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Korg Sound on Sound Unlimited Track Recorder SR1

Item #: 
1274034481670   POS #:105798482
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Product Description:

Let the KORG SOS Sound on Sound Unlimited Track Recorder capture and preserve all of your inspired moments. Completely self-contained, the KORG SOS allows an unlimited number of overdubs, delivers generous effects, provides dozens of rhythms, and is even a handy chromatic tuner.Unlimited recording tracks = limitless possibilitiesKORG Sound on Sound...  Click To Read More About This Product

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Let the KORG SOS Sound on Sound Unlimited Track Recorder capture and preserve all of your inspired moments. Completely self-contained, the KORG SOS allows an unlimited number of overdubs, delivers generous effects, provides dozens of rhythms, and is even a handy chromatic tuner.

Unlimited recording tracks = limitless possibilities
KORG Sound on Sound is a handy-sized multitrack recorder that lets you play back your song while continuing to overdub more parts. You can overdub as many times as you like, without having to worry about running out of tracks. Pick a rhythm, chop out some guitar chords, lay down a vocal, add some harmonies, and play a solo”or 2, or 3, or 50. With the KORG SOS recorder, the possibilities are endless. Used as a sketchpad, Korg Sound on Sound preserves all of your musical ideas, from complex themes to inspired snippets and phrases.

KORG SOS saves each overdub individually
KORG SOS saves as individual WAV files. You can load each overdub directly into nearly any DAW software program as an individual track. The individual files are BWF (Broadcast Wave Format) compliant, meaning they contain timing information. So if you had overdubbed a track in the middle of the song, it will automatically align correctly in a BWF-supported DAW. You can also use the Finalize operation to automatically time-align each overdub track. KORG Sound on Sound records at 44.1 kHz/16-bit resolution, and saves recordings onto a convenient and reliable microSD or microSDHC card.

Unlimited undo/redo
KORG Sound on Sound is capable of an unlimited number of undo/redo operations. This is great when you are recording alternate takes of a guitar solo, for example. You can set the KORG SOS to keep all of the undone recordings. Move all of your recorded tracks”even undone tracks”to a computer-based DAW system, and then choose the best take. Note: The unlimited undo/redo is limited by the capacity of the installed microSD/SDHC card.

Loop recording
The KORG SOS recorder's A/B Loop function can repeatedly play back a specified section of the songs”a great way to practice your instrument or build up your song. In addition, you can even record while looping, creating results similar to a looper effect.

Sound Stretch
This powerful feature changes the playback speed without affecting the pitch. Sound Stretch can be used during playback or during recording. You can record a difficult passage at a slow speed and then return playback to normal speed. Likewise, you can slow down the entire sound during playback. Set the playback speed anywhere from 25% to 150% of the original speed.

100 powerful KORG effects
Powered by KORG's proprietary REMS modeling technology, the SOS recorder provides 100 effect choices, including effects for electric guitar (such as amp modeling), acoustic guitar, vocals, or any instrument. The effect can be applied as you record, or added to a previously recorded track. In the Master position, the effect can be applied to the entire song. Effects are divided into Guitar, Mic, Master, and Touch. This last category controls effects in real time, using the KORG SOS recorder's touchscreen display.

¢[GTR]: 36 types of KORG modeled guitar & bass effects
¢[MIC]: 25 effects designed for acoustic sources using a microphone - vocals, acoustic guitar, etc.
¢[MST]: 32 Master Effects, suitable for adding to a recorded song, or when recording a line input source (such as an external MP3 player)
¢[TCH]: 7 Touch Effects, controllable in real-time using the display

On-board rhythms
The SOS recorder's rhythm function is convenient when recording your phrases and ideas. It can be used as a tempo guide or to create a rhythm backing. Fifty rhythms (each with four variations) cover a broad range of styles. Simply choose a pattern and set the tempo. The touch screen allows you to select one of four variations to change the complexity of the pattern

KORG tuner technology
Now you can always be in tune when you record. Guitar, Bass, and Chromatic digital tuners are built in to the KORG Sound on Sound. The calibration range is adjustable from 435Hz to 445Hz.

High-quality stereo mic / Internal monitor speaker
A high-quality stereo condenser mic is securely mounted inside the KORG Sound on Sound, providing a broad frequency response that realistically captures the sound of acoustic instruments. You can adjust the Tone, Low Cut, and Noise Gate settings of the input sound. The input level can be set manually or automatically. An external microphone jack is also provided. The dedicated guitar input lets you connect your guitar directly to the SOS. A line input for an external audio device is also provided. The monitor speaker lets you review your recording on the spot, without requiring any additional equipment.

Easy-to-use modern design
KORG Sound on Sound features a wedge shaped design that's easy to use whether held in your hand or placed on a desk. All the buttons are laid out on the top surface for intuitive operation. The innovative display provides a clear indication of the KORG Sound on Sound's current functions and settings. The touchscreen display allows realtime access to song playback position, level adjustment, effect parameters, and rhythm patterns simply by touching your fingertip directly to the screen.

Battery powered portability
KORG Sound on Sound can operate for up to ten hours using two AA alkaline batteries. It can also be used with an AC adapter (sold separately).

KORG AUDIO UTILITY downloadable software
The KORG Audio Utility format conversion and audio CD creation software can be downloaded for free from Korg, and used free of charge. This software provides convenient data management of your recorded songs. With it, you can perform simple editing of the audio data, convert between audio formats, and even create audio CDs.


Multitrack recorder provides on-board rhythms, effects, and an infinite number of overdubs for truly creative recordings
Pocket-sized, portable, and battery powered
With the built-in speaker and an internal high-quality stereo mic, you can capture and review your recordings instantly, without the need for any additional equipment
Advanced recording features include unlimited undo/redo, loop recording, and Sound Stretch - adjust the playback speed without changing the pitch
100 on-board effects”powered by Korg's proprietary REMS technology”to enhance your recordings using a wide range of instruments
Record along to 50 preset rhythm patterns, covering a broad variety of styles
Record and save up to 200 songs in WAV format
High-performance guitar, bass, and chromatic tuners are built in
Records up to ten hours on a pair of AA batteries
Wedge-shaped design is easy to use as a hand-held recorder or on a desktop
Korg Audio Utility software provides format conversion and audio CD creation. (Downloadable free from Korg)

AA alkaline batteries x 2 (for checking recorder operation)
Recording format: PCM audio format, WAV format (extension: .wav), BWF compliant, 44.1 kHz@16-bit
Available recording time: Memory card dependent - up to 26.6 hours with a 16 GB card; Approx. 100 minutes per 1GB
Maximum continuous recording time: 6 hours
Total number of songs: Up to 200 songs (as recognized by the recorder)
Maximum number of Overdubs: Dependent on memory card space
Undo/Redo: 1X, 10X, Unlimited (Dependent on memory card space)
Tempo: 30-240 BPM
Number of Rhythms: 50
Counter Modes: Hours/Min/Sec, Measure/Beat/Quarter-Beat

Number of Effects: 100
Categories: Guitar (36), Mic (25), Master (30), Touchscreen effects (9)

Tuning Modes: Chromatic; Guitar; Bass
Scale: 12-note equal temperament
Calibration range: 435Hz445Hz

Supported Memory cards: microSD card (512MB-2GB), microSDHC card (4GB-16GB)

Display: Touchscreen LCD with backlight
Power supply: AA/LR6 alkaline battery x2, AA nickel-metal hydride battery x2, Optional AC adapter (DC4.5V)

Impedance: 8 Ohms
Maximum output: 0.4W

Frequency response:

2.72" (W) x 5.31" (H) x 1.3" (D), 4.94 oz. (including memory card and batteries)

Input connectors
GUITAR IN: Connector 1/4" phone jack (balanced), Input impedance 470k Ohms, Nominal level -6[dBv]
LINE IN: Connector 1/8" stereo mini jack, Input impedance 14k Ohms, Nominal level -6[dBv]
MIC: Connector 1/8" stereo mini jack (switchable to Plug-In-Power), Input impedance 15k Ohms, Nominal level
MIC GAIN: LOW/MID/HIGH (-22[dBv]/-30[dBv]/-38[dBv])

Output connector
HEADPHONES: Connector 1/8" stereo mini jack, Maximum level 25mW + 25mW @16 Ohms

Korg Audio Utility Software
Windows Vista (Service Pack 2 or later), Windows XP Home Edition/Professional Edition (ServicePack 3 or later),
CPU: Intel Pentium III 1 GHz or faster, Memory: 256MB or larger (512MB or larger recommended)

Mac OS X 10.4.11 or later (Intel-based Mac supported), CPU Apple G4 800 MHz or faster (Intel-based Mac supported), Memory: 256MB or larger (512MB or larger recommended)
Pro Coverage
Manufacturer's Warranty
USA Warranty Policy

All Korg products purchased from a Korg USA authorized dealer are warranted to be free from defects in material and workmanship to the original consumer purchaser as listed below:

Labor: 1 Year
Parts: 1 Year

Exceptions: Tubes, AC Adapters, Foot Switches: 90 days

Warranty Requirements and Limitations:

-Proof of Warranty - The customer must provide proof of purchase in order to obtain warranty service. The dated sales slip or copy thereof is the only acceptable proof of purchase.

-The product must be purchased from a Korg USA authorized dealer and have a valid serial number.

Damage resulting from the following causes are excluded from the warranty set forth above:
-Misuse, including damage occurring during shipment, damage caused by battery leakage, accident, fire, unauthorized repairs, tampering, cosmetic damage or other types of damage which are the result of improper handling or abuse.
-The cleaning of controls or contacts due to exposure to dirty, dusty, or otherwise contaminated environment.
-Damage resulting from modification.
-Damage to units used for loan or rental.

Register online and extend your warranty!
Register your new Korg keyboard, keyboard rack module or digital piano online and receive a certificate that extends the product warranty for an extra year from the date of purchase.

Customer Reviews
Questions & Answers View All

Review Snapshot

by PowerReviews

(based on 5 reviews)

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Reviewed by 5 customers

Displaying reviews 1-5

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(74 of 77 customers found this review helpful)


Bang Out Ideas Quickly

By John T

from Pelham, NH

Great little recorder to bang out ideas fast. Lets you keep separate tracks to reuse later. You can put some pretty fancy demos together without worrying about the complexities of a PC DAW. I really liked the bars & beats mode because I could set the tempo and use tempo-synced effects. Of course you have to be good with your timing and play everything in by hand. I was able to jam out a song idea and then import it into Ableton for tweaking. This is the only tiny recorder that I know of that will let you work with bars, beats and loop sections as you would on a big, fancy multi-track or DAW. Cons: we need more time signatures. Currently only does 3/4, 4/4, and 6/8. Also need some rudimentary editing such as delete measure and copy measure. The headphone output was strong enough to drive my phones pretty loud. The button layout can be easily memorized. Pretty good for the price.

(11 of 15 customers found this review helpful)


Not so great

By BCY123

from NY NY

Got one of these...and i had hoped it would be useful and easy to use, at least easier and less hassle than the DAW i use now...but it has no real advantage to just using a DAW. still need headphones and wires, mics on occassion, etc., the screen is hard to read= very blocky letters and numbers, programming is ok, but not that intuitive, sound quality is fair, the speaker is simply not loud enough, i could go on, but I find i am back at my computer using cubase like always....I find no real advantage to learning how to use this unit. i suppose if you have nothing it will do the trick, but if you already have a setup, this is not going to move you very far forward....Just check out the video on the korg site, you can see that these guys end up at the computer anyway. Besides, the files all save to the microchip and there is no USB port!!! yikes what an ommission!! so you need to spring for a card reader...all in all a bit of a hassle, especially if you are up and running with other apps.

(6 of 6 customers found this review helpful)


Great for what it does.....

By SmokingJoe

from Huntsville Al

I can hardly wait for the next model or the model after that. But Korg is definitely barking up the right tree. Make no mistake, I don't regret my decision in the least. I am glad I got it. What it does do it does amazingly well. The clean guitar effects are excellent. The distorted ones are good enough to get the idea. a couple of them are quite good. But it's not going to come close to a tube screamer in front of a good tube amp with the gain cranked, but then again I have yet to see any of the hight guitar effects pedals do much better. I also have the Pandora PX5D and I much much prefer the SR1 over it. The PX5D let you tweak each effect to your hearts content but at the end of the day I always find the distortion lacking compared to a real rig. The SR1 has very very limited tweaking of the tones. You can mix between the wet and dry signal, control the lenght of the delays and that's about it. Still even with the limited tweaking some excellent tones are available among the many usless ones. One thing I really like about the PX5D is it lets you pick 4 tones and assign them to 4 buttons on the front of the unit for instant switching between them. On the SR1 you have to scroll from tone to tone which might be 20 tones away. No way to delete the usless tones or copy or move them so your favorite are closer together. You can record any sound source into it and it sounds as good as the original. Killer for learning tunes or riffs. But what it does and does exceedingly well is record electric guitar. as many tracks as you like with no degradation in sound. It kills at this. I have not tried it yet but I am certain you can put a pod in front of it and record and not be able to tell the difference btween the live sound and play back. The internal speaker sucks majorly, but hook it up to even a cheap logitech computer speakers with a sub and prepare to be impress and it sounds killer hooked up to some powered monitors. all in all very easy to operate and a blast to play with. Does it do anything you can't do with a laptop and ableton and a preamp to interface with it, NO but it ways less than four ounces, runs on two double A;s for hours and hours. I sit on the couch with it will my family watches TV and rock out! I LOVE LOVE LOVE it.

(4 of 5 customers found this review helpful)


Great for what I need it for

By mike

from mound, mn

I have never recorded anything before i purchased this. After just a few moments I had the basics figured out and was recording guitar over a drum beat. This little recorder is pretty straight forward and easy to use, the sound is pretty good and is perfect for recording quick and get ideas down. I like having a portable device that i can sit on the couch and plug the guitar in and figure a song out in the middle of the night. The only thing that would make this better is if it had a USB port built in and could be used as a audio interface. This unit sounds good, the built in effects are pretty good, the drum beats are fine and having a built in metronome is great. This is easy to use and I have already recommended it to friends.

(1 of 1 customers found this review helpful)


Cool but Korg misleads its useability

By M G

from Los Angeles, CA

Obviously, you are not going to record high quality audio with this thing, but you should expect that from a device at this price range. I accept that, and think this is a interesting and fun device. However, the instructions expressly state that you do not need headphones for this device which is FALSE. Once you record one track and then attempt to overdub with the internal microphone, you will NOT be able hear what you originally recorded without headphones. I do not mean that the volume coming out of the internal speaker is low when overdubbing. I mean the internal speaker will NOT output anything. So, if you think you can record into this device and overdub vocal or acoustic instrument parts using the internal microphone and without headphones, you are mistaken, although Korg clearly states that this is possible. I called Korg technical support and they confirmed that headphones are required when overdubbing using the internal microphone. Korg should do the right thing and explain that headphones are REQUIRED.

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