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IRN's Artistically Informational Posters


In response to your many queries and requests, you can now have large, full-color poster versions of our popular online interactive applets to hang on the wall of your studio, office, or classroom. They also makes an excellent gifts for your favorite musician, student or engineer.

Each poster measures 24” by 18”, is professionally printed here in the United States in ultra-sharp high-resolution with brilliant digital 4-color (CMYK) processing, and is printed on high-quality durable 100 lb, 10pt. glossy cover stock.

Order each poster individually singly or in multiple quantities, or order the full matching set of three posters. All major credit cards or Pay Pal cash and check account funds accepted. Just select your desired product and quantity from the selection boxes below and click the "Buy Now" button to continue.

* NOTE: Prices displayed do not inlcude a low shipping and handling charge, which will be calculated and displayed on the PayPal transaction page before your final approval of purchase.
- We do ship internationally with satisfied customers in approximately 40 countries so far. Please note, however, that you may be required by your individual country to pay an import VAT (Value Added Tax), excise tax or other import tax. Such taxes will be the sole responsibility of the recipient to track and pay.

The Musical Audio Frequency Spectrum  (Item #: FCP-MX)
Image of poster - click thumbnail to enlarge  This poster displays:
  • The full frequency ranges generated by 28 different instruments grouped into 5 instrument categories.
  • A frequency-aligned overlay of an extended-range piano keyboard, with the note and octave for each key labeled.
  • The frequency domains for sonic characteristics such as “rumble”, “warmth”, “sibilance”, etc.
  • Location of the 31-bands in a standard ISO-defined 1/3rd-octave graphic equalizer.
  • A color-coded breakdown of the full audio frequency spectrum into 5 ranges from sub-bass to the high-frequencies.
  • Color-coded “data boxes” for each frequency range containing specific ranges and characteristics.
Selet quantity:

The Frequency Response of the Human Ear  (Item #: ESP-MX)
Image of poster - click thumbnail to enlarge  This poster displays:
  • An "equal loudness contour" chart graphing the sensitivity of the average human ear to the full range of audio frequencies across the full human volume range.
  • A main chart "data box" explaining the chart and how to read it.
  • A color-coded breakdown of the full audio frequency spectrum into 5 ranges from sub-bass to the high-frequencies.
  • Color-coded “data boxes” for each frequency range containing specific ranges and characteristics.
Selet quantity:

Audio Input Recording Level Metering  (Item #: RLP-MX)
Image of poster - click thumbnail to enlarge  This poster displays:
  • A graphical side-by-side comparison of the five most commonly used recording level meter types.
  • All meter types are shown calibrated to the same standard signal voltages levels measured in dBu.
  • Graphic bullet captions describing common key signal levels.
  • All meters are color-coded and grouped into types “analog” and “digital”.
  • Color-coded “data boxes” containing descriptive details for the dBu voltage calibration and each of the 5 meter types.
Selet quantity:

Full Series 3-pack  (Item #: 3PK-MX) 
Image of poster - click thumbnail to enlarge  This package contains:
  • All three posters described above shipped together in a single discount 3-pack.
Selet quantity:




 
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