![]() PDX amplifiers are tested and documented to show their true actual output. This allows excellent flexibility with multiple speaker and subwoofer loads and is adjusted automatically.Įach PDX amplifier comes with its very own birth-sheet. These amps are stable at low impedances and are capable of their rated power from 2 to 4 ohms for all models. This interruption-free design allows for non-stop enjoyment with no hiccups or drop-outs, just clean, clear output Once the battery voltage increases, power will be restored. If the circuit detects a Low Battery condition, it will gradually decrease power output if battery voltage becomes too low. ![]() Once cool, the power output automatically increases back to the previous level. If the amp gets too hot, the Thermal Protection circuit kicks in and gradually decreases output power until it cools down. The Power Management Processor controls all aspects of amplifier performance, monitoring voltage, temperature and output to ensure uninterrupted power output for non-stop listening. PDX amps incorporate Alpine’s new Power Management circuit. PDX amplifiers have an extremely high total system efficiency of ~80% (power supply is rated at >90%, output stage is rated >90%). The PDX power supply delivers tremendous headroom with low distortion and noise. Ratings are >1000 for Mono and >500 for 4ch. With ultra-low output impedance, the new PDX offers extremely controlled, tight bass for unprecedented sound quality. The PDX amps deliver crystal clear music every time. Forget unwanted background noise or static. These amps are capable of unheard of S/N ratio up to 95dB S/N 1W, 122dB S/N at rated power for extremely clean, uncolored sound.
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