USB Electric Guitar

Adjustable reference pitch from 438 to 445Hz. Acts a power supply for other pedals when used with the optional PSA-120 and daisy chain.

The Boss TU2 Chromatic Tuner incorporates Boss’s world-renowned TU-Series tuner technology into an ultra-convenient stompbox design. For the first time ever, guitarists and bassists can now tune their instruments with Boss accuracy with just a single stomp. No extra cables, no searching for your tuner — it’s right beneath your feet, ready for a tune up! More Info!

Features:
13 LCD lights helping you get your guitar in tune to +/-3 cent.
The bypass jack lets you tune your guitar so people can hear you, or just plug it into the output jack to tune in silence.
Not only can you put in battery, put a ac/dc power supply can also be used to power the TU-2.
Chromatic tuning.
Guitar, Guitar flat, Guitar double flat tuning.
Bass, Bass flat, Bass flat tuning.
It also has a streaming or central LCD tuning mode which basically means you can have the LCD lights move round and round kind of in a streaming way or the can stay still and move with the tune.
More features!

Quality:
it is built like a tank, as are all other BOSS pedals. It is nice to use this as a mute switch to change guitars as well. It tunes very accurately, and the lights are easy to see. You can use it like a normal tuner, but if you’re more accustomed to a strobe tuner, it does it well, too. It also has a power output, so you can buy a daisy chain and power some more 9V stomp boxes or whatever. It is however a bit pricey; The probably wouldn’t spend this much money on it-a good friend gave me this one because he got another one and didn’t need two. But if you have the money, DEFINITELY go for it! You won’t be disappointed!
Sounds:

What can you say about the “Sound” of a guitar tuner, when it is on, you can have it mute your signal so you can tune quietly or you can bypass it so you can hear it. But they were unable to hear any change in tone whatsoever with it off. They use mine on a pedal board, early in the effects chain. Remember to always use your bridge pickup and turn your tone all the way down when you use an electronic tuner. Tuners are able to lock on to the much more stable signal when it hears low. Highs can confuse them and make them appear erratic.

Ease of Use:
It’s easy to use and easy to understand. Only spent five minutes with the manual and I was in the correct mode and ready to go.

Plug your guitar into the input socket and plug a cable from the output socket to your amp. However, that is if you want to tune your guitar silently. If you still want the signal to go through, plug the cable into the bypass socket then to the amp. If you didn’t understand that, don’t worry, it should come with a manual.

Value:
It’s just a little pricey. If it were in the $70 range, it would be prefect. Check latest price!

Desirability:
It’s built very well. It won’t let you down for quite a while. It’s a very handy thing to use on stage. It does the job it’s meant to and it doesn’t chew through the batteries (if you unplug it when not in use).
Overall:

The guitar can play pretty much everything, including drop tunings. This tuner there gets me there in a second.

Technical Info:
Standard Pitch: 438 to 445 Hz (in 1Hz step)
Tuning Range: A0 (27.50 Hz) to C7 (2093 Hz)
Pitch Accuracy: +/- 3 cent
Input Impedance: 1 M
Output Load Impedance: 10 k or greater
Controls: Mode Select Button, Cent/Stream Select Button, Turner On/Off Pedal Switch
Indicators: Meter (11-point LED: Red x 10, Red/Green x 1), Tuning Upgrade (Red LED x 2), # (Red LED x 1), Check (Red LED x 1), Note/String Number/Mode/Pitch (7-segment LED)
Connectors: Input, Output, Bypass, DC In
Power Supply: DC9V S-006P/6F22 Battery, AC Adapter
Dimensions (W x H x D): 70 x 55 x 125mm (2-3/4 x 2-3/16 x 4-15/16 in.)

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8-octave range. Dual display. Multiple temperaments. Soft case included.

Tune string and wind instruments in a flash with the OT-120, a new tuner that combines the accuracy of needle-type meters with superior functionality, wide tuning range and a new, sleek vertical design. More Info!

Features:
Chromatic tuner with a wide 8-octave detection range that supports band and orchestra instruments
Dual display provides both a needle-type meter and an LCD for excellent visibility
Sound Back (Patented: Patent pending) mode plays a reference pitch for the note that’s closest to the input pitch. The meter indicates the discrepancy between the input and the correct pitch
Multiple Temperaments support historical tunings
Transpose mode is convenient for wind instruments
Choose from 3 levels of needle response speed (slow, medium and fast)
Both auto and manual tuning modes are provided
Built-in reference tone plays in a 5-octave range
Broad range of calibration (349 Hz–499 Hz)
Built-in mic supports acoustic instruments
Use with the optional CM-100 Contact Mic for accurate tuning in noisy environments
Energy-saving design for long battery life (approximately 100 hours)
Durable soft case included
More Features!

Sound:
The OT-120 produces a reference tone in a 5-octave range extending from C2 (65.41 Hz) to C7 (2093 Hz). You can switch the output level in 2 stages. The large speaker allows for more volume while not being obstructed even when using the stand, ensuring that the reference tone is clearly audible.

The OT-120 also provides Korg’s proprietary Sound Back mode. This mode lets you connect an optional CM-100 contact mic to the input jack, and automatically make the OT-120’s speaker produce a reference tone for the note that is closest to the input pitch you play on your instrument. The meter will also indicate the input pitch, letting you tune using your eyes as well as your ears for greater accuracy — and also providing a great way to train your sense of pitch.

Vertical-Design and Superior Visibility
The OT-120 chromatic tuner is intended for orchestral instruments, packing precise performance and sophisticated functionality in a vertical design that’s easy to hold and operate. It features a dual-display, an easy-to-see needle-type indicator and a backlit LCD screen that shows the battery life, sound output level, calibration, key and note name. Additional design features include a large dial that makes it easy to select the desired mode, soft-touch buttons and a rear-mounted stand that lets the unit stand by itself. A sophisticated silver aluminum panel contributes to its sleek, new look.

Accurately Tune Orchestral Instruments Over a Wide Range
Since Korg developed the world’s first meter-type tuner in 1975, the accuracy of Korg tuners has made them the choice of artists in all styles of music. With its wide tuning range extending from A0 to C8, the OT-120 lets you quickly tune any type of band instrument including, orchestra, wind, string, brass or piano. The OT-120 also provides a wide range of calibration to support concert pitches in a range of A440=349-499 Hz (1 Hz steps).

Smooth and Precise Tuning You Expect from a Needle-Type Meter
The OT-120 uses a high-precision needle-type meter to accurately indicate any pitch discrepancy. The speed at which the needle responds to the input can be changed over a range of 3 steps; you can choose fast, medium or slow to match your tuning preference.

You can also choose from 2 tuning modes; Auto mode, which automatically detects the pitch of a single note you play on your instrument, or Manual mode, which lets you specify the desired note name. In Manual mode the needle movement is shown in a range of +/- 50 cents, letting you view the tuning discrepancy over a wide range. In addition to the excellent visibility unique to a needle-type meter, the LEDs located below the meter also indicate pitch deviation or a perfect match, making precise tuning easy even in dim locations.

Support for Transposing Instruments and Historical Temperaments
For conveniently tuning any wind instrument, 12 types of transposing keys are provided including both sharps and flats. The Multi Temperament function provides 8 presets that cover the most popular historical temperaments often used with period instruments. These are also ideal for checking unique temperaments used in classical music.

Long Battery Life
The OT-120 is designed for an extended battery life of approximately 100 hours when running on two AAA batteries. It can also be used with an AC adaptor (sold separately).

Soft Case Included
A durable, suede-tone soft case is included.

Technical Info:
Scale: 12 equal tempered, Pythagorean, Werckmeister III, Vallotti, Mean Tone Eb, Kirnberger III, Young, Mean Tone D#, Kellner
Transpose Range: C, C#, D, Eb, E, F, F#, G, G#, A, Bb, B
Detection Range: A0 (27.50 Hz) – C8 (4186 Hz)
Reference Tone: C2 (65.41 Hz) – C7 (2093 Hz), 5-octave, 2-step volume control
Tuning Modes: AUTO (SLOW, MEDIUM, FAST), MANUAL, SOUND BACK
Calibration: A4 = 349 – 499 Hz (1 Hz steps)
Detection Accuracy: +/- 1 cent
Sound Accuracy: +/- 1.5 cent

Connections: INPUT (1/4 in. jack), OUTPUT (1/4 in. jack), DC IN (9 V)
Power Supply: 2 AAA batteries, or AC adapter (sold separately)
Battery Life: approx. 100 hours (with alkaline batteries, in meter mode (MEDIUM), continuous A4 tone, without backlit)
Dimensions: 2.91 in. (W) x 4.71 in. (D) x 1.42 in. (H) / 74 (W) x 120 (D) x 36 (H) mm
Weight: 6.81 oz. (including batteries) / 193 g (including batteries)
Accessories: 2 alkaline AAA batteries for checking operation, a suede-tone soft case
Options: AC adapter, CM-100 Contact Microphone

*Even if a sound is within the detectable pitch range, detection may be difficult for instruments that have a large number of overtones or that decay rapidly.
Specifications subject to change without notice

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