Crown does it again! Their power amps are near-legendary, and the XTi 2 series is yet another example of rock-solid, powerful, innovative power amplification. Here, the XTi 4002 is packed with Peak Plus Limiters that give you full control over threshold, attack, and release. What's more, the Enhanced Subharmonic Synth section gives you control over frequency, gain, and filter type, so you can tune your XTi 4002 to your system. Beyond that, there are three fan modes you can choose from - normal, early, and fullspeed - so you can match the fan performance to your needs. Other noteworthy features include system monitoring for software visibility of AC line voltage and power supply temperature, integrated cast-aluminum handles for easy handling and dependable durability, a locking power cord clip, high-tech control software, and 49 user-definable presets. Bottom line? The XTi 2 series, including the XTi 4002, gives you an excellent solution for power amplification. Choose the one that best meets your power needs.