KORG KR55 PRO Rhythm Machine

Enrich Your Practice and Rehearsal Sessions

Practicing your instrument and rehearsing with other musicians is simply more fun with the Korg KR-55 Pro rhythm machine. You have instant access to 24 live-recorded rhythms complete with variations, fills, and endings, and the ability to record and save your sessions to SD card. With one mic input, two instrument inputs, and a line input, up to four musicians can jam together using the KR-55 Pro as a drummer and mixer. And with the ability to record yourself along with the rhythm track directly to an SD card, the Korg KR-55 Pro can instantly turn any practice session into a songwriting session.

Built-in tuner and effects

As soon as you sit down with your instrument, the Korg KR-55 Pro is a great practice partner. Use its built-in tuner to tune up, fine-tune your sound with the 3-band EQ, then add some reverb for that final polish. And when you engage the Acoustage Virtual Surround Technology, you'll be rewarded with an immersive surround image from any stereo playback system.

Korg KR-55 Pro Rhythm Machine Features:

Rhythm machine with 24 live-recorded drum rhythms for practice and rehearsal
XLR mic input, 2 instrument inputs, and line inputs support up to four musicians
Rhythms feature variations, fills, and endings
Select rhythms with the press of a button, or trigger them hands-free with a footswitch (sold separately)
3-band EQ for fine-tuning your sound, reverb effect for final polish
Supports multitrack recording for saving your practice sessions and song ideas
Chain patterns together to create complete songs
Powered via battery or 9V adapter (included)

Specification

Rhythm Styles: 24 rhythm styles, two variations for each rhythm style, each variation has three patterns (basic, fill-in 1, fill-in 2), ending

Tempo: 48–240 bpm

Rhythm Chain function: 30 banks (up to 999 measures can be registered in each)

Recorder Function

Recording format: PCM audio WAV format (file name extension .wav), 44.1 kHz, 16-bit

Recording time: Depends on the SD card used; approximately 100 minutes per 1 GB

Maximum continuous recording time: 3 hours

Number of songs: Maximum 50

Number of multitrack recordings: Depends on the remaining free capacity of the SD card

Undo/Redo: Once

Player Function

Playback formats: PCM audio WAV format (file name extension .wav) 44.1 kHz, 16-bit, Stereo

Maximum data size (time): Depends on the memory card used; approximately 100 minutes per 1 GB (for WAV data)

Maximum number of data files (number of folders): Up to 99 songs (per folder); a total of eight folders M1–M8 inside the PLAYER folder can be used.

Playlist function: 10 banks (up to 24 songs can be registered in each)

Mixer Effect Section

Effects: Reverb effect

Equalizer: BASS, TREBLE

Other: ACOUSTAGE (wide stereo effect)

Tuner Function

Scale: 12-note equal temperament

Type: Chromatic

Calibration: 435–445 Hz

Tuning Guide tone: Three types (guitar, bass, piano)

Display: 7-segment four-digit LED

SD Card

Usable cards: SDHC card 4 GB–32 GB (recommendation)

Input Jacks

MIC IN jacks: XLR-3-32 type (balanced), input impedance 4.7k ohm, nominal level -43 dBV

INPUT 1 jack, INPUT 2 jack (guitar, bass): 1/4" (6.3 mm) monaural phone jack (unbalanced), input impedance 1M ohm, nominal level -26 dBV

AUX INPUT jack: 1/8” (3.5 mm) stereo mini-phone jack (unbalanced), input impedance 10k ohm, nominal level -17 dBV

FOOT SW jack: 1/4” (6.3 mm) stereo phone jack, usable foot switch: VOX VFS5 foot switch

Output Jacks

LINE OUT L/R jack: 1/4" (6.3 mm) monaural phone jack (unbalanced), maximum Level: 0dBV 30mW 32 ohm

HEADPHONE jack: 1/8” (3.5 mm) stereo mini-phone jack, maximum Level: 0dBV 30mW 32 ohm

Power Supply

Power Supply: DC 9V, six AA batteries (alkaline or nickel-metal hydride are supported)

Battery Life: Approximately 7 hours (when using alkaline batteries or nickel-metal hydride batteries)

* Varies depending on the batteries used and the conditions of use