Infinity Primus 1270

Infinity Primus 1270

R1,049.00

General Features:
12″ 4 ohm Primus Series Subwoofer
Power Handling:
Peak: 1200 watts
RMS: 300 watts
Polypropylene Cone
Rubber Surround
Stamped Steel Frame
Push Terminals
2″ Voice Coil
Top-mount depth: 5-15/16″
Frequency Response: 35 – 200 Hz
Sensitivity: 91 dB
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1-year Manufacturer’s Warranty

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Description

Features & specs

Size: 12 -inch

Impedance: 4 ohms

Cone Material: Polypropylene

Surround Material: Rubber

Ideal Sealed Box Volume (cubic feet): 1.4

Ideal Ported Box Volume (cubic feet): 1.6

Port diameter (inches): 2.95

Port length (inches): 4

Free-Air: Yes

Dual Voice Coil: No

Sensitivity: 91 dB at 2.83 volts

Frequency Response: 35 – 200 Hz

Max RMS Power Handling: 300

Peak Power Handling (Watts): 1200

Top Mount Depth (inches): 5 15/16

Bottom Mount Depth (inches): 6 7/16

Cutout Diameter or Length (inches): 10 15/16

Vas (liters): 75.7

Fs (Hz): 29.7

Qts: 0.49

Xmax (millimeters): 11.35

Product Research
Enclosure Recommendations:
• Sealed Box Volume: 1.4 ft³; a sealed enclosure design gives the smoothest response with increased energy at the lowest frequencies
• Ported Box Volume: 1.6 ft³ with one 2.95″ diameter x 4″ long port (tuned to 34 Hz); Ported (or vented) enclosures typically provide better overall efficiency than sealed, maximizing bass output for a given amplifier
• Free-Air: The woofer can also be mounted in free air to a baffle board (infinite baffle, no enclosure). When mounted in free air, the power handling is reduced by half (to 150 watts RMS).
• Band-Pass: Infinity also recommends a prefabricated band-pass enclosure, but no volume specifications are listed in the manual. Band-pass enclosures often provide the most output available from any amplifier and subwoofer combination, but at the expense of sonic accuracy.

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