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Authentic Tube Amplification
Fosi Audio P3 Tube Preamplifier/Headphone Amp
Experience the unique charm from vacuum tubes.
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Please ensure that your turntable has a built-in preamp to ensure compatibility with the P3 preamp.
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Audiophile-Grade Capacitors
Built-in quality Japanese ELNA caps for outstanding performance.
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Qualcomm aptX Bluetooth QCC3031 Chip
Supports multiple codecs formats: SBC/AAC/aptX/aptX HD/aptX LL.
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Logarithmic Potentiometer
Helps to achieve a fine volume tuning to match human ear's auditory characteristics.
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Effortless Insertion & Removal
Suitable for 7-pin vacuum tubes. Please align each pinhole before installation.
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DIY Your Stereo System
Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5, etc. vacuum tubes.
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5654W Vacuum Tubes
Experience the unique charm from vacuum tubes.
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The Synthesis of Tech and Nature
Embracing technology, staying close to nature, and maintaining global climate awareness.
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Exquisite Craftsmanship
Utilizing CNC integrated molding, precise sandblasting, and meticulous detailing.
Key Parameters
- Signal-to-Noise Ratio≥103dB
- Noise Floor: 64uV
- Crosstalk: 95dB
Mode Indicator
- RCA mode: steady red light
- Bluetooth pairing mode: blue light flashing
- Bluetooth connection built: steady blue light
Bluetooth Connectivity
- Bluetooth Range: ≥10m
- Bluetooth Version: 5.1
- Bluetooth Name: Fosi Audio P3
Bluetooth Reset
Press and hold for 3 seconds to clear Bluetooth pairing to solve the problem of Bluetooth being mistakenly connected by others.
P3
Comparison Chart
Headphone Amp+Preamp | Type | Headphone Amp+Preamp |
- | MAX Power Output | - |
Bluetooth + RCA | Input | AUX + RCA |
RCA+Headphone+AUX | Output | 3.5 mm + 6.35 mm |
| | Treble& Bass Control | |
≤ 0.02% | THD | ≤0.03% |
≥103dB | SNR | ≥ 95dB |
Headphone Amp+Preamp | Type | Phono Preamp |
- | MAX Power Output | - |
Bluetooth + RCA | Input | RCA |
RCA+Headphone+AUX | Output | RCA + Headphone |
| | Treble& Bass Control | |
≤ 0.02% | THD | ≤ 0.08% |
≥103dB | SNR | ≥ 70dB |
Headphone Amp+Preamp | Type | Phono Preamp |
- | MAX Power Output | - |
Bluetooth + RCA | Input | Bluetooth+ AUX+ RCA |
RCA+Headphone+AUX | Output | RCA |
| | Treble& Bass Control | |
≤ 0.02% | THD | ≤ 0.1% |
≥103dB | SNR | ≥ 70dB |
Headphone Amp+Preamp | Type | Phono Preamp |
- | MAX Power Output | - |
Bluetooth + RCA | Input | RCA+3.5mm AUX |
RCA+Headphone+AUX | Output | RCA+3.5mm AUX |
| | Treble& Bass Control | |
≤ 0.02% | THD | ≤0.1% |
≥103dB | SNR | ≥70dB |
- P2
- BOX X1
- BOX X3
- BOX X4
Staci K
Reviewed in the United States on March 2, 2025
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カスタマー
Reviewed in Japan on February 17, 2025
この商品は、インテリアとても良いと思います。まず真空管部分ですが、通常はオレンジ色の電球色のみですが、青混じりで光ます。音に関しても充分な出力があり絞って使用しています。間に改造修理したイコライザーをかませていますが相性バッチリでした。DACからイコライザーに繋ぎイコライザーから二つのアンプに分岐して電源Switch切り替えでヘッドホンとスピーカーの切り替えをしています。スピーカーの音とヘッドホンの音が近い音質で聞こえるので違和感なくかなり良いです！！pcの純正ジャックに繋ぐと同じイコライザー繋いでいない為音が違うのは当たり前ですが、やっぱり耳に突き刺さりました。それぞれ個人独特の環境作るのに役立つと思います。
Mr James Farrant
Reviewed in Saudi Arabia on January 15, 2025
good bluetooth connectivity and mediocre sound processing ... I use mine in line with the X2 preamp for my turntable. Well built
Customer
Reviewed in the United States on December 21, 2024
I love how simple this little pre-amp is. The unit boast decent specs too, with SNR above 103 db. The volume and tone control knobs are small, but even my big hands manage to use them OK. The tone controls are not linear, but are useful once you get used to using very small adjustments, and work very well and very silently. The main reason I was attracted to this particular unit was that it had BlueTooth 5.1, which is a big sonic improvement, now that I've heard it. Auto pairing can be a bit of a bother if you use your phone's bluetooth for other things. At this price this little Fosi Audio P3 is both a bargain and a sonic suprise, worth every penny.
Christopher
Reviewed in Sweden on December 19, 2024
Absolutely fantastic headphone amplifier.You get completely free control of the sound profile you want.The customer support is also absolutely fantastic and will help you with absolutely anything you need.Very very highly recommended!
Oğuzhan Avran
Reviewed in Turkey on October 13, 2024
Basslara ve tizlere etkisi inanılmaz.
Gary
Reviewed in the United States on April 17, 2024
I bought an Audio-Technica record player a while ago along with some powered speakers, but they weren't providing the sound I was looking for. Even though the AT turntable has a preamp, it just wasn't delivering the full sound I wanted. I kept seeing recommendations for preamps, so I took a chance with this one. I am so glad I did!!This preamp made a huge difference in adding the bass and punch my system needed! How much of a change did this make? I'll put it into perspective. Imagine having a lamp with a 25-watt bulb and then you switch the bulb out with a 75-watt bulb. You end up with a much brighter and better light that makes everything brighter and easier to see. Now, back to the preamp, adding this made the music brighter, and fuller and increased the bass!!That alone is amazing, but this preamp also has a headphone jack and Bluetooth! I can play music from the turntable or my phone or iPad through it and it sounds incredible! I was considering adding a subwoofer before I bought this preamp, now I'm wondering if I even need one since this added the low-end sound my system was lacking. Yes, it improves the sound that much...well, to me anyway.The small tubes that it comes with are not installed when you get the preamp, so you have to install them yourself and it can be a little bit of a challenge to line up all the prongs, but it's worth it. One of the tubes went in fairly easily and the other tube took a little while to get all the prongs lined up to fit in the holes, but I'm very happy with this purchase.If you're looking for an affordable tube style preamp, give this one a try!
joqueval
Reviewed in Spain on November 5, 2023
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