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Description
Douk Audio U3 PRO HiFi Mini Class A Headphone AmplifierDescriptions Enhanced Compatibility: with 3. 5mm AUX stereo RCA input and 3. 5mm 6. 35mm headphone jack output, the U3 PRO is compatible with a wide range of audio sources, including MP3 players, iPods, smartphones, tablets, computers, and CD players etc. Its output can connect to various headphones, offering a versatile listening experience with support for most headphone models. Built in Voltage Boost Circuit: adopting innovative circuit design with
Descriptions
- Enhanced Compatibility: with 3.5mm AUX/stereo RCA input and 3.5mm/6.35mm headphone jack output, the U3 PRO is compatible with a wide range of audio sources, including MP3 players, iPods, smartphones, tablets, computers, and CD players etc. Its output can connect to various headphones, offering a versatile listening experience with support for most headphone models.
- Built-in Voltage Boost Circuit: adopting innovative circuit design with built-in voltage boost circuit, the amplifier circuit can always work at a high voltage of ±14V even only powered by DC 5V, and the background noise index is excellent. With wide frequency response extension, excellent transient response, excellent purity and transparency, and good dynamic range.
- Exceptional Output Power: for a total power output of up to 1500mW under a 32Ω load, U3 PRO can easily power headphones with any low or high impedance (18-600Ω). Working in class A status, with ultra-low distortion, the sound is warm and delicate, full and mellow with outstanding sound quality.
- Classic OP+BUF Architecture: U3 PRO adopts OP42 and BUF634, featuring a pure DC amplification circuit. Pluggable op amp socket design, OP42 can be replaced by OP17, AD797, AD843, AD847, and OPA627, convenient to upgrade different op amps and bring much DIY fun and playability for audiophiles.
- Highly Cost-Effective: mini size with exquisite appearance, brings big surprise for all audiophiles, easily to drive most headphones in the market, providing larger power, better sound field and details, very suitable for home/office desktop audio system use.
Sepefications
- Audio input: stereo L/R RCA, 3.5mm AUX
- Audio output: 3.5mm/6.35mm headphone jack
- Output power: ≥1500mW (32Ω)
- Matched headphone impedance: 18-600Ω
- Max output amplitude voltage: ±14V
- Frequency response: 20-30KHz
- SNR: ≥110DB
- Input voltage: DC 5V(≥1A)
- Dimension(W*D*H): 68*92*32mm/ 2.68*3.62*1.26in
- Net weight: 164g / 0.36lb
- Package weight: 300g / 0.66lb
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4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Looks like it will be helpful
Format: Audiobook
I'm not very far into this one yet, but so far, I love it. I bought the kindle and audible versions. It is nice to be able to listen to the exercises to go through them, and to be able to look up the specifics of any exercise. With whisper sync, I can point to an exercise in the kindle, and have audible read it to me. Great.
the exercises I have tried so far seem like they are going to be helpful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2025
★★★★★ 5
Great Resource Even for Non-Professionals
Format: Paperback
I am not a psychotherapist, but I ordered the workbook to learn more about somatics. It’s a very good resource from what I’ve experienced so far. I love how the concepts are plainly explained in (mostly) everyday language. I’m a helper and healer by nature, and I think I will get a lot of mileage out of the well-presented activities in the book. If you’re not a professional but are looking for ways to expand your knowledge of healing, trauma response, and the human body, you’ll like the practical nature of this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2025
★★★★★ 5
What a FANTASTIC resource (WITH PDF FILES!!!)
Format: Paperback
I normally do not write reviews on Amazon, but thought I would do so in this case. I bought the book a few months ago and have really begun to digest the amazing quality of work that has been put into this. Prior to purchase I almost did not buy since someone else noted in their review that there are no PDFs. I reached out to the author, and she was very responsive and warm to my concern and advised there is a link within the book to download the PDFs. Sure enough, the book arrived and I was able to download the digital files! I have used to book and its tools to create two therapy groups that are heavily influenced by the content. After running both groups three times, I nothing but good things to say about this resource. My clients, who initially were resistant to somatic work, have all come around to love this group. In fact, they are two of the more popular groups at my program! Individuals who have been so traumatized that their usual report of "I feel nothing" has shifted. One client has been able to turn her whole narrative of her body being the enemy (for betraying her per trauma) to "my body empowers me. Even when I don't like what it is telling me, it is protecting me and moving me through life." I am so grateful for this book and the different perspective that it provided me in my practice.
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Reviewed in the United States on December 19, 2019
★★★★★ 5
AMAZED
Format: Paperback
This book is an incredible tool to add to the way I practice. I intuitively already used a lot of skills in this book and never realized what I was doing. I've always had this innate understanding that the body plays such an important role in healing. No wonder people gain a ton of weight after sexual trauma, or why we feel so good after exercise, yoga, dance etc. I was trained in a somatic and attachment focused protocol for EMDR and have been so intrigued to learn more about somatic exercises to incorporate with my clients. I'm so excited to start using this material! This has been on my wishlist for a long time, go ahead and buy it! You won't regret it.
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Reviewed in the United States on March 6, 2020
★★★★★ 5
A dog that fulfilled his dream.
Format: Hardcover
It’s a cute story. If you are a dog lover and honor service dogs, you’ll love the book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
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