB
XLR Input
-110dB
Lower crosstalk helps improve:
Stereo Imaging
More accurate left and right channel separation.
Instrument Positioning
Better spatial detail and soundstage depth.
Listening Immersion
Creates a more realistic and engaging audio experience.
This contributes significantly to the amplifier’s premium HiFi sound quality.
Ultra-Low Noise Performance
The 3e Audio A7 maintains an extremely low noise floor.
Noise Levels
RCA Input
Below 20uVrms
XLR Input
Below 15uVrms
Low noise performance is essential for high-resolution music playback and sensitive speaker systems.
Users can enjoy clearer musical detail without unwanted hiss or interference.
Adjustable Gain Options
The amplifier provides multiple gain settings for system flexibility.
RCA Gain Options
26dB / 29dB
XLR Gain
20dB
These adjustable gain settings allow better matching with various DACs, preamplifiers, and source devices.
Wide Speaker Compatibility
The 3e Audio A7 supports speaker impedance from 2Ω to 16Ω.
Better Flexibility
Compatible with many different speaker types.
Stable Amplifier Operation
Maintains reliable performance across different speaker loads.
Easier System Building
Suitable for both beginner and advanced HiFi systems.
This broad compatibility makes the amplifier highly versatile.
Efficient Power Consumption
Despite its strong output capability, the amplifier remains energy efficient.
Power Consumption
OFF Mode
Less than 0.4W
ON Without Audio
9W
The efficient Class D architecture reduces unnecessary power usage while maintaining excellent performance.
Compact and Minimalist Design
The 3e Audio A7 delivers powerful performance in a compact chassis.
Dimensions
170 × 168 × 46 mm
Weight
1 KG
The compact design makes it suitable for:
Desktop Audio Systems
High-performance sound without taking much space.
Home Stereo Setups
Easy placement on shelves and entertainment units.
Minimalist HiFi Systems
Clean and modern appearance.
Its small footprint makes it ideal for modern audio environments.
High-Quality Power Supply Included
The amplifier includes a 48V 5A power adapter compatible with both 110V and 230V systems.
Stable Power Delivery
Ensures consistent amplifier operation.
Improved Dynamic Performance
Supports strong bass response and transient accuracy.
Reliable Long-Term Use
Designed for stable and safe daily operation.
The dedicated power supply helps maximize amplifier performance.
Package Contents
The package includes:
3e Audio A7 Amplifier
Original Class D stereo power amplifier.
48V 5A Power Adapter
High-quality power supply unit.
Everything required for setup is included in the box.
Ideal for Audiophiles and Serious Music Lovers
The 3e Audio A7 is ideal for:
Audiophiles
Exceptional clarity and low distortion.
Desktop Audio Enthusiasts
Compact but highly powerful amplifier.
Home HiFi Users
Premium stereo music playback experience.
Professional Audio Systems
Balanced XLR input support improves flexibility.
Speaker Upgrade Users
Drives demanding speakers with ease.
Its combination of power, transparency, and efficiency makes it highly attractive for advanced audio systems.
Why Buy 3e Audio A7 from Audio Phonic
Audio Phonic is a trusted source for premium HiFi audio equipment in Bangladesh.
When purchasing from Audio Phonic, customers receive:
Original 3e Audio Products
Guaranteed authentic amplifier with premium quality assurance.
Competitive Price in Bangladesh
Affordable pricing for audiophile-grade equipment.
Professional Customer Support
Reliable assistance for setup and product information.
Trusted Audio Shopping Experience
Audio Phonic is committed to delivering high-quality sound solutions for music enthusiasts across Bangladesh.
FAQs About 3e Audio A7 Class D Stereo Power Amplifier
What amplifier chips are used in the 3e Audio A7?
The amplifier uses dual TI TPA3255 Class D amplifier chips.
Does the 3e Audio A7 support balanced input?
Yes, it supports balanced XLR and 6.35mm combo input.
What operational amplifiers are used in the A7?
The amplifier uses dual OPA1612A operational amplifiers.
What is the maximum output power of the amplifier?
The amplifier delivers up to 2 × 300W at 4Ω under 10% THD+N conditions.
What speaker impedance is supported?
The amplifier supports speakers from 2Ω to 16Ω impedance.
Is the 3e Audio A7 suitable for floor-standing speakers?
Yes, it can easily drive large bookshelf and floor-standing speakers.
What is the frequency response of the amplifier?
The frequency response is 20Hz–35KHz.
Does the amplifier include a power adapter?
Yes, a 48V 5A power adapter is included.
Is the 3e Audio A7 energy efficient?
Yes, the advanced Class D design offers high efficiency with lower power consumption.
Where can I buy the 3e Audio A7 in Bangladesh?
You can purchase the original 3e Audio A7 Class D Stereo Power Amplifier from Audio Phonic in Bangladesh.





















