The “000 Hz • 12 dB/Octave” attribute groups filters and crossovers designed with a second-order slope (≈12 dB per octave) at a target cutoff frequency (Hz). A 12 dB/oct slope offers a balanced roll-off with predictable phase response, making it a staple for speaker crossovers (HPF/LPF), line-level active filters, instrumentation front-ends, and DSP equalization. Products in this tag can include op-amp Sallen–Key/Multiple-Feedback filter boards, RC modules, DSP configurable filters, and pro-audio crossovers, supporting Butterworth, Bessel, or Linkwitz–Riley alignments. Use this attribute to quickly find designs optimized for noise reduction, bandwidth limiting, driver protection, or tonal shaping while maintaining stable group delay and good transient behavior. NeoGiga India supplies genuine, RoHS-compliant filter modules and components with bulk B2B availability, institutional pricing, and nationwide delivery.