Introduction to the three-way frequency divider circuit: This frequency divider is set to a stereo 6-channel output structure, inputs stereo left and right channel signals, and outputs 6-channel signals, which are divided into left treble, left bass and right treble, right bass, left mid-range, and right mid-range, which can directly drive the 6-channel power amplifier circuit. of this frequency divider: Excellent frequency divider circuit★No peaks or valleys in the frequency divider★Easy to set the frequency divider point★ adjustment of 6-channel output★Fever-grade design and production★Perfect reproduction of the original sound tone 1. Wave generator type: Limkcwitz-Rilev filter 2. Crossover point: 310HZ3.1KHZ (. 20HZ-310HZ for bass output, 310-3.1KHZ for midrange output, 3100-20KHZ for treble output) Crossover point can be customized to other frequencies (free customization. The best crossover points for different speakers are different. You can give me the crossover point and I help you calculate the circuit parameters before selling it 3. Attenuation rate: -24dB/Oct 4. Board structure: 6-channel output, treble, bass, midrange 5. Op amp chip: double-precision NE5532 (of course, other op amps can be replaced according to customer needs, such as: OPA2604AUOP275GTL072, etc.) 6. Board dimensions: 173 x 79mm 7. AC transformer power supply range dual 14 to dual 19V 8. Connectors: audio input/frequency division output... 2-link gold-plated lotus socket x 4 Color: Green Material: ABS Package Contents: 1 * Divider Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.