Best sustain pedals for keyboards

Almost every beginner keyboard arrives with either nothing in the pedal box or a small plastic footswitch that slides across the floor the moment you use it. Both are bad in the same way: they make pedaling something you fight rather than something you do.

A real sustain pedal is the cheapest meaningful upgrade a digital piano can get. It is heavier, it stays where you put it, it feels like the pedal on a real piano, and on the better ones it does something the footswitch cannot do at all.

We have not used these pedals. What follows is our reading of what each maker publishes; the method is on how we pick. One note: Yamaha’s own spec pages refused every request we made, so the figures for the FC4A come from a named retailer spec sheet and the product card says so.

What the pedal is actually for

On an acoustic piano, the right pedal lifts the dampers off the strings so notes keep ringing after your fingers leave the keys. It is how a piano sounds connected rather than clipped, and it is written into the music as pedal markings.

A digital piano reproduces that electronically, but only if something is plugged into the sustain jack. A beginner working through a method book without a pedal is playing the notes and leaving out an instruction printed on the page.

The three specs nobody explains

1. Polarity. A sustain pedal is a switch, and brands disagree about whether the switch should be open or closed at rest. Plug a pedal of the wrong polarity into a keyboard and it behaves backwards: everything sustains until you press the pedal, which then stops it. This is the single most common sustain pedal problem, and the simplest cure is a pedal with a polarity switch on the base.

2. Half-damper, also called continuous. A normal pedal is on or off. A half-damper pedal reports its position continuously, so a partial press gives partial sustain, which is what a pianist actually does. It requires support at both ends: Roland publishes the caveat itself, telling owners to move the pedal’s switch to the plain Switch position on instruments that do not support it.

3. Grip and weight. Unglamorous and the reason most people replace a pedal. A light plastic switch on a wooden floor migrates a few inches with every press until you are stretching for it. Weight and a rubber base fix it, and a longer body helps because your foot rests on the pedal rather than shoving it.

How we ranked these

How much it feels like a piano pedal first, then half-damper support, then whether it works with any keyboard, then whether it stays put on the floor, then room to grow. All from published specifications.

The picks

The Roland DP-10#ad is the best pedal here and the only one that publishes half-damper support. A function switch selects Continuous for gradual pedaling or Switch for plain on/off, the cable is 2.2 m for stacked setups, and a long rubber plate extends the footprint to 402 mm so your foot lands on rubber rather than on a sliding block. It weighs 700 g.

Honest limits: Roland does not publish the plug type or polarity, so compatibility cannot be fully confirmed from the spec sheet, and its own manual warns that on instruments without half-damper support you may have to move the switch. It is also the most expensive pedal here, for a feature a first-year player will not use.

The M-Audio SP-2#ad is the one we would buy for most beginners, and the reason is the switch on the base. Polarity is the problem that makes a cheap pedal look broken, and this one lets you flip it in five seconds rather than hunting through a keyboard menu. It has a piano-style chrome pedal, a rubber bottom specified to grip the floor, and a 6 ft cable with a standard quarter-inch jack.

What it does not do is half-damper — M-Audio publishes nothing about continuous operation, so treat it as an on/off pedal. M-Audio also publishes no weight or dimensions, and warns explicitly that the pedal is not for audio outputs.

The Yamaha FC4A#ad is the heavy one. At a published 2 lb 3 oz on a non-slip underside, with a body 10.9 inches deep, it behaves underfoot like a piano pedal rather than a switch. If your current pedal walks across the room, this is the direct fix.

It is explicitly on/off with no half-pedal operation, no polarity switch is published, and — the caveat we flagged above — every Yamaha spec page refused our requests, so those figures are retailer-sourced rather than from Yamaha.

Before you buy: check the keyboard

Does it have a sustain jack at all? The cheapest keyboards omit it. If there is no quarter-inch pedal input on the back, no pedal will help, and that omission is one of the things that separates a toy from an instrument — see are cheap keyboards worth it.

Does it have a pedal polarity setting? Many do, buried in the function menu. If yours does, a pedal without its own switch is fine.

Does it support half-damper? Usually listed on the specification sheet as half-damper or continuous pedal support. If it is absent, the Roland still works — it just works as an on/off pedal.

The rest of the starting kit, in the order we would buy it, is in what you actually need to start piano and keyboard accessories you actually need.