In the design of outdoor pull rod speaker, the output end of Class D power amplifier chip, stereo full frequency speaker parallel treble is a very common application, now analyze its principle and treble speaker impedance description.
    1. Application diagram of the full frequency speaker in parallel with the tweeter speaker

    2. Schematic diagram of load impedance of 4Ω full-frequency speaker in parallel with 4Ω tweeter speaker

    3. 4Ω full-frequency horn in parallel 4Ω tweeter horn load impedance in the tweeter segment is theoretically approximately equal to the impedance of 2Ω.
    The power amplifier output nominal minimum support 4Ω load application scenario, especially the working voltage is also used to the relative limit, it is easy to overcurrent protection, the phenomenon of stuck sound. Need to change the tweeter to 8 ohm impedance or some other treatment. Prevent the power amplifier output overcurrent protection of the phenomenon of jamming.