Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

Douglas Self's Active Crossovers book
Douglas Self's Active Crossovers book
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 28th December 2017, 08:08 PM   #11
DouglasSelf is offline DouglasSelf  United Kingdom
diyAudio Member
 
DouglasSelf's Avatar
 
Join Date: Mar 2007
Location: London
The new Second Edition is a considerable expansion. It should be on the streets by about April 2018.

This is what I've written to go on the back cover of the new Second Edition:

The new material includes

● A much, much, broader palette of ready-made filter designs for crossover construction, including single-stage 4th-order Linkwitz-Riley filters, which make it possible to build a 2-way 4th-order active crossover with one dual opamp. (that’s just one stereo channel, obviously) Other additions are many new ways to make 4th and 5th-order filters, new 5th and 6th-order highpass filters, and more advanced filters such as the Tow-Thomas biquad, which allow greater precision in defining the response.

● More on notch filters, especially full design details and procedures for the extremely flexible and useful Bainter notch filter.

● Economical ways of making high-order bandwidth-definition filters.

● A big new chapter on distortion and noise in active filters, covering Sallen & Key, multiple-feedback, and Tow-Thomas filters.

● More on equalisation circuitry, including filter slopes of -3 dB and -4.5 dB/octave.

● More on different loudspeaker types and their specific crossover requirements. New stuff on speaker non-linearity and Doppler distortion, and sound absorption in air.

● A new section on MTM (d’Appolito) Tweeter-Mid configurations

● A full explanation of vertical line arrays of loudspeakers, including J-arrays and amplitude and frequency tapering.

● A whole new chapter on motional feedback loudspeakers and interfacing them with active crossovers.

● Instrumentation amplifiers as low-noise balanced inputs. They have long been praised for having superb common-mode rejection, but this has been hard to exploit in audio applications. I demonstrate how to do it, and get lower noise at the same time. Also, what I modestly call the Self variable-gain balanced input, which gives excellent channel balance on stereo inputs without using expensive parts.

● Much more on the ingenious but little-known technology of ground-cancelling outputs, showing how they can give a noise advantage over conventional balanced interconnections. Cunning ways of substantially reducing line output transformer distortion at near-zero cost are described.

● New material on achieving awkward resistor and capacitor values.
__________________
Douglas Self

Last edited by DouglasSelf; 28th December 2017 at 08:20 PM.
  Reply With Quote
Old 29th December 2017, 07:09 AM   #12
ashok is offline ashok
diyAudio Member
 
ashok's Avatar
 
Join Date: Jun 2002
Location: 3RS
Douglas Self's Active Crossovers book
Looks interesting. I'll book a copy ! I hope it's a paperback . Don't like to pay extra for hard bound copies.
__________________
AM
  Reply With Quote
Old 29th December 2017, 02:03 PM   #13
DouglasSelf is offline DouglasSelf  United Kingdom
diyAudio Member
 
DouglasSelf's Avatar
 
Join Date: Mar 2007
Location: London
Quote:
Originally Posted by ashok View Post
Looks interesting. I'll book a copy ! I hope it's a paperback . Don't like to pay extra for hard bound copies.
I believe it will be available in paperback, hard back, and electronic formats.
__________________
Douglas Self
  Reply With Quote
Old 30th December 2017, 12:32 AM   #14
PRR is offline PRR  United States
diyAudio Member
 
PRR's Avatar
 
Join Date: Jun 2003
Location: Maine USA
Amazon US:

Paperback: 672 pages
ISBN-10: 1138733032
Shipping Weight: 1.1 pounds
$90

Hardcover: 672 pages
ISBN-10: 1138733024
Shipping Weight: 1.7 pounds
$190

Late April (you can pre-order now).

eBook not listed yet, but unless Doug objects, Amazon is sure to want to eBook it.
Attached Images
File Type: gif Self-TDOAC.gif (24.3 KB, 39 views)
  Reply With Quote

Reply


Douglas Self's Active Crossovers bookHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
book-audio power amplifier by Douglas Self mikee12345 Solid State 12 6th January 2018 10:57 AM
active crossovers zimjj Multi-Way 9 7th November 2010 01:58 AM
Douglas Self's site is down Radioman62 Everything Else 3 8th September 2010 06:48 PM
New Douglas Self Book blmn Solid State 7 22nd July 2009 07:00 PM
Active crossovers GRollins Solid State 42 26th August 2006 10:26 AM


New To Site? Need Help?

All times are GMT. The time now is 08:35 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki