INFINITY SPEAKERS ALPHA 121W

Name: INFINITY SPEAKERS ALPHA 121W
Brand: CARMORE
SKU: INF17
Price: 7990 INR
Availability: InStock
Rating: 5.00 (1 reviews)

Description

Parameter	Spec / Feature
Model	Infinity Alpha 121W (12″ single-voice-coil subwoofer) Price History+3Ubuy India+3Amazon India+3
Nominal Impedance	4 Ω Ubuy India+2Amazon India+2
RMS Power Handling	~ 250 Watts RMS Ubuy India+2Amazon India+2
Peak Power Handling	~ 1,800 Watts Peak Ubuy India+2Walmart.com+2
Frequency Response	~ 35 Hz – 200 Hz Walmart.com+2Ubuy India+2
Sensitivity	~ 89-90 dB (2.83V / 1m) Amazon India+2Walmart.com+2
Woofer Size / Mount Type	12-inch, shallow-mount design (fits tighter spaces) Ubuy India+2Walmart.com+2
Enclosure Compatibility	Works with both sealed or ported enclosures Ubuy India+2Desertcart+2
Other Noted Features	Polypropylene cone + rubber surround for durability; marketed as “accurate bass” and somewhat “shallow” to suit tighter mounting depth. Ubuy India+2Desertcart+2

With 250 W RMS, this subwoofer is mid-powered; it can produce strong bass without needing a huge amplifier, but to get the best performance you’ll want an amp that can deliver that RMS well (not just peak).
The 1,800 W peak number is more for short bursts; in sustained usage you’ll be limited by the RMS rating, thermal handling, excursion limits, etc.
The low end of ~35 Hz is decent; the sub can reproduce fairly deep bass. However, real-world output at those frequencies depends heavily on the enclosure, power supply, and how well the sub is mounted.
The shallow-mount aspect is useful when there is limited depth available (trunk, underfloor, etc.). If installed in a deep enclosure, you may get little more output or headroom, but it’s especially helpful for tight spaces.
Sensitivity of ~89-90 dB is good but not “high”; it means you’ll need decent power to push it loud without distortion. Weak head units may not be enough.

Ensure the amplifier you pair with it can really supply ~250 W RMS into 4 Ω continuously, with good power rails and cooling. Undersized amps will distort or limit performance.
The enclosure matters a lot: sealed vs ported will change character — sealed will give tighter, punchier bass; ported will give more output in the mid-bass / lower frequencies but require more space and careful port tuning.
Mounting depth may be shallow, but check the exact depth clearance in your car. Even shallow subs need enough “wiggle room” for cone/surround excursion.
With high peak power, mechanical stress / cone/surround durability may be a factor if you drive it hard often. Also thermal limits could be reached if ventilation is poor.
Often packaging / marketing exaggerate “peak” or “max” numbers more than RMS. Real output will be closer to what the amp and enclosure allow than what the “peak” spec suggests.