The PC351BK from Infinity is a 3-way passive center channel speaker. The speaker has a low-resonance cabinet that houses a pair of 5.25" woofers, a pair of 3" midrange drivers, and a 0.75" tweeter. Each of the drivers uses proprietary Metal Matrix Diaphragm (MMD) technology to deliver accurate audio reproduction with low distortion for natural, lifelike sound. A tweeter waveguide provides a wide sweet spot for excellent on-and-off-axis high frequency response. The drivers are magnetically shielded for safe use near video monitors and other electronics. The rear of the cabinet has 5-way binding post terminals for wide compatibility with a variety of amplifiers and sound systems.
| Speaker Type | Passive |
| Amplifier | Recommended Range: 10-150W |
| Frequency Response | 80Hz - 20kHz |
| Crossover | 650Hz, 2.8kHz, 24dB/Oct |
| Impedance | 8 Ohms |
| Enclosure | Black Wood Grain |
| Shielded | Yes |
| Woofer | 2 x 5.25" (130mm) MMD Woofers |
| Midrange | 2 x 3" (75mm) MMD Midrange Drivers |
| Tweeter | 0.75" (19mm) MMD Tweeter |
| Sensitivity | 91dB |
| Connector Type | 5-Way Binding Posts |
| Dimensions (HxWxD) | 7.4 x 23.9 x 9.25" (187 x 606 x 235mm) |
| Weight | 25 lbs (11.4kg) |