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From: wade@hwee.UUCP (Scott Wade)
Newsgroups: sci.electronics
Subject: Switching PSU
Message-ID: <470@hwee.UUCP>
Date: 20 Feb 89 09:56:55 GMT
Reply-To: wade@hwee.UUCP (Scott Wade)
Organization: Heriot-Watt University, Electrical Eng.
Lines: 10

A friend wants me to make a power supply for a car audio system. The amplifiers
need about +/- 30V at about 3A. Is the best (only?) way to do this to make a 
switched mode power supply. I have been told these are not recommended for use 
with audio systems. The supply must run off the 12V car battery (i.e. no other
batteries allowed). Anyone have any ideas?

Scott Wade
Heriot-Watt University
Edinburgh
Scotland.