Pioneer PRS-D1200SPL Owner's Manual - Page 12

Connecting the Unit CAUTION Diagram A - Proper Amplifier Diagram B - Improper Amplifier 4 Ω Speaker 4 Ω Speaker 2 Ω Speaker 2 Ω Speaker 2 Ω Bridged Mode Amplifier 1 Ω Bridged Mode Amplifier DO NOT install or use this amplifier by wiring speakers rated at 2 Ω (or lower) in parallel to achieve a 1 Ω (or lower) bridged mode (Diagram B). Amplifier damage, smoke, and overheating could result from improper bridging. The amplifier surface could also become hot to the touch and minor burns could result. To properly install or use a bridged mode and achieve a 2 Ω load, wire two 4 Ω speakers in parallel with Left + and Right - (Diagram A) or use a single 2 Ω speaker. In addition, refer to the speaker instruction manual for information on the correct connection procedure. Single Amplifier MODE SELECT switch must be in MASTER position. Connect to a car stereo. For details, see the "Connection Diagram". • Use speakers having an impedance from 1 Ω to 8 Ω. 1 Ω to 8 Ω 1 200 W (1 Ω) 11