NEW MODEL 12 “Twin Active Amplified Double Bass Box Sub Car Subwoofer Amp Amplifier 3600W. 2 x 12” WOOFER WITH TWO 40 OZ MAGNET. MAX POWER: 3600 WATTS. FACTORY MATCHING CARPET TRIM. DOUBLE 12" ACTIVE ENCLOSURE.
eBay
Max Power : 800W. 1x Subwoofer Speaker. Bass boost : 0to + 12dB. Low frequency ability of the bass horn, high quality low tone output. Low level input sensitivity : 300mV. High level input sensitivity : 1V.
eBay
In Phase USW12 under seat subwoofer built in amplifier 600watts.
eBay
This 15 inch active subwoofer speaker comes with adjustable low-pass filter between 30Hz and 120Hz. Featuring a built-in 600W amplifier, a phase switch to let the sub acoustically play along in phase with the main speakers, reproducing an excellent deep bass sound and an IN/THRU connection for line-signal-chaining to another subwoofer. .
eBay
Which is unique to the sealed type. Type Shallow powered subwoofer system. Woofer material Pulp. 25cm / 10" Shallow Active. Voice Coil type Copper round wire 4-layers single voice coil. Voice Coil bobbin type Kapton.
eBay
Edge Audio 12" Active Amplified Car Subwoofer Sub Bass Box Enclosure Max Power 900 Watts. Internally there is a ferrite magnet and this forms a powerful motor structure when combined with the dual 2 ohm voice coil.
eBay
In Phase XTB-8A 8" 600W Active Subwoofer with Built-in Class D Amplifier & Bass Remote. Max Power 600W. Bass Remote Included: Easily adjust bass levels from the driver’s seat. Enclosure Type Ported MDF.
eBay
Pioneer amplifiers automatically select the proper input signal mode, either RCA or speaker level. When the receiver is turned on, the amplifier automatically turns on. When connected to an OEM receiver or a receiver without RCA output and utilizing speaker level output, the amp automatically senses the input mode and powers up in sync with the receiver.
eBay