Top 10 FX Audio Tube-01 6J1 Tube Buffer HiFi Preamplifier – Audio Component Preamplifiers

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1. FX-AUDIO-

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FX-AUDIO TUBE-03 Tube Preamplifier 6K4 Tube Hi-Fi Tube Preamp with Bass & Treble Control Home Theater Stereo Audio Preamplifier DC 12V Silver

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FX-AUDIO- #ad - Packing lists package includes 1 x tube preamp, 1 x RCA cable, 1 x user manual, 1 x 12v 1a power supply, 2 x 6K4 tubes, 1 x warranty card. It is a great choice for both audiophile and starters. Op chip ne5532 can be replaced by AD827JN / MUSE02. Rca cable comes with package.

High performance component will bring high quality listening experience, low noise and pure sound. This 6k4 vacuum & valve tube is replaceable with 6J1, GE5654. Not for turntables or car audio. It ensures more delicate adjustment of music to achieve pleasant sound quality according to your preference. Comes with 12-month guarantee. This is a preamplifier, not a power amplifier or phono preamp. Rca input & output rca input can connect to smartphone, blu-ray players. Premium material solid and textured aluminum alloy oxidation wiredrawing shell, black immersion gold PCB sheet and gold-plated interface ensures more stable signal transmission, high-temperature resistance.

Bass & treble control the vacuum tube preamplifier has independent bass knob, treble knob, and main volume knob. 6k4 tube and ne5532 chips this tube-03 tube preamplifier is equipped with triodes 6k4 vacuum tube and ne5532 op ic. The vacuum tubes give you a different acoustic enjoyment with dynamic, sweet tube sound enjoyment.
BrandFX-AUDIO- #ad
ManufacturerFX-AUDIO- #ad
Height1.18 Inches
Length3.74 Inches
Weight0.99 Pounds
Width4.72 Inches
Part NumberT003S-FXUS
ModelTUBE-03

2. Fosi Audio

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Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 with Power Supply

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Fosi Audio #ad - 100w rms x 24 ohms, 320watts4 ohm speakers, can drive 280watts8 ohm, 20 Hz - 20 kHz, for passive speakers only, comes with 24v power supply, 0.04% thd, not the powered speakers.

No pop, no audible noise when Bluetooth connection is established;. Small simple compact design but practical and powerful, little Hi-Fi Bluetooth wireless amplifier exclusively designed for the customers who pursue HiFi sound;. Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home;. Bluetooth 5. 0 core, up to 50ft connection range guarantees low signal delay. Home integrated digital amplifier, 18-month warranty, you can return the item if you have any problems;.
BrandFosi Audio #ad
ManufacturerFosi Audio #ad
Part NumberBT20A
ModelBT20A

3. Fosi Audio

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Fosi Audio BT10A Bluetooth 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D Mini Hi-Fi Integrated Amp for Home Passive Speakers 50W x 2 TPA3116

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Fosi Audio #ad - Update 2021 new Model. Home hi-fi integrated amplifier, exclusively designed for the customers who pursue HiFi sound; Ship with power adapter and power cord, you can use directly.

Bluetooth 5. 0 wireless streaming range up to 50ft15m, no audible noise, with bass and treble control, adopt ti tpa3116D2 chip to get clear and clarity sound, Simple compact design but practical and powerful, dead silent when nothing is playing through it. Perfectly suited for your desktop or a smaller space in your home or office, Aluminum shell to sure high quality, 18-month warranty, you can return the item if you have any problems. Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home.
BrandFosi Audio #ad
ManufacturerFosi Audio #ad
Height1.18 Inches
Length4.21 Inches
Width3.43 Inches
Part NumberBT10A
ModelBT10A

4. FX-AUDIO-

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FX AUDIO Bluetooth Tube Preamp & Headphone Amp & Bluetooth Receiver+ESS9023 GE5654 HiFi Bluetooth 5.0 Vaccum Tube Preamp with RCA BT Input & RCA/3.5mm Headphone Output Bass Treble Control Black

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FX-AUDIO- #ad - Independent power supply design with shielded function effectively reduces interference. Long press select button to power on/off, treble and volume control knobs, and short press to switch signal input. Note: it is not a phono preamp or amplifier, not for phono, not for car audio.

Relay is used to switch signal, better than normal switches without huge pops when turn on or off the device. Ge5654 vacuum tube with tube buffer circuit has dynamic and sweet sound quality and can be replaced by 6J1, 6AK5, 6J4, 6K4 tubes for different listening feelings. Bluetooth receiving audio signal I2S output and ESS9023 dac chip can greatly improve the Bluetooth audio effect, low distortion. Rca output connect with active speakers or amplifiercan not connect with passive speakers directly. High quality components the headphone amp op chip is opa1656idr which can be replaced by muse02 or AD827.

Bass/treble/volume control it has independent bass, which helps you set sound effect easily according to your preference. Bluetooth 5. 0 receiver with dac it uses qcc3008 bluetooth 5. 0 chip, high signal-to-noise ratio, support APTX and has low latency. Ge5654 tube preamp with headphone amp the tube-03mkii tube preamp features preamp + bluetooth 5. 0 audio receiver + tube buffer headphone amp + with dac function.
BrandFX-AUDIO- #ad
ManufacturerFX-AUDIO- #ad
Part NumberTUBE-03MKII-B

5. Riverstone Audio

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Tested/Matched Pair 2 Tubes 7-Pin GE JAN 5654W Fully-Tested Vacuum Tubes, Riverstone Audio, JAN 5654W Platinum Grade Pair, Upgrade for 6AK5 / 6J1 / 6J1P / EF95

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Riverstone Audio #ad - 4 year warranty - buy with confidence - all vintage vacuum tubes sold by riverstone audio are backed by our no-nonsense 4-YEAR warranty. 5654w tubes should only be used to directly replace 7-pin 6j1, 6ak5, 6j1p / 6j1p-eb / 6zh1p-ev, 6ak5w and ef95 tubes.

The best warranty available in the audio tube business. The 5654w tubes are noS and were obtained from factory-sealed military surplus boxes. These vintage US manufactured GE tubes are Mil. We have been testing and using vacuum tubes for many years and know what it takes to select the best vacuum tubes for long life low-noise audio applications. Considered one of the best of the 5654 / 6ak5 / ef95 family of tubes for audio use. The vacuum tubes we sell are 100% tested with documented test results attached to each tube box.

Spec. Test results are provided with all tubes sold by riverstone audio. All vacuum tubes sold by riverstone Audio will have the "Riverstone Audio" name, logo and QC label on the boxes***. We guarantee that the ge 5654w tubes selected for these matched pairs test at NOS levels at or above 4400 micro-mho and a plate current of 6. 4 ma or higher. Important***** amplifier damage can occur if you substitute the wrong type of tube.
BrandRiverstone Audio #ad
ManufacturerGE #ad
Part NumberPair (2 pcs) Matched 5654W Vacuum Tubes
Model2PC-GE5654W

6. Douk Audio

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Nobsound 12AX7 ECC83 12AU7 ECC82 Vacuum Tube Preamp HiFi Preamplifier

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Douk Audio #ad - Excellent scaffolding design, symmetrical device layout, regular, reasonable, strictly respect the grounding line. Note: tube models may vary according to supply chain. Power transformers 76 * 40 h250 035 sheets; japan alPS 16 A-type audio potentiometer. Improved circuit; vacuum tube: shuguang 12ax7 ecc83 * 2 / 12au7 ecc82 * 2 / 6Z4 * 2. Their performance are the same. Full aluminum chassis with wood side panel; 4 Set of stereo L/R RCA auido input, 1 set of RCA output.
BrandDouk Audio #ad
ManufacturerNobsound #ad
Part NumberDJ417F
ModelDJ417F

7. AIMPIRE

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

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AIMPIRE #ad - Little dot mkii greatly increases sound quality, dynamic range, output impedance, and harmonic distortion. Little dot mkii also gains the driver tube-rolling options from the rest of the mk-series with the ability to roll 6JI, and with jumper pins shorted, EF92, CV131, etc at its factory jumper setting, M8100, GE5654, WE403A/B, CV4010, EF95, and all equivalents and drop-in replacements.
BrandAIMPIRE #ad
ManufacturerLittleDot #ad
Height4.21 Inches
Length8.66 Inches
Weight4.41 Pounds
Width4.33 Inches
Part NumberLittle Dot MKII
ModelLittle Dot MKII
Warranty1 year

8. Douk Audio

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

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Douk Audio #ad - Mini size and exquisite appearance; CNC aluminum shell and front panel; Blue tube light; Mellow and solid touch feeling. Notice: ① preamplifier needs to work with amplifiers or active devices; ② Not PHONO preamp and can't be used for record players. With independent treble, bass and volume control; Vacuum tubes can be replaced by various models. Excellent sound performance; no background noise; Warm and soft tube sound; Sound quality enhancement; Pure tube preamplifier; Suitable for all amplifiers and music types.
BrandDouk Audio #ad
ManufacturerNobsound #ad
Weight0.66 Pounds
Part NumberDZ030
ModelDZ030

9. FX AUDIO

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FX AUDIO GE5654 Tube Preamplifier for Home Audio HiFi Stereo Vacuum Buffer Tube Preamp with Bass and Treble Control with RCA Input/Output 12V/1A Power SupplyBlack

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FX AUDIO #ad - Exquisite appearance design—fx audio pre-amplifier has a mini exquisite appearance and light weight, easy to carry around, its brushed texture surface and high-quality tube combine to appear more fashionable, elegant and Classical. Rca input & output—from rca output, the preamp can also be directly connected to the audio source and active multimedia audio equipment or indirectly connected to passive audio through the power amplifierThe item includes RCA cable.

At the same time it can maximize the rendering of an atmosphere like being in a music performance to satisfy your experience of different sound styles in pursuit sound quality. Note—the item just is a tube preamp, speakers and can not be used as a phono amplifier. Only suitable with 12v power cord. Package include: 1 x tube preamp, turntables or passive speakers, 1 x rca cable, 1 x user manual, 2 x 5654 tubes, the home theater tube preamp can not be used in cars, 1 x power supply, nor can it directly work for headphones, not a power amplifier or phono amplifier. Separate control of bass&treble—the vacuum tube preamplifier can independently adjust the bass and the specific proportion components in high-frequency sound to perfectly achieve HiFi effects.

High quality materials—the chassis of the preamplifier is made of a solid aluminum alloy material, long service life, which has the characteristics of stable signal, and uses accurate and stable integrated circuits and high-quality components to eliminate low-frequency noise and ensure clear sound quality; The material of its PCB board is made of FR-4 insulation board and black immersion gold Craft, high temperature resistance, and not easy to be oxidized. Because it is a household circuit design, 1 x security card/1 year warranty.
BrandFX AUDIO #ad
ManufacturerFX AUDIO #ad
Height1.26 Inches
Length3.94 Inches
Width3.74 Inches
Part NumberTube-03
ModelTube-03

10. Fosi Audio

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Fosi Audio Box X1 Phono Preamp for MM Turntable Mini Stereo Audio Hi-Fi Phonograph/Record Player Preamplifier with 3.5MM Headphone and RCA Output with DC 12V Power Supply

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Fosi Audio #ad - What you get: box x1 phono preamp x1, 12v power adapter x1, user manual x1, 18-Month global warranty, and 24-Hour quick customer service. Note: you can connect a power amplifier through the 3. 5mm or rca output, then connect the passive speakers.

3. 5mm / rca output: box x1 supports mm turntable input, 3. 5mm headphone output and RCA line output for powered speakers. Equipped with DC12V high quality power supply. Note: rca line output and AUX headphone output can be output simultaneously. You can enjoy high-quality music with headphones through the 3. 5 mm headphone output. Features power switch & 3. 5mm headphone output: the unique power switch button design is very convenient to use.

Mm phono preamplifier & dc12v power adapter: output voltage level: 2v max p-p at 10k ohms, snr: 70db, tHD: ≤008% @ 1khz and 3mv, frequency Response: Standard RIAA. Converts phono signals: compact ultra-low noise phono turntable preamp that converts phono signals to line level signals. Designed with grounding post to protect your turntable.
BrandFosi Audio #ad
ManufacturerFosi Audio #ad
Part NumberBOX X