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  • Nobsound NS-08E Vacuum Tube Integrated Amplifier Mini Audio HiFi Stereo Headphone Amp

    Notice: Please turn on the amplifier for about 15 seconds before you connect the audio source and put on the headset. We recommend using 24~600Ω headphones, while armature earphones and headphones that have low resistance and high sensitivity are not suitable. As there will be tube Microphone effect, please keep the amplifier steady while using it. For noise issue, please keep it away from devices like routers, mobile phones or something that may interfere in the audio signal. If there are no interference, please remove all input and listen to see if the noise still exists. If so, the device may be defective and you can contact us to get support. Specifications: Output power: ≥1100 mW (32 ohm) Headphone Adapter Impedance: 18-600 ohm Total harmonic distortion:

    • ASIN: B014FASL1A
    • Brand: Nobsound
    • ASIN: B014FASL1A
    • UPC: 769700919653
    • Part No: 769700919653

  • LOXJIE P20 Full Balance Tube Amplifier Headphone Power Amplifier (Red)

    P20 is Loxjie's first full balance tube amplifier headphone power amplifier!It use the military grade 6N3 tube,Plus the well-designed and calibrated amplifier circuit! Let the amplifier have lower distortion under the premise of ensuring"Tube Style"!And the P20 also has true balanced inputs and outputs!This can maximize the performance of the headphones! Specification Output Power Unbalanced headphones 32Ω: 385mW 64Ω: 210mW 150Ω: 105mW 300Ω: 55mW 600Ω: 29mW Balanced headphones 32Ω: 425mW 64Ω: 665mW 150Ω: 565mW 300Ω: 325mW 600Ω: 175mW THD+N: 0.02% THD+N: 0.006% SNR: 97dB SNR: 102dB Power Consumption: 10W Standby power: 0.5W Size: 148x70x128(WxHxD) Weight: 600g

    • ASIN: B07H5JLD2Q
    • Color: Red
    • Brand: LOXJIE
    • ASIN: B07H5JLD2Q
    • Part No: P20

  • Little Dot MK2 MKII 6J1 X 2 6N6 X 2 Tube Standard Hybrid Headphone Headphone Amp Pre-Amp Tube Amplifier (MKII)

    SEPP (Single ended Push Pull) OTL in Class A Input: Gold Plated Unbalanced (RCA) Jacks Output: 1/4\" Gold Plated Stereo Headphone out Driver Tubes: 6JI Power Tubes: 6N6 Frequency Response: 20HZ ~ 50KHz (minus 1 dB) THD plus N: 0.1 percent (50mW into 300 ohms) Suitable Headphone Impedance: 32 ~600 ohms Input Impedance: 50K ohms Pre Amplifier Output Impedance: 600 ohms Pre Amplifier Gain: 3~10x (also controlled via gain switches) Pre Amplifier Voltage: 10V RMS Pre Amplification circuit includes both driver and power tubes Power Output: 300mW into 300 ohms 200mW into 120 ohms 100mW into 32 ohms Power Consumption: 28W (228V x 0.124A) Metric: 210mm (length) by 110mm (width) by 130mm (height) English: 8.26 inches (length) by 4.33 inches (width) by 4.18 inches (height) Weight: 2.5 kg or 5.5 lbs.v

    • ASIN: B00A2QMAI2
    • Color: MKII
    • Brand: AIMPIRE
    • ASIN: B00A2QMAI2
    • UPC: 620013013998
    • Part No: LDI+

  • Sabaj PHA3 Vacuum Tube Headphone Amplifier 2X6J9 Low Ground Noise Integrated Stereo Amp Audio HiFi Output Protection for Headphone

    Input Interface: 3.5 mm Stereo Jack Output Power: 32 Ω: 115mW 64 Ω: 77 mW 150 Ω: 39 mW 300 Ω: 20 mW THD+N: 0.032% SNR: 95dB Consumption Power: 5.5W Frequency Response: 20Hz-20kHz Residual Noise: 0.02mV

    • ASIN: B07D525SB7
    • Color: Black
    • Brand: Sabaj
    • ASIN: B07D525SB7
    • Part No: PHA3

  • DarkVoice 336SE Headphone Tube Amplifier

    Products Introduction - Tube Used : 6N8P, 6N5P(6080, 6080g, 6080w, 6AS7, 6AS7g, 6AS7w) - Colour: Black, Silver - Frequency: 10Hz~20kHz+/-1dB - Distortion:

    • ASIN: B00CF9JON8
    • Color: Red./
    • Brand: DarkVoice
    • ASIN: B00CF9JON8
    • UPC: 633420125468
    • Part No: 1

  • Stereo Hybrid Tube Amplifier - ACIN Class AB 25W Bluetooth Integrated Power Amplifier with Headphone Out, USB

    This stereo integrated amplifier offers impressive powerful sound. Thanks to its hybrid design (2 x 6P1, 2 x 6N1 vacuum tubes) it provides richness of sound synonymous with pure valve amplification. A built-in headphone output is a perfect choice for those who prefer discrete listening. If someone is looking for a small sound system for a 30sqm room and wants it to be able not only to sound (and look) attractive, but also to be multi-functional.... the choice of ACIN TA-10D seems to be a reasonable and completely legitimate. It offers plenty of features, and also provides a very musically pleasant colorful sound and nice appearance and pretty good energy. Besides, it is very attractively priced... Specification: Power Output: 2x25W [email protected]Ω; 2x18W [email protected]Ω S/N ratio: >80dB THD:

    • ASIN: B078J8KJD9
    • Color: black
    • Brand: ACIN
    • ASIN: B078J8KJD9
    • UPC: 889743445619
    • Part No: TA-10D

  • Little Bear B4 Portable Vacuum & Valve Tube Headphone Amplifier HiFi for Phone

    Parameters: Frequency response range: 0-100K-0.1dB Gold-plated input / output socket NE5532 OP chip (can be upgraded to better OP chips like BB or Muse) Original nichicon electrolytic capacitor TOP HiFi Original DALE resistors Precision rings resistance Battery: Lithium batteries, voltage: 12V, 1000mA Charging time: 2-2.5 hours to charging full the battery Working time: 4-4.5 hours Output power: 450mW SNR: 99dB Suggest load impedance: 16-400Ω Color: Black / Silver Size(L*W*D): 115 * 69 * 23 mm / 4.53 * 2.72 * 0.91 in (without knob) Trouble Shooting: Q: Right channel has static. Tried different source and headphones. No help。 A: If there is static noise in one channel, normally it is caused by the tube of that channel. Maybe it has a poor contact after the long shipping process. You can open the chasis and adjust the screw near the tube while listening(contact us and we will give you a photo with marks to help you find it). Also, there is a small possibility that the tube is broken. You can buy a 5899 tube in local shops, which is very normal to see. And we will refund you the cost. Q: It broke just now four loud pops and it's dead. Very disappointed. A: Mainly because the battery is run out of power. Please charge it. If not help, please contact us. Q: The Amp has a lot of el...

    • ASIN: B01K4BLG5C
    • Color: Black
    • Brand: Little Bear
    • ASIN: B01K4BLG5C
    • Part No: 6.24544E+12

  • SENUCN-Audio Tube-T2 Headphone Amplifier, Upgrade Version Vacuum Tube Amplifier Buffer Mini Hi-Fi Stereo Amp, Compatible with Headphone & HiFi Audio Player

    Features: ♫ Provide soft and warm sound while maintaining its exceptional clarity. ♫ 3.5mm AUX and RCA Input, multi-mode support. ♫ Both 3.5mm and 6.35mm headphones support(come with 6.35mm to 3.5mm jacket) ♫Low Ground Noise, no buzzing or ringing when you use. Specifications: Tubes: 6K4 × 2 OP-amp: NE5532 Audio Input: 3.5mm Audio jack, Stereo L / R RCA Audio Output: 6.35mm Headphones Maxpower output: 600 mW / 62Ω, 900 MW / 32Ω, 1 W / 16Ω Frequency range: 20Hz-20 kHz (± 3dB) THD: ≤0, 03% Matching headphone impedance: 16-62 Ω NR: ≥ 95db Operating voltage: DC12V Input sensitivity: 0.2mV Dimension: L99 * W98 * H33 mm Net weight: 0.25 kg Model direct replacement tube: 6j1, 6AK5, EF95, 5654, 403B etc. Notice: 1.Please turn on the amplifier first for about 15-30 seconds before you connect the audio source and put on the headset. 2.Please make sure the power supply is DC 12V(can not exceed the rated voltage), while the current can be higher. 3.If there is a lot of electric noise, please make sure if the power supply you are using is the original power supply in the package, many other power supply with have this problem when using. 4.When you hear drone of the headphone even you do not connect the sound source, please check if you use unshielded signal cables. The...

    • ASIN: B07KJX21MX
    • Color: Black
    • Brand: SENUCN-AUDIO
    • ASIN: B07KJX21MX
    • Part No: CO-04-041-033-BK

  • Nobsound Little Bear P2 Mini 6C11 Vacuum Tube Headphone Amplifier Stereo Hi-Fi Audio Amp; Replaceable Tube and OP AMP; with LED VU Meter Music Audio Spectrum (Black)

    Replaceable Tube and OP AMP: Tube module: 6C11 (in default); EC81; 6R4 OP AMP: TI NE5532 (in default); OPA2111; OPA2604; OPA2132; OP275; OPA2107; JRC4558; MUSES02; LM4562 Spectrum Operation: Normal mode: 1. Press the button for 1 second - Mode switch (there will be a corresponding preview ). 2. Press the button for 3 seconds - Switch between real mode and AGC mode (there will be a corresponding preview ). 3. Press the button for 5 seconds - Enter the speed setting mode 4. Press the button for 10 seconds - Factory default 5. Double click on the button - Adjust the brightness of the light bar, low / medium / high Speed setting mode: (In normal mode, press the button for 5 seconds to enter, press the button for 5 seconds to exit) 1. Press the button for 1 second a. The rising speed of the light bar (7 optional) b. The falling speed of the light bar (7 optional) c. The holding time of the peak (7 optional) d. The falling speed of the peak (7 optional) e. Zoom in / out in real time mode (7 optional) Loop in these functions. 2. Click the button - Loop to change the parameters set. Specifications: Tube: 6C11*2 Input: 3.5mm Gold Jacks Input Impedance: 20K ohms Input Sensitivity: 800mV Output: 3.5mm Gold Jacks Output Impedance: 40 to 300 ohms Output voltage: 24Vp-p Frequency Response: ...

    • ASIN: B075T3SZS1
    • Color: Black
    • Brand: Nobsound
    • ASIN: B075T3SZS1
    • Part No: GFJ527_B

  • Nobsound NS-10P Mini Vacuum Tube Preamp Audio Hi-Fi Stereo Pre-Amplifier Treble & Bass Control

    What's more: For the matching 3.5mm audio cables, please search them on Amazon with ASIN: B073RF3R2D or B073RF4NYS. Please note this is a preamplifier (not like NS-08E), which needs to be connected with amplifiers or active speakers. It is not a phono preamp and can't be used for turntables. It suits for almost all amplifiers in the market especially for tube headphone amps like our NS-08E (B014FASL1A), NS-01E (B01I19SBAW) and NS-02E (B01M7101CY), and will greatly enhance the sound performance of digital amplifiers like our TPA3116 amps (B00WTOAC1M / B074J9X3P5 / B01HD5T4QA / B07548PWQQ). Using Instructions: Phone / Player / MP3 / CD / DAC / Computer -> 3.5mm / RCA audio cable -> NS-10P preamp -> 3.5mm / RCA audio cable -> Amplifier / Headphone amplifier / Active speakers Parameters: Input: AC 100 ~ 240 V; 50 / 60Hz (universal) Output: DC 6V 2000Ma Voltage amplification: 1.5 ~ 2.0 times Audio input / output: standard 3.5mm Power interface: 6V -- 5.5 * 2.5 SNR: >= 110Db Frequency response: 20 ~ 30 KHz Dimensions: 105 * 69 * 32 (65mm height with tubes) Net weight: 205g Packing List: 1 * NS-10P tube preamp 2 * 6J1 tubes 1 * 6V / 2000mA power supply

    • ASIN: B07719G56B
    • Brand: Douk Audio
    • ASIN: B07719G56B
    • Part No: DZ030