Boss Audio PH1500M User Manual in English - Page 3

Features Your new PHANTOM amplifier features the following: • Class A-B operation • Bridgeable outputs (except PH1500M and PH2500M) • Tri-Mode capable (except PH1500M and PH2500M) • MOSFET PWM (Pulse Width Modulated) Power Supply • 2 Ohm stable stereo operation with output power increase • Thermal and speaker short protection • Soft turn-on circuit • Remote turn-on/turn-off circuit • Variable input gain control • Variable low pass crossover(s) • Fixed high pass crossover(s) • Variable 0 to +18dB Bass Boost • Gold-plated RCA low level and high level inputs • LED power and protection indicators • Black anodized heatsink • Remote subwoofer level control About 2 Ohm operation Your PHANTOM amplifier has been designed to operate efficiently at loads down to 2 Ohms. This means that you can install four 8 Ohm speakers per channel, when using parallel wiring. Increasing the number of woofers per channel at low frequencies (below 100Hz) produces an acoustic coupling effect. This acoustic coupling effect increases your power output by about 3dB per speaker, or the equivalent of an additional 10W per speaker. When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount, so be sure you have enough current to run the amplifiers into a 2 Ohm load. If you lack adequate current, your music reproduction will be distorted. PHANTOM MOSFET Amplifier User's Manual - page 3