By aspect — in detail
The one genuinely contested axis, and it splits on a physical cause. The 49-note 2nd-generation synth-action keybed — medium tension, five velocity curves plus a fixed option, and channel aftertouch — is widely praised for how it plays: firm, springy, expressive and accurate to hit a target velocity. But a large, consistent camp of owners finds the keys mechanically NOISY on release: a loud clack that's fine through headphones but distracting for pianists and awkward when recording with a microphone (there are even DIY mods to quiet them). Whether that noise bothers you is the whole decision.
Measured
Nektar specs a 49-note 2nd Gen synth-action keyboard, velocity- and aftertouch-sensitive, with five velocity curves plus a fixed option, medium tension ('the activation force required is in the middle of the range established for professional keyboards'), pitch-bend and modulation wheels, and octave shift. The noise is mechanical (key return), not electronic; multiple long-term owners confirm the keys work reliably for years, so it is a comfort/recording concern rather than a fault.
Where it splits
A genuinely enjoyable synth action — firm, springy, velocity-accurate, with real aftertouch65%
“nicely firm, but supple, synth action that I found enjoyable to play”
Bob Thomas · Sound On Sound
Too clacky to live with — the keys are loud on release, a problem for pianists and mic recording35%
“I would have a Nektar if the keys were at least as quiet as a cheap M-Audio, for the connectivity.”
u/paracog · r/reasoners
Eight velocity- and pressure-sensitive pads with tri-colour LED illumination that reviewers like: they trigger at a very low threshold (good for ghost notes and flams), take note/CC/chord assignments via a quick Pad Learn, and a Pad Bank button doubles them to 16 within a pad map. Because they're pressure-sensitive they add a layer of expression rare at the price; the practical limit is eight physical pads, and some players simply don't use them.
“I particularly loved having the ability to assign notes, chords and separate MIDI channels to the pads”
Bob Thomas · Sound On Sound
“The keys are, along with the eight pressure pads, velocity sensitive and feature after touch.”
Mixdown Magazine
Measured
8 velocity- and pressure-sensitive LED pads (green/red/orange), five velocity curves plus fixed, Note-learn / Chord-learn / Pad Repeat, notes or MIDI CC assignable, saved across 8 pad maps. A Pad Bank button accesses a second set of 8 for 16 pads within a map; Nektar says they trigger 'at an extremely low threshold' to capture ghost notes and flams.
Broadly liked, with a few recurring nits. Nine 30mm faders, eight endless encoders, eight assignable LED buttons and six transport buttons give plenty of hands-on control, and Nektar's soft-takeover/catch-up ('Null') logic keeps parameters from jumping when you switch modes. The nits: the small 128×64 mono LCD looks dated next to rivals; the continuous encoders have an acceleration curve that some find awkward for fine moves; and Panorama P4 owners point out the T4 has fewer physical controls than the P4 it replaced (no motorized fader, no dedicated mixer section).
“The unit itself feels solid but not too heavy, quite compact and with a good range of controls.”
Andy Jones · MusicTech
“way too slow when turning them slowly and then just fast enough when turning them quickly”
CrackheadBill · Gearspace
“it was NOT a worthy successor to the P4 imo”
u/IL_Lyph · r/reason
Measured
9 × 30mm faders, 8 assignable encoders, 8 assignable LED buttons, 4 navigation buttons (+shift for 4 more) and 6 LED transport buttons; every control is MIDI-programmable and stored across 10 presets. A 128×64 px custom LCD with a Focus (zoom) function provides feedback. DAW-integration files add automatic catch-up/soft-takeover; the 'Null' function does the same without software feedback. The older P4 additionally had a motorized fader and a P1-derived hardware mixer section that the T4 does not.
Integration
Strong consensus · 6 srcThe headline feature and the strongest praise. Two layers work together: Nektar DAW Integration (custom mapping for Bitwig, Cubase, GarageBand, Logic, Nuendo, Reaper, Reason and Studio One, giving mixer, transport and DAW-instrument control), and Nektarine — Nektar's own VST/VST3/AU plug-in host that maps the T4's controls to almost any software instrument, with the parameter names shown on the keyboard's screen. Reviewers called it a joy and said it rivals NI's Komplete Kontrol and Akai's VIP. Two real caveats: Ableton Live gets only generic Mackie Control (faders and pan, no session-view integration, and Nektar hasn't back-ported deeper support), and getting the most out of Nektarine takes some upfront setup that a few owners find fiddly.
“The deeper DAW integration is an absolute joy and Nektarine is genius.”
Andy Jones · MusicTech
“it's only faders and pan, and can't control session view at all bugs me something fierce”
u/roopurt5 · r/ableton
Measured
Nektar DAW Integration ships for Bitwig, Cubase, GarageBand, Logic, Nuendo, Reaper, Reason and Studio One; any other DAW is controlled via Mackie Control Universal (MCU) for basic transport/track/mixer functions. Nektarine hosts VST/VST3/AU instruments (layering up to 8 in Multi mode) with pre-made maps for popular plug-ins, on-screen parameter feedback and cross-DAW patch browsing. USB class-compliant (no driver). Ableton Live and Pro Tools have no dedicated Nektar integration beyond MCU / a Pro Tools mode.
A genuinely generous free-software package that's part of the value story. Beyond Nektarine itself (which you get for free with the board), the T4 bundles Bitwig Studio 8-Track — an 8-track DAW with 50-plus instruments and effects — plus, on current listings, five full Cherry Audio synth plug-ins (Mercury-6, PS-20, OctaveCat, DreamSynth and the Stardust 201 tape echo). The one caveat is that early units shipped Bitwig-only and the Cherry Audio plug-ins were added later, so confirm the current contents if you're buying mainly for the software; Bitwig 8-Track is also a less mainstream starter DAW than the Ableton Live Lite some rivals include.
“a copy of Bitwig comes free with the keyboard”
Andy Jones · MusicTech
“all the controls were already mapped out for me”
CrackheadBill · Gearspace
Measured
Current bundle per Nektar: Bitwig Studio 8-Track (50+ instruments/effects across up to 8 tracks, plus the Bitwig Essentials sample pack) and five full Cherry Audio plug-ins (Mercury-6, PS-20, OctaveCat, DreamSynth, Stardust 201), in addition to the Nektarine plug-in host itself. Earlier units shipped Bitwig 8-Track only.
Connectivity
Moderate · 3 srcBetter connected than the typical budget board, and a step up from Nektar's own Impact line. Alongside the USB-B port (data + bus power) there's a real 5-pin DIN MIDI Out, plus separate 1/4-inch expression-pedal and footswitch inputs. The MIDI Out means the T4 can drive an external hardware synth directly and even work as a standalone master keyboard with a suitable power/host. The limits: MIDI Out only (no 5-pin MIDI In), no USB-C, and no CV/gate.
“making it into a useful stand-alone master keyboard”
Bob Thomas · Sound On Sound
“It has ports for both Expression and sustain pedals.”
CrackheadBill · Gearspace
Measured
Rear panel: USB-B port (data + bus power, 500 mA, USB class-compliant), a 5-pin DIN MIDI Output socket, a 1/4-inch assignable footswitch input, a 1/4-inch expression-pedal input, and a power switch. No 5-pin MIDI In, no USB-C, no CV/gate. Runs from iOS via Apple's powered USB camera connection kit; MIDI Output can act as a USB-MIDI interface or send the T4's own data.
Portability
Moderate · 2 srcA desk controller rather than a travel board. It's USB bus-powered (no wall wart), which helps a laptop rig, and Sound On Sound called it 'somewhat petite, rather than small' — but at about 6.4 kg it's a fair bit heavier than a plastic budget 49-key, so it's a two-hands-to-move desktop object, not something bag-sized.
“Somewhat petite, rather than small, the T4 is USB class-compliant”
Bob Thomas · Sound On Sound
Measured
T4: 82 cm (L) × 27.7 cm (D) × 8 cm (H), 6.4 kg (~14 lb). USB bus-powered at 500 mA. (The 61-key T6 is 98 cm and 7.6 kg.)
Solid and reliable, with one honest caveat about materials. Reviewers call the curved-case chassis solid but not too heavy, and multiple long-term owners report years of flawless use across P4/P6/T4 boards. The caveat comes from a detailed owner: while everything works, the materials feel a notch below a premium keyboard, which fits the 'a lot of function for the money, not a luxury object' character.
“feels solid but not too heavy”
Andy Jones · MusicTech
“the materials feel of lesser quality than a nice keyboard”
CrackheadBill · Gearspace
“def a solid piece of gear”
u/Personalgig · r/reason
Value
Strong consensus · 4 srcA strong point of agreement: at roughly $250 you got a synth-action keybed with aftertouch, nine faders, eight encoders, eight pressure pads, a screen, a MIDI Out, and Nektar's deep DAW integration plus the Nektarine plug-in host and a real software bundle — a lot of capability, and software depth usually found on pricier gear. The counter-notes are that some Nektar P4 owners feel the older board was better value for hands-on control, and that discontinuation now makes it harder to find at the old price.
“It blows my mind that it's only $250.”
CrackheadBill · Gearspace
“I have the T4 and would mos def recommend.”
u/Mean-Ask6446 · r/reason
