Fosi Audio P2 Headphone Amplifier Vacuum Tube Headphone Amp Mini Hi-Fi Stereo Audio with Low Ground Noise Output Protection. There's a selector for you to switch the mode you want. THD: ≤0.1%; SNR: ≥ 95db.
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XDUOO MT-604 Headphone Amplifier Hi-fi valve Balanced Tube Headphone Amplifier 6J1 Pre amp XLR/4.4MM Balanced Input/Output Tube+
Aliexpress UK
With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience. Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc. .
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Fosi Audio GR70 Tube Headphone Amplifier Preamp Class A Vacuum tube Amp with 5654W*2 & 6Ж4*2 3.5mm & 6.35mm Jack
Aliexpress UK
Portable HiFi Sound: Driven by batteries, P10-PRO features Raytheon JAN6418 direct-heating tubes to deliver rich, warm tube sound. Whether you’re traveling, commuting, or relaxing at home, it pairs effortlessly with your phone, laptop, computers etc. and provides exceptional headphone performance anytime, anywhere. Worry-Free Battery Life: Enjoy up to 8-10 hours of uninterrupted music with two 600mAh lithium batteries. The P10-PRO supports USB-C charging, allowing you to recharge while listening. When powered off, it fully recharges in just 2.5-3 hours. With the replaceable battery design, you have the option to swap batteries for extended use.
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TZT Little Dot MK 2 MK II Vacuum Tube Headphone Amplifier 6J1+6N6 Assembled Pre-amplifier HiFi Audio Amp
Aliexpress UK
P2 can be used as a tube preamp, connected between audio source and amplifier or active speaker to greatly improve the sound quality. Default 6K4 tubes, and can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles. P2 can be used as a headphone amplifier, convenient to listen to lossless music alone or at night. The RCA and 3.5mm headphone jack can output at the same time to meet more needs. P2 can be used as a digital player with U-disk and TF card inputs, supporting MP3 and other lossless format such as APE, FLAC, WAV, WMA. No need for any driver, plug and play, convenient to enjoy fun even on the road or outdoors.
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Little Dot Mk 2 Vacuum Tube Headphone Amplifier HiFi Gall Headphone Amplifier Tone Sweet Rich Details
Aliexpress UK
Multiple audio inputs for different purposes: with 3.5mm AUX and phono inputs, supports both MM and MC cartridges and with MC input impedance settings, compatible well with different MM/MC record players and other audio devices to satisfy different demands. With headphone output and perfect design:can be used as a headphone amplifier to drive 32-300 ohm headphones. Reasonable and advanced circuit and high-quality components, such as power 3PCS JRC2608 op amps, high-end power management part etc.
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Nobsound P10 PRO HiFi Direct Heated Tube Headphone Amplifier with Long-life Battery Pluaggbel Op-amps Powered by USB-C
Aliexpress UK
With built-in battery protection circuit: battery lets your listening feast without time limitation. It can't be turned on during charging and will power off automatically after fully charged, and charger LED will turn to green.
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AIYIMA T5 V2.0 HiFi Bluetooth 5.1 Vacuum Tube Headphone Amplifier 2RCA VU Meter Class D 2.0 Channel Power Amplifier 160W*2
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The Douk Audio ST-01 PRO is a high-fidelity Bluetooth 5.0 valve tube amplifier that delivers powerful sound quality. This amplifier supports various audio inputs including digital coaxial RCA, USB, stereo L/R RCA, and digital optical TOSLINK. With a digital amplifier class and a power output of 320W, the Douk Audio ST-01 PRO ensures a dynamic listening experience. The sleek black design, along with features like a DVD player and Blu-ray player compatibility, make it a versatile and top-of-the-line audio system for any home or studio setup.
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Nobsound Super Mini Vacuum Tube Headphone Amplifier Home Stereo Desktop Audio Preamp
Aliexpress UK
Vintage vacuum tubes to provide double enjoyments: add magic eye 6E2 tubes to show the signal level dynamically, the color is pure with high brightness, also with switchable cold green and warm orange backlights, wonderful visual feast can be attained; default 6A2 tubes to improves everything associated with music, sounds warm and natural, full and mellow, amazing auditory carnival for your ears. T9 tube preamp with Phono and RCA inputs: Phono input, support both MM /MC cartridges with one button to switch, convert phono signal to line level signal, low-noise integrated circuits and high-quality components to ensure clear sound. Stereo L/R RCA input, amplify the low level audio signal from your phone, tablet, PC, MP3 etc., easier to drive amplifiers or active speakers and greatly improve t.
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MOFI-Earmax Pro -EMP-Tube-Headphone Amplifier-DIY KIT & Finished Board
Aliexpress UK