As an Amazon Associate I earn from qualifying purchases.
Fosi Audio #ad - Tube preamplifier: it's also a tube preamp with 3. 5mm aux Input. Tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise and ensure clear sound quality.
Three switchable gain modes: 39, 42, and 45 db. Different tubes with different sounds. Adjustable gain levels to give you customizable control and outstanding compatibility.
Designed and assembled by Fosi Audio from high-quality components. You can replace the vacuum tubes to DIY your stereo system. What you get: box x2 phono preamp x1, user manual x1, RCA cable x1, Vacuum tubes x2, our worry-free 18-month warranty, power adaptor x1, and friendly customer service. Great warm, smooth-sounding. Designed with a grounding post to protect your turntable.
Fosi Audio #ad - Tube headphone amplifier & preamplifier: the bOX X4 is designed with a 3. 5mm aux headphone and RCA output, highly useful beyond imagination. Designed with a grounding post to protect your turntable.
Applicable vacuum tube model: 6k4/6j1/6j4/ge5654/6ak5/66*in vacuum tubes, etc. Jan 5654w tube mm phono preamplifier: the box x4 phono preamp supports 3. 5mm aux and mm turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
Fosi Audio #ad - Ultra-low noise performance. Convert phono signal to a more suitable and manageableline level for better sounding audio and volume between your MM turntable and home audio speakers system. The box x3 adopting jan 5654w vacuum tubes offers outstanding clean and warmer sound make your vinyl records deliver music exactly as it's read from your turntable's needle.
Tube phono preamp. New generation bluetooth 5. 0 jan 5654w tube phono preamp. The box x3 works with today's latest devices including smartphones/tablets/computers for hassle-free receiver pairing.
What you get: box x3 phono preamp x1, jan 5654w vacuum tubes x2, Bluetooth Antenna x1, power adaptor x1, user manual x1, our worry-free 18-month warranty, and friendly customer service. Note: the box x3 can only be connected to powered speakers, your will need an amplifier for passive speakers. Bluetooth 5. 0 tube preamplifier with 3. 5mm line input. Fosi audio box x3 is an 2-in-1 pre-amplifier: MM Turntable Preamplifier & Bluetooth 5.
Fosi Audio #ad - Converts phono signals: compact ultra-low noise phono turntable preamp that converts phono signals to line-level signals. Features power switch & 3. 5mm headphone output: the unique power switch button design is very convenient to use.
Note: rca line output and AUX headphone output can be output simultaneously. 3. 5mm / rca output: box x1 supports mm turntable input, 3. 5mm headphone output, and RCA line output for powered speakers.
5mm or rca output, then connect the passive speakers. What you get: box x1 phono preamp x1, 12v power adapter x1, User manual x1, our worry-free 18-month warranty, and friendly customer service. Mm phono preamplifier & dc12v power adapter: output voltage level: 2v max p-p at 10k ohms, thd: ≤008% @ 1khz and 3mv, snr: 70db, frequency Response: Standard RIAA. Equipped with DC12V high-quality power supply.
Fosi Audio #ad - Tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
Adjustable gain levels to give you customizable control and outstanding compatibility. No pop, no audible noise when Bluetooth connection is established;. Bluetooth 5.
Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. Three switchable gain modes: 39, 42, 45 db. What you get：bt20a amp, 18-month worry-free warranty, Box X2 Phono Preamp, other accessories, and friendly customer service. Designed with grounding post to protect your turntable.
Fosi Audio #ad - Designed with grounding post to protect your turntable. Tube preamplifier: it's also a tube preamp with 3. 5mm aux Input. Three switchable gain modes: 39, 42, 45 db. Tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost.
Great warm, smooth-sounding. Designed and assembled by Fosi Audio from high-quality components. What you get：box x2 phono preamp, other accessories, 18-month worry-free warranty, GE 5654W Vacuum Tubes 2PCS, and friendly customer service. Adjustable gain levels to give you customizable control and outstanding compatibility. Hear the difference, enjoy your music! .
Fosi Audio #ad - Adjustable gain levels to give you customizable control and outstanding compatibility. What you get: tb10a power amplifier, Box X2 Preamplifier, other Accessories, 18-month worry-free warranty and friendly customer service.
Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. Box x2 tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
Fosi Audio #ad - Jan 5654w tube mm phono preamplifier: the box x4 phono preamp supports 3. 5mm aux and mm turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
Each package contains a pair of matched military-grade vintage US-manufactured 5654W vacuum tubes2 PCES.
It can also directly replace we-403a/403B/EF95 and ordinary 5654. Tube headphone amplifier & preamplifier: the bOX X4 is designed with a 3. 5mm aux headphone and RCA output, highly useful beyond imagination. What you get：box x4 phono preamp, 18-month worry-free warranty, other accessories, 5654W Vacuum Tubes, and friendly customer service.
Fosi Audio #ad - Designed with grounding post to protect your turntable. Different tube with different sound. Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. You can replace the vacuum tubes to DIY your stereo system.
Great warm, smooth-sounding. Adjustable gain levels to give you customizable control and outstanding compatibility. What you get: box x2 phono preamp x1, rca cable x1, power adaptor x1, 18-month global warranty, Vacuum tubes x2, user manual x1, and 24-Hour quick customer service.
Tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed and assembled by Fosi Audio from high-quality components. Applicable vacuum tube model: 6k4/6j1/6j4/ge5654/6ak5/66*in vacuum tubes, etc. Three switchable gain modes: 39, 42, 45 db.
Fosi Audio #ad - Adjustable gain levels to give you customizable control and outstanding compatibility. What you get: t20 headphone amplifier, Other Accessories, Box X2 Preamplifier, 18-month worry-free warranty and friendly customer service.
Box x2 tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
04% thd, cd players, can use ipod, 20 hz - 20 khz, Phone, Echo Dot, or Streaming Media players as input. Adopt 2 x 6j4 tubes to get clear audio sound, 6ж1П, 6j1, ef95 and so on, 403a/b, 6ak5, ge5654, ef40, tubes can be replaced by 6K4, 6BC5, with headphone output for 16-64ohm headphones.
1. Fosi Audio
#adFosi Audio Box X2 Phono Preamp for MM Turntable Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply
#adThree switchable gain modes: 39, 42, and 45 db. Different tubes with different sounds. Adjustable gain levels to give you customizable control and outstanding compatibility.
More information #ad
Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. Applicable vacuum tube model: 6k4/6j1/6j4/ge5654/6ak5/66*in vacuum tubes, etc. Designed and assembled by Fosi Audio from high-quality components. You can replace the vacuum tubes to DIY your stereo system. What you get: box x2 phono preamp x1, user manual x1, RCA cable x1, Vacuum tubes x2, our worry-free 18-month warranty, power adaptor x1, and friendly customer service. Great warm, smooth-sounding. Designed with a grounding post to protect your turntable.
| Brand | Fosi Audio #ad |
| Manufacturer | Fosi Audio #ad |
| Height | 1 Inches |
| Length | 4 Inches |
| Weight | 1 Pounds |
| Width | 3 Inches |
| Part Number | Box X2 |
| Model | BOX X2 |
| Warranty | 18-month manufacturer |
More information #ad
2. Fosi Audio
#adFosi Audio Box X4 Phono Preamp Headphone Amplifier/Preamplifier Hi-Fi Pre Amp with JAN 5654W Vacuum Tubes for MM Turntable Phonograph Record Player with Volume Bass Treble Control
#adApplicable vacuum tube model: 6k4/6j1/6j4/ge5654/6ak5/66*in vacuum tubes, etc. Jan 5654w tube mm phono preamplifier: the box x4 phono preamp supports 3. 5mm aux and mm turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
More information #ad
Different tubes with different sounds. What you get: box x4 phono preamp, dc 12v power supply, our worry-free 18-month warranty, user manual, and friendly customer service. You can replace the vacuum tubes to DIY your stereo system. Next-generation phono preamp for unrivaled sound quality. 2022 new model: the updated version for BOX X2.| Brand | Fosi Audio #ad |
| Manufacturer | Fosi Audio #ad |
| Height | 1 Inches |
| Length | 4 Inches |
| Weight | 0.8 Pounds |
| Width | 2 Inches |
| Part Number | BOX-X4 |
| Model | BOX X4 |
| Warranty | 18-month manufacturer |
More information #ad
3. Fosi Audio
#adFosi Audio Box X3 5654W Tube Phono Preamp Turntable Preamplifier for MM Phonograph Bluetooth 5.0 Mini Stereo Hi-Fi Pre-Amplifier for Home Audio Record Player Sound System
#adTube phono preamp. New generation bluetooth 5. 0 jan 5654w tube phono preamp. The box x3 works with today's latest devices including smartphones/tablets/computers for hassle-free receiver pairing.
More information #ad
The built-in low noise phono preamp circuitry is highly accurate and precisely conforms to the RIAA standard. Wireless streaming Hi-Fi music to your home stereo speakers system. What you get: box x3 phono preamp x1, jan 5654w vacuum tubes x2, Bluetooth Antenna x1, power adaptor x1, user manual x1, our worry-free 18-month warranty, and friendly customer service. Note: the box x3 can only be connected to powered speakers, your will need an amplifier for passive speakers. Bluetooth 5. 0 tube preamplifier with 3. 5mm line input. Fosi audio box x3 is an 2-in-1 pre-amplifier: MM Turntable Preamplifier & Bluetooth 5.
| Brand | Fosi Audio #ad |
| Manufacturer | Fosi Audio #ad |
| Height | 1 Inches |
| Length | 4 Inches |
| Weight | 0.5 Pounds |
| Width | 3 Inches |
| Part Number | BOX X3 |
| Model | BOX X3 |
| Warranty | 18-month manufacturer |
More information #ad
4. Fosi Audio
#adFosi 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
#adNote: rca line output and AUX headphone output can be output simultaneously. 3. 5mm / rca output: box x1 supports mm turntable input, 3. 5mm headphone output, and RCA line output for powered speakers.
More information #ad
You can enjoy high-quality music with headphones through the 3. 5 mm headphone output. Designed with a grounding post to protect your turntable. Note: you can connect a power amplifier through the 3. 5mm or rca output, then connect the passive speakers. What you get: box x1 phono preamp x1, 12v power adapter x1, User manual x1, our worry-free 18-month warranty, and friendly customer service. Mm phono preamplifier & dc12v power adapter: output voltage level: 2v max p-p at 10k ohms, thd: ≤008% @ 1khz and 3mv, snr: 70db, frequency Response: Standard RIAA. Equipped with DC12V high-quality power supply.
| Brand | Fosi Audio #ad |
| Manufacturer | Fosi Audio #ad |
| Height | 1 Inches |
| Length | 4 Inches |
| Width | 2 Inches |
| Part Number | BOX X1 |
| Warranty | 18-month manufacturer |
More information #ad
5. Fosi Audio
#adFosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifie and Fosi Audio Box X2 Phono Preamp for Turntable Preamplifier
#adAdjustable gain levels to give you customizable control and outstanding compatibility. No pop, no audible noise when Bluetooth connection is established;. Bluetooth 5.
More information #ad
0 core, up to 50ft connection range guarantees low signal delay. Small simple compact design but practical and powerful, little Hi-Fi Bluetooth wireless amplifier exclusively designed for the customers who pursue HiFi sound;. Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. Three switchable gain modes: 39, 42, 45 db. What you get：bt20a amp, 18-month worry-free warranty, Box X2 Phono Preamp, other accessories, and friendly customer service. Designed with grounding post to protect your turntable.
| Brand | Fosi Audio #ad |
More information #ad
6. Fosi Audio
#adFosi Audio Box X2 Phono Preamplifier for MM Turntable and GE 5654W Vacuum Tubes 2PCS
#adEntry-level high-end analog sound and top-notch circuitry for an unbeatable low cost.
More information #ad
These ge 5654w tubes show you the difference in natural voice reproduction and simple musical. They sound more clear with an emphasis on clarity, larger soundstage, and bass response is more noticeable. Great warm, smooth-sounding. Designed and assembled by Fosi Audio from high-quality components. What you get：box x2 phono preamp, other accessories, 18-month worry-free warranty, GE 5654W Vacuum Tubes 2PCS, and friendly customer service. Adjustable gain levels to give you customizable control and outstanding compatibility. Hear the difference, enjoy your music! .
| Brand | Fosi Audio #ad |
More information #ad
7. Fosi Audio
#adFosi Audio TB10A 2 Channel Stereo Audio Class D Amplifier Receiver and Box X2 Phono Preamp
#adEntry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. Box x2 tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
More information #ad
Tb10a: 100w max power output x 24 ohms, comes with 24v power supply, 004% thd, 20 hz - 20 khz, can drive 200watts8 ohm, 300watts4 ohm speakers. Perfectly suited for your desktop or a smaller space in your home or office, digital amplifier is easy to connect to your audio system with no software to install or settings to change. Three switchable gain modes: 39, 42, 45 db.| Brand | Fosi Audio #ad |
More information #ad
8. Fosi Audio
#adFosi Audio Box X4 Phono Preamp Headphone Amplifier/Preamplifier and Fosi Audio 7-Pin 5654W Vacuum Tubes
#adEach package contains a pair of matched military-grade vintage US-manufactured 5654W vacuum tubes2 PCES.
More information #ad
Designed with a grounding post to protect your turntable. Substitute for 7-pin 6ak5/6ak5w/6zh1p/6j1/6j1p tubes. It can used for the device that comes with 6J2/6J3/6J4/6J5 as replacement. It can also directly replace we-403a/403B/EF95 and ordinary 5654. Tube headphone amplifier & preamplifier: the bOX X4 is designed with a 3. 5mm aux headphone and RCA output, highly useful beyond imagination. What you get：box x4 phono preamp, 18-month worry-free warranty, other accessories, 5654W Vacuum Tubes, and friendly customer service.
| Brand | Fosi Audio #ad |
More information #ad
9. Fosi Audio
#adFosi Audio Phono Preamp for Turntable Preamplifier MM Phonograph Preamplifier with Gain Gear Mini Stereo Audio Hi-Fi Pre-Amplifier for Record Player with DC 12V Power Supply Box X2 Renewed
#adGreat warm, smooth-sounding. Adjustable gain levels to give you customizable control and outstanding compatibility. What you get: box x2 phono preamp x1, rca cable x1, power adaptor x1, 18-month global warranty, Vacuum tubes x2, user manual x1, and 24-Hour quick customer service.
More information #ad
Tube preamplifier: it's also a tube preamp with 3. 5mm aux Input. Tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed and assembled by Fosi Audio from high-quality components. Applicable vacuum tube model: 6k4/6j1/6j4/ge5654/6ak5/66*in vacuum tubes, etc. Three switchable gain modes: 39, 42, 45 db.
| Brand | Fosi Audio #ad |
| Manufacturer | Fosi Audio #ad |
| Part Number | Box X2-cr |
| Warranty | 90 days limited warranty |
More information #ad
10. Fosi Audio
#adFosi Audio T20 Bluetooth Tube Amplifier Stereo Receiver 2 Channel Class D Headphone Amp and Box X2 Phono Preamp
#adBox x2 tube mm phono preamplifier: converts phono signals to Line Level Signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality.
More information #ad
Three switchable gain modes: 39, 42, 45 db. Entry-level high-end analog sound and top-notch circuitry for an unbeatable low cost. T20: 50w rms x 2 power output4 ohms, best for outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers, tv, mp3 players, built-in speakers protection circuit, 0.004% thd, cd players, can use ipod, 20 hz - 20 khz, Phone, Echo Dot, or Streaming Media players as input. Adopt 2 x 6j4 tubes to get clear audio sound, 6ж1П, 6j1, ef95 and so on, 403a/b, 6ak5, ge5654, ef40, tubes can be replaced by 6K4, 6BC5, with headphone output for 16-64ohm headphones.
| Brand | Fosi Audio #ad |
More information #ad
