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Peterson Tuning Equipment

PETERSON AutoStrobeTM TUNERS
Plug it in, turn it on and tune.

Why Use A Real Strobe Tuner?

Buy with confidence.
As Peterson's largest global distributor with customers in over 120 countries worldwide, we can offer you guaranteed lowest pricing*, same-day shipping (in most cases), unlimited FREE technical support** and nearly 35 years practical field experience with Peterson strobe tuners.
Peterson AutoStrobe Tuners are ALWAYS in stock.
And remember, you'll pay
NOT A SINGLE PENNY OF U.S. STATE OR FEDERAL SALES TAX
on anything you buy from IPS, no matter where you are!

*WE'LL BEAT ANY COMPETITORS' IN-STOCK PRICE ON PETERSON AUTOSTROBE TUNERS
GUARANTEED!
If you are considering an electronic tuner and don't know what to buy, talk to us! (503-338-7425, 10-5PT most workdays) We'll be happy to discuss your options based on your level of experience and particular needs - not how much the tuner costs. Our technical staff does not work on commission and they are available to assist you with questions, tuning procedure or product selection. Even if you don't buy a tuner from us, at least have the proper information to make an informed decision. Many people have purchased an electronic tuner that wasn't made for tuning pianos.

Please consider that the vast majority of electronic tuners are designed for guitars, not pianos. This is why they cost so little compared to a tuner which has the reliable accuracy and range required for piano tuning. It may seem like a good idea to buy tuning equipment from a vendor who sells a "Seiko-grade" chromatic tuner alongside other equipment. Just keep in mind that very few people have ever actually used any of the electronic tuners they sell (let alone ever tuned a piano with one successfully). As the saying goes; Caveat Emptor! (in other words, without a warranty the buyer assumes all risk for making a regretful purchase)

**Ultimately, if you do buy a tuner from us, we do offer FREE unlimited technical support for as long as you need it.
(IPS does not offer after-sale support on electronic tuning equipment purchased from other resellers - please contact them directly)

Please Shop Safely

Does Your Favorite Recording Artist Use a Peterson AutoStrobe?

Hear what our customers say about the Peterson AutoStrobe:

"I tuned my wife's Kawai Grand today using our new Peterson 490. She says it's the best it has sounded in the 6 years we've owned it. We used the pre-programmed Temperments and the result is a more harmonious sound, with each note sounding distinct and clear, as opposed to what we both describe as the "muddled" overlapping tones of the previous tunings. Thanks for offering the Peterson 490. It really took the guesswork out of tuning and let me concentrate on developing feel with the tuning hammer and recognizing the slight changes in tone compared against a consistent visual reference. What a great piece of equipment!"
Jim & Kelly Phillips - Saipan

"I purchased a Peterson 490ST tuner from you a couple of years ago. It's great and I've tuned many pianos with it to my customers great satisfaction. I love this tuner and I can't imagine not having it."
R. Ransom - South Haven, MI

"I recently purchased the Peterson 490ST from IPS and am very pleased with the ease of operation and general performance of the unit. I can also see the advantage of having an external microphone. Once again, I must mention how pleased I am with the strobe. "
Ian F. Ford / Fords Piano Service - Invercargill, New Zealand

"I used the 490ST this weekend to shore up the tuning I performed on my piano. I used it to check the intervals I set and it works absolutely beautifully. I am quite happy with this unit - it will help me to become more adept at trusting my ears!"
G. Rosenthal - Denver, CO

Cents to Hz Conversion Chart


Peterson AutoStrobeTM 490
The forerunner to this model (the PT450) outsold virtually all electronic tuners on the market - and was used by more professional piano technicians and music educators than any other. State of the art technology incorporated into the AutoStrobeTM Tuner line has taken instrument tuning to an all new level. For dead-on accuracy, nothing else even comes close to a Peterson!

Peterson 490 Features:

  • Automatic note selection (automatically adjusts to the note being played). Note selection may also be made manually.
  • +2/-1 Note Display which allows a more precise reading of bass notes 2 bands higher and treble notes 1 band lower by shifting strobe patterns on the display disc.
  • 8 pre-programmed Temperaments (Equal, Pure major & minor, Mean Tone, Pythagorean, Werckmeister III, Kirnberger III, Vallotti & Young)
  • Up to 255 User-programmable Temperaments
  • Automatic Image Clarifier - designed to greatly accentuate the tuning beats and aid in the advancement of of the "tuning student" for better and quicker aural tuning. This feature allows the user to read partials and is also extremely useful on pianos which produce false beats or have inharmonicity problems within the scale).
  • Automatic Display Contrast Control which adjusts for varying lighting conditions.
  • Easy trasposition - strobe patterns appear at the correct note for Bb, F & Eb instruments.
  • Signal is measured by internal condenser microphone or use the 1/4" input jack for an external microphone or direct input from an electronic sound source.
  • Accuracy of response and temperaments are guaranteed to be within 1/10th of a cent (3 times more accurate than even the PT-450 which was accurate to within an incredible 1/3 of 1/100 of a semi-tone)!
  • No warm-up required.
  • Automatic calibration. Tuner automatically set to A-440 or selectable from A-350 to A-550.
  • Measure any frequency precisely and quickly by use of the touch-adjustment which displays on the LCD readout (selectable in 1/1000 of a semitone increments (.1 cents) - up to 50 cents sharp or flat within an 8 octave range - C-32.703Hz to B-7902.128Hz (10 times the flexibility of previous models).
  • "The Most Accurate Tuner Ever Developed (again)" - U.S. Patent pending.
  • Power consumption: 95v-105v, 110v-120v, 210v-230v, 230v-250v
    On-board selectable for use anywhere in the world
  • Dimensions: 13.4" (34.04cm) x 3.5" (8.57cm) x 6.375" (16.19cm).
  • Net weight: 8 Lbs. (3.65kg) / Shipping weight: 10 Lbs. (4.56kg)
  • Guarantee: 1 Year Parts & Labor
Peterson AutoStrobeTM 490........................$695.00 $599.95
(UNLIMITED FREE TECHNICAL SUPPORT PLAN INCLUDED w/ PURCHASE)
(this tuner lists at $969.00)
CLICK HERE TO ORDER

AutoStrobeTM R490
All of the advanced features of the AutoStrobe 490 in a rack mount configuration.
Peterson AutoStrobeTM R490..................$715.00 $619.95

(UNLIMITED FREE TECHNICAL SUPPORT PLAN INCLUDED w/ PURCHASE)
(this model lists at $989.00)
CLICK HERE TO ORDER

Peterson AutoStrobeTM 490ST - Our most popular tuner
- and
by far, the best choice for piano tuning at any price or skill level.

(also recommended for harpsichord, pipe organ, harp, and steel drum tuning)
An extremely flexible and exacting electronic tuner. All of the advanced features of the AutoStrobeTM 490 + definable memory which has the capacity for 225 custom temperament files, 31 custom stretch tables or a combination (i.e., 112 custom temperaments and 16 custom stretch files).

Features include:

  • preset stretch tables for various pianos which can be recalled, copied, edited, and stored. The stretch tuning feature allows the user to store note offsets for 12 chromatic pitches in each of eight octaves. There are also octave increment and decrement buttons that can be controlled remotely by an optional dual footswitch and/or you can use an optional single footswitch and have note or octave increment.

    PRESET TEMPERAMENTS IN THE PETERSON AUTOSTROBETM 490-ST

  • EQUAL
  • PYTHAGOREAN
  • JUST INTONATION-MAJOR
  • JUST INTONATION-MINOR
  • QUARTER COMMA MEAN-TONE
  • WERCKMEISTER-III
  • KIRNBERGER-III
  • YOUNG
  • KELLNER
  • POWER 5THs
  • PRESET STRETCH TABLES IN THE PETERSON AUTOSTROBETM 490-ST

    FOR VERTICAL PIANOS

  • SPINET - 39" and smaller
  • CONSOLE - 39" to 51"
  • UPRIGHT - 51" and larger
  • GENERIC VERTICAL - Average of vertical sizes
  • FOR GRAND PIANOS

  • SMALL - 5'10" and smaller
  • STUDIO - 6' to 7'11"
  • CONCERT - 8' and larger
  • AVERAGE - This table is an average of optimal settings over many styles and makes of upright and grand pianos.


Some very good information worth reading:
  • 490ST Users Manual
  • Peterson AutoStrobeTM 490ST.....$1089.90 $769.40
    (UNLIMITED FREE TECHNICAL SUPPORT PLAN INCLUDED w/ PURCHASE)
    (this model lists at $1,350.00)
    CLICK HERE TO ORDER

    Peterson AutoStrobeTM 590
    All of the features and accuracy of the AutoStrobeTM 490+
    • Audible Note Tracking (the internal audible tuner follows the notes being played)
    • Built-in speaker for the internal metronome & audible reference tones
    • Separate input and output jacks for headphones or patching through a PA system.
    • Visual range 8 octaves (C-32.703Hz to B-7902.128Hz).
    • Audible range 5 octaves(C-65.406Hz to B-1975.533Hz).
    • Power consumption: 95v-105v, 110v-120v, 210v-230v, 230v-250v
      On-board selectable for use anywhere in the world
    • Dimensions: 13.4" (34.04cm) x 3.5" (8.57cm) x 6.375" (16.19cm).
    • Net weight: 9 Lbs. (4.10kg) / Shipping weight: 11 Lbs. (5.02kg)
    Peterson AutoStrobeTM 590..................$957.95 $845.95
    (UNLIMITED FREE TECHNICAL SUPPORT PLAN INCLUDED w/ PURCHASE)
    (this tuner lists at $1,297.00)
    CLICK HERE TO ORDER

    AutoStrobeTM R590
    All of the advanced features of the AutoStrobeTM 590 in a rack mount configuration.

    Peterson AutoStrobeTM R590..................$977.90 $865.95

    (UNLIMITED FREE TECHNICAL SUPPORT PLAN INCLUDED w/ PURCHASE)
    (this model lists at $1,299.00)
    CLICK HERE TO ORDER

    KORG OT-120

    Better than a good set of tuning forks (5 octave range reference tone) for a lot less.



    CLICK HERE TO ORDER
    9E06110KORG OT-120
    Don't let the low price fool you - this is a surprisingly good temperament tuner for pianos (we've tuned with it ourselves and are quite impressed). For a complete description of this item, please Click here 3 year warranty!
    $127.65
    Peterson AutoStrobeTM Accessories

    Peterson AutoStrobeTM Carrying Case
    (for the 490, 490ST & 590 AutoStrobeTM tuners)
    This heavy stitched case w/ inner lining features a detachable strap (as shown) and inner Velcro pouch for convenient power cord & optional microphone or small parts/tool storage.
    9E06102.........................................................$50.35 $51.30
    Pay only $40.00 when purchased w/ any 490, 490ST or 590 AutoStrobeTM
    CLICK HERE TO ORDER

    RoadCase - PROTECT YOUR INVESTMENT!
    Hard case for AutoStrobeTM Tuners
    9E06115........................................................$138.75
    Pay only $124.90 when purchased w/ any 490, 490ST or 590 AutoStrobeTM
    CLICK HERE TO ORDER

    Single Footswitch
    For remote control of metronome (590 only), output mute (490 only) and note / octave increment (490ST only)
    9E06116........................................................$41.05 $38.50

    Double Footswitch
    For remote control of octave increment / decrement when using a 490ST stretch file
    9E06117........................................................$44.40 $37.00


    STROBE CENTER 5000-II

    • 7 octave visual range: C-16.352Hz to B-3951.064Hz; 8 octaves when using the DISPLAY +2/-1 feature.
    • Equal, pre-programmed or user definable temperament scales may be selected or use strectch tuning tables; all of which are guaranteed to be accurate within 1/10th of 1/100th of a semitone (1/10th of one cent or 0.006%).
    • Specific key selection allows a choice of Bb, F, Eb and C key signatures. Especially useful for instruments not tuned in "C".
    • Each of the individual 12 strobe discs (representing individual notes) is driven by separate microprocessor controlled motors for unparalleled accuracy.
    • An extremely flexible and definable memory has the capacity for 225 custom temperament files, 32 custom stretch tables or a combination (i.e., 112 custom temperaments and 16 custom stretch files).
    • Operates on either 105-125 or 210-240 volt AC 50/60Hz power sources.
    • Audio recognition is made by either the built-in high sensitivity condensor microphone or external microphone or pick-up which plugs directly into the front panel.
    • Dimensions: 7-1/2" x 21-1/4" x 14-1/4" (19.1cm x 54.0cm x 36.2cm).
    • Net weight: 26 Lbs. (11.8kg) / Shipping weight: 29 Lbs. (13.2kg).
    SC-5000-II.........................................$4,048.00 $3,445.95
    (this model lists at $5,200.00)
    LOW PRICE GUARANTEED!!
    CLICK HERE TO ORDER
    TONEWORKS

    DTR-2000 DIGITAL TUNER
    Rack-mount tuner with comprehensive features and specs - including strobe tuning and a cable check function.
    Chromatic (piano, etc.), guitar (6-string, 7-string)/bass, and open modes.
    • Five types of open tuning.
    • Three types of display: cents, hertz, or strobe.
    • Seven-semitone flat tuning mode supports dropped tunings up to 7 semitones – a worldwide first.
    • Adjustable calibration of 438–445 Hz. (Select either manual or auto)
    • Reference pitches can be output from the Sound jack (C2 - C6).
    • Two sets of inputs.
    • Built in mic supports acoustic guitar tuning.
    • Illumination function that lights up rack-mounted equipment below.
    • Dimensions: 18.94(W) x 4.45(D) x 1.81(H) in.
    • Weight: 3.09 lbs.
    Specifications subject to change without notice
    DTR-2000..............................................................$320.00
    (this tuner normally retails at $450.00)


    DTR-1000 DIGITAL TUNER
    Highly Accurate Tuning with Large LED for Easy Viewing.
    Chromatic tuner that automatically detects the note name and accurate pitch.
    • Seven-semintone flat tuning support.
    • Two types of display: cents or strobe.
    • Adjustable calibration of 438--455 Hz. (Manual/Auto)
    • Dimensions: 18.94(W) x 4.45(D) x 1.81(H) in.
    • Weight: 3.09 lbs.

    Specifications subject to change without notice

    DTR-1000..............................................................$225.00

    (this tuner normally retails at $329.00)


    EXTERNAL BYPASS OMNIDIRECTIONAL MICROPHONE

  • High sensitivity diaphragm
  • Accentuates visual display on all electronic tuners equipped with a 1/4" phono jack
  • Frequency response: 80-100Hz / 10,000-12,0000Hz
  • 9E06114.............................................................$40.00 $26.25

    Suction Cup Microphone
    For use on guitars, soundboards, steel drums, etc. 1/4" phono jack.
    9E06118........................................................$16.75
    Clip-On Microphone
    Useful for most all acoustic tuning applications. An exceptional add-on for the Peterson V-SAM tuner. 1/4" phono jack.
    9E06119........................................................$19.35 $10.95
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    International Piano Supply, Inc.
    88 NewOctave Loop, P.O. Box 1005
    Astoria, OR 97103-1005
    U. S. A.
    Phone: 1-503-325-0555
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