Doepfer LMK4+


Professional 88 key weighted piano action midi master keyboard

Available on back-order

SKU: DOEPLMK4 Category: Brand:


From the Doepfer website….

LMK4+ is our most powerful MIDI master keyboard with 8 split zones, 128 memories and a lot of free programmable controllers ( 2 wheels, 2 sliders, one rotary potentiometer, 2 footcontrol connectors, 2 footswitch connectors, after touch). LMK4+ meets all conditions one would expect from a high-end master keyboard.

The LMK plus series of MIDI Masterkeyboards established in the musician scene during the last few years. All keyboards of the LMK-plus series are equipped with the same high quality 88 keys piano-type keyboard TP/40GH with real hammer mechanics. This type of hammer mechanics does not compare to low cost hammer mechanics offered by some competitors (not only a simple metal lever beyond each key).

The most important features of LMK4+ at a glance:

high quality keyboard TP/40GH with real piano style action and hammer mechanics, 88 keys

grey flightcase with handle and removable lid
(not suitable for shipment via mail/ parvel service/ UPS/ railway/ airfreight and so on, for that the original carton has to be used)

Velocity resolution max. 127 steps resolution, dependig upon selected velocity curve

Adjustable velocity reduction factor for black keys

Monophonic aftertouch (Channel-aftertouch)

2-line, 16-character blue LC display, adjustable backlight/contrast

operation via 24 buttons grouped in three rows of eight, 8 buttons with blue rectangle LED display

2 wheels: one spring-loaded and one without spring, MIDI functions free assignable

2 sliders (60 mm fader), MIDI functions free assignable

1 rotary control (rotary potentiometer), MIDI function free assignable

1 endless rotary encoder for data input

one Midi Out 1
one Midi Out 2
one USB connector, USB2.0, full speed (not high speed), the USB interface outputs the same data as the Midi output 1

1 MIDI input that is treated by the LMK4+ as separate zone (e.g. for connecting/managing a second keyboard or bass pedal)

External 1/4″ input-jack for double-footswitch (Sustain and Sustenuto function, e.g. VFP2

2 external 1/4″ input-jacks for foot controller / sweep pedal

Sending of:

  • MIDI program change
  • MIDI program bank (controllers #0 and #32)
  • MIDI Start, Stop, Continue, Clock
  • All notes off all MIDI channels (panic key)

Wheels, sliders, aftertouch sensor, rotary potentiometer, pedals and footswitches can be assigned to any MIDI-Controller (including pitch bend and aftertouch)

8 user definable controllers (# 0…127 can be assigned)

Footswitch-activated preset change

Adjustable aftertouch effect if assigned to pitch (positive/negative)

Proportional volume control of different zones with one controller

preset change via incoming program change messages (disengageable)

MIDI dump of a single preset or for all presets

32 velocity response curves

8 aftertouch response curves

128 memories (presets). The following parameters can be adjusted/defined by the user in each of the 128 presets:

  • 8 split zones with corresponding parameters (see below)
  • assignment of the controllers (wheels, sliders, rotary knob, pedals, footswitches, after touch etc.) to MIDI functions (pitch bend, modulation, breath controller, aftertouch, volume, panorama, portamento, sustain, soft pedal, sostenuto and 8 user-defined controllers)
  • name of the preset (up to 8 characters)
  • preset tempo (MIDI-clock)
  • sending of start, stop or continue when the preset is called-up
  • preset-pointer (number of the next for preset switching via footswitch)

Each preset contains 8 overlapping keyboard-keyboard zones. The following features can be defined/adjusted by the user in each of the 8 zones

  • upper / lower key
  • MIDI channel (1…16)
  • assigned MIDI output (1, 2, 1+2 or none)
  • for the new version with USB the USB interface transmits the same data as Midi Out 1
  • usage of the zone for internal keyboard or MIDI input
  • any transposition in semitone increments/ decrements
  • selection of one of 32 velocity response curves
  • selection of one of 8 after touch response curves
  • activity of each controller on/off (i.e. which of the before assigned controllers is active in the zone)
  • program change, bank number (MIDI ctr. # 0/32) and volume value sent when preset is called up (disengageable)
  • Piano mode on/off (i.e. sending of a note-on event at minimal key motion)

XLR connector for external power supply

88 keys: about 155 x 26.5 x 10.5 cm without ball corners
88 keys: about 157 x 28 x 12 cm with ball corners

88 keys: about 24 kg

external AC adapter for power supply (AC adapter for 230V AC and European type of mains connector is included, adapters for other voltages or other mains connector types has to be purchased by the customer in his country, 7…12V/500mA DC required), single XLR connector available instead of the 230V power supply
Remark for version 2 (with USB): power supply via USB is not possible because of the required supply current !

The price include a 230V power supply with European plug type, but they do not include the optional double foot switch and foot controller. Please order these parts separately if required (see Accessories).


Additional information

Weight 9.5 kg
Dimensions 50 × 53 × 53 cm