Ampapa D1 2 Channel Bluetooth Amplifier HIFI Class D Amp w/ VU Meters
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A: The D1's 12V Trigger uses a TRS connection. Please use a TRS cable (compatible with both TS and TRS jacks) to link to the trigger output of your other devices. Q: Can I replace the op-amps in the D1?
A:Yes, the D1 uses 2PCs pluggable NE5532 op-amps,which can be replaced by normal dual op-amps like 2604/2134/muses02 etc. Before replacing, please turn off the power, ensure correct orientation, and power ononly after confirming proper installation. Q: Why don't the single VU meter and spectrum display work properly?
A: In dual VU meter mode, both meters show the audio levels for the left and right channels separately.In single VU meter and spectrum modes, the D1 only detects the left channel input. If only the right channel is connected, the VU meter and spectrum display will not operate. Q: Does the high-pass filter affect the Pre-Out signal?
A:No,the high-passfilteronly applies to the speaker output. The Pre-Out delivers a full-range signal. Q: Are the Pre-Out's volume and tone controls synchronized with the speaker output?
A: Yes. Q: Is it normal for the D1 to become hot during operation?
A: The D1's TPA3255 amp chip dissipates heat through contact with the chassis. It is normal for the chassis to heat up during operation. This does not affect performance or lifespan of the D1. Please place the D1 in a well-ventilated area,and avoid stacking devices or blocking ventilation. Q: What is the required power supply for the D1?
A:The D1 requires a DC 24-48V (≥4A) input voltage. Please use the supplied power adapter for optimal performance. lf using a third-party power supply,ensure it meets the required voltage and current specifications. Q: Why doesn't the remote control include batteries?
A:For safer and faster delivery, the remote control may not include batteries (AAA*2). Please prepare them yourself. Parameters
Beijing(CN) Monday-Friday 09:00 AM - 18:00 AM New York(US)
Sunday to Thursday 08:00 PM - 05:00 AM London(UK) Monday-Friday 01:00 AM - 10:00 AM Paris(FR) Monday-Friday 02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
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Sign Up Now ! Ampapa D1 2 Channel Bluetooth Amplifier HIFI Class D Amp w/ VU Meters Display Item description Features- Ampapa × Douk Audio Collaboration: Built on the acclaimed Douk Audio A5 amp, the D1 retains core features like TPA3255 chip, HPF, PRE-OUT, socketed op-amps—now upgraded with digital VU display, TRS balanced input, Bluetooth 5.2, treble/bass control, remote and more for next-gen HiFi performance.
- Digital VU Meters with Retro Soul: D1 features a vibrant OLED screen that merges classic aesthetics with modern utility. Enjoy 7 VU styles in classic yellow, blue, or black and view real-time feedback of all operations and playback. Both stylish and functional, it brings your music to life.
- Engineered for True 2.1 Systems: The adjustable 30–200Hz high-pass filter removes low frequencies from the main output, letting your stereo speakers focus on mids and highs with better clarity, while PRE-OUT offers full-range signal to active subwoofers, amplifiers, or active speakers.
- Premium Components for Superior Fidelity: Pluggable NE5532 op-amps allow for effortless upgrades, while PFFB technology eliminates load dependency, enhancing performance and sound quality. From NJW1194 chip, SAGAMI inductors, 2oz copper PCB to GaN 48V/5A power adapter, every element is chosen for sonic purity.
- Engineered for Everyday Convenience: With a 12V trigger via TRS cable, infrared remote, one-touch mute and Bluetooth reset, D1 simplifies your daily audio setup. Fine-tune your sound with ±10dB tone control, while internal RGB lighting adds a refined, modern glow. Enjoy seamless operation from start to finish.
A: The D1's 12V Trigger uses a TRS connection. Please use a TRS cable (compatible with both TS and TRS jacks) to link to the trigger output of your other devices. Q: Can I replace the op-amps in the D1?
A:Yes, the D1 uses 2PCs pluggable NE5532 op-amps,which can be replaced by normal dual op-amps like 2604/2134/muses02 etc. Before replacing, please turn off the power, ensure correct orientation, and power ononly after confirming proper installation. Q: Why don't the single VU meter and spectrum display work properly?
A: In dual VU meter mode, both meters show the audio levels for the left and right channels separately.In single VU meter and spectrum modes, the D1 only detects the left channel input. If only the right channel is connected, the VU meter and spectrum display will not operate. Q: Does the high-pass filter affect the Pre-Out signal?
A:No,the high-passfilteronly applies to the speaker output. The Pre-Out delivers a full-range signal. Q: Are the Pre-Out's volume and tone controls synchronized with the speaker output?
A: Yes. Q: Is it normal for the D1 to become hot during operation?
A: The D1's TPA3255 amp chip dissipates heat through contact with the chassis. It is normal for the chassis to heat up during operation. This does not affect performance or lifespan of the D1. Please place the D1 in a well-ventilated area,and avoid stacking devices or blocking ventilation. Q: What is the required power supply for the D1?
A:The D1 requires a DC 24-48V (≥4A) input voltage. Please use the supplied power adapter for optimal performance. lf using a third-party power supply,ensure it meets the required voltage and current specifications. Q: Why doesn't the remote control include batteries?
A:For safer and faster delivery, the remote control may not include batteries (AAA*2). Please prepare them yourself. Parameters
- Brand: Ampapa
- Model: D1
- Audio input: RCA/TRS/Bluetooth 5.2
- Audio output: Banana speaker jacks / Pre-Out
- Max. output power: 300W*2 (4Ω）
- THD+N: 0.002%
- SNR: ≥114dB
- Frequency response: 20Hz-20KHz (±0.4dB)
- High-pass filter frequency range: 30Hz-200Hz
- High-pass fiter roll-off: 12dB per octave
- Bluetooth chip: QCC304X
- Bluetooth supported codecs: SBC/AAC/aptX/aptX-HD
- Input sensitivity: RCA: 2V TRS: 4V
- Pre-out rated output level: 3.5V
- Matched speaker impedance: 4-8Ω
- Treble/bass range: ±10dB
- Input voltage: DC 24-48V/ ≥4A (5.5*2.5mm)
- Dimensions (W*D*H): 155*124*42mm / 6.10*4.88*1.65in
- Package dimensions (W*D*H): 268*192*95mm / 10.55*7.56*3.74in
- Net weight: 742g / 1.64lb
- Package weight: 1.73kg / 3.81lb
- 1* D1 Amp
- 1* DC 48V5A GaN Power Adapter
- 1* Remote Control
- 1* Bluetooth Antenna
- 1* Cleaning Cloth
- 1* Certificate
- 1* Warranty
- 1* Manual
- The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver.
Free Return Within 30 Days
1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes).
If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied.
About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers’ listening experience. Contact us Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working timeBeijing(CN) Monday-Friday 09:00 AM - 18:00 AM New York(US)
Sunday to Thursday 08:00 PM - 05:00 AM London(UK) Monday-Friday 01:00 AM - 10:00 AM Paris(FR) Monday-Friday 02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation.
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