Are you restricted to tuning 440 hz? If not what other things are available?

The PolyTune 3 supports alternate tuning as well as changing the reference pitch. You can select the following alternate tuning modes: - Standard Tuning - All strings tuned down 1 semitone - All strings tuned down 2 semitones - All strings tuned down 3 semitones - All strings tuned down 4 semitones - All strings tuned down 5 semitones - 1 Capo at first fret - 2 Capo at second fret - 3 Capo at third fret - 4 Capo at fourth fret - 5 Capo at fifth fret - 6 Capo at sixth fret - 7 Capo at seventh fret Reference pitch starts at 440 hz and is adjustable +/- in 1 hz increments

Does it hold a battery? What type of battery does it use?

The Polytune 3 can be powered by a standard pedalboard power supply (Voodoo Lab, Cioks, Strymon, MXR, etc.) or it can also be powered by a standard 9V Battery. Brian Meader Sales Manager The Guitar Sanctuary

Does the true buffer works also for active bass with on board preamp?

The onboard buffer works regardless of the instrument plugged in to the tuner. With a bass with onboard active electronics you don't need a buffer, but it won't hurt anything to have it in line.

Can this tune 10 notes lower than standard bass tuning? I need it to hit a low F#. 5 notes below a B.

Low B is the lowest I’ve gone and it works great.

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tc electronic Polytune 3 Ultra Compact Polyphonic Tuner

tc electronic Polytune 3 Ultra Compact Polyphonic Tuner

Product ID: 48145464

Details

Brand
TC Electronic
Colour
MultiColored
Item weight
0.27 Kilograms
Product dimensions
12.1L x 4.5W x
Style
POLYTUNE 3

⚡0.5 cent tuning accuracy

🎸Polyphonic tuning all strings at once

💡Bright LED display for clear visibility

Description

🎶 Tune smarter, play louder—never miss a beat with Polytune 3 Ultra Compact!

TUNE IN A FLASH ⚡ - Lightning-fast chromatic tuner with ultra-precise 0.5 cent accuracy keeps your sound razor sharp.
PEDALBOARD PERFECT 💡 - Ultra-compact design with a bright, easy-to-read LED display that stands out even in dim gigs.
ALL STRINGS ONE GO 🎸 - Polyphonic mode lets you tune every string simultaneously—cut your setup time and get back to playing.
ALWAYS READY ALWAYS ON ⏱️ - ‘Always On’ tuning mode means no interruptions—stay in tune without missing a beat.
TRUE BYPASS OR BUFFER YOUR CALL 🔄 - Switch seamlessly between true bypass and high-quality BonaFide buffer modes to preserve your tone.

The TC Electronic Polytune 3 Ultra Compact is a professional-grade polyphonic and chromatic pedal tuner featuring lightning-fast 0.5 cent accuracy, a bright LED display visible from over 6 feet, and versatile true bypass or buffer modes. Designed for pedalboards, it offers simultaneous multi-string tuning and an 'Always On' mode, ensuring distortion-free, precise tuning for serious musicians who demand flawless sound on stage or in the studio.

Specifications

ASIN	B06Y4G7NQD
Amperage	0.05 Milliamps
Audio Output Effects	Multi-Effect
Best Sellers Rank	5,826 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 107 in Tuners
Brand Name	TC Electronic
Colour	MultiColored
Connector Type	1/4 inch audio jack
Controls Type	Push Button
Customer Reviews	4.7 4.7 out of 5 stars (3,060)
Global Trade Identification Number	05706622022202
Hardware Interface	1/4-inch Audio
Included Components	Tuner Pedal Unit, Power Supply, User Manual, Carrying Case
Item Dimensions	12.1 x 4.5 x 7.3 centimetres
Item Dimensions L x W x H	12.1L x 4.5W x 7.3H centimetres
Item Type Name	Ultra Compact Polyphonic Tuner
Item Weight	0.27 Kilograms
Manufacturer	Music Group
Manufacturer Part Number	P0CM0
Model Name	PolyTune 3
Model Number	POLYTUNE3
Power Source	Corded Electric
Product Warranty	3 year manufacturer.
Set Name	POLYTUNE 3
Signal Format	Analog
Style	POLYTUNE 3
UPC	653341327130
Unit Count	1.0 count
Voltage	9

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