How do I read a strobe display?

Basically, the strobe image appears to travel to the left if your instrument is flat of the desired pitch and to the right if it is sharp. On earlier models such as the StroboStomp 1, StroboStomp 2, VS-1, VS-II and V-SAM, the strobe image travels upward if your instrument is sharp and downward if your instrument is flat of the desired pitch.

Adjust your instrument until the pattern is as close to still as possible. Strobe displays are 'real-time' and extremely high definition. They require very precise tuning adjustments to stop the display because the frequency/pitch of any instrument is never totally stable.

You'll quickly learn to read the display, make the most precise adjustments and appreciate the high resolution that only a Peterson provides.

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What is my ’s Sweetened Tunings feature all about?

A Sweetener is a set of cent offsets or a deviation from generic Equal Temperament interval spacing traditionally used in tuning. Tuners made by Peterson, including the , contain many choices of “Sweetness“, in other words, several presets with differing interval spacing relevant to the instrument being tuned. If you’ve never been happy with how your instrument tunes up with your present tuner, a Sweetener could be just the thing to change that without any modifications whatsoever. The offers unique and very accurate “tweaks” which often make all the difference, try it!

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Is the accuracy the same for all Peterson tuners?

Yes, the accuracy is within 0.1 cents (1/1000 of one semitone) as with all Peterson Strobe Tuners. An important thing to note is that Peterson Strobe Tuners have ultra high definition displays, so not only are they highly accurate in detecting a note but they have the ability to display that accuracy. Other products claim accuracy but do not have the high definition screen to display the level of accuracy in which they claim. If you cannot see the accuracy, it is of little value. Only Peterson provides High Definition Strobe Tuning.

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Is there a carrying case available?

We have carrying cases available that are very useful if you will be frequently traveling with your Peterson tuner. You may purchase your case directly from us at Peterson. Cases are available for the AutoStrobe™ line and the StroboClip HD. The StroboPLUS HD comes with packaging that has been designed to protect your tuner.

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Which Peterson products work with Peterson Connect?

Currently, the StroboPLUS HD, StroboClip HD and the Stomp Classic Pedal Tuner / Active DI are compatible with Peterson Connect.

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Does my tuner require calibration?

Generally, your tuner will not require calibration and should remain perfectly accurate if it has not been damaged.

Unlike more modern Peterson strobes, legacy models such as the Peterson 400, 420, 450 and 700 do require occasional calibration.

If you require service, please open a support ticket and return the tuner for repair.

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What features of my Stomp Classic can I configure with Peterson Connect?

  • Configure the order and number of sweetened tunings in your device's available tuning list.
  • Design up to 10 custom presets using the tunings from your sweetened tunings list.
  • Create your own sweetened tunings with custom offsets and note names.

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I often tune my acoustic instrument in a loud environment. What's available to help with that?

When tuning an acoustic instrument in an environment where you cannot control the background noise, like at a gig or loud band hall, a vibration pickup is a very nice alternative to using the built-in microphone.

For instruments with a flat resonating surface, you can use a suction cup tuning pickup to reduce ambient noise interference.

A Peterson TP-3 clip-on tuning pickup is a very versatile device that can be clipped onto any portion of the instrument that vibrates, such as the headstock of a guitar or the bell or lead pipe of a horn.

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How accurate is my ?

Your is accurate to 0.1 cent (1/1000th of a semitone). It’s important to note, that unlike other tuners which list the detection accuracy as the main specification, the detection AND display accuracy is 0.1 cent due to its high definition display which is the highest of any tuner on the market.

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Will the old desktop version of Peterson Connect still work?

Yes, the legacy desktop Peterson Connect app will still communicate with our servers to search for new firmware and configuration information for your device. This is a convenience for early adopters of the technology and will be minimally supported and no longer distributed.

WARNING: Running the standalone desktop app and the Chrome add-on concurrently can cause USB driver conflicts and result in corrupted data. Uninstall or disable the Peterson Connect Chrome add-on before opening the older standalone desktop application.

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My LCD screen is going dim.

The LCD screen of your Virtual Strobe Tuner may go dim for a short time right before the battery runs out. Although the batteries may not be old, check to see if replacing them corrects the LCD brightness.

Powering the unit with the provided or suggested power supply can also help determine if the LCD screen is in fact failing. If the LCD is still dim after changing the batteries or plugging the unit directly into a wall outlet, please open a help ticket so we may assist you further.

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What power supplies can be used with my Peterson Pedal Tuner? ( StroboStomp 1 & 2, Stomp Classic )

9VDC - Regulated - Center negative - At least 85mA Suitable regulated power supplies would be:
  • Voodoo Lab Pedal Power 2 (Eight isolated 9VDC 100mA regulated outputs)
  • Dunlop DCB-10 DC Brick (10 outputs)
  • Visual Sound 1-Spot (9V fully regulated output)
  • Carl Martin Big John 9v Power Supply (Seven 9VDC outputs 600mA total)
  • Sanyo Pedal Juice
  • T-Rex Fuel Tank
  • Godlyke PA9 Power All (9V 800mA regulated output)
  • Boss PSA120 adapter (9V 200mA regulated)
DO NOT use the Boss ACA120 Unregulated power supply! Boss ACA, Danelectro DA1, RadioShack, etc., do not have a voltage regulator and are not suitable. As always with any pedal, be careful - check voltage (9V or 12VDC regulated) & polarity (positive barrel-negative inner sleeve) first and don't overload the power supply's ampere rating by daisy chaining too many pedals from a single supply.

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Is the Stomp Classic firmware updateable?

Yes, the Stomp Classic can be updated via its USB socket on the left hand side of the tuner. Plug your Stomp Classic into your computer, go to Peterson Connect and check for firmware updates.

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What do the switches on the rear side/north face of the Stomp Classic do?

There are two three-position switches and one two-position switch on the rear. The switch on the left has to do with operational modes and enables the following:

1. MON: Monitor operation only. The tuner is on and displays state of pitch at all times, whether muted or un-muted.

2. TB: True Bypass operation only. Tuner is active and connected to the signal path only when muted, otherwise it is electrically off and physically out of the signal path.

3. DI: DI mode. Tuner is active and its display visible only when muted, DI is active at all times but also mute-able.

The switch on the right controls the signal level before it enters the DI circuit to ensure a clean output with lots of headroom and enables the following:

1. 0dB: DI output setting suitable for passive acoustic and bass guitar signals.

2. -10dB: DI output setting suitable for active acoustic and bass guitar signal.

3. -20dB: DI output setting suitable for active acoustic and bass guitar signals.

The switch in the lower middle is a ground lift switch and is used to avoid hum caused by ground loops.

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Does the Stomp Classic have a manual tuning mode?

No, the Stomp Classic is a stage tuner and uses auto-note-sensing only.

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The Stomp Classic will not turn on.

Aside from a fresh 9V battery or a 9V power supply, the Stomp Classic is switched on when a 1/4" mono instrument cable is plugged into the input on the right side of the chassis. You will not see any sign of life from the unit without this cable plugged in. A stereo cable will not turn the Classic on.

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How do I calibrate the Stomp Classic to a fixed instrument like an electric piano or keyboard?

The Stomp Classic Concert A control can be adjusted in 1Hz increments, the default value is 440.0

1. Plug the Stomp Classic into the keyboard or piano ¼” output socket.

2. Press the MENU button until “A440” flashes.

3. Play the A above middle C on the piano or keyboard.

4. If the Strobe image moves clockwise, increase the Concert A value on the Stomp Classic by pressing the + (plus) button until the image hovers or stops.

5. If the Strobe image moves counter-clockwise, decrease the Concert A value on the Stomp Classic by pressing the – (minus) button until the image hovers or stops.

6. The Concert A pitch of the piano will be displayed on the screen

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Does Peterson Connect only work with the Google Chrome Browser?

No, but it works better with Google Chrome!

Before June of 2015, Peterson Connect required the download and installation of a separate piece of software in order for your products to communicate with the Peterson website. This software existed for both Mac OS X and Windows. Recently, the Google Chrome browser has offered developers new tools to make tasks like these much easier for the user. Converting Peterson Connect from a stand-alone application to an app for Google Chrome greatly simplifies the Peterson Connect installation and user experience for the majority of our customers.

Those who prefer a different browser can design sweeteners and presets in any browser. Only the data transfer to your tuner relies on Google Chrome ( as opposed to downloading and installing a stand-alone application ). All of the other functions of the Peterson website will work in any browser. However, using Google Chrome to configure your tuner provides a quick and seamless link between programming and transferring data to your device. Chrome acts as the USB Driver for your tuner. - a USB driver that also happens to be a very useful browser in many respects. In the future, as technology allows, this will work with all browsers.

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How do I send my product in for repair?

If you need to send your tuner in for repair, please open a support ticket.

All products returned for service must have a support ticket number on the outside of the box as well as on the accompanying paperwork on the inside of the box. If you have not registered your tuner, you must do so before returning it. Include a description of your problem. Please be specific about the type of malfunction as well as the conditions under which it occurs.

There is a minimum charge of $70.00 US plus a shipping charge for all Peterson tuners received (unless subject to Peterson warranty). Payment options include C.O.D., VISA, MasterCard, and Discover Card.

NOTE: For international (non-USA) repairs and for all Conn tuner repairs, a different procedure may apply. If you would like an advance estimate for service, you must include a request in writing with the tuner you ship.

Contact and Shipping Details:

For service of Peterson tuners:

Peterson Electro-Musical Products, Inc. 11601 South Mayfield Ave. Alsip, IL 60803 USA

TEL: 708-388-3311 (ext. 143) FAX: 708-388-3341

Email: techwest@petersonemp.com

New European Service Depot coming soon

For service of Conn tuners:

Peterson Service 105A East Penn St. Hoopeston, IL 60942

TEL: 217-283-5010 FAX: 217-283-5161

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Can I use the Stomp Classic to set my electric guitar’s intonation?

Yes you can. The guitar can be plugged into the Stomp Classic, the open strings tuned, then checked by fretting each string at the 12th fret. The Stomp Classic will show the tiniest flaw, making your intonation results as good as they possibly can be.

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Is the Stomp Classic really 100% True Bypass?

Yes, when switched to TB on the rear, the Stomp Classic operates in 100% True Bypass. Please note that in this setting, the active DI is non-operational.

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Does the Stomp Classic have a built-in microphone?

No, the Stomp Classic is plug-in only for electric instruments. You can, however, use an external microphone with it to tune instruments which do not have pick-ups. For tuners with built-in microphones, see the StroboPLUS, StroboRack or AutoStrobe tuners.

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How do I tune a half step down with the Stomp Classic?

Press the MENU button until the DROP parameter flashes (default is 0) and then press the – (minus) button to change the value to “-1”.

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Is the Stomp Classic a good tuner for guitar tech/stage work?

Yes, and here’s why. Any professional tech will tell you that it’s important to have the same standard of tuning among all tuners used on stage. On professional stages, where there is a stage backline crew, instrument tuning will invariably be carried out using a Peterson strobe of some sort, it is an industry standard. In the event that a guitarist or bassist requires a tuner on stage, a pedal tuner is usually the preferred format. Unfortunately, the majority of pedal tuners are designed to be less accurate than other formats. So having been strobe tuned offstage, instruments could then be left to the vagaries of inaccurate pedal tuner onstage, were it not for the Stomp Classic which matches the other formats exactly in terms of accuracy and calibration. Added to that, the Stomp Classic’s mute-able active DI allows silent guitar changes by guitarist, bassist or tech without involving channel-muting and the intervention of console personnel. Also, for electric guitar, a second signal can be sent to a different amp or FX chain using the DI output which can also be used for re-amping in the recording studio. With its solid steel enclosure, the Stomp Classic is built for the road and offers more versatility than any other pedal tuner.

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Can the Stomp Classic improve my guitar’s sound?

Yes, the superior tuning accuracy will not only improve your guitar’s sound, using it will help your ear to discern fine differences in pitch.

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What is the function of the metal bracket on the north face of the Stomp Classic?

It’s there to protect the inserted jack plugs from “misplaced onstage foot-fall”. Sort of like a roll-cage to prevent singers and other wandering band members from stomping on your jacks!

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Does the Stomp Classic have an Auto-Off function?

No, the Stomp Classic remains active when switched on until it is muted. According to the user’s wishes, the Stomp Classic can operate in 100% True Bypass in which the tuner is electrically off and physically separated from the signal when muted, or it can operate in Monitor Mode, with the tuner on all of the time, tracking the signal, whether muted or not.

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Tuner appears to come on and go off immediately after plugging in cord.

Are you using a stereo plug (TRS)? Your Peterson Pedal Tuner ( Stomp Classic , StroboStomp 1 & 2 ) uses the input jack to switch the power on and will not work properly if you are using a cord with a stereo plug. For correct operation, use only cables/cords with standard mono 1/4" plugs.

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What does the number beside the note name on the Stomp Classic’s display mean?

The number denotes the octave, the higher the number the higher the octave. A standard guitar tuning is E2 A2 D3 G3 B3 E4. If using a very light gauge set, it is possible to break a string if tuned to too high an octave. For example tuning a guitar’s high E string to E5 instead of E4 will most certainly result in breakage.

In the heat of the moment this can happen on stage unless the tuner has an octave indicator like the Stomp Classic.

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I would like string numbers instead of notes on the tuner display, can the Stomp Classic do that?

Yes, to activate this feature, Press the MENU button until the Sweetener parameter flashes (default is A440) and then press the + or – (plus or minus) button to change the value to “GTn”. The tuner will now substitute EADGBE with 654321.

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How can I attach the Stomp Classic to my pedal-board?

On the base of the Stomp Classic, there are specially designed lugs which can be used to attach the pedal securely to your board. Simply back the screws off slightly and swing the lugs out; you can then screw or bolt the tuner to the board. No tape or Velcro needed.

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What is the warranty period on the Stomp Classic?

3 years parts and labor from date of purchase officially, but due to the quality of our products, we have a very generous case by case policy.

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Is the Stomp Classic display visible in bright daylight?

Yes, due to its high definition LCD display, the Stomp Classic can be read in the full glare of the sun or directly in front of a 1KW stage lighting fixture, well beyond the point where other tuners are rendered useless.

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How is the Stomp Classic constructed?

The tuner enclosure is made from solid steel, with a rugged 3PDT stomp switch and quality Neutrik® XLR and ¼” jack sockets.

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How do I manually update Peterson Connect for Google Chrome?

Google Chrome will automatically update your extensions every couple of hours. However, if you'd like to force an update:

  • Click on the three horizontal lines in the upper right corner of the Chrome browser.
  • Choose More Tools, then Extensions.
  • Check the box for 'Developer Mode'
  • Click the button labeled 'Update Extensions Now'

If this doesn’t work, you can delete the extension from the same page and re-install Peterson Connect for Google Chrome.

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What should I do if my new Peterson product doesn't seem to work properly?

If you've first tried all of the solutions offered here, please contact Peterson directly. It is important that you do NOT return the product to the store in which you purchased it without Peterson instructing you to do so. If your unit is problematic, we would like to limit the chances of another customer purchasing the returned unit. Always arrange for product service or replacement directly with Peterson.

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I've registered my StroboPLUS HD or Stomp Classic but the website will not allow me to configure or update my device.

In order for the website to be able to program your device over the USB connection, it first has to "register" the internal ID, so it can perform the USB communication.

Although you may have registered your warranty and serial number, until the site gets a read on your connected device for the first time, it cannot pair that physical device to your warranty registration and serial number and therefore will not allow it to be programmed. This is called 'pairing'.

Be sure to be logged in to the same account in which you registered your warranty. If using Peterson Connect for Google Chrome, you will be asked to 'pair'

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Peterson Connect on Windows 10 will not detect my tuner. Displays error message.

Be sure your Chrome Peterson Connect is updated to at least version 1.2.0. Released on March 9, 2017, version 1.2.0 should fix any Windows or Linux connectivity issues.

Chrome updates extensions automatically. If your version is lower than 1.2.0, see the FAQ entry on how to manually update Peterson Connect for Google Chrome.

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What is the range of Hz calibration or Concert A calibration of my ?

The Hz calibration range of your is . The default setting is Concert A 440Hz.

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StroboStomp Classic English Manual
Peterson Proposition 65 Warning

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Stomp Classic Version 1.0.06

Thursday, May 4, 2017 3:01:00 PM EDT

  • Various bug fixes and performace improvements.

Stomp Classic Version 1.0.05

Tuesday, September 24, 2013 9:40:00 AM EDT

  • Various Bug Fixes

Stomp Classic Version 1.0.04

Wednesday, August 7, 2013 10:37:00 AM EDT

  • Note display default is now the sharp ( # ) version of en-harmonic equivalents. Previously a combination of sharps and flats ( #/b ) were used.
  • Peterson Connect now supports characters P and L for custom octave names ( Pedal and Lever indicator for Steel ).

Stomp Classic Version 1.0.02

Sunday, January 1, 2012 2:01:30 PM EST

  • Enables Peterson Connect functionality
  • Various Bug Fixes.
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