Type: HiFi Preamplifier. M8 fever HIFI tube Bluetooth digital power amplifier, the power amplifier uses TPA3116 as the core chip, it can reach a modulation frequency of up to 1.2MHZ. Audio input: RCA input, 3.5 stereo input, Bluetooth input.
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Douk Audio Ultra-compact Vacuum Valve Tube Headphone Amplifier Stereo Preamp for Home Desktop Audio System
Aliexpress UK
Multiple audio inputs for different requirements: support Bluetooth 5.0 / USB(U-disk) / Stereo RCA connections, perfectly match with phonoes, TV, tablet, projectors, computers etc., support U-disk to play APE/ FLAC /WAV/ WMA lossless formats besides MP3; greatly improve the sound quality for your amplifier or active speaker. HIFI warm sound and replaceable tube design: default 6A2 tube to filter out the digital feelings and soften the sound to be warmer and sweeter, full and mellow with large dynamic; pluggable tube design, can be upgraded to 6*1N / JAN5725W / 6AK5 / EF95 for tube shaping and rolling and enjoy different sound styles. Separate tone control and input switch: besides main volume control knob, also with independent treble and bass knob to present amazing music with rousing hi.
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Douk Audio U4 Mini Bluetooth 5.0 Tube Headphone Amplifier USB DAC Stereo Audio Preamp USB Sound Card APTX-LL
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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Douk Audio P5 Mini Tube Headphone Amplifier Desktop Stereo Audio Preamplfier with 4.4/6.35mm Jack
Aliexpress UK
Upgraded 7-band EQ preamp: separate and rich frequency band control (50Hz / 125Hz / 315Hz / 750Hz / 2KHz / 6KHz / 16KHz), T8 can compensate for the defects of speakers and sound field by adjusting 7-band high, middle and low frequencies, and modify various sound sources. The timbre and loudness also can be changed to achieve different sound effects. Real balanced XLR preamp: support XLR and RCA inputs and outputs, T8 can reproduce high-quality audio for amplifier or active speaker with excellent separation, resolution, sound field, clean background. Also with a balance control to compensate for the left and right channel of all outputs and prevent the sound field positioning from deviating from the center position.
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Douk Audio U4 Mini Bluetooth 5.0 Tube Headphone Amplifier USB DAC Stereo Audio Preamp USB Sound Card APTX-LL
Aliexpress UK
Features 1. The newest tube preamp of Nobsound with upgraded function and design. Hundreds of reviews and thousands of customers witness the excellent sound performance and quality of our Nobsound NS-08E. This new product will satisfy you again. 2. Excellent sound performance far more than what you paid for; No background noise; Adding tube sound and eliminating digital style for your sound system; Providing warm and soft sound output; Enhancing sound field and sound quality remarkably; Suitable for vocal / string music / soft music / classic music 3. Strong functionality and playability; With independent treble, bass and volume control; Vacuum tube can be replaced by 6ж1П / 6AK5 / 6BC5 / 403A/B / 5654 / EF40 / F95 / CV850.
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Douk Audio Ultra-compact Vacuum Valve Tube Headphone Amplifier Stereo Preamp for Home Desktop Audio System
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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Douk Audio P5 Mini Tube Headphone Amplifier Desktop Stereo Audio Preamplfier with 4.4/6.35mm Jack
Aliexpress UK
Hi-Fi Hybrid Tube Amplifier: Experience the warmth of vacuum tubes and the precision of transistors. A6 blends 6P15 and 6N1 tubes to deliver lush harmonics, wide soundstage, and lifelike dynamics for immersive sound enjoyment. Universal Inputs for All Sources: The A6 offers versatility with Bluetooth 5.3, Optical, Coaxial, dual RCA inputs, plus a built-in USB player supporting lossless formats like FLAC, APE, and WAV. Connect easily to CD players, PCs, TVs, tablets, and more. .
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Nobsound TUBE-T5C 4-Way Audio Selector Splitter Mini Stereo Tube Preamp Headphone Amplifier with VU Meter
Aliexpress UK
MM Phono/RCA Input Flexibility: Serves as both a phono preamp and tube preamp, P7 is perfect for connecting turntables, phones, TVs, CD players etc. The P7 enhances sound clarity while adding a warm tone, bringing out every detail in your favorite music. XLR Output for Pristine Audio: Besides standard RCA, the P7 features a true balanced XLR output, reducing noise and improving dynamic range. Perfect for amplifiers and active speakers, it delivers crystal-clear audio with a wider soundstage, ensuring distortion-free, immersive sound. .
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BREEZE 2025 Newly Upgraded A20B A20C Single End Class A Electronic Tube Pure Gallbladder Amplifier HiFi Bluetooth 6N3C/6L6/EL34
Aliexpress UK