The DBX 2031 Equalizer is a professional-grade 20 channel rack-mountable unit designed for audio signal processing. With a sleek black design and a compact 2U rack unit height, this equalizer is perfect for music production, DJing, and other audio applications. The dbx brand is well-known for producing high-quality audio equipment, and the DBX 2031 model lives up to this reputation with its reliable performance and easy-to-use interface. Ideal for both studio and live settings, this equalizer is a valuable addition to any audio setup. The 1k and 1.5k are missing can be quick fix.