Two active two-way power amplifier circuits 01

The frequency divider is composed of two low-pass and high-pass filters connected in parallel. After passing through the frequency divider, the input signal is divided into
two audio signals less than 2kHz and greater than 2kHz, which are supplied to dual-channel power amplification respectively, and then drive the bass and tweeter speakers to produce sound. . c:l is
the DC coupling capacitor, RP2 can be used for tone control. This kind of frequency divider has a simple structure, stable operation, easy adjustment of the frequency dividing point,
easy installation, and a certain amplification factor. The disadvantage is that the maximum attenuation rate is only 20dB/decade, which makes the separation of high and low sounds incomplete
; compared with the passive crossover, an additional power amplifier channel is added.