Year / Model Reviewed: 2006 Infinity Kappa Perfect 12.1
Strengths: incredibly deep CLEAN bass at any volume
Weaknesses: none so far
Summary: This subwoofer is AMAZING, you can throw everything you've got at it (including the kitchen sink) and it just begs for more, provides deep clean bass. I have friends with dual 12 inch setups with ported boxes and they can't come close to the sound my 1 12 in a sealed enclosure pumps out.
Strengths: The name speaks for itself........Perfect
Summary: All I have to say is simply amazing! I have owned ALOT of subs in my time from 10" to 15", single to triple and all in all this sub is "perfect"! After finally getting it into an encloser that it desires, this sub day in day out blows my mind in clarity, percision, and quality! System entails as follows...
Alpine CDA-9831 at the helm
Infinty Perfect 12.1
Strengths: Perfect music reproduction.
Extended low end response.
Large x max
Weaknesses: Absolutely none. Be confident you are making a smart purchase. This is a great driver.
Summary: This is a very high quality subwoofer. I have it in a 1.9 cubic ft slot vented enclosure running off of an mtx 501 2 channel amplifier briged to 1 channel. (and an external subsonic filter) The amp puts out 400 watts rms. This sub will play very low frequencies, but is also very tight. The suspension is tight enough for vented enclosures, but is also loose enough for sealed enclosures. The driver makes absolutley no noise during operation. It is well constructed. If used improperly and you allow it to flex beyond it's limits you will cause damage to the spider/voice coil. Use a subsonic filter when the driver is installed in a vented enclosure. This sub is intended for dead on music accuracy. Do not expect to compete in spl competions with this driver. It was not built or intended to be used in this application. Be smart and follow the instuctions set forth by the manufacturer. You will be happy with your purchase.