Introduction

Notes on Internal Circuitry

This manual provides information on the features, instal- lation, and operation of the Punch 2-channel Amplifiers. We suggest you save this manual for future reference.

We strongly recommend you have your Authorized Rock- ford Fosgate Dealer and Service Center install the new Punch amplifier. If you do choose to install the amplifier yourself, please be sure to read the entire manual before beginning.

The Rockford Punch 40DSM, 60DSM, 100DSM and 200DSM automotive stereo power amplifiers provide state-of-the-art sound in cars, vans, boats, or wherever a high current 12 volt power source is available.

“Discrete Surface Mount” (DSM) technology is utilized in the crafting of all our Punch amplifiers. This process provides greater ruggedness and consistency of both components and layout. Already used heavily in aero- space, industrial and automotive applications, this tech- nology is also highly advantageous in the hostile automo- tive environment.

The Punch adjustable input circuits are designed to match almost any music source. The amplifiers will drive most normal speaker types.

Internal circuitry in the Punch amplifier prevents damage due to speaker terminal shorts. The Punch incorporates internal battery line filtering and extensive noise preven- tion circuitry.

The Punch Equalization circuit is best utilized and de- signed to compensate for the acoustic inadequacies of the automotive environment. This patented circuitry will correct for the poor bass response and natural high frequency roll-off inherent in the world of automotive stereo. The result is full-range sound without the unpleas- ant changes in the mid-range sound produced by most tone control and equalizer circuits.