MIDI ControllerOverreview

Novation Launchkey MK4 (49)

The go-to budget Ableton controller — a genuine semi-weighted keybed and a standout arp, with a velocity curve that splits its owners.

12 sourcesUpdated
$250Typical US price

Score aggregates reviewer opinions across topics.

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Novation Launchkey MK4 (49)

The short version

What to know.

A 49-key budget MIDI keyboard controller, around $250, built on full-size semi-weighted keys, nine faders, eight endless encoders, 16 velocity- and pressure-sensitive pads, a small OLED and deep DAW integration. Reviewers broadly agree it's one of the best-value budget controllers going: the Ableton Live integration is near-Push-level and automatic, the arpeggiator and chord/scale modes stand out, the software bundle is generous, and the semi-weighted keybed is a real step up from the synth-action keys on cheaper boards. The arguments start at the keys' velocity response — most players find it accurate and playable, but a recurring group of owners report the velocity curve is calibrated too soft even on its Hard setting, hurting dynamics, with no firmware fix promised. One heavyweight review also rates the pads and faders mediocre next to Akai's; the OLED is small; integration outside Ableton needs script setup and is less deep; and the connectivity is basic — a single 5-pin MIDI out, a sustain jack and USB-C, with no MIDI in and no CV. Build is mostly called solid-but-plastic, with a few reports of noisy keys.

About this product

The 49-key model — one of the two flagship MK4 sizes (with the 61) that carry full-size, semi-weighted keys and nine faders. Distinct from the 25/37 (synth-action keys) and the Launchkey Mini line (mini keys); those keybeds' complaints don't apply here.

Novation's Launchkey MK4 is the 2024 overhaul of the company's long-running mainstream MIDI keyboard line. The 49-key reviewed here is one of the two flagship sizes — with the 61 — that carry full-size, semi-weighted keys, nine faders and eight endless encoders, 16 RGB pads, a small OLED, and the deepest DAW integration Novation has shipped on a Launchkey.

It lands as the default budget recommendation for Ableton Live producers, and one of the most-praised value picks in its category. The Live integration, arpeggiator and chord modes draw near-universal praise; the flashpoint, as with most controllers, is the keybed — specifically how its velocity curve translates a player's dynamics.

A good fit for

  • Ableton Live producers who want deep, plug-and-play hands-on control at a budget price
  • Players who want a real semi-weighted keybed on a budget controller rather than synth-action mini-keys
  • Anyone who values a big software bundle, an excellent arpeggiator and chord/scale tools in one box

Think twice if

  • You're picky about velocity response and dynamics — the curve divides owners and there's no promised fix, so try it first
  • You mostly finger-drum on pads and want Akai MPC-grade feel
  • You need a compact, travel-friendly controller — the semi-weighted 49 is tall and heavy (look at the Launchkey Mini or 25/37)
  • You need MIDI in, CV/gate, or aftertouch on the keys — there's none (poly aftertouch is on the pads only)
  • Your main DAW isn't Ableton and you want the same zero-setup, deep integration

The reviewer consensus

Agreement &
disagreement.

1 / 9topics divide opinion
valuepadscontrolsintegrationsoftwareconnectivityportabilitybuildkeybed
1 Strong agreement7 Mostly agree1 Divided opinions

Common ground5

  • Best-in-class Ableton Live integration — auto-mapped and near-Push-level for the money, with Live Lite in the box
  • A genuinely useful control set: nine faders, eight endless encoders, a small OLED, and a standout arpeggiator plus chord and scale modes
  • Full-size semi-weighted keys that most find a real step up from the synth-action keybeds on cheaper controllers

Points of contention4

  • The keys' velocity curve: most players find the dynamics accurate, but a recurring group of owners say it's calibrated too soft even on Hard — and Novation has signalled no firmware fix
  • The pads and faders: praised as responsive with poly aftertouch by most, but the highest-weight review rates them mediocre and not up to Akai's for finger drumming
  • Integration beyond Ableton: superb in Live, but Logic, Cubase, Reason and FL need script setup and are less deep

A closer look.

9 topics · 1 divided
Left: criticalRight: positiveTighter lines: more agreement

Keybed

Leans positiveDivided opinions
Reviewer sentiment8 supporting sources
CriticalNeutralPositive

Band: opinion spread · Dot: weighted average

Sources split, and it centres on the velocity curve rather than the physical feel. Reviewers and most owners find the full-size semi-weighted keys a real step up from synth-action budget boards and perfectly playable; a recurring group of 49-key owners report the velocity curve is calibrated too soft even on Hard, so dynamics suffer — and Novation's support has signalled no firmware fix. There is no aftertouch on the keys (it's on the pads).

Measured

Novation specs 49 semi-weighted, piano-style (waterfall) velocity-sensitive keys with no aftertouch (polyphonic aftertouch is on the pads). The velocity response offers only Soft/Normal/Hard curves — no finer per-key adjustment — which is the crux of the owner complaints.

Where it splits
A genuine step up — the semi-weighted keys are playable and a cut above budget rivals80%

“The semi-weighted keys are credible and add authority, especially when playing sounds that correspond to real-world instruments that might have similar keys.”

MusicRadar
The velocity curve is badly calibrated — too soft for real dynamics, and unfixed20%

“even on hard mode it's WAY too soft.. feels like hard mode should be the soft mode and go up from there.. it's just very badly programmed and needs a firmware update to fix it.”

u/Druzelandia · r/Novation
Link to this topic

The hardware

Specifications.

Checked

Playing surface

Keys
49, semi weighted action
Pads
16 velocity-sensitive, RGBpoly aftertouch
Encoders
8 endless
Faders
9
Pitch / mod
Wheels
Display
OLED

Workflow

Arpeggiator
Yes
DAW integration
Ableton Live, Ardour, Bitwig Studio, Cubase, FL Studio, Logic Pro, Reason

Connection

USB
USB-C
MIDI
DIN out
Pedal inputs
Sustain
Power
USB bus power

Physical

Weight
4,080 g
Dimensions
730 × 263.5 × 93 mm

Manufacturer-published figures, not measurements · from novationmusic.com.

Follow the evidence

Sources 12

1–6 of 12 sources

Read with context

Limitations & method.

As of

What to keep in mind 5

  1. This is a read of where opinion lands as of July 2026. Controller firmware and DAW-integration scripts get updated over time, so quirks noted here — including the velocity-curve complaints — could be smoothed over in a later update.

  2. The keybed is the most personal part: how the velocity and dynamics feel depends a lot on your playing and your ears, so if you can, play one before you buy.

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