Name: Infinity speakers REF 1270
SKU: INF04
Availability: InStock

Description

Key Specifications

Spec	Value
Size	12-inch Crutchfield+2Audio Express+2
Impedance	Switchable: 2 or 4 Ω via SSI switch Crutchfield+2Crutchfield+2
Power Handling (RMS)	275 watts RMS Crutchfield+1
Peak Power Handling	1100 watts peak Crutchfield+1
Frequency Response	~ 25 Hz – 175 Hz Crutchfield+1
Sensitivity	93 dB (2.83 V @ 1 meter) Crutchfield+1
Cone Material	Polypropylene Crutchfield+1
Surround Material	Nitrile rubber (or rubber) Audio Express+1
Basket / Frame	Stamped steel basket Crutchfield+1
Mounting/Top-Mount Depth	~ 6-1/2 inches Crutchfield+1
Cut-out Diameter	Approx. 11-5/16 inches (≈ 11.31″) Crutchfield+2Crutchfield+2
Thiele-Small / Acoustic Parameters:
Free Air Vas	~ 61.2 litres (in 2 Ω mode) Crutchfield+1
Fs (resonant frequency)	~ 31.9 Hz (2 Ω) / ~ 32.4 Hz (4 Ω) Crutchfield
Qts	~ 0.52 (2 Ω) / ~ 0.58 (4 Ω) Crutchfield
Xmax (max excursion)	~ 10.25 mm Crutchfield+1

Sealed box: about 0.75 cubic feet internal volume; gives tighter bass response. Crutchfield+1
Ported box: about 2.5 cubic feet with a 4-inch diameter port that is ~11.7 inches long, tuned to ~30 Hz. Crutchfield+1
Free-air mounting (infinite baffle) is possible, though power handling is reduced (~half) in that configuration. Crutchfield

The SSI (Selectable Smart Impedance) switch is a key feature—it allows configuration flexibility depending on your amplifier setup. Crutchfield+2Audio Express+2
High-roll surround improves suspension of the cone, allowing greater excursion and more cone area, which helps with deeper bass and better control. Audio Express
Cone design proprietary to Infinity, aiming for stiffness and durability. Audio Express+1
Long-excursion design to move more air for deeper bass. Audio Express

While 275 W RMS is decent power, pushing peak power should be done carefully—amplifier matching is important.
For optimal output and sound, enclosure design and tuning (ported vs sealed) will affect performance significantly.
Depth (6.5″) is somewhat large; make sure your enclosure or mounting space can accommodate it.