When assessing price points, you must look beyond the sticker value and evaluate RMS Power vs. Peak Power; professional systems should prioritize a high RMS for sustained performance. Key components include Class D Amplifiers for efficiency, SPL (Sound Pressure Level) ratings (aim for >126dB for events), and Frequency Response (typically 40Hz-20kHz). Systems featuring DSP (Digital Signal Processing) presets for 'Club', 'Live', or 'Monitor' modes often command a higher price but offer significantly better operational versatility.