• Can I adjust the DSP?  We typically provide faceplate mounted controls for the DSP including Gain, LF Adjust, Crossover, and Delay.  These are the most useful settings for typical subwoofer applications.  Internally, our DSP also contains proprietary intelligence to protect the amplifiers during extremes while ensuring continuous output.  If you are one of our OEM customers, we provide tools for you to develop detailed EQ tailoring, limiting and other features to specifically match your cabinets and drivers, and can provide user switchable presets to match environments.  
• Will I have enough AC power? Most likely. Your outlet's circuit breaker can pass 3-4 times it's current rating for short periods of time. The largest amps with 4000+ watts might need their own outlet and breaker. The smaller amps can share 3 to 6 to a outlet and breaker. See the spec sheet for more details.   On the spec sheets, the 1/8th power spec is the level UL and other safety agencies consider "normal operation" for their testing.  On "normal" music it is the level that the clip light will flash with the beat. For special effects, EDM and such you may need to provide more AC service. For a residential outlet in the states you have 120V x 20A = 2400W to divide between whatever is plugged into it.