L A B O R A T O R I E S
L A B O R A T O R I E S Congratulations ! 3 Specifications 3 Features 4 S302 About Protection Circuitry 6 Amplifiers and 2 Ohm Operation 6 Electrical Wiring 6 Power Fuses 6 Mounting the Amplifier 6 Low Input Wiring 7 S702 Two Channel Speaker Wiring 8 S804 Bridged Speaker Wiring with a Two Channel Amplifier 8 Tri-Way Speaker Wiring with a Two Channel Amplifier 9 Four Channel Amplifier Speaker Wiring 10 Bridged Speaker Wiring with a Two Channel Amplifier 10 Dual Tri-
Congratulations on your purchase of a SOUND STORM car audio amplifier. S-SERIES amplifiers are designed, engineered and manufactured in the USA to the highest level of quality, and will afford you years of listening enjoyment. All S-SERIES amplifiers utilize fully-regulated MOSFET power supplies, which assure that switching response is extremely fast and output power is clean.
Two Channel Amplifiers: S302, S402, S502, S702and S1002 Amplifiers Two Channel Bridgeable Amplifier Heavy Duty Aluminum Alloy Heatsink Class A-B Operation Variable Low Pass Crossover Control Continuously Variable Input Gain Control Gold Plated RCA and Low Level High Impedance Inputs Remote Turn On/Turn Off Circuit MOSFET Pulse Width Modulated Power Increase 2 ohm Stable Stereo Operation with Output Power Supply Soft Turn-On Circuit Thermal and Speaker Short Protection Circuitry LED Power and Protection Indi
Built-in Crossover All S-SERIES amplifiers feature built-in electronic crossovers. The 2 Channel amplifiers feature an adjustable low pass crossover. The 4 Channel amplifiers feature a pair of individually adjustable low pass crossovers. All S-SERIES amplifiers have been designed with 100% MOSFET power supplies, ensuring extremely quick switching response and self-protection.
Electrical Wiring All SOUND STORM S-SERIES amplifiers are equipped with easy top access screw terminals. These terminals are 14K Gold Plated in order to ensure excellent electrical contact, and to resist corrosion. When making electrical connections to the amplifier, please observe the following: Use at least 8 gauge or heavier wires for power and ground connections. Wire the amplifier directly to the car battery. For the ground connection, use the shortest possible wire to a good chassis ground point.
Low Input Wiring Two Channel Amplifiers: S302, S402, S502, S702and S1004 Amplifiers To OUTPUT of HEAD UNIT FourChannel Amplifiers: S664, S804, S1004, and S1204 Amplifiers FRONT INPUTS REAR INPUTS 7
TWO Channel speaker Wiring Two Channel Amplifiers: S302, S402, S502, S702and S1004 Amplifiers To BATTERY To REMOTE OUTPUT from HEAD UNIT RIGHT SPEAKER GROUND LEFT SPEAKER Bridged Speaker Wiring Connect the NEGATIVE SPEAKER TERMINAL to the RIGHT CHANNEL NEGATIVE AMPLIFIER TERMINAL Two Channel Amplifiers: S302, S402, S502, S702and S1004 Amplifiers Connect the POSITIVE SPEAKER TERMINAL to the LEFT CHANNEL NEGATIVE AMPLIFIER TERMINAL To BATTERY To REMOTE OUTPUT from HEAD UNIT GROUND SPEAKER IMPEDANCE 4
Tri-Way Speaker Wiring Tri-Mode Operational Output is a unique feature which allows a Crossover (Subwoofer) to Be operated in MONO mode, while the main speakers are playing in STEREO. To engage the amplifier in this mode, place the Crossover (Subwoofer) switch in the "OUT" position. Use a 100v non-polar capacitor for a high pass crossover and a wire coil inductor to block high frequencies from the Crossover (Subwoofer) as shown in the figure below.
Four Channel speaker Wiring Four Channel Amplifiers: S664, S804, S1004 and S1204 Amplifiers To BATTERY CH 1 SPEAKER To REMOTE OUTPUT from HEAD UNIT CH 3 SPEAKER CH 2 SPEAKER GROUND CH 4 SPEAKER Bridged Speaker Wiring Four Channel Amplifiers: S664, S804, S1004 and S1204 Amplifiers To BATTERY To REMOTE OUTPUT from HEAD UNIT GROUND SUBWOOFER LEFT SPEAKER SUBWOOFER RIGHT SPEAKER SPEAKER IMPEDANCE 4-8 OHMS! 10
Tri-Way Speaker Wiring Four Channel Amplifiers: S664, S804, S1004 and S1204 Amplifiers Tri-Mode Operational Output is a unique feature which allows a Crossover (Subwoofer) to Be operated in MONO mode, while the main speakers are playing in STEREO. To engage the amplifier in this mode, place the Crossover (Subwoofer) switch in the "OUT" position.
Precautions Before you drill or cut any holes, investigate your car's layout very carefully. Take care when you work near the gas tank, fuel lines, hydraulic line and electrical wiring. Do not operate the amplifier when it is unmounted. Attach all audio system components securely within the automobile to prevent damage, especially in an accident. Do not mount this amplifiers so that the wire connections are unprotected or in a pinche a condition, or likely to be damaged by nearby objects.
Troubleshooting Before removing your amplifier, refer to the list below and follow the suggested procedures, Always test the speakers and their wires first. No Output Confirm that all terminal strip connections are secure and tonight. Check both in-line and built-in fuses. Both the "+12v" and the "REMOTE" terminals must have +12v referenced to chassis ground. Confirm that the audio signal source (car audio, equalizer, etc.) is connected and is supplying output signal.
