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Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory
Alesis

Alesis ASP2 Sustain Pedal: Universal Keyboard Accessory

★★★★★4.6 (677 reviews)

Natural piano-style sustain action and universal polarity switching — expressive pedal control for any keyboard or synth on stage or in the studio.

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Overview

The Alesis ASP2 is a compact sustain pedal built for straightforward, reliable use across keyboards, synthesizers, and MIDI controllers. Its most distinctive practical feature is the polarity switch — a small toggle that resolves the common reverse-sustain behavior that occurs when a pedal and keyboard disagree on signal polarity. For players who move between different instruments or borrow gear, this means zero reconfiguration time. The chrome foot pedal and heavy-duty internal mechanism aim for a natural, piano-style action that communicates clearly underfoot without being stiff or mushy.

Built for both stage and studio contexts, the ASP2's compact footprint means it fits comfortably beside expression and volume pedals in any multi-pedal arrangement. The 6-foot 1/4" cable reaches most keyboard stand configurations without strain, and the rubber grip pads on the base engage well with carpet and low-pile surfaces. It's a binary sustain pedal — on or off — which covers the needs of the vast majority of keyboard players. Those requiring continuous controller input for half-pedaling will need a different tool, but for everyone else, the ASP2 delivers consistent, interference-free sustain that stays out of your way and lets you focus on the playing.

Key Features

Premium Response for Expressive Performances - Universal sustain pedal with chrome foot pedal for a natural, realistic pedal action

Universal Compatibility - Classic design with a conveniently located polarity switch for compatibility with all electronic keyboards

Built To Last - Premium build with a robust, heavy-duty mechanism for uncompromised reliability

Ultra Portable - Lightweight, ultra-compact aesthetic provides classic piano style sustain in portable footprint

Player-Centric - Specially designed rubber pads located on the pedals underside grips the floor and stays put while you play

Specifications

Type
Sustain Pedal
Compatibility
Universal (with polarity switch)
Cable Length
6 feet
Connector
1/4" phone plug
Construction
Heavy-duty mechanism with chrome foot pedal
Base
Rubber grip pads

Pros & Cons

👍 Pros

  • Universal polarity switch eliminates reverse-sustain issues across different keyboard brands without any software configuration.
  • 6-foot cable gives enough reach for typical live stage positioning and studio desk setups without feeling tethered.
  • Compact form factor doesn't compete for floor space with expression pedals or volume pedals in multi-pedal rigs.
  • Rubber grip pads provide real floor adhesion during normal playing — noticeably more stable than bare-plastic competitors.
  • Heavy-duty mechanism is rated for consistent response over extended use, a meaningful spec for players who sustain heavily in performance.

👎 Cons

  • Binary on/off switch design means no half-pedaling capability — pianists who rely on partial damper technique won't find that nuance here.
  • On polished or tiled floors under aggressive playing, the pedal can still migrate without a non-slip mat underneath.
  • No locking mechanism or angle adjustment — the flat profile works for most players but may not suit all foot positions comfortably.
  • 6-foot cable, while adequate for most setups, can be limiting in larger stage configurations or rack-mounted controller rigs.

Frequently Asked Questions

Yes — that's exactly what the polarity switch on the ASP2 corrects. Flip it before playing and the pedal will respond correctly. This is one of the most common issues with sustain pedals across brands, and the dedicated switch resolves it cleanly without software workarounds.
The ASP2 ships with a 6-foot cable terminating in a standard 1/4" phone plug. For most keyboard stands and stage setups, 6 feet is sufficient, but longer cable runs to rack-mounted equipment may require an extension.
The rubber pads on the base provide meaningful resistance on smooth floors and low-pile carpet. On polished hardwood or tile under dynamic playing, some movement is still possible — a non-slip mat under the pedal is a common workaround for aggressive players.
The ASP2 is a standard momentary switch pedal — it sends a binary sustain on/off signal. It does not support continuous or half-pedaling, which requires a specialized continuous controller pedal and compatible instrument firmware.
Yes, as long as the controller or keyboard has a standard 1/4" sustain pedal input jack. Most MIDI controllers and USB keyboards include this input — check your device's I/O spec to confirm.

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