Current-Driving of Loudspeakers: Eliminating Major Distortion and Interference Effects by the Physically Correct Operation Method

Note moyenne 0
( 0 avis fournis par Goodreads )
 
9781450544009: Current-Driving of Loudspeakers: Eliminating Major Distortion and Interference Effects by the Physically Correct Operation Method

Why have the basic laws of electrodynamics been disregarded in the design of loudspeaker operations? A frank exposure of the flaws of voltage drive and a thorough, groundbreaking guide to the physically reasonable way of operating electrodynamic loudspeakers - current-drive. The author argues that the sound quality of virtually all existing speaker systems has been severely impaired by the manifoldly indefinite electromotive forces induced in the voice coil (arising from both motion and inductance), that corrupt the flow of current; and what's dramatic - the measurable evidence is plain and overwhelming. These inherent EMFs in themselves can never be suppressed by any kind of amplifier, but their detrimental effect on current and hence on sonic performance can be eliminated by adequate source impedance. Thus, the secret of valve amplifiers also becomes apparent. Written for all from the academic community to lay hobbyists. Besides new concepts for amplifier and speaker design and demonstrative projects, the book also features novel ideas for modelling, filter design, measurements, and protection; and an enlightening tutorial on analogue linear systems. For more details and sample pages, visit www.current-drive.info

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Review :

"The most valuable contribution of the book is that it unveils various noise mechanisms related to voltage control, and explains how they spoil the performance of a loudspeaker (not just in terms of increased harmonic distortion . . . ). That is, the central contribution of the book is to spread awareness of the phenomena. . . . The book does also tell us how these noise mechanisms can be removed with correctly executed current control. The author claims that a radical betterment in sonic performance can be achieved with rather simple means and principles. For example, according to Meriläinen, current driving demands active loudspeakers no more than voltage driving does.

The second valuable feature of the book is that it straightens many misconceptions in audio. For example, the traditional marriage of the amplifier impedance and the loudspeaker load assumes that the tiny output impedance of the amplifier nicely controls the woofer's cone displacement. But Meriläinen shows that the electrical damping related to voltage driving is in fact totally irrelevant outside the area of the fundamental (bass) resonance frequency. Also, many believe that it's beneficial e.g. for the speed of the sound that the mass of the cone is minimized. According to Meriläinen, there is no need to be concerned about where exactly the cone is at a certain point of time but only that the cone all the time has the signal related acceleration. And so on.

The third major contribution of the book relates to the control of the loudspeaker's behavior at bass frequencies. A single most important reason why markets have produced so few . . . equipment working on the current driving principle is that the control of the woofers' resonance under current driving conditions is considered to be hard to realize. The book addresses the problem and presents new practical methods and circuits to cope with the technical obstacles to a wider use of current driving."

Mauri Pännäri, Inner-Audio web magazine

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Acheter neuf Afficher le livre
EUR 30,83

Autre devise

Frais de port : Gratuit
De Royaume-Uni vers Etats-Unis

Destinations, frais et délais

Ajouter au panier

Meilleurs résultats de recherche sur AbeBooks

1.

Esa Merilinen, Esa Merilainen
Edité par Createspace, United States (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Paperback Quantité : 10
impression à la demande
Vendeur
The Book Depository
(London, Royaume-Uni)
Evaluation vendeur
[?]

Description du livre Createspace, United States, 2010. Paperback. État : New. Language: English . Brand New Book ***** Print on Demand *****.Why have the basic laws of electrodynamics been disregarded in the design of loudspeaker operations? A frank exposure of the flaws of voltage drive and a thorough, groundbreaking guide to the physically reasonable way of operating electrodynamic loudspeakers - current-drive. The author argues that the sound quality of virtually all existing speaker systems has been severely impaired by the manifoldly indefinite electromotive forces induced in the voice coil (arising from both motion and inductance), that corrupt the flow of current; and what s dramatic - the measurable evidence is plain and overwhelming. These inherent EMFs in themselves can never be suppressed by any kind of amplifier, but their detrimental effect on current and hence on sonic performance can be eliminated by adequate source impedance. Thus, the secret of valve amplifiers also becomes apparent. Written for all from the academic community to lay hobbyists. Besides new concepts for amplifier and speaker design and demonstrative projects, the book also features novel ideas for modelling, filter design, measurements, and protection; and an enlightening tutorial on analogue linear systems. For more details and sample pages, visit. N° de réf. du libraire APC9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 30,83
Autre devise

Ajouter au panier

Frais de port : Gratuit
De Royaume-Uni vers Etats-Unis
Destinations, frais et délais

2.

Merilinen, Esa
Edité par CREATESPACE (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Quantité : > 20
impression à la demande
Vendeur
Pbshop
(Wood Dale, IL, Etats-Unis)
Evaluation vendeur
[?]

Description du livre CREATESPACE, 2010. PAP. État : New. New Book. Shipped from US within 10 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du libraire IQ-9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 27,54
Autre devise

Ajouter au panier

Frais de port : EUR 3,34
Vers Etats-Unis
Destinations, frais et délais

3.

Esa Merilinen, Esa Merilainen
Edité par Createspace, United States (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Paperback Quantité : 10
impression à la demande
Vendeur
The Book Depository US
(London, Royaume-Uni)
Evaluation vendeur
[?]

Description du livre Createspace, United States, 2010. Paperback. État : New. Language: English . Brand New Book ***** Print on Demand *****. Why have the basic laws of electrodynamics been disregarded in the design of loudspeaker operations? A frank exposure of the flaws of voltage drive and a thorough, groundbreaking guide to the physically reasonable way of operating electrodynamic loudspeakers - current-drive. The author argues that the sound quality of virtually all existing speaker systems has been severely impaired by the manifoldly indefinite electromotive forces induced in the voice coil (arising from both motion and inductance), that corrupt the flow of current; and what s dramatic - the measurable evidence is plain and overwhelming. These inherent EMFs in themselves can never be suppressed by any kind of amplifier, but their detrimental effect on current and hence on sonic performance can be eliminated by adequate source impedance. Thus, the secret of valve amplifiers also becomes apparent. Written for all from the academic community to lay hobbyists. Besides new concepts for amplifier and speaker design and demonstrative projects, the book also features novel ideas for modelling, filter design, measurements, and protection; and an enlightening tutorial on analogue linear systems. For more details and sample pages, visit. N° de réf. du libraire APC9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 31,37
Autre devise

Ajouter au panier

Frais de port : Gratuit
De Royaume-Uni vers Etats-Unis
Destinations, frais et délais

4.

Esa Meriläinen
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Quantité : > 20
impression à la demande
Vendeur
BWB
(Valley Stream, NY, Etats-Unis)
Evaluation vendeur
[?]

Description du livre État : New. This item is Print on Demand - Depending on your location, this item may ship from the US or UK. N° de réf. du libraire POD_9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 34,08
Autre devise

Ajouter au panier

Frais de port : Gratuit
Vers Etats-Unis
Destinations, frais et délais

5.

Merilinen, Esa
Edité par CREATESPACE (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Quantité : > 20
impression à la demande
Vendeur
Books2Anywhere
(Fairford, GLOS, Royaume-Uni)
Evaluation vendeur
[?]

Description du livre CREATESPACE, 2010. PAP. État : New. New Book. Delivered from our UK warehouse in 3 to 5 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du libraire IQ-9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 25,59
Autre devise

Ajouter au panier

Frais de port : EUR 10,18
De Royaume-Uni vers Etats-Unis
Destinations, frais et délais

6.

Meriläinen, Esa
Edité par CreateSpace Independent Publishing Platform (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Paperback Quantité : 10
Vendeur
Ergodebooks
(RICHMOND, TX, Etats-Unis)
Evaluation vendeur
[?]

Description du livre CreateSpace Independent Publishing Platform, 2010. Paperback. État : New. N° de réf. du libraire INGM9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 31,74
Autre devise

Ajouter au panier

Frais de port : EUR 7,52
Vers Etats-Unis
Destinations, frais et délais

7.

Meriläinen, Esa
Edité par CreateSpace Independent Publishing Platform
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) PAPERBACK Quantité : > 20
Vendeur
Russell Books
(Victoria, BC, Canada)
Evaluation vendeur
[?]

Description du livre CreateSpace Independent Publishing Platform. PAPERBACK. État : New. 1450544002 Special order direct from the distributor. N° de réf. du libraire ING9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 34,40
Autre devise

Ajouter au panier

Frais de port : EUR 5,85
De Canada vers Etats-Unis
Destinations, frais et délais

8.

Esa Meriläinen
Edité par CreateSpace Independent Publishing Platform
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Paperback Quantité : > 20
impression à la demande
Vendeur
BuySomeBooks
(Las Vegas, NV, Etats-Unis)
Evaluation vendeur
[?]

Description du livre CreateSpace Independent Publishing Platform. Paperback. État : New. This item is printed on demand. Paperback. 352 pages. Dimensions: 9.0in. x 6.0in. x 0.9in.Why have the basic laws of electrodynamics been disregarded in the design of loudspeaker operations A frank exposure of the flaws of voltage drive and a thorough, groundbreaking guide to the physically reasonable way of operating electrodynamic loudspeakers - current-drive. The author argues that the sound quality of virtually all existing speaker systems has been severely impaired by the manifoldly indefinite electromotive forces induced in the voice coil (arising from both motion and inductance), that corrupt the flow of current; and whats dramatic - the measurable evidence is plain and overwhelming. These inherent EMFs in themselves can never be suppressed by any kind of amplifier, but their detrimental effect on current and hence on sonic performance can be eliminated by adequate source impedance. Thus, the secret of valve amplifiers also becomes apparent. Written for all from the academic community to lay hobbyists. Besides new concepts for amplifier and speaker design and demonstrative projects, the book also features novel ideas for modelling, filter design, measurements, and protection; and an enlightening tutorial on analogue linear systems. For more details and sample pages, visit www. current-drive. info This item ships from La Vergne,TN. Paperback. N° de réf. du libraire 9781450544009

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 39,95
Autre devise

Ajouter au panier

Frais de port : EUR 3,30
Vers Etats-Unis
Destinations, frais et délais

9.

Meriläinen, Esa
Edité par CreateSpace Independent Publishing Platform (2010)
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) Quantité : 1
Vendeur
Nearfine Books
(Brooklyn, NY, Etats-Unis)
Evaluation vendeur
[?]

Description du livre CreateSpace Independent Publishing Platform, 2010. État : new. Shiny and new! Expect delivery in 20 days. N° de réf. du libraire 9781450544009-1

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 64,59
Autre devise

Ajouter au panier

Frais de port : EUR 3,34
Vers Etats-Unis
Destinations, frais et délais

10.

Meriläinen, Esa
Edité par CreateSpace Independent Publishing Platform
ISBN 10 : 1450544002 ISBN 13 : 9781450544009
Neuf(s) PAPERBACK Quantité : 1
Vendeur
Cloud 9 Books
(Wellington, FL, Etats-Unis)
Evaluation vendeur
[?]

Description du livre CreateSpace Independent Publishing Platform. PAPERBACK. État : New. 1450544002 New Condition. N° de réf. du libraire NEW7.0615805

Plus d'informations sur ce vendeur | Poser une question au libraire

Acheter neuf
EUR 69,29
Autre devise

Ajouter au panier

Frais de port : EUR 4,17
Vers Etats-Unis
Destinations, frais et délais