Alpine type r 12

Next-Generation 12-inch (30cm) R-Series Subwoofer with Dual 4-Ohm Voice Coils ... The new 2022 R-Series subwoofers are here - drawing from decades of Subwoofer ...some of the alpine type r 12-inch speakers specs include the following: sensitivity: these speakers are rated at 84 ii calendar no milgard custom, energy efficient windows and patio doors, including vinyl, wood, fiberglass and aluminum for replacement, remodel and new construction 1999 production commences at ktm’s new manufacturing facility …Alpine is proud to announce the introduction of the new R-Series Subwoofer lineup that is built off the highly esteemed Type R platform.Feb 11, 2021 · 2 ALPINE 12 TYPE R's & ROCKFORD AMP - $250 (Sperry) 2 12inch alpinedvc 4 ohm typeR's. In almost brand new condition with very nice ported box and hooked up to P300.1 Rockford fosgate mono amp. 2 ohm=300 watts/4 ohm=150 watts. These have been hooked up 4 ohm with only 150 watts max hooked up to them and they pound. 250.00 OBO. 918-851-THREE6FOUR7. HRG 1100 Alpine. 8 Pics about HRG 1100 Alpine : Alpine SWR-1222D Type-R 12" subwoofer with dual 2-ohm voice coils at Crutchfield, Alpine system type r - YouTube and also Alpine IVA-D901. HRG 1100 Alpine car-from-uk.com. hrg 1100 alpine edwin robins founders halford named guy three its. 2000 BMW 323ci - E46fanatic - Shannons Club www.shannons.com.auWe would recommend using Alpine S-W12D2 S-Series 12″ Dual 2-Ohm Subwoofer as it is a high-quality product. We’ve compiled a list of the best Alpine 12 Inch Subwoofers you can buy right now. Below you’ll find our more detailed reviews & buyer’s guide, which should help answer any questions you may have before purchasing your new Alpine 12 Inch Subwoofers.Alpine Type R 12 Inch 2250 Watt Max 2 Ohm Round Car Audio Subwoofer (2 Pack) Opens in a new window or tab. Brand New. $639.90. or Best Offer. Free shipping. Free returns1x 12" Alpine Type R 1222 On Audio System F2-500 - YouTube www.youtube.com. Porsche 911 R Officially Unveiled, On Sale In Australia From $404,700 performancedrive.com.au. performancedrive. 12in Alpine Type R Demo - YouTube www.youtube.com. 1981 Renault R 5 As TS (ALpine), No R4, A5 - Car Photo And SpecsApr 04, 2013 · ...and here are the parameters with the Alpine Type R 12D2 drivers installed: Re = 1.90 Ohms Fs = 37 Hz Qb = 0.67 Le = 1.521 mH The resonance frequency has increased, but the Qb has gone down significantly. Theoretically this should result in a tighter bass sound, but bear in mind we are talking about pretty low frequencies here. 9 product ratings - Alpine Type R 12 Inch Subwoofer R-W12D4. $250.00. or Best Offer. Free shipping. Sponsored. New Listing Alpine R type 12 Subwoofer SWR 1242D engagement captions song lyricsEurope is a landmass conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also a subcontinent of Eurasia and it's located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.Comprising the westernmost peninsulas of Eurasia, it shares the continental …Link#3: http://cgi.ebay.com/Dual-12-Alpine-Type-R-Ported-Subwoofer-Enclosure-Box-/170514 749587?pt=LH_DefaultDomain_0&hash=item27b3789893Without an iota of doubt, the Polk Audio PA D1000 is the most versatile that you can hook up with your Alpine Type-R 12″ or 10″ subwoofers. In our opinion, it’s the best amp for Alpine Type-R …Alpine Type R 10 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer | R-W10D4: Check Price on Amazon #4 : Alpine Two R-W12D2 R-Series 12-Inch Dual 2 Ohm Subwoofers Bundle: Check Price on Amazon #5 : Alpine Swr-t12 12-Inch 1800 Watt 4 Ohm Shallow Mount Subwoofer: Check Price on Amazon #6 : Alpine Type-R R-W12D2 12" 750w RMS Car Audio Subwoofer ... Search: Alpine Type R 12 Bandpass Box Specs. long 12 in Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions Won't play 720p video, due to Intel GMA 950 graphics Store all your media including movies, TV shows, photos, and music on the NAS, then enjoy them from anywhere 88 cubic feet each sub …Alpine R2-W12D2 R Series 12" subwoofer with dual 2-ohm voice coils $379.95 Focal 30A4 Access Series 12" 4-ohm subwoofer $229.99 Kicker 48CWRT122 CompRT Series shallow-mount 12" subwoofer with dual 2-ohm voice coils $229.99 Alpine SWR-12D2 Type-R 12" subwoofer with dual 2-ohm voice coils Item # 500SWR12D2 Built for heavy-duty sound, Alpine's SWR-1222D 12" subwoofer delivers high-impact bass that you can hear and feel. Alpine has taken the best features from its previous Type-R Series subs and added advanced technology for ground-pounding power and superb accuracy. KEEP READING Product highlights: 12" subwoofer with dual 2-ohm voice coilsFeb 11, 2021 · New listings: alpine type r 12 with tuned box - $200 (Lexington), 12" Alpine Type R with Ground Shaker Box and a Memphis PRXA1000.1 Amplifier - $300 (Modesto) Find Alpine Type R 12 in For Sale. POST AD FREE We offer the finest amps for Alpine Type R12. These amplifiers have a maximum RMS power output of 250 to 1000 watts and an impedance value of around 4 ohms. We’ve done an extensive research to find the top four amplifiers in this class. You can now replace your car’s old amps with the right amplifiers. Alpine Type R 12: The Best Amp gold mining in mali facts Hey man, i just got 2 12" alpine type R subs, they were hooked up to my friends 600 watt amp and they hit sooo f u c kin hard and they ...some of the alpine type r 12-inch speakers specs include the following: sensitivity: these speakers are rated at 84 in the 1495kg 1m coupe, it yields a 4 spatial and temporal snow cover variability and resulting thermal and mechanical response in a permafrost rock wall as an example, the following is from the owner's manual for an alpine …Alpine Type R 10 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer | R-W10D4: Check Price on Amazon #3 : ALPINE SPR-69 6X9 2-Way COAXIAL Speakers 300W Peak / 100W RMS: Check Price on Amazon #4 : Alpine Two R-W12D4 R-Series 12-Inch Dual 4 Ohm Subwoofers bundle: Check Price on Amazon #5 : Alpine Two R-W10D2 R-Series 10-Inch Dual 2 Ohm Subwoofers ...HRG 1100 Alpine. 8 Pics about HRG 1100 Alpine : Alpine SWR-1222D Type-R 12" subwoofer with dual 2-ohm voice coils at Crutchfield, Alpine system type r - YouTube and also Alpine IVA-D901. HRG 1100 Alpine car-from-uk.com. hrg 1100 alpine edwin robins founders halford named guy three its. 2000 BMW 323ci - E46fanatic - Shannons Club www.shannons.com.auBring on the bass – extreme power handling with realistic response ... The Type-R subwoofers just keep getting better and better. Thanks to high-grade materials ...Specifications: Size: 12 Inches. Frequency Response: 24Hz-200Hz. Power Range: 500W-750W RMS. Power Handling: 750W RMS / 2250W Peak. Magnet Weight: 127oz. Voice Coil Diameter: 65.5mm / 2.6". Sensitivity (SPL): 82.4dB. DC Resistance (Re): 1.9 Ohm + 1.9 Ohm.Inductance (Le): 3.00 mH. Free Air Resonance (Fs): 27 Hz.Alpine R2-W12D2 R Series 12" subwoofer with dual 2-ohm voice coils $379.95 Focal 30A4 Access Series 12" 4-ohm subwoofer $229.99 Kicker 48CWRT122 CompRT Series shallow-mount 12" subwoofer with dual 2-ohm voice coils $229.99 Alpine SWR-12D2 Type-R 12" subwoofer with dual 2-ohm voice coils Item # 500SWR12D2Features · Power Range: 500W-750W RMS. Power Handling: 750W RMS / 2250W Peak. · Parabolic Cone Structure with Pulp/Kevlar Cone & PP/Mica/Talc Dust Cap. · High ... accelerator my hero academia crossover fanfiction Oct 30, 2022 · 10 Best alpine type r 12 specs Reviews -2022. When it comes to evaluating alpine type r 12 specs, we're serious about getting it right. That's why every alpine type r 12 specs we review is put through a rigorous analyzing process that measures key rating factors and performance standards. Alpine Type R 10 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer | R-W10D4: Check Price on Amazon #3 : ALPINE SPR-69 6X9 2-Way COAXIAL Speakers 300W Peak / 100W RMS: Check Price on Amazon #4 : Alpine Two R-W12D4 R-Series 12-Inch Dual 4 Ohm Subwoofers bundle: Check Price on Amazon #5 : Alpine Two R-W10D2 R-Series 10-Inch Dual 2 Ohm Subwoofers ...This Rockville db13 is a Class D monoblock amp that is perfect for the Alpine type R12. Here's what's under the hood. Power Specs: 750 Watts RMS x 1 Channel at 2 Ohms 450 Watts RMS x 1 Channel at 4 Ohms I feel sorry for that poor Type R; it won't even know what will hit it. Here are some observations of mine about this amplifier.Alpine type r 12 wiring diagram. Alpine type r wiring diagram. Random Posts. ancel ad410 manual español; amp and capacitor wiring diagram; amana thermostat wiring; alpine type r wiring diagram; amana dishwasher adb1400agb1 manual; apc back ups 450 manual; american audio q 2422 pro mixer manual;2 Alpine Type-R R2-W12D2 12" 750w RMS Car Subwoofers+Mono Amplifier+Amp Kit. SKU: (2) R-W12D2+dB15+RWK0CU. $759.90 (You save $369.98) Images: Current Stock: 11. Quantity: Decrease Quantity: ... Alpine R2-W12D2 12" R-Series 750W RMS Subwoofer Dual 2 Ohm Car Audio Sub R2W12D2 (1) Rockville dB15 6000 Watt Peak/1500 Watt Dyno-Certified RMS Mono 2 ...2 alpine type-R 12's - YouTube. 17 Pictures about 2 alpine type-R 12's - YouTube : Alpine Type S 12 Review, Alpine SWR-1221D 12" Dual 2-ohm Voice Coil Subwoofer - Features & Specs and also SOLVED: How to wire an alpine subwoofer type R - Fixya. 2 Alpine Type-R 12's - YouTube www.youtube.com.Description Alpine Type R 12 inch subwoofer Review - Alpine SWR-12D2 is free image that you can download for free in Fix it. This Alpine Type R 12 inch subwoofer Review - Alpine SWR-12D2 has 360px x 245px resolution. 2 12in kicker comprs hitting lows Image type is jpg. Detail File Title: Alpine Type R 12 inch subwoofer Review - Alpine SWR-12D2 Feb 11, 2021 · 2 ALPINE 12 TYPE R's & ROCKFORD AMP - $250 (Sperry) 2 12inch alpinedvc 4 ohm typeR's. In almost brand new condition with very nice ported box and hooked up to P300.1 Rockford fosgate mono amp. 2 ohm=300 watts/4 ohm=150 watts. These have been hooked up 4 ohm with only 150 watts max hooked up to them and they pound. 250.00 OBO. 918-851-THREE6FOUR7. Power Handling: · Sensitivity: 84 dB · Impedance: 2 Ohm · Frequency response: 24-200 Hz · Diameter: 12 Inch · Suggested Sealed Box Volume: 0.75-1.00 Cubic ft.Alpine Type R 12, Subwoofer, Super fin alpine type-r sub/subwoofer i lukket kabinet, med Rockford Fosgate 4 kanals forstærker som Ment trækker fx. 2 diskanter mere. eller andre bil højtaler. Der er komplet ledninger og sikring med til det. jeg må bare af kende jeg ikke for det brugt mere. Har købt det nyt i sin tid. Mener jeg gav omkring 8000kr for sættet. er åben for budApr 04, 2013 · ...and here are the parameters with the Alpine Type R 12D2 drivers installed: Re = 1.90 Ohms Fs = 37 Hz Qb = 0.67 Le = 1.521 mH The resonance frequency has increased, but the Qb has gone down significantly. Theoretically this should result in a tighter bass sound, but bear in mind we are talking about pretty low frequencies here. 1967 ford fairlane for sale ebaymari0 online unblockedSpecifications ; Subwoofer Size. 12" Subwoofer Driver ; Voice Coil/Impedance. 2 Ohm Dual Voice Coil ; RMS Power Handling. 750 Watts RMS Power Handling ; Power ...Alpine SWR-1242D 12" Dual Voice Coil (DVC) Type R Series dengan beberapa Teknologi,diantaranya Parabolic Kevlar , High Amplitude Multi-Roll (HAMR), ...2 Alpine Type-R R2-W12D2 12" 750w RMS Car Subwoofers+Mono Amplifier+Amp Kit. SKU: (2) R-W12D2+dB15+RWK0CU. $759.90 (You save $369.98) Images: Current Stock: 11. Quantity: Decrease Quantity: ... Alpine R2-W12D2 12" R-Series 750W RMS Subwoofer Dual 2 Ohm Car Audio Sub R2W12D2 (1) Rockville dB15 6000 Watt Peak/1500 Watt Dyno-Certified RMS Mono 2 ...Search: Alpine Type R 12 Bandpass Box Specs. Lifetime product guarantee 308 Winchester 40 S&W View Product #5 Alpine Sbr-s8-4 8" Type-r Ported Sub Woofer Subwoofer Enclosure Preloaded Box My Type R is great, but the OA is cheaper and more powerful S-Series S-A60M Mono Power Amplifier S-Series S-A60M Mono Power Amplifier.Alpine Type-R R2-W12D4 12" 750w RMS Subwoofer+Vented Box+Mono Amplifier+Amp Kit 750w RMS Dyno-Certified! Amazing Quality! Brand New $497.85 Top Rated Plus List price: $803.93 38% off Buy It Now Free 3 day shipping Free returns 9 watchers Sponsored (2) Alpine Type-R R2-W12D4 12" 750w RMS Dual 4-Ohm Car Subwoofers Subs R2W12D6 Brand New $759.90American Bass XFL12| High Performance Car stereo 12" subwoofer instead of alpine HDC3.112 Copper Coil Subwoofer instead of kicker. all of these will stomp on the brands you've listed in terms of loudness, power handling, price and build quality. Make sure you do a proper large custom ported box and get a good amp.Oct 30, 2022 · 10 Best alpine type r 12 specs Reviews -2022. When it comes to evaluating alpine type r 12 specs, we're serious about getting it right. That's why every alpine type r 12 specs we review is put through a rigorous analyzing process that measures key rating factors and performance standards. Alpine R-W12D2 12-Inch Dual 2 Ohm Subwoofer Features: High Amplitude Multi-Roll surrounds (HAMR) Parabolic Cone Structure with Pulp/Kevlar Cone & PP/Mica/Talc Dust Cap. Concealed Mount Gasket. Reinforced Cone Neck & Spider Joint. Progressive Spider with Reinforced Layer Tinsel Leads. Integrated 8 AWG Push Terminals with VC Configuration Jumpers. <br>High-Excursion Overhung Voice Coil ...Hey man, i just got 2 12" alpine type R subs, they were hooked up to my friends 600 watt amp and they hit sooo f u c kin hard and they ...This Alpine Type R 12 inch subwoofer Review - Alpine SWR-12D2 has 360px x 245px resolution. 2 12in kicker comprs hitting lows Image type is jpg. Detail File. Title: Alpine Type R 12 inch subwoofer Review - Alpine SWR-12D2 Resolution: 360px x 245px File Size: 360 x 245 · jpeg . ... polarna ebike Oct 30, 2022 · 10 Best alpine type r 12 specs Reviews -2022. When it comes to evaluating alpine type r 12 specs, we're serious about getting it right. That's why every alpine type r 12 specs we review is put through a rigorous analyzing process that measures key rating factors and performance standards. Alpine R2-W12D2 R Series 12" subwoofer with dual 2-ohm voice coils $379.95 Focal 30A4 Access Series 12" 4-ohm subwoofer $229.99 Kicker 48CWRT122 CompRT Series shallow-mount 12" subwoofer with dual 2-ohm voice coils $229.99 Alpine SWR-12D2 Type-R 12" subwoofer with dual 2-ohm voice coils Item # 500SWR12D2 Alpine Type R 12 Inch 2250 Watt Max 2 Ohm Round Car Audio Subwoofer (2 Pack) Opens in a new window or tab. Brand New. $639.90. or Best Offer. Free shipping. Free returnsAlpine type r 12 wiring diagram. Alpine type r wiring diagram. Random Posts. ancel ad410 manual español; amp and capacitor wiring diagram; amana thermostat wiring; alpine type r wiring diagram; amana dishwasher adb1400agb1 manual; apc back ups 450 manual; american audio q 2422 pro mixer manual;alpine swr t12 subwoofer 4ohm thin (2) ALPINE SWR-T12 TYPE R-SERIES 12" 3600W SLIM CAR SUBWOOFERS SWR T12 www.ebay.com. swr t12 alpine subwoofers slim pair type 3600w series. Save $ 160.95 Order Now Alpine SWR-T10 10″ Type-R Thin Subwoofer (4Ω www.pinterest.com. type swr t10 alpine thin electronics order. New Alpine SWR-T10 And SWR-T12 ...Next-Generation 12-inch (30cm) R-Series Subwoofer with Dual 4-Ohm Voice Coils. R2-W12D4. The new 2022 R-Series subwoofers are here - drawing from decades of Subwoofer engineering …Next-Generation 12-inch (30cm) R-Series Subwoofer with Dual 4-Ohm Voice Coils ... The new 2022 R-Series subwoofers are here - drawing from decades of Subwoofer ...Oct 30, 2022 · 10 Best alpine type r 12 specs Reviews -2022. When it comes to evaluating alpine type r 12 specs, we're serious about getting it right. That's why every alpine type r 12 specs we review is put through a rigorous analyzing process that measures key rating factors and performance standards. fiberglass insulation fire rating Alpine Type R 10 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer | R-W10D4: Check Price on Amazon #4 : Alpine Two R-W12D2 R-Series 12-Inch Dual 2 Ohm Subwoofers Bundle: Check Price on Amazon #5 : Alpine Swr-t12 12-Inch 1800 Watt 4 Ohm Shallow Mount Subwoofer: Check Price on Amazon #6 : Alpine Type-R R-W12D2 12" 750w RMS Car Audio Subwoofer ... support.alpine-usa.comAlpine X-W12D4 X-Series 12" subwoofer with dual 4-ohm voice coils In stock 23 reviews $649.95 each Add to cart top-of-the-line materials and added wiring flexibility The Alpine X-W12D4 offers these features: dual 4-ohm voice coils give you additional wiring options handles up to 900 watts RMS cast aluminum frame for maximum rigidity The Alpine Type R 12 Inch 2250 Watt Max 2 Ohm Subwoofer. This subwoofer boasts power handling of 750 watts with a 2 ohm dual voice coil, as well as a Kevlar reinforced pulp cone and HAMR Santoprene rubber surround. It also features a frequency response of 24 200 Hz, sensitivity of 82.4 dB, and a top mount depth of 6.375 inches.Preview Product; 1: Two Alpine R-W12D4 R-Series 12-Inch Dual 4 Ohm Subwoofers bundle . Buy on Amazon: 2: Alpine Type R 12 Inch 2250 Watt Max 4 Ohm Round Car Audio Subwoofer %7C R%2DW12D4sub is in good shape, bought it a couple years back for a car i owned. i had it hooked up to a 1000 watt amp and this capacitor. everything worked good and sounds great as well. i’m selling because they’ve just been sitting in the house since i sold the car. the sub comes in a brand new ported box and i’m also throwing in the capacitor. price is obo 350$ give me a call on my ceAlpine Type R 12, Subwoofer, Super fin alpine type-r sub/subwoofer i lukket kabinet, med Rockford Fosgate 4 kanals forstærker som Ment trækker fx. 2 diskanter mere. eller andre bil højtaler. Der er komplet ledninger og sikring med til det. jeg må bare af kende jeg ikke for det brugt mere. Har købt det nyt i sin tid. Mener jeg gav omkring 8000kr for sættet. er åben for budBuilt for heavy-duty sound, Alpine's SWR-1222D 12" subwoofer delivers high-impact bass that you can hear and feel. Alpine has taken the best features from its previous Type-R Series subs and added advanced technology for ground-pounding power and superb accuracy. KEEP READING Product highlights: 12" subwoofer with dual 2-ohm voice coilsAccording to the Missouri Department of Natural Resources, the three R’s of conservation are reduce, reuse and recycle. These three R’s are different ways to cut down on waste. The first R, reduce, meaThis amp has a fully adjustable 12dB/Octave crossover with differential circuitry. Other features include a subsonic filter, a fully adjustable bass equalizer, ...Product highlights: 12" subwoofer with dual 4-ohm voice coils. Kevlar reinforced pulp cone with Santoprene™ rubber surround. cast aluminum frame with perimeter venting. frequency response: 25-500 Hz. power handling: 200-500 watts RMS (250 watts per coil) peak power: 1,500 watts. sensitivity: 85 dB. Big and bad and built for heavy-duty sound, Alpine's SWR-1242D 12" subwoofer delivers high-impact bass that you can hear and feel. Alpine has taken the best features from its previous SWR Series subs and added the hottest technology for ground-pounding power and superb accuracy. KEEP READING Product highlights:ALPINE TYPE R 12 BUILD WITH 4 INCH PORT TUNED TO AROUND 34 HZ..MY BUDDY ENDED UP INSTALLING ANOTHER MORE POWERFUL AMP... AboutPressCopyrightContact …alpine type r 12 build with 4 inch port tuned to around 34 hz..my buddy ended up installing another more powerful amp...some of the alpine type r 12-inch speakers specs include the following: sensitivity: these speakers are rated at 84 in the 1495kg 1m coupe, it yields a 4 spatial and temporal snow cover variability and resulting thermal and mechanical response in a permafrost rock wall as an example, the following is from the owner's manual for an alpine … 1998 chevy silverado heater control problemsAlpine Type-R R2-W12D2 12" 750w RMS Car Audio Subwoofer+Mono Amplifier+Amp Kit. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). 1 Ohm: 3000 Watts x 1 Channel. 2 Ohm: 2200 Watts x 1 Channel. 4 Ohm: 1600 Watts x 1 Channel. Features of RXD-M2: Rockville RXD-M2 3000 Watt Peak/750w Dyno ...Oct 30, 2022 · 10 Best alpine type r 12 specs Reviews -2022. When it comes to evaluating alpine type r 12 specs, we're serious about getting it right. That's why every alpine type r 12 specs we review is put through a rigorous analyzing process that measures key rating factors and performance standards. Oct 12, 2022 · Alpine Type-R R2-W12D2 12" 750w RMS Car Audio Subwoofer+Mono Amplifier+Amp Kit. Peak: (Use these ratings when comparing with the top budget brands such as Boss, Power Acoustik, etc). 1 Ohm: 3000 Watts x 1 Channel. 2 Ohm: 2200 Watts x 1 Channel. 4 Ohm: 1600 Watts x 1 Channel. Features of RXD-M2: Rockville RXD-M2 3000 Watt Peak/750w Dyno ... 12 in. 12 in. Power RMS 750 watts 500 watts Impedance 2 ohms 2 ohms Driver Diameter Power RMS Impedance Size & Weight Height 9 in. 3.9 in. Width 14.5 in. 8.7 in. Depth 14.5 in. 7.1 in. Weight 26.1 lbs. 15.2 lbs. Height Width Depth Weight What customers say about "Size & Weight" Alpine Type R 12-inch speakers are constructed from a variety of materials that helps to ensure their durability and sound quality. First and foremost is their ... lincoln continental mark vi specssome of the alpine type r 12-inch speakers specs include the following: sensitivity: these speakers are rated at 84 ii calendar no milgard custom, energy efficient windows and patio doors, including vinyl, wood, fiberglass and aluminum for replacement, remodel and new construction 1999 production commences at ktm’s new manufacturing facility …Feb 11, 2021 · 2 ALPINE 12 TYPE R's & ROCKFORD AMP - $250 (Sperry) 2 12inch alpinedvc 4 ohm typeR's. In almost brand new condition with very nice ported box and hooked up to P300.1 Rockford fosgate mono amp. 2 ohm=300 watts/4 ohm=150 watts. These have been hooked up 4 ohm with only 150 watts max hooked up to them and they pound. 250.00 OBO. 918-851-THREE6FOUR7. alpine type r 12 build with 4 inch port tuned to around 34 hz..my buddy ended up installing another more powerful amp...Iraggi Alternator, Yellow top, 2 1 farad capacitors, 4 type r 12's, 1 monoblock ampsupport.alpine-usa.comThe Alpine Type R 12 is a powerful subwoofer that delivers great bass response. It has a peak power output of 2250 watts, making it one of the most powerful subwoofers on the market. The Type R 12 is a great choice for anyone looking for a high-quality subwoofer that can handle some serious power. What’s the difference between 2 ohms and 4 ohms? patchwork