For Little Bear T11 Vacuum Tube Phono Stage Preamplifier MM RIAA Turntable Preamp
Introduction
Little Bear T11 is a pure tube phono preamplifier working with MM cartridge turntables only. Please make sure your turntable is equipped with a PHONO signal output instead of a LINE output
Little Bear T11 is based on T10 with improvement. Compared to T10, T11 has lower background noise at normal volume. Its sound performance is better with increased liveness. What's more, T11 is applied with an enhanced manufacturing process and equipped with a metal chassis, which managed to give it a more elegant and exquisite appearance.
Features:
Adopting a conventional active RIAA equalization phono stage circuit.
There is 3 metal covers and 4 acrylic covers for those tubes. And you will be able to choose which type as you like. (We suggest using metal covers if there exists effect sources in the surroundings. Otherwise acrylic covers will have a better appearance.)
The GND switch on its back panel is setting to connect with the ground in default. However, there may get some loud background noise with a few digital amplifiers. Please try setting it to disconnect with the ground then.
There is a 3-meter black cable in the package, which can be wired between T11 with huge metal items such as doors or windows if your wall outlet has no ground connection.
Supporting 6N2/12AX7 tubes, which offers many replaceable tubes for you like 6H2,6H2n (For 6N2 type) and 12AX7B,6N4(9PIN),ECC83,5751 (For 12AX7 type).
Technical Specifications:
Output Voltage :2.0V
Gain=48dB
Input RIAA ≤ 5mV
THD ≤ 0.5%
Frequency Response: standard characters
Signal to Noise Ratio ≥ 65dB(A)1KHz (input: 10mV; output: 0.7V)
Dimension: 220*180*64 mm
Weight: 2.5kg
Packing list:
1× Phono Preamp
1× 6Z4 Tube
3× 6N2 Tubes
3× Metal Tube Covers
4× Acrylic Tube Covers
1× Power Cable
1× GND wire