Boss IR-2 Preamp/Rack Amplifier

Boss IR-2 Amp & Cabinet — Studio-Grade Amp Modeling in a Stompbox

The Boss IR-2 Amp & Cabinet is a compact amp emulator and cabinet IR loader designed for guitarists seeking consistent, studio-quality tone at any venue or studio. By combining eleven modeled amp types with Celestion Digital impulse responses, this pedal captures the dynamic feel of a real tube amp and mic'd cabinet for direct output to a house PA, audio interface, or headphones. Players who value reliable, repeatable tone without the hassle of transporting heavy gear will appreciate what this model delivers.

What Sets the IR-2 Apart in the Amp-Sim Category

Standout features include advanced DSP and a pedalboard-friendly size. Audio is processed with 32-bit floating-point architecture at 96 kHz, plus 24-bit AD conversion using Roland's Adaptive Focus method for a clear signal-to-noise ratio. The pedal comes loaded with eleven Celestion Digital cabinet IRs and provides eleven user slots, allowing you to add your own captures via USB-C and the dedicated IR Loader app for macOS and Windows. With independent amp and cab activation, use it as an amp sim, an IR loader, or both together.

Tone Engine and Amp Selection

Inside the IR-2 lies its platform of eleven amps, ranging from classic tube combos to high-gain stacks and BOSS originals like the Brown type from the Katana series. Switch between two amp/cab setups in real-time using the pedal switch or an external footswitch with the CH SEL jack.

• Amp Types: 11 modeled platforms — everything from clean Fender-style combos to high-gain Marshall, Soldano, and Mesa-inspired sounds
• Players can load third-party IRs in WAV format (up to 500 ms) via USB-C, offering tailored cabinet sounds for any genre or preference.
• Processing: 32-bit floating point at 96 kHz — maintains dynamics and headroom throughout the gain range

Controls and Real-Time Shaping

Quick access to tone shaping is provided by amp-style dual concentric controls. The Ambience knob introduces natural space, and three reverb types can be accessed through a hidden menu for further customization.

• EQ Section: Bass, Middle, Treble — intuitive three-band tone stack for on-the-fly tweaks
• Ambience adjustments add depth to your sound without masking the original signal, perfect for adapting to different acoustic environments.
• Gain and Level: Independent GAIN and LEVEL knobs — dial in anything from edge-of-breakup tones to saturated leads

Connectivity and Integration

Drop this model into any pedalboard or recording setup thanks to its versatile I/O. A mono input accepts standard 1/4-inch connections, while stereo outputs send the signal to a PA or interface, and a dedicated headphone jack makes for silent practice.

• Inputs: 1/4-inch TS INPUT, 1/4-inch TRS RETURN, CH SEL footswitch jack — supports mono guitar and stereo effects return
• Outputs: 1/4-inch OUTPUT A (MONO), OUTPUT B, SEND, 3.5 mm TRS PHONES — connect to PA, amp return, interface, or headphones
• Effects Loop: Mono/stereo send and return — place modulation, delay, and reverb pedals after the amp simulation
• Direct USB-C connection enables recording into a DAW or mobile device, plus IR management without a separate interface.

Who Is the IR-2 Built For

This instrument is a solid pick for gigging guitarists dealing with unpredictable backline, low-volume requirements, or travel restrictions. Home recordists can make use of direct USB-C recording, while apartment players enjoy full amp-and-cabinet tone through headphones. Hybrid rigs—drive pedals up front, modulation and delay in the loop—fit naturally, and optional 9V battery power makes it a reliable portable backup.

BOSS Pedal Heritage and Build Quality

The IR-2 continues the tradition of BOSS's compact pedal design, fitting into the classic stompbox footprint established in the late 1970s. With a rugged build, the pedal weighs 450 g and measures 73 × 129 × 59 mm, so it suits crowded boards yet remains sturdy underfoot. BOSS backs the unit with a five-year warranty for confidence on the road.