White Papers: Difference between revisions - Bose Portable PA Knowledge

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== Bose White Papers ~~related to the Personalized Amplification System™ family of products, and the L1 Cylindrical Radiator<sup>®</sup> speaker.~~ ==

== Bose White Papers ==

Bose ~~has written and published several white papers related to their new approach. One was co-published with Line 6 on the subject of acoustic and electric guitar tone.~~

=== {{L1}} ===

* {{Bose White Paper 1}}

* [http://~~bose.infopop~~.cc/~~eve/forums/a/ga/ul~~/~~9721034854~~/~~BoseWhitePaper_ed2b~~.pdf ~~Applying the Benefits~~ of ~~Unamplified~~ Acoustic ~~Music to Performances~~ with ~~Amplification~~] ~~This is a wonderful document that speaks to~~ the ~~intent~~, ~~technology~~ and the ~~application of~~ the ~~{{PAS}}~~.

* [http://toonz.ca/bose/images/Line6-Bose_whitepaper.pdf Amplifying a Wide Range of Acoustic and Electric Guitar Sounds Across the Stage and Throughout the Audience with Little Change in Tone or Level] <br>Marcus Ryle — Co-founder & Vice President of Product Development Line 6 Incorporated, <br />Kenneth Jacob — Chief Engineer & Director Bose Live Music Technology Group

Summary: Amplified guitars are the source of some truly remarkable musical instrument

sounds. At the same time, we found they are the source of acoustical problems that

often prevent musicians and members of the audience from hearing the guitar as

intended...

=== Other ===

Note: The following documents discuss the Bose® Panaray MA12 Modular Array. The information is of interest as it applies to line arrays and is applicable in that context. Please be aware that the {{L1}} is a portable line array. It is twice the height of the MA12 and has different characteristics than a single MA12. See also [[L1® and the Panaray® MA12]]

* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/loudspeakers/Panaray_MA12/Downloads/Technical_data_sheet/tds_panaray_ma12_modular_line_array_loudspeaker.pdf Bose® Panaray® MA12 Modular Line Array: Technical Information and Polar Data]

One uses polar plots to describe the behavior of conventional speakers such as

constant directivity horns or small arrays built up using smaller transducers. Line

arrays produce cylindrical waves in the near field and therefore, the vertical polar

plots change as a function of distance. To describe the vertical radiation of a line

array an industry accepted method is to use validated modeling programs and paint a

picture of the radiation as a function of distance. This paper addresses the radiation

characteristics of the MA12 and in addition shows measured polar plots, on-axis

frequency response, controller curves, and impedance curves.

* [http://pro.bose.com/pdf/pro/technical_papers/tp_panaray_ma12.pdf Bose® MA12 Modular Array: Technical Foundation & Discussion] Morten Jørgensen and Kenneth Jacob, Bose® Professional Systems Division

Summary:

THE Bose MA12™ modular array takes advantage of the properties of cylindrical

waves to meet customer requirements that until now could only be met with

loudspeakers flown and aimed in more elaborate and expensive designs. With only

two dimensions of dispersion rather than the three of the more common spherical

waves, the sound from cylindrical waves diminishes much more gradually with

distance from the source. As a consequence, listeners experience relatively little

change in sound level from far away from the MA12 to literally right next to it. The

same gradual change in sound with distance makes the MA12 less susceptible to

feedback from microphones in close proximity. The radiation pattern of the MA12 is

wedge-shaped: wide from side-to-side but sharply confined to the top and bottom of

the array. The vertical radiation virtually shuts off above and below the speaker. As a

result, much less reverberation is generated because almost no sound is radiated

upwards to distant surfaces in the upper part of the room. The result is noticeably

better clarity and intelligibility. The ultra-thin shape of the MA12 means it is easy to

hide; it may be the most unobtrusive speaker yet developed given its exceptionally

high output and full, balanced frequency response. The fact that the MA12 is placed

at ear level (so that listeners are confined within its wedge-shaped radiation pattern)

means that it can usually be installed for a fraction of the cost of more elaborate

‘flown’ loudspeakers and loudspeaker clusters. Finally, it can be matched to a low

frequency enclosure (Bose Panaray MB4) when extended bass performance is

needed. Taken together, these features and advantages result in a product that

represents an important new tool for satisfying the most basic and important customer

requirements in a wide range of common applications.

----

[[~~category~~:Reference]]

[[Category:Reference]]

[[Category: MA12]]

@@ Line 1: / Line 1: @@
-== Bose White Papers related to the Personalized Amplification System&trade; family of products, and the L1 Cylindrical Radiator<sup>&reg;</sup> speaker. ==
+== Bose White Papers ==
-Bose has written and published several white papers related to their new approach. One was co-published with Line 6 on the subject of acoustic and electric guitar tone.
+=== {{L1}} ===
+* {{Bose White Paper 1}}
-* [http://bose.infopop.cc/eve/forums/a/ga/ul/9721034854/BoseWhitePaper_ed2b.pdf Applying the Benefits of Unamplified Acoustic Music to Performances with Amplification] This is a wonderful document that speaks to the intent, technology and the application of the {{PAS}}.
+* [http://toonz.ca/bose/images/Line6-Bose_whitepaper.pdf Amplifying a Wide Range of Acoustic and Electric Guitar Sounds Across the Stage and Throughout the Audience with Little Change in Tone or Level] <br>Marcus Ryle &mdash; Co-founder & Vice President of Product Development Line 6 Incorporated, <br />Kenneth Jacob &mdash; Chief Engineer & Director Bose Live Music Technology Group
+Summary: Amplified guitars are the source of some truly remarkable musical instrument
+sounds. At the same time, we found they are the source of acoustical problems that
+often prevent musicians and members of the audience from hearing the guitar as
+intended...
+<!-- http://bose.infopop.cc/eve/forums/a/ga/ul/6781015315/whitepaperLine6.pdf  -->
+=== Other ===
+Note: The following documents discuss the Bose® Panaray MA12 Modular Array. The information is of interest as it applies to line arrays and is applicable in that context. Please be aware that the {{L1}} is a portable line array. It is twice the height of the MA12 and has different characteristics than a single MA12. See also [[L1® and the Panaray® MA12]]
+* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/loudspeakers/Panaray_MA12/Downloads/Technical_data_sheet/tds_panaray_ma12_modular_line_array_loudspeaker.pdf Bose® Panaray® MA12 Modular Line Array: Technical Information and Polar Data]
+One uses polar plots to describe the behavior of conventional speakers such as
+constant directivity horns or small arrays built up using smaller transducers. Line
+arrays produce cylindrical waves in the near field and therefore, the vertical polar
+plots change as a function of distance. To describe the vertical radiation of a line
+array an industry accepted method is to use validated modeling programs and paint a
+picture of the radiation as a function of distance. This paper addresses the radiation
+characteristics of the MA12 and in addition shows measured polar plots, on-axis
+frequency response, controller curves, and impedance curves.
+* [http://pro.bose.com/pdf/pro/technical_papers/tp_panaray_ma12.pdf Bose® MA12 Modular Array: Technical Foundation & Discussion] Morten Jørgensen and Kenneth Jacob, Bose® Professional Systems Division
+Summary:
+THE Bose MA12™ modular array takes advantage of the properties of cylindrical
+waves to meet customer requirements that until now could only be met with
+loudspeakers flown and aimed in more elaborate and expensive designs. With only
+two dimensions of dispersion rather than the three of the more common spherical
+waves, the sound from cylindrical waves diminishes much more gradually with
+distance from the source. As a consequence, listeners experience relatively little
+change in sound level from far away from the MA12 to literally right next to it. The
+same gradual change in sound with distance makes the MA12 less susceptible to
+feedback from microphones in close proximity. The radiation pattern of the MA12 is
+wedge-shaped: wide from side-to-side but sharply confined to the top and bottom of
+the array. The vertical radiation virtually shuts off above and below the speaker. As a
+result, much less reverberation is generated because almost no sound is radiated
+upwards to distant surfaces in the upper part of the room. The result is noticeably
+better clarity and intelligibility. The ultra-thin shape of the MA12 means it is easy to
+hide; it may be the most unobtrusive speaker yet developed given its exceptionally
+high output and full, balanced frequency response. The fact that the MA12 is placed
+at ear level (so that listeners are confined within its wedge-shaped radiation pattern)
+means that it can usually be installed for a fraction of the cost of more elaborate
+‘flown’ loudspeakers and loudspeaker clusters. Finally, it can be matched to a low
+frequency enclosure (Bose Panaray MB4) when extended bass performance is
+needed. Taken together, these features and advantages result in a product that
+represents an important new tool for satisfying the most basic and important customer
+requirements in a wide range of common applications.
 ----
-[[category:Reference]]
+[[Category:Reference]]
+[[Category: MA12]]