
Nobsound Little Bear T11 6N2/12AX7 Vacuum&Valve Tube Phono Turntable Preamplifier; MM RIAA LP Vinyl Record Player Preamp; Stereo HiFi Audio Pre-Amplifier
On the bottom of the description, there is a few Q&A for buyers who might meet the humming problem. If you encounter a similar issue, please check those tips, which have covered most of conditions.

Bellari VP130 MK2 Tube Phono Preamp/Headphone Amplifier
Equalization: RIAA +/- .9 dB, 20Hz to 20kHz THD .05% @ 1KHz S/N Ratio: 103 dB, unweighted Crosstalk: -75 dB Size: 6w x 2.5h x 5.4d

Fosi Audio Box X2 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
Applicable vacuum tube model: 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tube with different sound.

Douk Audio Nobsound 12AX7 (ECC83) 12AU7 (ECC82) Vacuum Tube Preamp HiFi Preamplifier
Full aluminum chassis with wood side panel; 4 Set of stereo L/R RCA auido input, 1 set of RCA output

DYNASTY PROAUDIO UA2D USB Phono Preamp for Turntable
Preamp with RIAA Equalized Low Noise Moving Magnet A/D Converter (Power Adaptor & USB Cable Included)
Can be used as a Phono preamp for any vinyl playback system, amplifies the signal from your turntable to levels that allow you to connect it to your sound system.

Fosi 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
MM Phono Preamplifier & DC12V Power Adapter: Output Voltage Level: 2V max (P-P) at 10K Ohms, SNR: 70dB, THD: 0.08% @ 1kHz and 3mV, Frequency Response: Standard RIAA. Equipped with DC12V high quality power supply.

ART DJPREII Phono Preamplifier
Dimensions: 1.75 H x 4.2 W x 3.5 inches D (44.5 x 107 x 89mm)

GOgroove Mini Phono Turntable Preamp Preamplifier with 12 Volt DC Adapter , RCA Input for Vinyl Record Player
Compatible With Audio Technica , Crosley , Jensen , Pioneer , 1byone and More Turntables
EASY TO SET UP OUT OF THE BOX for a simple hook up the preamp to both turntable and audio device so you can enjoy vinyl in no time | ULTRA-LOW NOISE OPERATION for better sound and less distortion

Cambridge Audio Alva Solo
Phono Preamp for Moving Magnet Turntable
TECH SPECS - MAX POWER CONSUMPTION 10W, GAIN @ 1KHZ 39dB, NOMINAL OUTPUT 300mV, SENSITIVITY FOR NOMINAL OUTPUT 3.35mV, EQUIVALENT INPUT NOISE ~0.09uV, RIAA CURVE ACCURACY +/- 0.65dB 30Hz-20kHz, DIMENSIONS (H X W X D) 1.9x6.9x5.2, WEIGHT 1.5lbs

Pro-Ject Audio
Phono Box DC, MM/MC Phono preamp with line Output, Blk
Ultra-low impedance output stage