Infinity Primus P163

The Infinity Primus P163 has an impedance of 8 ohms, making it highly compatible with almost any standard home theater receiver or stereo amplifier. It has a recommended amplifier power of 10 to 100 watts. This makes it a perfect entry-level audiophile speaker that won't strain budget-friendly AVRs from brands like Yamaha or Denon.

The P163 utilizes proprietary Metal Matrix Diaphragm (MMD) drivers, which are designed to reduce resonance and distortion. It is a two-way speaker design, not three-way, featuring a 3.5-inch midrange/woofer alongside a 1/2-inch MMD tweeter. This technology provides incredibly crisp highs and clear dialogue for its price bracket.

Yes, the P163 is incredibly versatile and functions excellently as either front left/right speakers or rear surround speakers in a home theater setup. Because it is part of the classic Primus series, it timbre-matches perfectly with the Primus PC251 center channel and PS8 subwoofer. Many home theater enthusiasts buy multiple pairs of P163s to build a cohesive 5.1 system.

Because the P163 is a bookshelf speaker with a relatively small 3.5-inch woofer, it struggles to reproduce frequencies below 70Hz. If you listen to bass-heavy music or watch action movies with explosive sound effects, adding a dedicated subwoofer is highly recommended. Without a sub, the sound will be very crisp but physically lack deep, rumbling bass.