IT1186786B - Stable red phosphorus, prepn. - Google Patents

Stable red phosphorus, prepn.

Info

Publication number
IT1186786B
IT1186786B IT22725/85A IT2272585A IT1186786B IT 1186786 B IT1186786 B IT 1186786B IT 22725/85 A IT22725/85 A IT 22725/85A IT 2272585 A IT2272585 A IT 2272585A IT 1186786 B IT1186786 B IT 1186786B
Authority
IT
Italy
Prior art keywords
speakers
horns
rear face
baffle case
prepn
Prior art date
Application number
IT22725/85A
Other languages
Italian (it)
Other versions
IT8522725A0 (en
Inventor
Gianfranco Rinaldi
Cesare Perelli
Original Assignee
Saffa Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saffa Spa filed Critical Saffa Spa
Priority to IT22725/85A priority Critical patent/IT1186786B/en
Publication of IT8522725A0 publication Critical patent/IT8522725A0/en
Application granted granted Critical
Publication of IT1186786B publication Critical patent/IT1186786B/en

Links

Landscapes

  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

A speaker device comprises a baffle case and a number of small speakers mounted in a vertical array in close proximity one to another in the baffle case. Each of the speakers includes a diaphragm having a front and rear face and a number of acoustical baffles for reveiving sound radiated from the rear face of a speaker. The number of the acoustical baffles is equal in number to the number of the speakers with one of the acoustical baffles associated with the rear face of each of the respective speakers. Each of the acoustical baffles includes an opening, and a number of small horns is equal to the number of the speakers such that one of the horns is associated with each of the speakers. Each of the horns has a throat connected to the opening of the one of the speakers with which the horn is associated. The number of horns vertically are stacked one on the other in the baffle case and joined at a common mouth in the baffle case.
IT22725/85A 1985-11-05 1985-11-05 Stable red phosphorus, prepn. IT1186786B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT22725/85A IT1186786B (en) 1985-11-05 1985-11-05 Stable red phosphorus, prepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22725/85A IT1186786B (en) 1985-11-05 1985-11-05 Stable red phosphorus, prepn.

Publications (2)

Publication Number Publication Date
IT8522725A0 IT8522725A0 (en) 1985-11-05
IT1186786B true IT1186786B (en) 1987-12-16

Family

ID=11199706

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22725/85A IT1186786B (en) 1985-11-05 1985-11-05 Stable red phosphorus, prepn.

Country Status (1)

Country Link
IT (1) IT1186786B (en)

Also Published As

Publication number Publication date
IT8522725A0 (en) 1985-11-05

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