Download Electrostatic Loudspeaker Design Cookbook by Roger Sanders PDF

By Roger Sanders

The Electrostatic Loudspeaker has intrigued song enthusiasts on account that their advertisement advent simply after international warfare II. listening to track through this kind of machine usually turns usual song listeners into devoted, passionate partisans of this transducer structure because the purely actual route to exact sound copy. upload to this extra incentive that such audio system could be built out of available fabrics, and the convert becomes a devotee able to make investments amounts of time and effort into the closest an identical of the fitting loudspeaker. the facility to maneuver a panel of graphite impregnated plastic immersed in a excessive voltage box with audio sign has interested audiophiles because the earliest days of top of the range sound replica after international struggle II. This enthusiasm leads unavoidably into explorations of the mythical output transformerless amplifier (OTL) style considering that such units fit their excessive impedance outputs preferably to the electrostatic's enter. Then there's the electrostatic headphon e sideshow which beckons tantalizingly. not anyone writing concerning the electrostatic has contributed extra to the good fortune of novice speaker developers than Roger R. Sanders. His first article at the subject seemed within the Audio beginner in 1975 (pp. 18-28) His designs have been encouraged to a point, and trained through, the pioneering paintings of David Hermeyer, who released a chain of Audio beginner articles on construction electrostatics, in addition to strength amplifiers designed to force them. Electrostatic developers have robust critiques approximately perfect codecs, stator constitution, polarizing voltages and lots of different information. during this e-book the writer surveys the entire possible choices and retains transparent approximately his personal personal tastes, a lot of that are subjective. The Electrostatic Speaker layout Cookbook is a whole consultant for the amateur and the skilled builder to effectively construct the bizarre sound copy equipment. From again conceal of this e-book

Show description

Read or Download Electrostatic Loudspeaker Design Cookbook PDF

Similar acoustics & sound books

Acoustics: an introduction

This definitive textbook presents scholars with a accomplished advent to acoustics. starting with the elemental actual rules, Acoustics balances the basics with engineering elements, functions and electroacoustics, additionally masking track, speech and the homes of human listening to. The ideas of acoustics are uncovered and utilized in: room acoustics sound insulation in constructions noise keep watch over underwater sound and ultrasound.

Engineering Noise Control Theory and Practice, Fourth Edition

The emphasis of this version is solely on passive technique of noise keep watch over and the bankruptcy on lively noise keep an eye on that seemed within the moment and 3rd variants has been changed with a bankruptcy on sensible numerical acoustics, the place it truly is proven how unfastened, open resource software program can be utilized to resolve a few tough acoustics difficulties, that are too advanced for theoretical research.

Extra info for Electrostatic Loudspeaker Design Cookbook

Example text

4. Absorptionsgrad αS bei diffusem Schalleinfall auf eine 60 mm dicke Glaswolleplatte mit 80 kgm3 hinter einer 5 mm dicken porösen Putzschicht (□) im Vergleich mit einem Absorber gleicher Gesamtdicke nach Abb. 2 wie sie in Wand- und Deckenverkleidungen üblich sind (z. B. d = 20 bis 50 mm), liegt die Absorption im gesamten interessierenden Frequenzbereich weit unter den Werten nach Abb. 2. Es macht daher Sinn, dünnere Mineralwolle-Schichten vor Ort mit einem relativ dichten porösen Putz abzudecken.

Abschn. 1 (b). In solchen Fällen hilft neben der Veränderung der 18 3 Schallabsorption für den Lärmschutz und die raumakustische Gestaltung architektonischen Struktur (z. B. Schrägstellung von Fenstern oder Wänden) und Anbringung vorgesetzter oder abgehängter Reflektoren eben nur Auslöschung der schädlichen Reflexion durch gezielte Absorption. Insbesondere in reflexionsarm ausgekleideten Messräumen können auch kleinste reflektierende Flächen, z. B. als Schalttafeln oder Leuchten, die Messung stark verfälschen.

Im Folgenden werden reaktive Absorber behandelt, die dem Schallfeld eine undurchlässige Schicht entgegensetzen, deren flächenbezogene Masse mcc nicht klein, sondern groß gegenüber der in der auftreffenden Welle mitbewegten Luftmasse nach Gl. 2) ist. Eine solche Masse kann mit dem Schallfeld nur reagieren, wenn sie als Teil eines Resonanzsystems anregbar gemacht wird. Dies geschieht am einfachsten dadurch, dass eine Platte im Abstand zu einer schallharten Rückwand, etwa wie in Abb. 1 angedeutet, auf einer Unterkonstruktion befestigt wird, die den Wandabstand d definiert und das so gebildete Luft-Kissen akustisch schließt.

Download PDF sample

Rated 4.01 of 5 – based on 38 votes