Nobsound Little Bear T7 Vacumn Tube Mini Phono Stage RIAA MM Turntable Preamp & HiFi Tube Pre-Amplifier (Black)

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Feature

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 tube(6J1) can be directly replaced with tubes like 5654, 6AK5, EF95 .etc
Its mini size makes it more portable and be suited for a variety of scenarios and Its alluminum body makes it strong and elegant.
Upgrades of the new version: The gain switch is moved from inside to outside. Customers can adjust its gain more conveniently; The circuit is optimized and the noise is lower.

Description

Notice:

As a phono preamp, it is suited for MM turntables only. Do not support MC turntables.

As an AUX preamp, it is suited for devices like CD, DAC, PC, cellphone.

Parameters:

1. RIAA phono part:
   • RIAA freq response 20hz-20kHz +/- 0.5dB, S / N ratio> 85dB
   • THD <0.05%, input sensitivity 3.0mV, gain 40dB
   • Nominal / max output 300mV / 1.8V
   • Output impedance 200 ohms, input 47k ohm / 220 pF
2. AUX part:
   • Input voltage: AC12 ~ 18V
   • Frequency response: 20 HZ - 20 KHZ
   • Input sensitivity 300 mv
   • SNR: 96 db
   • Total harmonic distortion <3% (1 KHZ)
   • Power range output: 0.2 W
   • Output impedance: 100K
   • Input impedance: 50K

Chassis size:

8011628mm

Net weight:

0.24Kg (0.55Kg with package)

Package includes:

• 1 x preamplifier
• 1 x power supply
• 2 x 6J1 tubes

What's more:

• Please do not use the BACKUP tube(with a letter "B") when you start the device for the first time.
• It will be better if its GND jack can be really connected to the ground, which can decrease the background noise to a very low level.
• For MM turntables, please check whether your MM cartridge is the old version. If so. we suggest you to upgrade it as a new version one will bring much better sound.
• Please make sure that your turntable has a PHONO output. A LINE OUT turntable has a built-in preamp and it won't work well with T7.
• Please keep T7 away from devices that can transfer signal like cellphones and routers.
• 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.