- Manufacturer: BOSS - Model Name: TR-2 - Type: Tremolo Effect Pedal - Control Knobs: RATE, DEPTH, WAVE - Accessories: Box - Manual: Instruction Manual Specifications and Power Power: 9V battery (alkaline or carbon) or AC adapter (PSA series) Size: 73mm (W) x 129mm (D) x 59mm (H) Weight: Approx. 385g (including battery) The BOSS TR-2 is a compact tremolo effect pedal released in 1997, popular among many guitarists for its simple operation and high-quality sound. It reproduces classic tremolo effects while also offering the flexibility to adapt to modern music scenes. Main Features and Controls The TR-2 can be operated intuitively with the following three knobs: RATE: Adjusts the speed of the tremolo. DEPTH: Sets the depth of the effect, i.e., the range of volume change. WAVE: Continuously adjusts the waveform shape; turning it to the left creates a smooth triangle wave, and to the right creates a sharp square wave. Recommended Setting Examples The TR-2 offers a variety of settings to suit various music styles: Gentle Tremolo (for ballads) RATE: 3 DEPTH: 4 WAVE: 3 Adds depth and emotion to the song with a gentle sway. Vintage Amp Style RATE: 6 DEPTH: 8 WAVE: 5 Reproduces a classic tremolo sound, creating a nostalgic atmosphere. Machine Gun Sound (experimental effect) RATE: 10 DEPTH: 10 WAVE: 10 Allows for impactful performances with intense staccato sounds. Notes and Disadvantages Volume Drop: You may feel a slight decrease in volume when the effect is turned on, but many users consider it to be negligible. No Tap Tempo: The TR-2 does not have a tap tempo function, so you will need to manually adjust the knobs when changing the tempo in real-time during a live performance. Artists and Application Examples The TR-2 is used by many professional guitarists, such as Tom Morello of Rage Against the Machine. It also works well in various genres, including surf rock and ballads.