General Info:
- Four - HiVi F5 Kevlar MidBass Drivers
- Two - HiVi SD1.1A Dome Tweeters
- Fully Shielded
- 170 watts RMS @ 4ohms
- 2nd / 3rd Order crossover at 4kHz
- Frequency Response: 60Hz - 20kHz
- Overall Dimension: 43"x 7"x 14"
The enclosure design for the center channel is shown below.
Figure 1: HiVi Home Theatre Center Channel Speaker Enclosure Drawing
The crossover design for the center channel speaker and the modeled frequency response is shown below.
Figure 2: HiVi Home Theatre Center Channel Speaker Crossover Schematic
2-Way Crossover Network
Low-Pass (LP) Filter: 2nd-Order Butterworth, Corner Frequency: 4000 Hz
High-Pass (HP) Filter: 2nd-Order Butterworth, Corner Frequency: 4000 Hz
C1 = 3.3 uF, Polypropylene, 0.00764 ohms
C2 = 8.2 µF, Polypropylene, 0.00548 ohms
C3 = 15 µF, Polypropylene, 0.0048 ohms L1 = 0.27 mH, Air Core(#18), 0.215 ohms
L2 = 0.13 mH, Air Core(#18), 0.16 ohms
Woofer Impedance Equalization Circuit
Req = 2.4 ohms
Ce = 25 uF
L-Pad Circuit: 1.32 dB
Rp1 = 0.51 ohms
Rp2 = 5.1 ohms
DIY Center Channel Speaker Construction
The center channel enclosure construction is shown in the photographs below.
The finished center channel cabinet is then primed and painted using several coats of an oil based epoxy paint and then finished with red oak trim.
Photograph 6: DIY HiVi Home Theatre Speakers
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