There are hundreds of audio amplifier brands out there but most are designed for audio applications which means two things so far as your application is concerned:
the ratings are for continuous operation with speech and music which have a high average to peak signal voltage ratio as a result, if you operate them continuously with sine wave signals you should de-rate by a factor between four and eight otherwise the amp will go into thermal protection mode or fail from overheating if the ventilation is not fan assisted. secondly the bandwidth will be limited to exclude frequencies below about 20Hz and above about 20kHz If you need a response down to DC or up to 50kHz an audio amp is not suitable. Even if it passes the signal it will not meet the full power rating which is typically 1kHz or 20 to 20K on better brands. You don't mention output impedance or load impedance. Many audio amps are unhappy below four Ohms unless you include 2 ohm rating in your search requirement. My employer has twenty years experience with high power audio amps for installation and sound rental company touring applications. Our models include 2 ohm and 1 ohm ratings, and a variety of different power levels and construction standards. There are light weight models with switching power supplies which are easy to move around and we have at the other extreme 200 pound behemoths with linear toroidal power supplies. You can research our range at www.crestaudio.com If you have specific questions please feel free to contact me off-line at [email protected] or 201 475 4659. Ted Rook Audio Engineer ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
