SS-11A (Classic)

The AMT Electronics SS-11A (Classic) is a 3-channel tube guitar preamp designed to cover classic jazzy, overdrive, and rock sounds of vintage tube amplifiers. Here are the technical specifications and features:

Features:
- Fully tube-based 4-stage overdrive channel with DUAL TUBE design (2x12AX7) with high-voltage anode voltage (+300 V).
- Three separate channels: CLEAN, OVERDRIVE, and LEAD.
- Individual gain sensitivity and output level controls for clean and crunch/lead channels.
- TREBLE SHIFT toggle switch to enter bright mode for added punch of high end.
- FX LOOP for external effects.
- OUTPUT jack for connecting to both specialized guitar amplifiers with a standard level of 0 dB (GUITAR AMP mode) and a CAB SIM MIXER out with a standard level of -10dB and a guitar cabinet simulation.
- Incorporates new field-effect transistor-based guitar cabinet impulse response emulator processing for improved naturalness of sound when connected to a line input.
- Special attention paid to transistor anode power quality: preamp uses a specially designed high-voltage transformer minimizing the penetration of impulse noises into amplified signal.

Description of SS-11 Channels:
- LEAD channel provides thick viscous sound for playing both chunky rhythm parts and singing solos with excellent presence. TREBLE SHIFT toggle to take your lead sound into bright mode.
- OVERDRIVE channel features a more open structure of the sound, with a wide range of sensitivity adjustment resulting in a natural tube tone.
- CLEAN channel focuses on crystal clarity clean sound, with Low, Mid, and High controls for tweaking your sound.

Specifications:
- Tubes: 12AX7 x 2 (6Н2П-ЕВ x 2)
- Input Impedance Rear Panel: 1MOhm
- Input Sensitivity Rear Panel: -10dB
- Output Impedance: 10kOhm
- Power Voltage: 12vDC (-)center
- Power Consumption: 600mA or .6A

The SS-11A (Classic) by AMT Electronics is a versatile and powerful preamp designed to deliver a wide range of classic tube-driven guitar tones.