Three-way divider professional frequency divider advanced advanced crossover
The crossover is also called a crossover board, and is often installed in the speaker shell; its function is to divide the total frequency signal from the power amplifier, divide the treble signal to the tweeter unit, and divide the bass signal to the woofer unit. Just like the big lane on the big highway is separated from the small lane and the sidewalk, it will not confuse people and vehicles.
Because the frequency divider is installed inside the speaker shell and cannot be seen outside, many finished speakers are saved by the manufacturer, or a very low-end frequency divider, or one or two capacitors are used instead. If the speaker does not have a crossover, the sound will of course be a bit messy. The professional crossover will make the sound quality of the speaker clearer and distinguish the high and low levels; not only makes the high sound clear, but also strictly prevents low frequency signals from entering and protects the tweeter unit Does not burn out often. To increase the strength of the bass, the woofer can not be connected to the crossover, although it will not be damaged, but due to the entry of high frequency, the bass works in the state of the piston, and the strength is not as effective as the crossover.
How to identify whether the frequency divider is good or not: In addition to the reasonable circuit design itself, the material used is the larger the copper wire of the coil, the better, the use of oxygen-free copper winding; the higher the voltage resistance of the capacitor, the better, the use of non-inductive capacitors .
Product parameters:
Brand: LI WEI.
Model: L-213 (professional high school low three-way three-way divider).
Dimensions: 11.8 cm long, 9.6 cm wide and 3.2 cm thick.
Frequency: 900HZ / 5000HZ (that is, the bass works at frequencies below 900HZ, the midrange works at 900HZ-5000HZ, and the treble works at more than 5000HZ).
Power: 260W.
Impedance: 5-8 Euro.
Circuit: Bass all the way to standard 12db / oct, midrange all the way to standard 6db / oct, treble all the way to standard 12db / oct, tweeter and midtone with current limiting resistors.
Material: Inductor is made of oxygen-free copper, the bass coil uses 1.1MM wire diameter, and the tweeter coil uses 1.0MM wire diameter; the use of large copper wire has sufficient power to make the bass stronger; the capacitor uses a fever-level non-inductive capacitor, and the error is extremely high. At least ± 3%, and the high withstand voltage up to 400V, to better prevent the low frequency peak voltage from crossing and burning the tweeter. Reasonable design, exquisite appearance and excellent sound quality.