About the Infinity Primus C25
The unsung hero of any home theater speaker system is the center channel. Directional special effects are impressive, but it's the center channel that reproduces the dialogue and anchors the on-screen sound to your television's picture. Infinity's Primus C25 center channel speaker includes a 3/4" tweeter for detailed highs and dual 5-1/4" woofers for solid, realistic mids essential for reproducing the human voice. All the drivers are made from Infinity's exclusive Metal Matrix Diaphragm (M.M.D.) material, which outperforms other driver materials in this price range. M.M.D. features a stiff aluminum core that enables the C25 to produce exceptionally clear and accurate sound.
The C25 is voice-matched to all the speakers in the Primus line. Team it up with the Primus 250 or Primus 360 towers for an impressive front soundstage in a large-room home theater setup. Or match it to the Primus 150 or Primus 160 bookshelf models for convincing home theater in smaller rooms.
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Product highlights:
- video-shielded
- acoustic suspension
- frequency response 80-20,000 Hz (±3dB)
- 8-ohm impedance
- sensitivity 90 dB
- handles up to 150 watts
- black woodgrain vinyl finish
- 5-way binding posts
- 17-1/2"W x 7-7/16"H x 9-3/4"D
- warranty: 5 years
- Our 60-day money-back guarantee
- MFR # PRIMUSC25BK
What's in the box:
Infinity Primus C25 owner's manual
- Black center channel speaker with removable black grille
- 4 Self-adhesive rubber feet
- Owner's Guide
- Warranty sheet
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More details on the Infinity Primus C25

Features & specs
Enclosure | Acoustic Suspension | |
Color | Black | |
Tweeter | Dome | |
Midrange size (inches) | N/A | |
Woofer size (inches) | 5-1/4 | |
Connector Type | 5-way post | |
Power Range | 10-150 | |
Sensitivity | 90 dB | |
Impedance (Ohms) | 8 | |
Frequency Response | 80-20k Hz | |
Height (inches) | --- | |
Width (inches) | --- | |
Depth (inches) | --- | |
Weight | --- | |
Parts Warranty | 5 Years | |
Labor Warranty | 5 Years |
Product Research
Features
Metal Matrix Diaphragm (M.M.D.): 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 dual 5-1/4" M.M.D. cone woofers offer extremely accurate midrange response for cleaner, more realistic sound. For a smoother response and improved durability, the woofers use rubber surrounds.
Tweeter: The speaker has a 3/4" M.M.D. dome tweeter that offers superior stiffness and damping compared to traditional metal domes.
5-Way Binding Posts: The 5-way binding posts will accept bare wire, pin connectors, spade connectors, banana plugs, and dual banana plugs.
Crossover: The crossover is a 2-way 4th order (24dB/octave) at 3000Hz.
Matching System: The C25 is voice-matched to all the speakers in the Primus line, so a complete matching system can be built.
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