You do not have permission to edit this page, for the following reasons:

This IP address has been blocked from editing Wikipedia.
This does not affect your ability to read Wikipedia pages.
Most people who see this message have done nothing wrong. Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.

The IP address or range 54.163.0.0/16 has been blocked (disabled) by ‪Blablubbs‬ for the following reason(s):

The IP address that you are currently using has been blocked because it is believed to be a web host provider or colocation provider. To prevent abuse, web hosts and colocation providers may be blocked from editing Wikipedia.
You will not be able to edit Wikipedia using a web host or colocation provider because it hides your IP address, much like a proxy or VPN.
We recommend that you attempt to use another connection to edit. For example, if you use a proxy or VPN to connect to the internet, turn it off when editing Wikipedia. If you edit using a mobile connection, try using a Wi-Fi connection, and vice versa. If you are using a corporate internet connection, switch to a different Wi-Fi network. If you have a Wikipedia account, please log in.
If you do not have any other way to edit Wikipedia, you will need to request an IP block exemption.

How to appeal if you are confident that your connection does not use a colocation provider's IP address:
If you are confident that you are not using a web host, you may appeal this block by adding the following text on your talk page: ((unblock|reason=Caught by a colocation web host block but this host or IP is not a web host. My IP address is _______. Place any further information here. ~~~~)). You must fill in the blank with your IP address for this block to be investigated. Your IP address can be determined here. Alternatively, if you wish to keep your IP address private you can use the unblock ticket request system. There are several reasons you might be editing using the IP address of a web host or colocation provider (such as if you are using VPN software or a business network); please use this method of appeal only if you think your IP address is in fact not a web host or colocation provider.

Administrators: The IP block exemption user right should only be applied to allow users to edit using web host in exceptional circumstances, and requests should usually be directed to the functionaries team via email. If you intend to give the IPBE user right, a CheckUser needs to take a look at the account. This can be requested most easily at SPI Quick Checkuser Requests. Unblocking an IP or IP range with this template is highly discouraged without at least contacting the blocking administrator.

This block will expire on 17:28, 10 March 2024.

Even when blocked, you will usually still be able to edit your user talk page, as well as email administrators and other editors.

For information on how to proceed, please read the FAQ for blocked users and the guideline on block appeals. The guide to appealing blocks may also be helpful.

Other useful links: Blocking policy · Help:I have been blocked
Your IP address is in a range that has been blocked on all Wikimedia Foundation wikis. The block was made by ‪Jon Kolbert‬. The reason given is Open proxy/Webhost: See the help page if you are affected .
- Start of block: 18:27, 12 November 2023
- Expiry of block: 18:27, 12 November 2028
Your current IP address is 54.163.179.242. The blocked range is 54.163.0.0/16. Please include all above details in any queries you make. If you believe you were blocked by mistake, you can find additional information and instructions in the No open proxies global policy. Otherwise, to discuss the block please post a request for review on Meta-Wiki. You could also send an email to the stewards VRT queue at stewards@wikimedia.org including all above details.

You can view and copy the source of this page:

((Short description|Polyphonic synthesizer))
((More citations needed|date=November 2019))
((Infobox synthesizer |
image=korg_poly800.jpg|
image_caption=Korg Poly-800 with filter modification|
synth_name =  Korg Poly-800|
synth_manufacturer = [[Korg]]|
synthesis_type = [[Analog synthesizer|Analog]] [[Subtractive synthesis|Subtractive]]|
polyphony = 8 or 4 voices|
timbrality = [[Monotimbral]]|
oscillator = 1 or 2 [[Digitally controlled oscillator|DCO]]s per voice|
filter = 1 resonant [[low-pass filter|low-pass]]|
attenuator = 3 [[ADSR envelope|ADBSSR]]|
lfo = 1 [[triangle wave|triangle]] |
ext_control = [[MIDI]]|
memory = 64 patches|
fx = [[chorus effect|Chorus]]|
dates = 1983 - 1987|
price = $795|
keyboard = 49 keys |
left_control = [[Joystick]]
))

The '''Korg Poly-800''' is a [[synthesizer]] released by [[Korg]] in 1983.  Its initial list price of $795 made it the first fully programmable synthesizer that sold for less than $1000.  It features a 49 key non-velocity-sensitive keyboard, two buttons for data entry, and a joystick controller, which can modulate the DCO pitch or the VCF.  Though the Poly-800 has [[MIDI]], it does not feature MIDI [[MIDI#System Exclusive messages|SysEx]] functionality (except EX800 - the expander-version; or by modding the Poly800 with additionally selectable EX-firmware-ROM), and patches have to be backed up to cassette tape.  

It has 8-voice [[polyphony]] ([[paraphony]]) with one [[Digitally controlled oscillator|DCO]] per voice. It can be switched into double mode which stacks two DCOs for a fuller sound, but reduces the polyphony to 4 voices.  The DCOs are based around an arcade game chip which can only produce square waves, although multiple square waves can be combined to give an approximation of a sawtooth - or other waveforms.

A single analog resonant low-pass 24&nbsp;dB/oct VCF is shared for all voices.  Like a monophonic synthesizer, the filter was switchable between single or multiple trigger modes.  In single mode, the first key pressed triggers the filter envelope, and unless all keys are released, the filter does not re-trigger.  In multi mode, each key pressed in turn triggers the filter envelope, even if other keys are still pressed down. 

It had three digital ADBSSR envelope generators - actually there are nine - one for the level of each DCO and one for the shared filter.  The extra envelope settings are break-point and slope, which can be used to give a two-stage decay or to add a second attack phase. In double mode the individual DCO envelopes could be used to change the balance of DCO 1 and 2 during the decay/slope/sustain phases.

It also has a noise generator, an [[Low-frequency oscillation|LFO]], and a chorus effect. The Poly-800 could be run off batteries and had guitar strap pegs, allowing a performer to wear it like a guitar.  It was also available with reversed-colored keys, which gave an appearance similar to a [[Vox Continental]] organ.

==Sequencer==
It also sported a simple built in 256 step [[Music sequencer|sequencer]].<ref>((Cite web|url=https://www.soundonsound.com/music-business/history-korg-part-1|title=The History Of Korg: Part 1 ((!))|website=www.soundonsound.com|language=en-gb|access-date=2018-07-11))</ref>

Early versions only stored the settings while the synth had batteries in. Sounds and sequences will be lost if the synth has no batteries, and the synth will power up in a random state.  Sounds and sequences can be saves and loaded to cassette - or as a WAV or MP3 file.  Most Poly 800s have solder pads on the main circuit board for a memory battery, but Korg didn’t fit the battery on early versions. It is a fairly simple mod to fit a battery holder, but be aware that directly soldering lithium button cell batteries can be dangerous.

==EX-800==
((unsourced section|date=April 2021))
About a year after the Poly-800 was introduced, a keyboardless, rackmount/tabletop version, called the EX-800, was released, adding limited [[MIDI]] SysEx capability. After production of the original keyboard ended in 1985, the enhanced Poly-800 MkII was released. It featured a digital delay instead of a chorus effect, and included limited MIDI SysEx functionality. It was produced until 1987.

[[Siel]] produced a similar synthesizer, the [[Siel DK70|DK80]]

==Notable users==

* [[Orbital (groupe)|Orbital]]
* [[Depeche Mode]]
* [[Geoff Downes]]
* [[Jean Michel Jarre]]
* [[Jimi Tenor]]
* Suicide/Martin Rev
* [[Terry Poison]]
* [[Death in June]]
* [[Khooni Maut]]
* Les Joyaux de la Princesse
* [[Vangelis]]

== Modifications ==

The low price for a used unit (in the 1990s it fell to under $200) and partial analog design of the Poly-800 made it appealing for modification by hobbyists. There is a modification that adds two knobs to the [[Voltage-controlled filter|VCF]], increasing the filter's range and expressiveness, known as the [http://synthmod.net/korg/moog_slayer/ Moog-Slayer filter modification]; the [http://synthmod.net/korg/fm800/ FM-800 filter modification] which adds a pseudo [[Frequency modulation synthesis]] (FM) control to the filter; a modification for external audio input; and some users have added a switch to control the filter slope, adjusting it from a 4 pole (24db/oct) to a 2 pole (12db/oct).

It is also possible to install an additional EPROM containing the firmware of the EX800. That way it is possible to receive MIDI-sysex data, but keyboard-functionality will then be disabled. Before powering up the synthesizer users can select the firmware of choice by using a selective switch.

The most recent modification to the Poly-800 family is the [http://www.hawk800.com Hawk-800 Firmware upgrade] which is both a hardware and firmware modification, radically updating the features and capabilities of the synthesizer.<ref>((Cite web |url=http://www.hawk800.com/FeaturesCompleted.html |title=Hawk-800 Completed Features |access-date=2009-07-08 |archive-url=https://archive.today/20130125044642/http://www.hawk800.com/FeaturesCompleted.html |archive-date=2013-01-25 |url-status=dead ))</ref> There is also the AtomaHawk-800 which adds software and MIDI control to the more popular hardware modifications.

==References==
((reflist))

==External links==
* [http://www.synthmuseum.com/korg/korpoly80001.html Synth Museum]
* [http://www.vintagesynth.com/korg/poly800.php Vintage Synth Explorer]
* [https://archive.today/20130209225900/http://groups.yahoo.com/group/korgpolyex Yahoo! group for users and abusers of KORG POLY 800 and EX800 synths]
*[http://www.polynominal.com/site/studio/gear/synth/korg_ex800/index.html Korg poly800 resource info, sounds, pictures and mp3 demo]
* [https://www.youtube.com/watch?v=fPrp8a23gTE New patches from AnalogAudio1 for the Poly-800 II]

((Korg))
((Portal bar|Electronics|Music|border=yes))

[[Category:Korg synthesizers|P]]
[[Category:Analog synthesizers]]
[[Category:Polyphonic synthesizers]]

Pages transcluded onto the current version of this page (help):

Korg Poly-800 (edit)
Template:Ambox (view source) (template editor protected)
Template:Cite web (view source) (protected)
Template:Find sources mainspace (view source) (template editor protected)
Template:Hlist/styles.css (view source) (protected)
Template:Infobox (view source) (template editor protected)
Template:Infobox synthesizer (view source) (semi-protected)
Template:Korg (edit)
Template:Main other (view source) (protected)
Template:More citations needed (view source) (template editor protected)
Template:Navbox (view source) (template editor protected)
Template:Pagetype (view source) (protected)
Template:Portal bar (view source) (template editor protected)
Template:Reflist (view source) (protected)
Template:Reflist/styles.css (view source) (protected)
Template:SDcat (view source) (template editor protected)
Template:Short description (view source) (protected)
Template:Short description/lowercasecheck (view source) (protected)
Template:Template other (view source) (protected)
Template:Unreferenced (view source) (template editor protected)
Template:Unreferenced section (view source) (template editor protected)
Template:Unsourced section (view source) (semi-protected)
Module:Arguments (view source) (protected)
Module:Category handler (view source) (protected)
Module:Category handler/blacklist (view source) (protected)
Module:Category handler/config (view source) (protected)
Module:Category handler/data (view source) (protected)
Module:Category handler/shared (view source) (protected)
Module:Check for unknown parameters (view source) (protected)
Module:Citation/CS1 (view source) (protected)
Module:Citation/CS1/COinS (view source) (protected)
Module:Citation/CS1/Configuration (view source) (protected)
Module:Citation/CS1/Date validation (view source) (protected)
Module:Citation/CS1/Identifiers (view source) (protected)
Module:Citation/CS1/Utilities (view source) (protected)
Module:Citation/CS1/Whitelist (view source) (protected)
Module:Citation/CS1/styles.css (view source) (protected)
Module:Disambiguation/templates (view source) (protected)
Module:Find sources (view source) (template editor protected)
Module:Find sources/config (view source) (template editor protected)
Module:Find sources/links (view source) (template editor protected)
Module:Find sources/templates/Find sources mainspace (view source) (template editor protected)
Module:Infobox (view source) (template editor protected)
Module:Infobox/styles.css (view source) (template editor protected)
Module:InfoboxImage (view source) (template editor protected)
Module:Message box (view source) (protected)
Module:Message box/ambox.css (view source) (protected)
Module:Message box/configuration (view source) (protected)
Module:Namespace detect/config (view source) (protected)
Module:Namespace detect/data (view source) (protected)
Module:Navbar (view source) (protected)
Module:Navbar/configuration (view source) (protected)
Module:Navbar/styles.css (view source) (protected)
Module:Navbox (view source) (template editor protected)
Module:Navbox/configuration (view source) (template editor protected)
Module:Navbox/styles.css (view source) (template editor protected)
Module:Pagetype (view source) (protected)
Module:Pagetype/config (view source) (protected)
Module:Pagetype/disambiguation (view source) (template editor protected)
Module:Pagetype/setindex (view source) (template editor protected)
Module:Pagetype/softredirect (view source) (template editor protected)
Module:Portal (view source) (template editor protected)
Module:Portal/images/e (view source) (template editor protected)
Module:Portal/images/m (view source) (template editor protected)
Module:Portal bar (view source) (template editor protected)
Module:Portal bar/styles.css (view source) (template editor protected)
Module:SDcat (view source) (template editor protected)
Module:String (view source) (protected)
Module:Unsubst (view source) (protected)
Module:Wikitext Parsing (view source) (template editor protected)
Module:Yesno (view source) (protected)

Return to Korg Poly-800.

Retrieved from "https://en.wikipedia.org/wiki/Korg_Poly-800"