Top 8 6688 Vacuum Tubes

Feature

• Notice: ① Preamplifier needs to work with amplifiers or active devices
• ② Not PHONO preamp and can’t be used for record players
• Excellent sound performance
• No background noise
• Warm and soft tube sound
• Sound quality enhancement
• Pure tube preamplifier
• Suitable for all amplifiers and music types
• With independent treble, bass and volume control
• Vacuum tubes can be replaced by various models
• Mini size and exquisite appearance
• CNC aluminum shell and front panel
• Blue tube light
• Mellow and solid touch feeling

Feature

• Performance which surpasses NOS original in all areas. Big, warm and very musical. Superb linearity with a dynamic 3-D sound.
• Preferred by guitar technicians for re-tubing and upgrading. Equally well suited for HiFi applications
• Single tube
• 7025/ECC83 equivalent

Feature

• The Nobsound NS-02E can provide soft and warm sound while maintaining its exceptional clarity.
• The default tube is 6N3, which can be easily replaced with 6A8Q, 2C51, 5670, 5185, 6385, 6185, WE396, ECC 42, 6H3N, 6H3II, ECF82, 6CC42.
• The Nobsound NS-02E can be paired with your preamp, smart phone, computer, iPod, stereo system, and other audio device as well as your favorite headphones.
• The Nobsound NS-02E can also be used as a tube pre-amplifier.
• The affordable price makes both Hi-Fi freshmen and Hi-Fi veterans can enjoy it.

Feature

Feature

• Using military grade tube 2*6J9-J for pre amplifier
• replaceable design,can be change the tube for E180F, 6ж9П, EF861, and 6688 for different sound style.
• Large current headphone driver parallel NJM4556*2,it gets much bigger driving current.
• Low Ground Noise: There’s no buzzing or ringing when you use our amp! We feature a high-grade microprocessor that controls the relay while its being switched on and off, achieving a low-ground noise power circuit.
• Aluminum CNC housing with stylish design,high quality components and using relay to mute audio.
• Semi-Set Tube Design: As a safety measure, the high temperature portion of the tube is strategically placed inside of the amp and out of reach.(Please plug the power supply after all the connection been done for safety)

Feature

• NS-08E is a Hi-Fi tube headphone amp. It can offer &gt
• =1100mW at 32Ω and can drive 18~600 ohm headphones & headsets.
• New version adopts 6J3 vacuum & valve tube, which has warmer tube sound and more replaceable tubes.
• Upgrade circuit can ensure lower background noise, more powerful bass and more brilliant treble.
• It can also be used as a stereo preamplifier for other amplifiers and active speakers. For better preamp function, we recommend NS-10P (ASIN: B07719G56B).
• CNC Aluminum shell with super mini size. Very solid workmanship. Prompt and courteous customer service.18-month warranty and life technical support. For any questions, please contact us on Amazon.

Feature

• Low Ground Noise
• There’s no buzzing or ringing when you use our amp! We feature a high-grade microprocessor that controls the relay while its being switched on and off, achieving a low-ground noise power circuit.
• Sophisticated Design
• Our amp is constructed from top of the line, scratch resistant CNC aluminum.(Warm tip:When you use this product for a long time,please do not touch it by your bare hand,it may very hot,but please don’t worry this is a normal phenomenon.)
• High Drive Current
• Our specially designed power output boasts a larger than average drive current.(Note:please know that this headphone amplifier not for intense music)
• Semi-Set Tube Design
• As a safety measure, the high temperature portion of the tube is strategically placed inside of the amp and out of reach.(Please plug the power supply after all the connection been done for safety)
• Small Compact Size & 2 X 6J9 J-Grade Tubes
• The dimensions of our amp are 2.9inX3.5inX1.02in, and you can replace the stock tubes with E180F, 6ж9П, EF861, and 6688 tubes if you wish to be able to cue music.

Feature

• ????❤Excellent sound performance: Low ground noise, built-in output protect circuit, no buzzing or ringing noise, Audiophile-level sound quality, exclusively designed for the customers who pursue HiFi sound
• and safe for your expensive headphones
• ????❤Stereo and Preamplify: Headphones amp also can be used as stereo preamp, Parallel 3.5mm and RCA stereo inputs, 6.35mm headphone output, include a 6.35mm to 3.5mm adapter
• ????❤High-performance: P2 is a Hi-Fi tube headphone amp, 2 X 6K4 J-Grade tubes can easily power high-performance headphones including the HD580, HD600, HD650, K701, K702, Q701, and many more, recommend 32-600ohm headphones
• ????❤Easy replace tube: Tubes can be replaced by 6j1/6J4/GE5654/6AK5/6*1n/ E180F/6ж9П/EF861/6688 tubes etc
• ????❤Exquisite appearance: Small Compact Size, All aluminum alloy shell and come with a 18-month manufacturer’s warranty.