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Infinity Primus Theater Pack II

4 compact satellite speakers and 1 center channel speaker

Item # 108PT5P

Need help?
Contact our Virginia-based experts.
Discontinued item

Item # 108PT5P

Need help?
Contact our Virginia-based experts.

About the Infinity Primus Theater Pack II

This five-piece speaker package from Infinity includes four identical satellite speakers and a matching center channel speaker. It reproduces movie soundtracks with the kind of precision and clarity that may just surprise you the first time you hear it. The key is Infinity's special M.M.D. (Metal Matrix Diaphragm) speaker material, which uses a stiff aluminum core to minimize distortion. This system does a great job with multichannel music, too, like SACD and DVD-Audio. Just add a powered sub for full 5.1 surround sound.

What's in the box:

  • 4 Primus HCS Satellite speakers
  • 1 Primus HCS Center speaker
  • 4 Satellite speaker grilles
  • 1 Center speaker grille
  • 20 Self-adhesive rubber feet
  • Owner's Guide
  • Warranty sheet

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More details on the Infinity Primus Theater Pack II

Stacey B.

Features & specs

Enclosure Acoustic susp (ctr)
Pieces in System 5
Color Black
Tweeter Dome
Midrange size (inches) ---
Woofer size (inches) 4
Woofer Composition M.M.D.
Woofer Surround Rubber
Impedance (Ohms) 8
Connector Type 5-way post
Mounting Bracket Included Yes
Recommended Stand Height (inches) 28
Parts Warranty 5 Years
Labor Warranty 5 Years
RMS Power Range (watts) 15-100
Subwoofer RMS Power (watts) ---
Main Speakers (inches) 9-5/8H x 5-15/16W x 7-1/16D
Center Speaker (inches) 5-15/16H x 14-1/4W x 6-15/16D
Surround Speakers (inches) 9-5/8H x 5-15/16W x 7-1/16D
Subwoofer (inches) No Subwoofer

Product Research


Overview: The Infinity Primus Theater Pack consists of four identical 2-way satellite speakers with a 4" woofer and 3/4" tweeter, plus a center speaker with dual 4" woofers and a 3/4" tweeter. You can add an optional Infinity PS-series subwoofer (see items 108PS8, 108PS10 or 108PS12) for a complete 5.1-channel home theater speaker system. To complete a 6.1- or 7.1-channel surround speaker system, you can add one or two additional matching satellite speakers (item 108P140).

Metal Matrix Diaphragm (M.M.D.): All of the speakers in the Primus Series feature Infinity's proprietary Metal Matrix Diaphragm (M.M.D.) drivers. Derived from the C.M.M.D. material used in Infinity's flagship Prelude drivers, M.M.D. features a stiff aluminum core, anodized on both sides for increased strength and rigidity. M.M.D. transducers deliver crystal-clear, distortion-free sound from dynamic digital sources, even at high listening levels.

Woofers: The 4" M.M.D. cone woofer conducts sound faster than paper, polypropylene and Kevlar found in many similarly-priced speakers, pushing unwanted resonances beyond the operating range of the transducer. For a smoother response and improved durability, the woofer uses a rubber surround.

Tweeters: The speaker utilizes a 3/4" M.M.D. dome tweeter and waveguide to deliver a wider, more even, high-frequency response.

Enclosures: The satellite speakers are housed in bass reflex enclosures with front-firing ports. The center channel speaker is an acoustic suspension enclosure.

5-Way Binding Posts: The gold-plated 5-way binding posts will accept pin connectors, spade connectors, banana plugs, dual banana plugs and bare wire. Note: Plastic inserts must first be removed from the speaker terminals before connecting banana plugs or dual banana plugs.

Wall Mounting: The Primus satellite speakers are designed to mount directly to a wall via the two keyholes on the back. Two rubber "bumpers" at the bottom of the back panel provide a non-scratch surface for walls as well as absorb vibrations from the speaker. In addition, there is a 1/4"-20 threaded insert (covered by a rubber plug) located on the back panel for use with third-party speaker brackets/stands. Note: The satellite speakers weigh 7 pounds each, therefore proper mounting of the speaker using weight-appropriate brackets and hardware mounted to wall studs is required.

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