• Nobsound Bluetooth HiFi 6J2 Vacuum Tube Preamplifier Stereo PreAmp Digital Treble & Bass Tone Control (Black)

    Bluetooth Connection: Some customers may find the Bluetooth can't be connected or found. Here is the solution. 1. Power off the M8 and your phone. 2. Wait for 5s and then power on both. 3. If it still can't be discovered, repeat 1 and 2 and it should work. If the problem can't be solved, please visit https://www.amazon.com/sp?seller=ADPE7GPX91ORE and click "ask a question" to contact us. Troubleshooting: Please note that this product is a preamplifier. It is not an amplifier and needs to be connected with an amplifier or active audio devices. Also, it is not a phono preamp and can't work wit... [Read More]

    • ASIN: B078B7R8RJ
    • ASIN: B078B7R8RJ
    • Brand: Douk Audio
    • Manufacturer: Nobsound

  • ART TubeMPSTV3 Variable Valve Voicing Tube Mic Preamp With Limiter

    ART TubeMPSTV3 Variable Valve Voicing Tube Mic Preamp With Limiter

    • ASIN: B0002E56IA
    • UPC: 840402011446
    • ASIN: B0002E56IA
    • Brand: ART
    • Manufacturer: ART

  • SUCA-AUDIO Tube-T1 Preamplifier, Vacuum Tube Amplifier Buffer Mini Hi-Fi Stereo Preamp with Treble & Bass Tone Control for Home Audio Player (6K4 Tubes)

     Features: 1.All aluminum alloy shell,heavy gold PCB,gold-plated interface. 2.Provide Warmth, Dynamic,Sweet tube coloration feeling.3.Optimize integrated circuit and high quality power adapter to minimize the noise.4.Tubes detechable and replaceable.5.With Treble and Bass control function, high playability. SOMETHING SHOULD BE KNOW- It is NOT a phono preamp for turntable. To order a PHONO Preamp, please visit B07QBXV3CG.- The preamp need to connect with a power amplifier or active speaker, can not connect with a passive speaker directly.- Low-quality audio lines and power adapter will generat... [Read More]

    • ASIN: B07Q656449
    • ASIN: B07Q656449
    • Brand: SUCA-AUDIO
    • Size: Tube-T1 6K4
    • Manufacturer: SUCA-AUDIO

  • FX Audio TUBE-01 6J1 Tube Buffer HIFI Preamplifier (Black)

    Performance: Using classical tube 6j1 design and optimize the route. Tube can be replaced design,soft voice. Patent power conversion module. The first vehicle with DC12V power supply only. All aluminum alloy shell,heavy gold PCB,gold-plated interface. Can match digital power amplifier analog power amplifier,active speakers. Technical: Power supply: DC12V 1A Frequency response: 20HZ(-0.2DB)-20KHZ(-0.2DB) SNR: 100DB Input sensitivity: 300MV-2000MV Output: 3000 mv THD:1000MV 0.1% Size:98x100x32 MM Weight:350g

    • ASIN: B01HEQJGPC
    • ASIN: B01HEQJGPC
    • Brand: FX Audio
    • Manufacturer: FX Audio

  • PreSonus BlueTube DP V2 2-channel Mic/Instrument Tube Preamp

    Enjoy solid-state clarity or tube warmth with the BlueTube DP dual-path mic/instrument preamp, which features both PreSonus’ classic Class A XMAX solid-state mic preamplifier and a high-output,12AX7 tube preamp that operates on voltages double that of other preamps in its class, providing lots of headroom and big tone. A Tube Drive control produces anything from gentle warmth to edgy distortion. With two combo mic/instrument inputs, the half-rackspace BlueTube DP is a great choice for guitars and basses as well as vocals.

    • ASIN: B00E7IP8YE
    • UPC: 673454001727
    • ASIN: B00E7IP8YE
    • Brand: PreSonus
    • Manufacturer: PreSonus

  • Nobsound Little Bear T7 Vacumn Tube Mini Phono Stage RIAA MM Turntable Preamp & HiFi Tube Pre-Amplifier (Black)

    Notice: As a phono preamp, it is suited for MM turntables only. Do not support MC turntables. As an AUX preamp, it is suited for devices like CD, DAC, PC, cellphone. Please note as a phono preamp, it can only work with MM turntables. Please note your turntable should have no built-in phono preamp. If it has, please make sure there is a PHONO OUT/LINE OUT switch and you should put it on PHONO OUT position. We do not recommend using it with class D amplifiers since most class D amplifiers have much noise. Parameters: 1. RIAA phono part: RIAA freq response 20hz-20kHz +/- 0.5dB, S / N ratio>... [Read More]

    • ASIN: B075YQM28P
    • ASIN: B075YQM28P
    • Brand: Little Bear
    • Manufacturer: Douk Audio

  • ART TubeMP Tube Microphone Preamp

    ART TubeMP Tube Microphone Preamp

    • ASIN: B0002GZZNY
    • UPC: 840402011439
    • ASIN: B0002GZZNY
    • Brand: ART
    • Manufacturer: ART

  • AIYIMA Audio 6J1 Tube Preamplifier Bluetooth 5.0 HiFi Treble & Bass Adjustment Audio Preamplifier DC12V Amplifier Preamp NE5532P Chips for Home Theater System(Silver+BT 5.0)

    Parameters Power supply: DC12V 2A (With power supply) Audio input: Bluetooth/ AUX (connected to MP3, computer CD, DVD, mobile phone, etc. ) Audio output: RCA (connected to amplifier, active speaker) Frequency Response:20Hz-20kHz SNR:98dB Control:Potentiometer knob and toggle switch Treble adjustment range:±6dB Bass adjustment range:±10dB Size (L*W*H): 137*104*41MM (without tube height) With treble and bass adjustment Color: Black with Bluetooth 5.0/ Silver with Bluetooth 5.0 1. Using original 6J1 Tube, Bluetooth 5.0 version 2. The main filter capacitor is imported from 1000UF/25V, and the c... [Read More]

    • ASIN: B07QNPXVYQ
    • UPC: 749789527321
    • ASIN: B07QNPXVYQ
    • Brand: AOSHIKE
    • Size: TUBE-A3 Pro
    • Manufacturer: AOSHIKE

  • Pro-Ject Tube Box S2 Phono Preamplifier - Black

    Pro-Ject's Tube Box S2 phono preamplifier with a tube output stage offers unrivalled performance and unique flexibility at an incredibly affordable price. It's one of the most economical ways to enjoy the lush sound of vacuum tube phono gear that we know of, and the ultra-compact size means that the Tube Box S can fit almost anywhere. The sonic quality of Tube Box S2 is extremely impressive, offering a big improvement over Pro-Ject's great sounding Phono Box S. It makes a big improvement over the built-in phono stage on many amps and receivers and offers a perfect upgrade for most analog hi-fi... [Read More]

    • ASIN: B075KPB1P2
    • ASIN: B075KPB1P2
    • Brand: Pro-Ject
    • Manufacturer: Pro-Ject

  • Fosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6J1 Valve & Vacuum Pre-amp with Treble & Bass Tone Control for Home Theater System

    Specifications: Power Supply: DC12V 1A Frequency Response: 20HZ -20KHZ((±3dB) SNR: 98DB THD: 0.1% Control:Potentiometer knob and toggle switch Treble adjustment range: ±6dB Bass adjustment range: ±10dB Audio Inputs/Audio Outputs: Gold-plated RCA Machine Size: 118.5*98*33mm(4.64 * 3.86 * 1.3 inch) Package: 1 x Tube Preamplifier 2 x 6J1 Tube 1 x Power Adapter

    • ASIN: B07GXBF5JS
    • ASIN: B07GXBF5JS
    • Brand: Fosi Audio
    • Manufacturer: Fosi Audio

  • 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). Us... [Read More]

    • ASIN: B07719G56B
    • ASIN: B07719G56B
    • Brand: Douk Audio
    • Manufacturer: Nobsound

  • Nobsound HiFi 6K4 Vacuum Tube Preamplifier, Wireless Audio Hi-Fi Stereo Preamp, Remote Control, Bluetooth, U-Disk, SD Card, 3.5mm AUX, RCA Inputs (Black)

    Features: DC 12V power supply, it is universal and widely used in bedroom, tabletop, office, etc. Combined 6K4 tube and premium Philips blocking capacitor, bring amazing music enjoyment. OLED display, convenient to read using status, combined with remote control, easy to use it. Support multiple connections: Bluetooth/AUX/U disk/SD card Include with 3.5mm headphone jack, can be connected with headphone. Support connects with 2pcs active speakers. Specifications: Tube: 6k4*2 Output Level: 1.9VRMS Frequency Response: ±2 (20Hz-20KHz) THD: 0.2% SNR: 88dB Headphone Output Power: 17mW Headphone TH... [Read More]

    • ASIN: B07HFR92GY
    • ASIN: B07HFR92GY
    • Brand: Douk Audio
    • Manufacturer: Nobsound

  • KGUSS T3 Vacuum Tube Mini Bile 6J1 Preamp Tube Amplifier Buffer Tube Amp HiFi Audio Preamplifier Treble & Bass Adjustment Pre-amps DC12V(Black)

    T3 Tube Preamplifier Tube Buffer Mini PreAmp Audio PreAmp Vacuum Tube Amp SPECIFICATIONS Brand:KGUSS Model:T3 Working Voltage:12V1A Frequency Range:20Hz-20KHz(±3dB) Treble rage:±6dB Bass rage:±10dB SNR:≥98dB THD:≤0.3% Interface Input:RCA Interface Output:RCA Size:117mm*98mm*33mm Weight:0.3kg Notice: 1.Boot sequence: first turn on the T3 preamplifier, then turn on the amplifier or active speaker   Shutdown sequence: first turn off the power amplifier or active speaker, then turn off the T3 preamplifier 2.The new machine may be a bit shy when it is first used. It needs to be down. Th... [Read More]

    • ASIN: B07QY575N4
    • UPC: 796862038069
    • ASIN: B07QY575N4
    • Brand: KGUSS
    • Manufacturer: KGUSS

  • T20 Bluetooth Tube Amplifier Stereo Receiver 2 Channel Class D Digital Mini Hi-Fi Power Amp Preamp Compact Integrated Headphone Amplifier for Home Passive Speakers with 6J4 Vacuum tubes + Power Supply

    Specifications: Tubes: 6J4 x 2; Bluetooth version: Bluetooth 4.2 support apt-X and apt-X low latency; Headphones output: 16-64ohm; Amplifier Chip: TPA3116; Rated output power: 2*50W /4Ω; Audio input: RCA input + Bluetooth input; Audio output: 1 set of Banana Speaker Jacks; Signal to noise ratio: >99dB; Frequency: 20Hz-20KHz; Dimensions: 5.06*3.86*1.3in;  Power supply: DC 24V 4.5A;   Packing List: 1 * Power Amplifier 1 * Power supply  2 * 6J4 tube 1 * Bluetooth antenna

    • ASIN: B07Q26T5N7
    • ASIN: B07Q26T5N7
    • Brand: Fosi Audio
    • Manufacturer: Fosi Audio

  • Nobsound 12AX7 12AU7 Vacuum Tube Preamp HiFi Preamplifier Shigeru WADA Japan Circuit (Assembled)

    Technical Parameters: Input sensitivity: 400mv Voltage output: 2V (RMS THD

    • ASIN: B07F3FDX7C
    • ASIN: B07F3FDX7C
    • Brand: Douk Audio
    • Size: Assembled
    • Manufacturer: Nobsound

  • PreSonus 125082 TubePre V2 Mono Tube Preamp

    Presonus TubePre V2 Single Channel Tube Preamplifier and DI BoxThe masters at PreSonus have been designing preamps for a long time, and they always focus on audio quality first and foremost. Now they’ve upgraded on

    • UPC: 115533116
    • Model: 125082
    • Color: White

  • ART Tube MP Project Series Tube Microphone/Instrument Preamp

    ART Tube MP Project Series Tube Microphone/Instrument

    • UPC: 24278251
    • Model: Tube MP
    • Rating: 4.0

  • Groove Tubes GT-12AY7 Select Preamp Tube

    Groove Tubes GT-12AY7 Select Preamp

    • UPC: 24679493

  • Rolls MP507 Tube Mic Preamp

    The MP507 is a single channel preamp that utilizes a single 12ax7 vacuum tube. It has a MU-Metal audio transformer to decrease noise and enhance the sound quality of the XLR input. The design of

    • UPC: 131399743
    • Model: MP507

  • ART TPS II Tube PreAmp System with Variable Valve Voicing

    ART TPS II Tube PreAmp System with Variable Valve Voicing Designed as the ideal preamp for any application, the tube driven ART TPS II adds warmth and texture to any audio source. The two-channel high

    • UPC: 103708668

  • Bravo Audio V1 Valve Class A Tube Headphone Amplifier Preamp Audio

    Bravo Audio V1 Valve Class A Tube Headphone Amplifier Preamp

    • UPC: 162481528
    • Model: MODB00A2QKTLW

  • ART TubeMPSTV3 Variable Valve Voicing Tube Mic Preamp With Limiter

    ART TubeMPSTV3 Variable Valve Voicing Tube Mic Preamp With

    • UPC: 24278158
    • Model: TUBEMPSTV3
    • Color: Multicolor

  • Two Notes Le Lead - 2-Channel Tube Preamp

    The Two Notes Le Lead's Channel A shines on the fusion of a clean to slight crunch tone of a perfect melody. Kicking in Channel B unleashes the fury of a super tight modern high

    • UPC: 344205695
    • Model: DCTP-LeLead

  • Two Notes Le Bass 2-Channel Tube Bass Preamp

    Why you need the Two Notes Le Bass 2- Channel Tube Bass Preamp:Le Bass is the ultimate bass guitar preamp for the modern age. Channel A is for ultra-fast, responsive and clean playing. Channel B

    • UPC: 189786205

  • Presonus Studio Channel Recording Vacuum Tube Mic Preamp Strip+Isolation Shield

    Package: Presonus Studio Channel Recording Tube Mic Pre-Amp Strip With Compressor And Equalizer Built In + (1) Rockville ROCKSHIELD 3 Large Studio Mic Isolation Shield with Sound Dampening Foam with Sound Dampening

    • UPC: 171662923
    • Model: STUDIOCHANNEL+RMF2

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