Kiefer Auction Supply is the nation's leader in highly portable sound amplification systems. From an extremely small device to a room blasting system we've got it all. Nothing is more important than an auctioneers voice and hour after hour of bid calling is hard on the voice. Straining your voice is even worse. It's critical for an auctioneer to have portable sound equipment that meets their needs.

We have wireless sound systems, battery operated and headset microphone systems. We've got the system for you. We've been an Amplivox and Megavox dealer for decades and stand behind what we sell.  

We also sell portable sound systems to public service, community and school events, coaches and hundreds of other uses. Contact us for detailed information. 

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