1. Douk Audio#ad
Nobsound 12AX7 12AU7 Vacuum Tube Preamp HiFi Preamplifier#adDouk Audio #ad - Improved circuit; vacuum tube: shuguang 12aX7 * 2 / 12AU7 * 2 / 6Z4 * 2. Full aluminum chassis with wood side panel; 4 Set of stereo L/R RCA auido input, 1 set of RCA output.
|Brand||Douk Audio #ad|
SUCA-AUDIO Tube-T1 Preamplifier, Vacuum Tube Amplifier Buffer Mini Hi-Fi Stereo Preamp with Treble & Bass Tone Control for Home Audio Player 6K4 Tubes#adSUCA-AUDIO #ad - Tubes replaceable - the 3d sound quality of a good tube implementation is simply divine! Tubes detachable design, 6J4, 6j2, GE5654, 6j1, you can swaps the tube to tweaking the sound, 6AK5 and 6*1n tubes are fit for this preamp.
Sweet tube sound - vacuum tube preamp will give you a different acoustic enjoyment with dynamic, sweet tube sound enjoyment. You can feel improve of sound quality in your home theater, HIFI system and any streaming media.
Notice - this is a preamplifier but not a power amplifier or a phono preamp, can't be used for turntables or passive speakers. The main purpose of this machine is to act as a "buffer" to sweet the sound. Rca input & output - connect your computer, ipod and other player with RCA cables input and output to the digital amplifiers, phone, CD, active multimedia audio devices for lossless audioThe RCA cables not included.
|Part Number||6K4 Tube-BK|
AIYIMA Audio 6J1 Tube Preamplifier Bluetooth 5.0 with Treble & Bass Adjustment DC12V HiFi Audio Preamp NE5532P Chips for Amplifier Home Audio SystemSilver+BT 5.0#adAOSHIKE #ad - Using the classical tube 6j1 design for easy replacement, Bluetooth 5. 0 tube preampnote:Cannot be used on a record player and phonographs. Use it after you've started the car.
It needs to be connected to an active speaker and a rear amplifier. Because when the car starts to fire, DC12V/1A power supplyMax voltage is 12V, the power will reach 13. 5v. Aux / bluetooth audio input, when you use it in the car, otherwise it will burn out the diode, Pls pay attention to having it connected.
|Part Number||TUBE-A3 Pro|
4. Douk Audio#ad
P1 Bluetooth 5.0 Vacuum Tube Preamplifier Hi-Fi Valve Headphone Amplifier Wireless Receiver Audio Decoder Preamp USB DAC APTX#adDouk Audio #ad - P1 is a bluetooth vacuum & valve tube preamplifier and headphone amplifier. Headphone output is 160mw @32Ω and is suitable for 32~300Ω headphones and headsets.
Pc-usb supports 24bit 192khz and is compatible with Windows/Mac/Linux system. It can be replaced by 6j1, 6j4, 6ak5, GE5654, 6Ж1n-EB. Bypass function can suspend the tone control circuit to achieve purer music experience.
|Brand||Douk Audio #ad|
ART Tube MP/C Tube Pre-Amplifier/Opto-Compressor-Limiter Project Series#adART #ad - Optical vca-less compressor circuitry = transparent dynamics control. Xlr balanced inputs and outputs. Tube-based mic/line preamplifier with up to 80 dB of gain. A quarter inch unbalanced inputs and outputs. Hand-selected 12AX7a tube.
|Part Number||Tube MP/C|
6. Douk Audio#ad
Nobsound NS-10P Mini Vacuum Tube Preamp Audio Hi-Fi Stereo Pre-Amplifier Treble & Bass Control#adDouk Audio #ad - Excellent sound performance; no background noise; Warm and soft tube sound; Sound quality enhancement; Pure tube preamplifier; Suitable for all amplifiers and music types. Mini size and exquisite appearance; CNC aluminum shell and front panel; Blue tube light; Mellow and solid touch feeling.
|Brand||Douk Audio #ad|
7. Fosi Audio#ad
Fosi Audio P1 Tube Pre-Amplifier Mini Hi-Fi Stereo Buffer Preamp 6K4 Valve & Vacuum Pre-amp with Treble & Bass Tone Control for Home Theater System#adFosi Audio #ad - Rca input to the computer, cd, phone, ipod and other player and RCA output to the digital amplifiers, active multimedia audio devices for lossless audioThe RCA cables not included.
All aluminum alloy shell and come with a 18-month manufacturer's warranty. This pre-amp improves everything detail, immediacy, transparency, richness, tone associated with your music. Small compact design, ef95, with optimal integrated circuit to get powerful, 5654, 6AK5, dynamic and sweet sound.
|Brand||Fosi Audio #ad|
|Manufacturer||Fosi Audio #ad|
ART TubeMP Tube Microphone Preamp#adART #ad - Variable input and output controls. Smooth warm and fat sound quality. Over 70dB of gain. Superior preamplification. Phase reversal switch.
|Part Number||Tube MP|
9. Little Bear#ad
Little Bear T7 Vacumn Tube Mini Phono Stage RIAA MM Turntable Preamp & HiFi Tube Pre-Amplifier Black#adLittle Bear #ad - This product can be used as a mm turntable Preamp or a HiFi Tube Pre-Amplifier and can provide high fidelity and warm sound beyond your expectation.
Please do not connect t7 to any inferior Bluetooth digital amplifiers except Class T digital amplifiers, since all Class D amplifiers have very loud background noise. Its tube6j1 can be directly replaced with tubes like 5654, 6AK5, EF95.
|Brand||Little Bear #ad|
|Manufacturer||Douk Audio #ad|
Rockville BluTube 70W Tube Amplifier/Home Theater Stereo Receiver with Bluetooth#adRockville #ad - Total harmonic distortion: =002%. Rockville blutube audiophile grade tube amplifier with bluetooth. 110v/220v switchable. 25 watts x 2 rmS @ 8 ohm. Usb can charge your phone or other USB device.
Input impedance: 47ko. Due to this the amp sounds more like double the rated power! Built in bluetooth with 33 foot range. Signal-to-noise ratios/n: =86dB. Headphone output. Rockville blutube Bluetooth tube 70 watt amplifier/home theater stereo receiver.