
Ampapa D1 Class D DAC Amplifier
Key Features
- Working method: Class D All In One DAC Amplifier
- Output power: 300W × 2 @ 4Ω
- Total Harmonic Distortion: 0.002%
- Dynamic Range : ≥114dB
- Frequency response: 20Hz–20kHz
- Input: RCA /TRS/Bluetooth 5.2
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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
Ampapa D1 Class D DAC Amplifier
The Ampapa D1 Class D DAC Amplifier is a next-generation HiFi amplifier designed for modern audiophiles who demand premium sound quality, advanced connectivity, and elegant visual aesthetics. Developed through the collaboration between Ampapa and Douk Audio, the D1 combines powerful Class D amplification, digital DAC functionality, balanced audio input, Bluetooth 5.2, and customizable sound tuning into a compact and highly versatile system.
Designed for desktop HiFi setups, home stereo systems, and advanced 2.1 channel audio configurations, the Ampapa D1 delivers exceptional clarity, powerful output, and outstanding sonic precision.
Premium HiFi Amplifier Designed for Modern Audio Enthusiasts
The Ampapa D1 is not just another compact amplifier. It is built specifically for listeners who value clean sound reproduction, powerful output, and advanced sound customization.
Core Features
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High-performance TPA3255 amplifier chip
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Built-in DAC amplifier system
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Bluetooth 5.2 wireless streaming
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OLED digital VU display
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Balanced TRS input support
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Adjustable high-pass filter
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Remote control functionality
This combination makes the D1 a premium all-in-one HiFi solution.
Advanced TPA3255 Class D Amplifier Technology
At the heart of the D1 lies the powerful Texas Instruments TPA3255 amplifier chip.
Benefits of TPA3255
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High efficiency Class D amplification
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Extremely low distortion output
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Superior dynamic range
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High power capability
Output Power
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Maximum output: 300W × 2 @ 4Ω
Audio Performance
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Strong bass response
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Detailed midrange clarity
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Smooth high frequencies
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Clean sound even at high volume
This amplifier is capable of driving demanding bookshelf and floor-standing speakers with ease.
Built-In DAC for Superior Digital Audio Performance
The D1 integrates DAC functionality directly into the amplifier.
DAC Benefits
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Improved digital signal processing
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Cleaner audio decoding
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Better detail retrieval
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Enhanced sound precision
Advantages
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Reduced signal loss
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More natural soundstage
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Better channel separation
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Improved audio realism
This makes the D1 ideal for high-resolution music playback.
Bluetooth 5.2 with Advanced Codec Support
Wireless audio streaming is one of the key highlights of the D1.
Bluetooth Features
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Bluetooth version: 5.2
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QCC304X Bluetooth chipset
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Supports SBC, AAC, aptX, aptX-HD
Benefits
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Stable wireless connection
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Low latency performance
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High-resolution wireless audio
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Better signal efficiency
You can stream music directly from smartphones, tablets, and laptops with excellent audio quality.
Stunning OLED Digital VU Meter Display
The D1 features a modern OLED VU display that combines retro charm with advanced functionality.
Display Features
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Multiple VU meter styles
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Real-time playback monitoring
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Multiple color themes
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Playback status visualization
Benefits
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Vintage HiFi aesthetics
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Better user interaction
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Stylish desktop appearance
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Enhanced listening atmosphere
This unique display adds personality and elegance to any audio setup.
True 2.1 Audio System Support
The Ampapa D1 is engineered specifically for advanced 2.1 audio systems.
High-Pass Filter System
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Adjustable frequency range: 30Hz–200Hz
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Roll-off slope: 12dB per octave
Benefits
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Removes low-frequency load from stereo speakers
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Improves vocal and midrange clarity
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Optimizes subwoofer integration
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Cleaner stereo imaging
PRE-OUT Functionality
The PRE-OUT allows connection to:
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Active subwoofers
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External power amplifiers
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Active speakers
This provides exceptional flexibility for audio system expansion.
Balanced TRS Input for Cleaner Signal Transmission
The D1 includes balanced TRS input support for professional-grade audio performance.
TRS Input Benefits
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Lower electrical interference
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Cleaner signal transmission
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Reduced background noise
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Improved audio stability
Input Options
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RCA input
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Balanced TRS input
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Bluetooth input
This ensures compatibility with a wide variety of audio sources.
Premium Internal Components for Audiophile Performance
Every component inside the D1 is carefully selected for sound quality and reliability.
High-End Components
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Pluggable NE5532 operational amplifiers
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NJW1194 audio processor chip
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SAGAMI inductors
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2oz copper PCB
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GaN 48V/5A power adapter
Benefits
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Superior signal integrity
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Better heat management
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Lower distortion levels
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Long-term durability
These components contribute significantly to the amplifier’s audiophile-grade performance.
PFFB Technology for Enhanced Sound Accuracy
The D1 utilizes advanced PFFB technology.
What PFFB Does
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Reduces load dependency
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Improves frequency consistency
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Enhances amplifier stability
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Minimizes distortion
Listening Benefits
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More accurate sound reproduction
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Balanced tonal response
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Cleaner bass performance
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Improved stereo imaging
This technology helps maintain sound quality across different speaker loads.
Customizable Sound Tuning Controls
The D1 offers advanced sound adjustment options.
Tone Controls
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Treble adjustment: ±10dB
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Bass adjustment: ±10dB
Benefits
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Personalized sound signature
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Better room acoustics matching
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Enhanced music enjoyment
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Suitable for different genres
Users can easily fine-tune the sound according to their listening preference.
Convenient Remote and Smart Control Features
The D1 is designed for easy everyday use.
Convenience Features
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Infrared remote control
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One-touch mute function
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Bluetooth reset button
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12V trigger support
Benefits
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Simple operation
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Fast source switching
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Easy wireless management
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Improved home audio integration
This makes the amplifier highly user-friendly.
Compact Yet Powerful Design
Despite its powerful performance, the D1 maintains a compact footprint.
Physical Specifications
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Dimensions: 155 × 124 × 42 mm
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Net weight: 742g
Design Advantages
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Space-saving desktop design
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Easy placement
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Minimalist appearance
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Premium aluminum construction
This makes it ideal for both desktop and living room setups.
Exceptional Audio Specifications
The D1 delivers impressive technical performance.
Audio Specifications
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THD+N: 0.002%
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SNR: ≥114dB
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Frequency response: 20Hz–20kHz (±0.4dB)
Benefits
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Ultra-clean sound
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Extremely low distortion
-
High dynamic range
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Detailed musical reproduction
This level of performance is excellent for audiophile listening.
Speaker Compatibility
The D1 supports a wide range of speakers.
Supported Speaker Types
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Bookshelf speakers
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Floor-standing speakers
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Desktop HiFi speakers
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Passive stereo speakers
Impedance Support
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4–8Ω compatible speakers
This ensures flexible speaker pairing options.
Ideal Applications of Ampapa D1
The D1 is suitable for various audio environments.
Desktop HiFi Setup
Compact size and premium sound make it perfect for desks.
Home Stereo System
Provides rich and immersive music playback.
TV Audio Upgrade
Improves television audio performance significantly.
Audiophile Listening Room
Excellent for critical listening and high-resolution music playback.
Why Choose Ampapa D1 from Audio Phonic
At Audio Phonic, we focus on delivering premium HiFi solutions with authentic performance and lasting reliability. The Ampapa D1 stands out because of its modern features, exceptional sound quality, and elegant design.
Key Advantages
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Powerful TPA3255 amplifier
-
Built-in DAC functionality
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Bluetooth 5.2 with aptX-HD
-
OLED digital VU display
-
True 2.1 audio support
-
Balanced TRS input
-
Premium audiophile components
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Ultra-low distortion performance
This makes it one of the best compact DAC amplifiers available today.
Technical Specifications Summary
General
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Brand: Ampapa
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Model: D1
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Type: Class D DAC Amplifier
Audio Inputs
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RCA
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TRS
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Bluetooth 5.2
Outputs
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Banana speaker jacks
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PRE-OUT
Power Output
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300W × 2 @ 4Ω
Audio Performance
-
THD+N: 0.002%
-
SNR: ≥114dB
-
Frequency response: 20Hz–20kHz
Bluetooth
-
QCC304X chipset
-
SBC / AAC / aptX / aptX-HD
Filter System
-
High-pass filter: 30Hz–200Hz
-
Roll-off: 12dB per octave
Physical
-
Dimensions: 155 × 124 × 42 mm
-
Net weight: 742g
Frequently Asked Questions (FAQs)
What is the Ampapa D1 used for?
It is used for HiFi stereo amplification with DAC functionality and wireless audio streaming.
Does the D1 support Bluetooth?
Yes, it supports Bluetooth 5.2 with aptX and aptX-HD codecs.
Can I connect a subwoofer?
Yes, the PRE-OUT supports active subwoofer connection for 2.1 audio systems.
What speakers are compatible with the D1?
It supports passive speakers with 4–8Ω impedance.
Does it have balanced input?
Yes, it includes a TRS balanced input for cleaner audio transmission.
What is the maximum output power?
The amplifier delivers up to 300W × 2 at 4Ω.
Is the OLED display functional?
Yes, it provides real-time playback and VU meter visualization.
Can the sound be customized?
Yes, it offers adjustable bass and treble controls up to ±10dB.
Is it suitable for desktop audio systems?
Yes, its compact size makes it perfect for desktop HiFi setups.
What makes the D1 different from standard amplifiers?
Its combination of DAC functionality, OLED VU display, Bluetooth 5.2, balanced input, and premium internal components makes it a true audiophile-grade amplifier.



















