12 subwoofer with dual 4-ohm voice coils. Kevlar® reinforced paper cone. Santoprene surround. hybrid StampCast basket provides strength while minimizing weight and resonance. power range: 150-400 watts RMS (800 watts peak power) frequency response: 27-250 Hz. sensitivity: 86 dB. top-mount depth: 6-3/8". Thissubwoofer features a 10 oz. shielded magnet with 10oz bucking magnet, rolled foam surround and poly laminated cone. This subwoofer is a high end, pro audio transducer optimized for all musical instrument, DJ, car audio and professional applications. 1 Goldwood sound GW-406D shielded 6.5 in. woofer, 60-Watt RMS and 90-Watt maximum, 59 - 6 Singlesub, series voice coil example 2Ω total {Dual subs, parallel voice coil example 1Ω total {Dual subs, parallel-parallel voice coil example 4Ω total {Dual subs, series-parallel voice coil example 1.33Ω total {Triple subs, (single) parallel voice coil example total {Triple subs, series-parallel voice coil example Wemodeled the subwoofer performance using both voice configurations in VituixCAD 2 software. We started with a simple sealed (acoustic suspension) enclosure with a net internal volume of 1.08 cubic feet. Graph 1 shows the output of the subwoofer with 2.83 V (which is 8-watts into a 4-ohm load) applied to the coil. Whileit's possible to bridge a dual voice coil subwoofer, the impedance of each channel will generally be half that of a single voice coil subwoofer. If one voice coil is two ohms and the other is four, then each channel will be a single ohm. This type of wiring isn't ideal for a dual voice coil subwoofer. CompRTshallow-mount 6-3/4" subwoofer with dual 2-ohm voice coils. Item # 206CWRT672 If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks, Read more from Crutchfield writer, Bob B. Kicker CompRT 43CWRT672 - Front. Zoom in for larger view of Kicker CompRT 43CWRT672 - Front Thisreview is from KICKER - CompRT 8" Dual-Voice-Coil 2-Ohms Subwoofer - Black. I would recommend this to a friend. Helpful (3) Unhelpful (0) Report. Comment Show comment (1) Feeble123456789. Rated 5 out of 5 stars. Incredible performance and value. Feeble123456789 | Verified Purchase. Verified Purchase | Theother subwoofer has dual 4 ohm voice coils. The dual voice coil subwoofer can have its coils wired in series to produce an 8 ohm load, or in parallel to produce a 2 ohm load. To complete this fictional example, we have an amplifier that will produce 400 watts into a 4 ohm load and 700 watts into a 2 ohm load. We have a small car and want to BO55.