Revised: 6/11/2020
SAFETY ATTENTION :RI SQUE DE CHOC EL ECTR IQUE-NE PAS OUVRIR CAUTION: To reduce the risk of electric shock, do not remove cover or back . No user-serviceable parts in side. Refer servicing to qualified service person nel. The lig htn ing flash with arrowhead symbol within an equilateral triang le is intended to alert the user to the presence of un-insu lated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
SAFETY 10. Protect the power cord from being walked on or pinched particu larly at the plugs, conven ience receptacles, and at the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use on ly with the cart, stand, tripod, bracket, or table specified by the manufactu rer, or sold with the apparatus. When a cart or rack is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 13.
PLACEMENT Cong ratulations on you r purchase of an OSD Audio Amplifier. Please take a few moments to read the entire man ual and be su re to retain this document for future reference. Please read and observe all safety instructions. WARNING: To reduce the risk of fire or electric shock, do not expose this amplifier to rain or moisture.
INSTALLATION 1. Connecting the Subwoofer to the Amplifier CAUTION: Only make connections when the amplifier power is off. There are two output terminals on the back of the amplifier, one positive and one negative. (Diagram 1). 3 way binding post output terminals allow for a variety of ways to connect a subwoofer to the amplifier, including stripped wire, spade connectors, etc. Subwoofer must be connected with a minimum of 14-gauge speaker wire. Be sure all connections are secure. 2.
OPERATION Please use diagrams 1 & 3 to fam iliarize yourself with the front and rear panels of the SMP300 . CAUTION: Please read all of the following instructions to prevent causing damage to your system. FRONT PANEL CONTROLS • Power Switch The switch marked "power" on the front panel of the amplifier will turn off all amplifier circuitry including Auto Sense circu itry. • Volume Controls Use this to match the output level of the subwoofer to that of the main speakers in the system .
TROUBLESHOOTING The SM P300 Subwoofer Amp lifier is designed to function trouble free. Most problems occur because of operating errors. If you have a problem, please check the troubleshooting list first. If the problem persists, contact tech support at 1-562-697-2600 or e-mail us at Support@osdaudio.com. Problem Possible Causes and Solutions a . Audio to the amplifier is not co nnected properly. Check this and other system component manuals to ensure proper con nection. No sound is heard b.
FEATURES AND SPECIFICATIONS Features: • A compact and powerful digital subwoofer amplifier for home theater applications • Efficient Class D digital technology runs cool under demanding loads • Rated at 500W peak power and 250W continuous RMS (4-ohms) • Includes front-panel variable low-pass filter for balanced and accurate bass • Additional front panel controls include phase and volume • Multiple input options for older and newer receivers and pre-amps • Auto sensing feature turns off amp whe
