9. Changes

This section keeps a running log of the changes to this document.

+ $Log: rac-faq.texi,v $ + Revision 4.57 2006/02/07 22:54:30 ianbjor + Update Matt Ion's contact info. + + Revision 4.56 2005/11/08 20:43:12 ianbjor + Update Michael Brennan's contact info. + + Revision 4.55 2005/08/09 05:59:45 ianbjor + Added new acronyms. + See section 1.1 What do all of those acronyms mean? [JSC,MZ] + + Revision 4.54 2004/03/06 06:09:41 ianbjor + + Rewrote and expanded section on stiffening capacitors. + See section 2.9 What is a "stiffening capacitor", and how does it work? [JSC]. + + Rewrote section on battery upgrades. + See section 2.10 When should I upgrade my battery or add a second battery? [IDB]. + + Rewrote section on using MP3 files in the car. + See section 3.32 Can I play MP3 files in my car? [AK]. + + Revision 4.53 2001/06/04 02:10:05 ianbjor + Fixed title of section. + See section 2.10 When should I upgrade my battery or add a second battery? [IDB]. + + Revision 4.52 2000/02/09 00:53:29 ianbjor + Updated for February 2000 Distribution + + Revision 4.51 1999/12/06 06:08:32 ianbjor + Updated for December 1999 distribution. + + Revision 4.50 1999/11/06 20:21:33 ianbjor + Added section on creating mono signals. + See section 5.16 How do I turn a stereo signal into a mono signal [BW]. + + Updated for November 1999 distribution. + + Revision 4.49 1999/10/04 08:19:20 ianbjor + Added _The Car Stereo Cookbook_ to the Books section. + See section 7.3 What books can I read? [JSC, JW, TT]. + + Added section about playing MP3 files in the car. + See section 3.32 Can I play MP3 files in my car? [AK]. + + Updated for October 1999 distribution. + + Revision 4.48 1999/08/30 03:57:46 ianbjor + More updates to URLs. + + Revision 4.47 1999/08/30 03:50:23 ianbjor + Added section regarding Alternator vs. Battery vs. Capacitors. + See section 2.10 When should I upgrade my battery or add a second battery? [IDB]. + + Updated for September 1999 distribution. + + Revision 4.46 1999/08/30 03:38:00 ianbjor + Fixed various typos. + Updated section about turn-off thump. + See section 2.2 My system "pops" when I turn it off. What is happening and how can I get rid of it? [JD]. + + Revision 4.45 1999/08/30 03:00:10 ianbjor + Added section regarding manufacturer sponsorship. + See section 6.7 How do I get sponsored by a manufacturer? [CM]. + + Revision 4.44 1999/08/29 20:59:55 ianbjor + Updates to various URLs throughout the document. + + Revision 4.43 1998/12/07 17:59:17 ianbjor + Updated for December 1998 distribution. + + Revision 4.42 1998/11/09 14:12:23 ianbjor + Updated for November 1998 distribution. + + Revision 4.41 1998/09/08 08:19:30 ianbjor + Updated for September 1998 distribution. + + Revision 4.40 1998/07/07 16:29:01 ianbjor + Updated for July 1998 distribution. + + Revision 4.39 1998/07/07 16:15:14 ianbjor + Added section about determining subwoofer enclosure dimensions. + See section 4.13 I know the box volume required for my subwoofer, but what are the best dimensions for my enclosure? [IDB]. + + Revision 4.38 1998/07/07 16:00:59 ianbjor + Added Special Requirements for working with Plexiglas. + See section 5.24 Are there any other special requirements for working with Plexiglas? [PS]. + + Revision 4.37 1998/07/07 15:58:09 ianbjor + Added section about tools used for cutting Plexiglas. + See section 5.23 What tools do I need to cut Plexiglas? [PS]. + + Revision 4.36 1998/07/07 06:06:23 ianbjor + Add sections about MDF. + See section 4.6 MDF for Dummies [IDB]. + + Revision 4.35 1998/07/07 05:45:02 ianbjor + Clarified static shock section. + See section 2.7 Sometimes when I step out of my car, I get a really bad shock. What is wrong with my system? [IDB]. + + Revision 4.34 1998/07/07 05:39:33 ianbjor + Added section about using an aftermarket changer with the + stock head unit. + See section 3.25 What kind of changer will work with my factory head unit? [PO]. + + Added reference to this new section to the options for + using a stock head unit. + See section 3.24 Are those FM modulator CD changers any good? What are my other options? [PW, JGr]. + + Revision 4.33 1998/05/13 06:56:34 ianbjor + Updated for May 1998 distribution. + + Revision 4.32 1998/05/13 06:47:28 ianbjor + Updated totals for IASCA scoresheets to use current (1998) scores. + See section 6.3 What are the competitions like? [HK, CD, IDB]. + + Revision 4.31 1998/05/13 06:39:40 ianbjor + Added information about turn off thump, and how to get rid of it. + See section 2.2 My system "pops" when I turn it off. What is happening and how can I get rid of it? [JD]. + + Revision 4.30 1998/05/13 06:22:15 ianbjor + Added section about Magnet Size. + See section 4.12 Are large magnets always better than small magnets? [ST]. + + Revision 4.29 1998/04/10 07:10:26 ianbjor + Updated for April 1998 distribution. + + Revision 4.28 1998/03/08 08:35:55 ianbjor + Updated for March 1998 distribution. + + Revision 4.27 1998/03/08 08:24:37 ianbjor + Added new section about carpeting enclosures. + See See section 4.11 How can I carpet my enclosure? [AO]. + + Revision 4.26 1998/03/08 08:06:58 ianbjor + Finally added information about how to build an enclosure. + See See section 4.5 How do I build an enclosure? [AO]. + + Revision 4.25 1998/03/08 07:34:18 ianbjor + Added Mike Harmon's updated and expanded section about bridging. + See See section 3.5 What does "bridging an amp" mean? [MHa]. + + Revision 4.24 1998/02/09 08:29:13 ianbjor + Clarified symbol notation for Impedance (using 'Z' instead of 'I'). + See section 5.9 How do I wire speakers "in series" and "in parallel?" [IDB]. + + Revision 4.23 1998/02/09 02:22:24 ianbjor + Updated for February 1998 distribution. + + Revision 4.22 1998/02/09 02:18:32 ianbjor + Added section about how distortion destroys speakers. + See section 5.22 Why is distortion harmful to my speakers? [RK]. + + Revision 4.21 1998/02/09 01:41:34 ianbjor + Added information about using too much or too little power with + speakers. + See section 5.21 What's worse for a speaker, too much or too little power? [IDB]. + + Revision 4.20 1998/01/06 15:51:02 ianbjor + Updated for January 1998 distribution. + + Revision 4.19 1997/12/09 08:06:21 ianbjor + Updated for December 1997 distribution. + + Revision 4.18 1997/12/09 06:43:00 ianbjor + Added section describing why kickpanels are a popular mounting + location. + See section 5.19 Why are kickpanels such a popular location for mounting speakers? [ES]. + + Revision 4.17 1997/12/09 06:14:35 ianbjor + Added section on building Kick panels. + See section 5.20 How can I build custom kickpanels? [MB]. + + Revision 4.16 1997/11/17 09:12:55 ianbjor + Removed useless reference in stiffening capacitor section. + See section 2.9 What is a "stiffening capacitor", and how does it work? [JSC]. + + Revision 4.15 1997/11/16 17:26:05 ianbjor + Small changes in introductory text. + + Revision 4.14 1997/11/13 10:41:29 ianbjor + Updated for November 1997 distribution. + + Revision 4.13 1997/11/13 10:38:42 ianbjor + Fixed typo and incorrect logic in noise troubleshooting logic. + See section 2.1 My speakers make this high-pitched whine which matches the engine's RPMs. What is it, and how can I get rid of it? [IDB]. + + Revision 4.12 1997/10/06 23:04:13 ianbjor + Updated for October 1997 distribution. + + Revision 4.11 1997/09/07 20:18:21 ianbjor + Fixed omission in section on setting gains with an Oscilloscope. + See section 5.18 How can I use an oscilloscope to set the gains in my system? [AO]. + + Revision 4.10 1997/09/07 00:44:05 ianbjor + Updated for September 1997 distribution. + + Revision 4.9 1997/09/06 01:07:08 ianbjor + Added section on setting gains with an oscilloscope. + See section 5.18 How can I use an oscilloscope to set the gains in my system? [AO]. + + Revision 4.8 1997/09/06 00:31:15 ianbjor + Fixed Changes Section to include complete 4.x history. + + Revision 4.7 1997/09/06 00:24:46 ianbjor + Added Changes section. + See section 9. Changes. + + Revision 4.6 1997/09/06 00:02:41 ianbjor + Added section descirbing how to determin speaker polarity. + See section 5.17 How do I determine a speaker's polarity? [IDB]. + + Revision 4.5 1997/09/05 22:22:20 ianbjor + Added section about Line Drivers. + See section 3.31 What is a Line Driver? Do I need one? [LC,IDB]. + + Revision 4.4 1997/09/05 20:38:42 ianbjor + Added section covering speaker sensitivity and the resulting SPL. + See section 4.2 How does speaker sensitivity affect real world SPL? Will a higher sensitivity give me a larger SPL? [MS]. + + Revision 4.3 1997/09/05 20:27:59 ianbjor + Added section about using subwoofers in the winter. + See section 4.10 Can I use my subs in the winter? [MS]. + + Revision 4.2 1997/09/05 18:18:25 ianbjor + Fixed minor wording error in crossover design section. + See section 5.13 How do I design my own passive crossovers? [JSC, JR]. + + Revision 4.1 1997/08/06 22:40:25 ianbjor + Updated for August 1997 distribution. + + Revision 4.0 1997/07/11 08:12:32 ianbjor + Updated FAQ to Texinfo format.