NUX NTU-3 Flow Mini Pedal Tuner User Manual
- June 9, 2024
- NUX
Table of Contents
NTU-3
FLOW
TUNE
User Manual
NTU-3 Flow Mini Pedal Tuner
Copyright
Copyright 2021 Cherub Technology Co. All rights reserved. NUX and Flow Tune
are trademarks of Cherub Technology Co. Other product names modeled in this
product are trademarks of their respective companies that do not endorse and
are not associated or affiliated with Cherub Technology Co.
Accuracy
Whilst every effort has been made to ensure the accuracy and content of this
manual, Cherub Technology Co. makes no representations or warranties regarding
the contents.
WARNING!-IMPORTANT SAFETY INSTRUCTIONS BEFORE CONNECTING, READ
INSTRUCTIONS
WARNING: To reduce the risk of fire or electric shock, do not expose this
appliance to rain or moisture.
CAUTION: To reduce the risk of fire or electric shock, do not remove
screws. No user-serviceable parts inside. Refer servicing to qualified service
personnel.
CAUTION: This equipment has been tested and found to comply with the
limits for a Class B digital device pursuant to Part 15 of FCC Rules.
Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
The lightning symbol within a triangle means “electrical caution!” It
indicates the presence of information about operating voltage and potential
risks of electrical shock.
The exclamation point within a triangle means “caution!” Please read the
information next to all caution signs.
- Use only the supplied power supply or power cord. If you are not sure of the type of power available, consult your dealer or local power company.
- Do not place near heat sources, such as radiators, heat registers, or appliances which produce heat.
- Guard against objects or liquids entering the enclosure.
- Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage points or other risks. Refer all servicing to qualified service personnel.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as when the power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped.
- The power supply cord should be unplugged when the unit is to be unused for long periods of time.
- Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and at the point where they exit from the apparatus.
- Prolonged listening at high volume levels may cause irreparable hearing loss and/or damage. Always be sure to practice “safe listening”.
Follow all instructions and heed all warnings
KEEP THESE INSTRUCTIONS!
Mini Pedal Tuner
NUX Flow Tune (NTU-3) is a compact pedal tuner with advanced functionality. It offers 3 tuning modes (Chromatic/Guitar/Bass), high-definition LCD display with 3 display options, A4 calibration, and you can easily toggle between True Bypass, Buffered Bypass and an innovative Buffered Bypass Monitor mode that keeps the output signal always unmuted.
Product interface
Features
- True Bypass / Buffered Bypass / Buffered Bypass Monitor modes
- A4 calibration (430Hz — 450Hz)
- High-definition LCD display
- 3 display modes
Operation
Power Input
9V DC Negative Tip (Optional NUX ACD-006A Power Supply).
Audio Input
Connect your instrument to the INPUT jack.
A udio Output
Connect the OUTPUT jack to the next device in chain.
Footswitch
Activate/deactivate the tuner pedal.
DISPLAY Button
Short press the DISPLAY button to switch between 3 Display Modes (a Strobe
mode and 2 Arrow modes). Long press the DISPLAY button to restore the Factory
Settings.
MODE/A4 Button
Short press the MODE/A4 button to switch between 3 Tuning Modes (Chromatic,
Guitar, and Bass). Long press the MODE/A4 button to change the A4 Reference
Pitch (430Hz-450Hz).
TB-BF-BFM Toggle Switch
Switch between True Bypass, Buffered Bypass, and Buffered Bypass Monitor
modes.
Display Modes
NUX Flow Tune offers 3 display modes; a Strobe Mode and 2 Arrow Modes. Short
press the DISPLAY button to switch among these modes:
Display Mode 1 – Strobe (Default)
Display Mode 2 – Arrow
Display Mode 3 – Arrow
Tuning Modes
Short press the MODE/A4 button to switch between the 3 tuning modes:
- Chromatic Mode: Default
- Guitar Mode: Indicated by a highlighted letter “G”
- Bass Mode: Indicated by a highlighted letter “B”
Changing the Reference Pitch
You can calibrate the A4 reference pitch to a value from 430Hz to 450Hz. Follow these steps to change the reference pitch:
- Long press the MODE/A4 button.
- When the display blinks, short press the MODE/A4 button to change the reference pitch in 1 Hz steps. (e.g. the display shows “40” for 440Hz, “32” for 432Hz, etc.)
- To confirm the currently displayed reference pitch, long press the MODE/A4 button again, or simply do not press any button for 4 seconds.
Bypass Modes
NUX Flow Tune lets you easily select True Bypass, Buffered Bypass, or Buffered
Bypass Monitor modes, using the TB-BF-BFM toggle switch:
TB (True Bypass) When the tuner is bypassed, the pedal is a True Bypass
circuit that has no influence on your output signal. When the tuner is
activated and starts tuning, the output will be muted.
BF (Buffered Bypass)
When the tuner is bypassed, the output signal is driven by a Buffered
Bypass circuit. When the tuner is activated and starts tuning, the output will
be muted.
BFM (Buffered Bypass Monitor)
The signal is driven exactly as in the Buffered Bypass mode, while the output
remains unmuted no matter the tuner is activated or deactivated.
Factory Reset
You can restore the factory settings by long pressing the DISPLAY button for 5 seconds.
Tune Your Instrument
We recommend you tune your guitar every time you pick it up. Guitars tend to
go out of tune quickly. Make sure your guitar is in tune when you begin to
play it. Here is a quick guide for Standard E tuning for Guitar and Bass
Guitar. Follow this tuning pattern and tune your guitar accurately with the
NUX Flow Tune.
Specifications
- Tuning range: AO (27.5Hz) – C8 (4186Hz)
- Tuning mode: Chromatic, Guitar, Bass
- Tuning accuracy: ±0.1 Cent
- Input impedance: 10M0
- Output impedance: 11(f)
- Current draw: <100mA
- Dimensions: 97.4mm(L) x 43.5mm(W) x 41.6mm(H)
- Weight: 197.4g
THE FCC REGULATION WARNING (for U.S.A.)
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more
of the following measures:
-
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver. -
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-
Consult the dealer or an experienced radio/TV technician for help.
©Cherub Technology Co., Ltd.
All Rights Reserved. No part of this publication may be reproduced, stored in
a retrieval system, or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the prior written
permission of Cherub Technology Co., Ltd.
www.cherubtechnology.com
Made in China
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