S1 Pro+ FRFR Full Range Flat Response

S1 Pro+

The S1 Pro+ is the first Bose product to have the Full Range Flat Response ToneMatch Preset. Use it with guitar amp modellers like the Neural DSP Quad Cortex, Fractal Axe FX, Kemper Profiler Stage or Player, Line 6 Helix or Stomp, Boss GT-1000.

You access it using the Bose App. Got to

Settings

EQ

Channel (you choose 1 or 2)

Instrument

ToneMatch Presets

Utility

Full Range Flat Response

When using an amp modeler pedal, for best performance, use the Bose app to select the Full Range Flat Response (FRFR) ToneMatch preset for that channel.

FRFR defined

An 'FRFR' speaker, which stands for Full Range, Flat Response, is designed to reproduce audio signals without altering their frequency response. Unlike traditional guitar or bass amplifiers that color the sound, FRFR speakers aim to provide a neutral and accurate representation of the input signal. These speakers are commonly used with digital modeling devices, such as amp modelers, digital effects processors, and software-based guitar rigs. By maintaining a flat frequency response, FRFR speakers allow musicians to hear their modeled tones exactly as they were intended, making them a popular choice for live performances and studio recording.

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