AMT B1

The AMT B1 is a JFET guitar preamp pedal from AMT Electronics, part of the company's Legend Amp series¹². It is a preamp with amp and cab simulation features, built to deliver what AMT describes as superior high gain distortion of the kind found in the Bogner Sharp Channel Amplifier¹³. AMT characterizes the sound as "monstrous in tone, aggression, and provides massive amounts of gain. Thunderous lows, screaming highs, and scoopable mids"¹.

What the B1 does

The B1 is a metal-oriented preamp: AMT's media center groups it under the heading "AMT Legend Series, Metal (B1 / E1 / P1)", alongside the AMT E1 and AMT P1⁴. Its feature set, as listed by AMT, covers the stages of an amplifier chain in one box:

• Analog Preamp with Clean / Low gain / High gain modes²
• Compressor²
• Noise Gate (global setting)²
• Power Amp with 9 types²
• IR cabsim with 1 IR for both L/R channels per preset⁵

A 2015 demo video on AMT's media center, "B1, modern metal tone demo", also lists the Power Amp with 9 types among the pedal's features⁶.

The controls

The B1's knobs are the classic preamp layout: LEVEL, GAIN, LOW, MID, and HIGH¹.

On top of the knob controls, the analog preamp offers Clean, Low gain and High gain modes, and the power amp section offers nine types, so the pedal can be shaped from a clean platform through to a modern high gain voice².

Outputs: amp or direct

The B1 carries two signal outputs, and which one you use depends on where the pedal sits in your setup¹:

• DIRECT AMPLIFIER OUT for guitar amplifier use¹
• CAB SIMULATION OUT for mixer, or studio use¹

In practice, the Direct Amplifier Out feeds the front of a real amp, while the Cab Simulation Out carries the pedal's IR cab simulation, letting the B1 go straight into a mixer or audio interface without a speaker cabinet¹²⁵.

Power and bypass

The B1 runs on a 9V battery or adapter. For an adapter, AMT recommends its own DC 12V/1.25A or DC 9V/0.85A unit¹.

Videos

Click to load

Click to load

Click to load