Catalog > Consumer Electronics > Kits > Smart Kits Catalog > Consumer Electronics > Kits > Kits (By Function) > Audio / Amplifiers etc. Smart Kit Loudspeaker Protection with Delay Loudspeaker Protection with Delay SMART KIT 1112 SPEAKER PROTECTION WITH DELAY Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview A very useful circuit for those who built their own amplifiers. It will protect the speakers from overloading, DC, and other dangerous signals. It protects both channels at the same time and also connects the speakers with the amplifier a short time after the power is turned ON thus protecting the speakers from the "THUMP" that is usually heard and which can sometimes destroy your expensive speakers. Suitable power supply is the SMART KIT 1061. Operating voltage: 12VDC. Additional Information nGroup Audio | Amplifier nDevice Kit Group Audio / Amplifiers etc. Model 1112