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NHT designed this binding post style speaker wire terminal plate (that accepts banana plugs) with a built-on three-way crossover. Save nearly half off the original retail price--the inductors alone are worth nearly $20--through this Parts Express exclusive factory buyout. All inductors are solid core type. The tweeter 4 µF capacitor is poly. Plate dimensions: • Overall: 3-1/8" H x 3-5/8" W • Cutout: 2-1/8" H x 2-5/8" W.
A 4,500 Hz 3rd-order Butterworth high-pass for the tweeter uses a 0.15 mH inductor and a 4 µF capacitor, with a 20 µF capacitor in parallel. An L-Pad is formed using a 4 ohm resistor is parallel, with a 1 ohm resistor in series. A lamp fuse is included for tweeter protection.
For the midrange section, a 350 Hz, 1st-order Butterworth high-pass filter uses a 150 µF capacitor. The 3,000 Hz 1st-order Butterworth low-pass uses a 0.55 mH inductor.
The woofer section features a 2.8 mH inductor and 55 µF capacitor to comprise a 2nd-order, 450 Hz low-pass filter that follows a Butterworth slope.
See the Manuals/Resources section for a crossover schematic.
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