Final Configuration Summary

Crossovers: - Subwoofer: 28 Hz subsonic (BW24), 80 Hz LPF (LR4) - Midbass: 80 Hz HPF (LR4), 3000 Hz LPF (LR4) - Tweeter: 3000 Hz HPF (LR4)

Time Alignment: - R Tweeter: 3.70 ms - L Tweeter: 2.50 ms (fine-tuned) - R Midbass: 3.26 ms - L Midbass: 1.93 ms - Subwoofer: 0 ms

Equalization: - Subwoofer: -6dB @ 60 Hz Q=3.0, +2dB shelf @ 100 Hz Q=0.7 - Midbass: -4dB @ 250 Hz Q=6.0 - Tweeter: Output level -3 dB

Measured Performance: - Frequency response: 40 Hz–16 kHz ±3 dB - Impulse response: All drivers aligned within 0.3 ms - Imaging: Centered within 2° of dashboard center

Time invested: 7 days part-time (~15 hours total)
Cost: DSP $650, measurement mic $75, time $0 (DIY)

This is a real, achievable, excellent result for a dedicated installer following systematic process.

END OF CHAPTER 12

Chapter 12 Statistics: - Word count: ~7,600 words - Page equivalent: ~15 pages - Sections: 6 of 6 complete ✅ - Three-tier structure throughout ✅ - Visual placeholders: 12 referenced