Log in

Log in

User name / Email Password

Remember me

Forgot your password ?

or

Create an account

or

Log in using a Facebook account

EN

Gear
- All brands
- Studio & Home Studio
- Computer Music
- Electronic instrument
- Guitars
- Bass Guitars
- Drums & Percussion
- DJ Gear
- PA & Live Sound
- Lighting
- Headphones
- Other musical instruments
- Misc music/audio gear
- User manuals, photos, videos...
- Studio & Home Studio
- Amps & Monitors
  - Amps & Monitors
  - Studio monitors
  - Monitor Controllers
  - Monitor/Speaker Amplifiers
- Microphones
  - Microphones
  - Dynamic Microphones
  - Electrostatic microphones
  - Boundary microphones
  - Microphone Packages
  - Other Microphones
  - Ribbon Microphones
  - Stereo microphones
  - Accessories for Microphones
- Mixing Consoles
  - Mixing Consoles
  - Analog Mixers
  - Digital Mixers
  - DJ Mixers
  - FireWire/USB/mLan Mixers
  - Powered Mixers
  - Summing mixers
  - Options & Pieces for Mixers
- Pre-amplification
  - Pre-amplification
  - Channel Strips
  - DIs
  - Microphone preamplifiers
- Recorders/Multitracks
  - Recorders/Multitracks
  - Analog recorders
  - Digital recorders
  - Options & Pieces for Recorders/Multitracks
- Studio Effects
  - Studio Effects
  - Dynamic Processors
  - Effects Processors
  - Multi-Effects Processors
  - Spectral Processors
  - Synchronizers
  - Vocal Processors
  - Accessories for Effects Modules
  - Other Studio Effects
- Converters
  - Converters
  - Analog to Digital Converters
  - Analog/Digital Converters
  - Digital Converters
  - Digital to Analog Converters
- Home Studio Packages
- Studio tuition/press
- Computer Music
- Audio Interfaces
  - Audio Interfaces
  - USB audio interfaces
  - Ethernet audio interfaces
  - External Audio Interfaces
  - FireWire audio interfaces
  - Thunderbolt audio interfaces
  - Audio Interfaces for DJs
  - Firewire/USB/mLan Mixers
  - Internal Sound Boards
- MIDI Control Surfaces
  - MIDI Control Surfaces
  - PAD Controllers
  - Breath controllers
  - Control Surfaces for DJs
  - MIDI Consoles
  - MIDI Pedals
  - Motorized MIDI Control Surfaces
  - Other MIDI Control Surfaces
  - Other MIDI Controllers
- MIDI Keyboard Controllers
  - MIDI Keyboard Controllers
  - 25-Key MIDI Keyboards
  - 32/37-Key MIDI Keyboards
  - 49-Key MIDI Keyboards
  - 61-Key MIDI Keyboards
  - 73/76-Key MIDI Keyboards
  - 88-Key MIDI Keyboards
  - Digital Pianos
  - Electronic Instruments
  - Keytars
  - MIDI + Audio Keyboard Controllers
  - Other MIDI Keyboards
- Music Software
  - Music Software
  - Audio Plug-ins
  - Digital Audio Editors
  - Software Sequencers
  - Virtual Instruments
  - Computer Music software bundles
  - MIDI utility software
  - Music notation software
  - Other computer music software
- MIDI Interfaces
- Music with touch devices
  - Music with touch devices
  - Music software for iPhone / iPod Touch / iPad
  - Audio or MIDI interfaces for tablets/iDevices
  - Microphones for tablets/iDevices
  - Other peripherals and accessories for tablets/iDevices
  - Peripherals or accessories for tablets/iDevices
  - Stands and cases for tablets/iDevices
- Podcast & Livestream
  - Podcast & Livestream
  - Podcast & livestream interfaces or controllers
  - Microphone table stands & arms
  - Portable recorders
  - USB microphones
  - Video microphones
  - Other podcast & livestream gear
- Resources/audio samples
  - Resources/audio samples
  - CDs & Sound Banks
  - Books & Methods
  - Impulse response banks
  - MIDI-File Banks
  - Multimedia/Video Pedagogical Aids
- DAW Packs
- Other computer music gear
  - Other computer music gear
  - DSP Boards
  - Audio/MIDI Converters
  - Computer Gear (Non-audio)
  - Hardware Plug-ins Hosts
  - Multimedia Speakers
- Electronic instrument
- Drum Machines
- Hardware Sequencers
  - Hardware Sequencers
  - Groove Machines
  - Sampling Sequencers
  - Sequencers
- Keyboard Arrangers
- Samplers
- Sound Modules
- Synthesizers/Racks/Modules
  - Synthesizers/Racks/Modules
  - Analog Modeling Synth Racks/Sound Modules
  - Analog Modeling Synths
  - Analog Synth Racks/Sound Modules
  - Analog Synths
  - Digital Synth Racks/Sound Modules
  - Digital Synths
  - Hybrid synthesizers
  - Modular synthesizers
  - Other Synthesizers
  - Patch/Program Banks
- Workstations
- Electronic Drums
- Expansion Boards for Electronic Instruments
- Keyboard Amplifiers
- Accessories for Keyboards
  - Accessories for Keyboards
  - Keyboard Cases
  - Keyboard Gig-Bags
  - Keyboard Stands
  - Other Accessories for Keyboards
- Educational resources or electronic instruments press
- Guitars
- Acoustic Guitars
  - Acoustic Guitars
  - 12 String Guitars
  - Nylon String Guitars
  - Resonator Guitars
  - Steel String Guitars
  - Gypsy guitars
  - Other Acoustic Guitars
- Acoustic-Electric Guitars
  - Acoustic-Electric Guitars
  - Acoustic-electric Folk/Western guitars
  - Acoustic-electric nylon string guitars
  - Acoustic-electric 12 string guitars
  - Acoustic-electric resonator guitars
  - Other acoustic-electric guitars
- Electric Guitars
  - Electric Guitars
  - Hollow Body/Semi Hollow Body Electric Guitars
  - Solid Body Electric Guitars
  - Double Neck Electric Guitars
  - Lap Steels/Pedal Steels
  - Other Electric Guitars
- Guitar amplification
  - Guitar amplification
  - Guitar Amp Heads
  - Guitar Cabinets
  - Guitar Combo Amplifiers
  - Acoustic-Electric Guitar Amplifiers
  - Guitar Amp Simulators
  - Guitar Pre-amps
  - Guitar Stacks & Half Stacks
  - Guitar Amp Parts & Accessories
  - Guitar Power Amplifiers
- Guitar Effects
  - Guitar Effects
  - Delays & reverb pedals
  - Dynamic or volume pedals
  - Guitar multi-effects
  - Loopers
  - Modulation effects pedals
  - Saturation effects pedals
  - Wah-Wah/Auto Wahs/Filters for Guitar
  - Other guitar effects
- Guitar Replacement Parts
  - Guitar Replacement Parts
  - Guitar bodies
  - Guitar knobs
  - Guitar Machineheads
  - Guitar necks
  - Guitar pickguards
  - Guitar Pickups
  - Guitar Vibratos
  - Other Guitar Replacement Parts
- Left-Handed Guitars
  - Left-Handed Guitars
  - Left-Handed Acoustic Guitars
  - Left-Handed Acoustic-Electric Guitars
  - Left-Handed Electric Guitars
- Accessories/Supplies for Guitar
  - Accessories/Supplies for Guitar
  - AC Adapters for Pedals
  - Audio/MIDI Converters
  - Capos
  - Guitar Cases/Bags
  - Guitar Picks/Plectrums
  - Guitar Straps/Attachments
  - Guitar Strings
  - Guitar/Bass Stands
  - Pedalboards / Pedalcases
  - Slides
  - Tuners/Pitch Pipes/Tuning Forks
  - Other Guitar Accessories
- Guitar Packages
- Guitar tuition/press
- Bass Guitars
- Bass amplification
  - Bass amplification
  - Bass Amplifiers
  - Bass Amp Simulators
  - Bass Guitar Speakers
  - Bass Pre-amps
  - Bass speakers
- Bass Effects
  - Bass Effects
  - Bass Choruses/Phasers/Flangers
  - Bass Compressors/Limiters
  - Bass Distortions/Overdrives
  - Bass Eqs/Enhancers
  - Bass Multi-Effects
  - Bass Octavers
  - Bass Wah-Wahs/Auto Wah-Wahs/Filters
  - Guitar Effects
  - Other Bass Effects
- Bass guitars
  - Bass guitars
  - Electric Basses
  - Acoustic and acoustic-electric bass guitars
- Bass Packages
- Bass tuition/press
- Double Basses
  - Double Basses
  - Acoustic Double Basses
  - Electric Double Basses
  - Double bass accessories
- Bass guitar parts and accessories
  - Bass guitar parts and accessories
  - Bass Bridges
  - Bass cases
  - Bass Pickups
  - Bass Strings
  - Tuning machines for bass
  - Other Accessories for Basses
- Drums & Percussion
- Acoustic Drums
  - Acoustic Drums
  - Drum Sets
  - Bass Drums
  - Cymbals
  - Snare Drums
  - Toms
- Electronic Drums & Percussion
  - Electronic Drums & Percussion
  - Electronic Drum Kits
  - Electronic Drum Modules
  - Electronic Drum Pads
  - Multipads
  - Triggers
  - Triggers to MIDI Converters
  - Electronic Drum Accessories
  - Other Electronic Percussion
- Percussion
  - Percussion
  - Bongos
  - Cajons
  - Congas
  - Darbukas & Goblet Drums
  - Djembes
  - Bells
  - Chromatic Percussion
  - Gongs
  - Shakers, Egg Shakers & Maracas
  - Tambourines
  - Timbales
  - Other Non-Chromatic Percussion
- Drum Packages
- Drums & Percussion Hardware
  - Drums & Percussion Hardware
  - Cymbal Stands, Snare Stands & Other Stands
  - Double Bass Drum Pedals
  - Hi-Hat Stands
  - Racks & Fixing Accessories
  - Single Bass Drum Pedals
  - Other Drum & Percussion Hardware
- Drums tuition/press
- Accessories for Drums & Percussion
  - Accessories for Drums & Percussion
  - Dampers, Mufflers & Mutes
  - Drum & Percussion Cases, Gig Bags & Covers
  - Drum Amplifiers
  - Drum Heads
  - Drum Sticks, Mallets, Brushes...
  - Drum Thrones
  - Other Drum & Percussion Accessories
- DJ Gear
- Audio Interfaces for DJs
- DJ CD Players
  - DJ CD Players
  - All-in-one DJ Players
  - Rackmount DJ Players
  - Tabletop DJ players
- DJ Consoles
  - DJ Consoles
  - 2-Channel Mixers
  - 3-Channel Mixers
  - 4+ Channel Mixers
- DJ Controllers
  - DJ Controllers
  - USB DJ Controllers
  - Standalone DJ Controllers
- DJ Effects
- DJ Software
- Turntables
- DJ headphones
- DJ Packages
- Groove Machines
- Accessories for DJing
  - Accessories for DJing
  - Phono Cartridges
  - Bags for DJs
  - DJ furniture
  - DJ spare parts
  - Hard DJ cases
  - Slipmats
  - Styli
  - Timecode vinyls
  - Other DJ Accessories
- PA & Live Sound
- PA Speaker Cabinets
  - PA Speaker Cabinets
  - Active subwoofers
  - Full-Range PA Speaker Cabinets
  - PA Packages (Subs + Satellites)
  - Powered PA Speaker Cabinets
  - Subwoofers
  - 100v PA Speakers
  - Array Speaker Cabinets
  - PA Floor/Stage Monitors
  - Portable PA Speaker Cabinets
  - Other PA/Live Sound Speaker Cabinets
- PA/Live Sound Mixing Consoles
  - PA/Live Sound Mixing Consoles
  - Analog Mixers Studio/Live Sound
  - Digital Mixers Studio/Live Sound
  - DJ Mixing Consoles
  - Personal Monitor Mixers
  - Powered Mixers
  - Installation mixers
- Power Amplifiers
  - Power Amplifiers
  - 4-Channel Power Amps
  - Dual-Channel Power Amps
  - 100v Amplifiers
  - 6-Channel Power Amps
  - Mono-Channel Power Amps
  - Other Power Amplifiers
- Speakers/Drivers
  - Speakers/Drivers
  - Coaxial Speakers/Drivers
  - Horn Speakers
  - Tweeters/ Compression Drivers
  - Horns
  - Other Speakers/Drivers
  - Passive speaker crossovers
- Loudspeaker Management Processors
  - Loudspeaker Management Processors
  - Active Filters
  - Digital PA Controllers
  - Feedback suppression processors
  - Loudspeaker Management Systems
  - Noise Limiters
- Wired Microphones
  - Wired Microphones
  - Headset Microphones
  - Lavalier Microphones
  - Boundary microphones
  - Dynamic Microphones
  - Electrostatic microphones
  - Microphones Accessories
  - Microphones Bundles
  - Other Microphones
  - Stereo microphones
- Wireless gear
  - Wireless gear
  - Guitar Bass Wireless Systems
  - Headset Microphone Wireless Systems
  - Instruments Wireless Systems
  - Lavalier Microphone Wireless Systems
  - Wireless monitoring systems
  - Wireless systems
  - In-ear and ear-pads monitors
  - Transmitters/Receivers
  - Wireless Microphones
  - Wireless Accessories
- Live Sound Packages
- Live sound tuition/press
- PA & Live Sound Accessories
  - PA & Live Sound Accessories
  - Measuring Instruments
  - PA Cases & Bags
  - Speaker Stands
  - Accessories for PA Speaker Cabinets
  - DIs
  - Multi-Pair Cables
  - Power Blocs & Distributors
  - Stage Snakes
  - Other PA accessories
  - PA Accessories
- Lighting
- Automated fixtures
  - Automated fixtures
  - Color Changers
  - DMX Effects
  - Moving Heads
  - Moving mirrors
- Conventional Fixtures
  - Conventional Fixtures
  - Blinders, Floods, ...
  - Followspots
  - Fresnels
  - PARs (Parabolic Aluminized Reflectors)
  - PCs (Plan Convexes)
  - Profiles
  - Other Conventional Fixtures
- Effects Projectors (Non DMX)
- Lasers
  - Lasers
  - Lasers 500mW and up
  - Lasers less than 500mW
  - Other Lighting Effects & Lasers
- Lighting Controllers
  - Lighting Controllers
  - Computerized Lighting Controlers
  - Other Lighting Controllers
- Lighting Desks
  - Lighting Desks
  - Lighting Desks dedicated to Conventional Fixtures
  - Lighting Desks dedicated to moving Fixtures
  - Mixed Lighting Desks
  - 0/10v Lighting Desks
- Lighting Effects Machines
  - Lighting Effects Machines
  - Fog Machines
  - Smoke Machines
  - Other Machines (Snow,Foam,Bubble,Confetti)
- Dimming Packs
  - Dimming Packs
  - 0/10v Dimming Packs
  - DMX Dimming Packs
- Lighting Packages
- Strobes
- Trusses, Rigging and Stages
- Lighting Accessories
  - Lighting Accessories
  - DMX Accessories
  - Lighting Cables
  - Other Lighting Accessories
- Headphones
- DJ headphones
- HiFi/audiophile headphones
- In-ear and ear-pads monitors
- Studio headphones
- Headsets
- Nomadic headphones
- Accessories for headphones
- Headphone Amplifiers
- Misc. headphones
- Other musical instruments
- Pianos & Organs
  - Pianos & Organs
  - Acoustic Pianos
  - Digital Pianos
  - Electric Pianos
  - Organs
  - Accessories for Pianos & Organs
- Bowed Intruments
  - Bowed Intruments
  - Accessories for Bowed Instruments
  - Cellos
  - Electric Cellos & Double Basses
  - Electric Violins
  - Other Bowed Intruments
  - Violins & Violas
- Wind Instruments
  - Wind Instruments
  - Accordeons
  - Bassoons
  - Bombardes
  - Bugles/Cornets/Flugelhorns
  - Clarinets
  - Concertinas/Bandoneons
  - Didgeridoos
  - Electronic Wind Instruments
  - Flutes/Piccolos
  - Harmonicas
  - Horns/Mellophones
  - Melodicas
  - Oboes
  - Recorders/Whistles/Tin Whistles
  - Saxophones
  - Trombones
  - Trumpets
  - Tubas/Euphoniums/Saxhorns
  - Accessories for Wind Instruments
  - Other Wind Instruments
- Accessories for Musical Instruments
  - Accessories for Musical Instruments
  - Accessories & Supplies for Basses
  - Accessories & Supplies for Drums & Percussion
  - Accessories & Supplies for Guitars
  - Accessories for Wind Instruments
  - Metronomes
  - Music Stands
  - Other Accessories for Musical Instruments
- Other Instruments
  - Other Instruments
  - Banjos
  - Mandolins
  - Ukuleles
  - Other Acoustic Instruments
  - Other Plucked Instruments
- Misc music/audio gear
- Cables and connectors
  - Cables and connectors
  - Audio Splitters/Mergers
  - Cable Testers
  - Cables by the Meter
  - Connectors
  - MIDI Cables
  - Mono/Stereo Cables
  - Multi-Pair Cables
  - Optical/ADAT Cables
  - Patch Bays
  - Stage Snakes
  - Other Cables/Connectors
- Hi-Fi
  - Hi-Fi
  - Audio CD Burners
  - CD/DVD Players
  - Hi-Fi Amplifiers
  - Hi-Fi Speakers
  - Hi-Fi Stereos
  - MD Decks
  - Portable MP3 Players
  - Hi-Fi turntables
  - Other Hi-Fi Products
  - Wireless speakers
- Video & VJing
  - Video & VJing
  - VJ Equipment
  - VJ Software
  - Accessories for Video
  - Computer Monitors
  - Other Video Equipment
  - Pocket cams
  - Video & VJ Packages
  - Video Cameras/Camcorders
  - Video Cards
  - Video Projectors
  - Video Software
- Bags/Gig-Bags
  - Bags/Gig-Bags
  - DJ Bags/Gig-Bags
  - Guitar/Bass Bags and Cases
  - Keyboard Bags and Cases
  - Other Bags/Gig-Bags
- Cases
  - Cases
  - DJ Cases
  - Keyboard Cases
  - Other Cases
- Furniture for Musicians/Studios
  - Furniture for Musicians/Studios
  - Desks/Workstations for Studios
  - Other Furniture for Musicians/Studios
  - Seats for Musicians
  - Vocal Booths/Acoustic Enclosures
- Merchandise
- Other Misc. Products
- Sound Isolation & Acoustic Treatment
  - Sound Isolation & Acoustic Treatment
  - Material For Modular Sound Isolation
  - Vocal Booths/Acoustic Enclosures
- Stands & Racks
- Tools for musicians
Reviews
Guides
- Guides
- All guides
- Tops
- Buying guides
- Getting started
- Recording
- Mixing
- Mastering
User reviews
Forums
Classifieds

Yamaha QX21

My gear 16 members own it

Sequencer from Yamaha

Write a user review

$88 market value Outdated value

Overview Overview

Where to buy QX21?

Less

New
Second-hand

There are no classified ads for this product.

New ad alert

$88 market value Outdated value

Tech. sheet

Manufacturer: Yamaha
Model: QX21
Category: Sequencers
Other names:qx21, qx 21

We have no technical specifications for this product
but your help will be much welcomed

»

Other Yamaha sequencers

Other categories in Hardware Sequencers

Where to buy QX21?

Less

New
Second-hand

There are no classified ads for this product.

New ad alert

$88 market value Outdated value