Showing posts with label 4 ohm. Show all posts
Showing posts with label 4 ohm. Show all posts

Rockford Fosgate T212D4 Power Stage 2 12" subwoofer with dual 4-ohm voice coils Review

Rockford Fosgate T212D4 Power Stage 2 12 subwoofer with dual 4-ohm voice coils
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this is probably the most badass subwoofer i have ever seen. it is incredibly powerful. i have one in my 2000 honda civic, and it hits harder than my friend's 2 15" P3 subwoofers in his jeep. i highly recommend this sub but also you will need a badass amplifier to go with it. a t1500-1bdCP would push it really hard with 1-2 ohms.

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12" subwoofer with dual 4-ohm voice coils * aluminum parabolic woofer cone with rubber surround * cast aluminum basket * power range: 150-1,000 watts RMS (500 watts per coil) * peak power handling: 2,000 watts * frequency response: 29-250 Hz * sensitivity: 85 dB * top mount depth: 9" * ported box volume: 1.5-2.5 cubic feet * Recommended Q-Logic Box Type: 3 * warranty: 1 year

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Rockford Fosgate Punch 500-Watt Mono Amplifier Review

Rockford Fosgate Punch 500-Watt Mono Amplifier
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Purchased from Amazon, professionally installed in a 2004 GMC Yukon. Driving a Rockford Fosgate Punch P3 P3L-1X12 Single 12-Inch Pre-Loaded Enclosure, also purchased from Amazon.
Plenty of power, clean/clear/accurate sound. It even looks good. Happy customer here. I was concerned about it being powerful enough; my concerns evaporated when I first heard it.

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With its super efficient Class-BD circuit topology, the P500-1bd will drop some serious BASS! Due to its dedicated low frequency response, this amplifier is optimized for mid-bass speakers or subwoofers only. No need to worry because its 1-ohm capability will drive a pair of 4-ohm DVC subwoofers or quad-configuration of 2-ohm DVC subwoofers with ease.

P500-1bd Features
12dB/octave crossover
4 Gauge power/ground terminals
Audiophile grade speaker connections
Infrasonic filter
MOSFET output stage
MOSFET power supply
RCA pass-thru
Top Mounted LED Indicators

CEA-2006 Power ratings on Rockford Fosgate amplifiers conform to CEA-2006 industry standards. These guidelines mean your amplifier's output power ratings are REAL POWER numbers, not inflated marketing ratings.
Class bd Rockford Fosgate bd topology is a revolutionary patented design, integrating a technology that is more efficient than typical class AB and has lower distortion than class D designs. POWER bd amplifiers are 75-80% efficient vs. 20-60% efficient class ab amplifiers. What does that mean? More power from your amplifier with less drain on your vehicles electrical and charging system.
Differential Inputs Differential input circuitry measures the voltage of both the (+) and (-) input signal. The circuitry subtracts the voltage common to both conductors (noise) resulting in only the clean signal. This allows only clean signal to enter the amplifier.
DSM DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature.
Dynamic Thermal Management Heat is often inefficiently dissipated across a heatsink causing "hot spots". Rockford Fosgate engineers have developed an award winning cooling design called DTM. This patent pending design seamlessly manages the output of power supply temperatures, while evenly distributing the excess heat across the entire amplifier.
MEHSA3 MEHSA3 (Maximum Efficiency Heat Sink Application--gen. 3) reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span.
NOMAD NOMAD (Non Multiplying Advanced Decision) is a "real time" analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances.
Punch EQ2 In the early 70's, Jim Fosgate studied the acoustical properties of automobiles. Utilizing a real-time analyzer and pink noise, he would graph out the acoustical characteristics of each car he tested. Jim discovered three problems that were common to all cars: a midbass hump between 100-275Hz, a steep roll-off of high frequencies from 2kHz up to 20kHz, and reduced bass response below 50Hz.
The Punch EQ on-board equalization circuit helps correct for these acoustical deficiencies in the listening environment. When set to Low-Pass(LP) operation, it becomes a variable Bass Boost. When set to High-Pass (HP) operation, it acts as a variable Mid-Bass and Treble Boost. When set to All Pass (AP) operation, both Bass and Treble frequencies are boosted.
Rockford Fosgate Avatar These Avatars are a personal signature from the Rockford Fosgate team member who designed and engineered this fanatic product. This statement illustrates Rockford's commitment to being Designed and Engineered in the U.S.A.
TO-247 MOSFETs Rockford Fosgate amps use custom TO-247 MOSFETs. These have 60% more metal tab area for more power capacity, lower impedance and improved heat dissipation over traditional TO-220 MOSFETs found in competitor amps.
P500-1bd Specifications


Thirty Years of Rockford FosgateRockford Fosgate products have been designed and engineered in Tempe, Arizona since the beginning. Rockford's 30 year reputation is grounded in engineering and manufacturing some of the finest audio products in the world. The company's no-compromise approach has yielded patented iconic products such as the Punch EQ, Punch 45 amplifier and the 3Sixty integrated signal processor. Today, Rockford's new products push the performance envelope even further. Each new product is a step forward--they sound bigger, they play louder, and run longer. Rockford never settles for "good enough."
The 2010 product line represents the company's core philosophy. Rockfords new amplifiers, speakers and subwoofers have raised the bar on the competition.
What's in the Box Rockford Fosgate Punch P500-1BD 500-Watt Mono Amplifier, User's Manual
More Amplifier Options From Rockford Fosgate If you need more features, step up to the Power Series T500-1BDCP.
On a Tighter Budget? Rockford's also got you covered. Consider the Prime Series R500-1.
Rockford Fosgate Punch Series Power Amplifiers


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Rockford Fosgate T212D2 Power Stage 2 12" subwoofer with dual 2-ohm voice coils Review

Rockford Fosgate T212D2 Power Stage 2 12 subwoofer with dual 2-ohm voice coils
Average Reviews:

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I have had this sub for a few years now and it is truly amazing. The sound output is incredible. The only drawback is the very large box required for it. All in all if you are looking for a huge hitting loud sub this one is it.

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12" subwoofer with dual 2-ohm voice coils aluminum parabolic woofer cone with rubber surround cast aluminum basket frequency response: 28-250 Hz power range: 150-1,000 watts RMS (500 watts per coil)

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Re Audio Sxx15d4 15" 1,000 Watt Rms Rated (2000w Peak) Dual Voice Coil 4 Ohm Car Subwoofer with Triple Stacked Magnets and a Cast Aluminum Basket Review

Re Audio Sxx15d4 15 1,000 Watt Rms Rated (2000w Peak) Dual Voice Coil 4 Ohm Car Subwoofer with Triple Stacked Magnets and a Cast Aluminum Basket
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ima get straight to the point if you want people lookin at u like "OMG WHY IT SO LOUD" i recommend this sub to you. i got one of these in a ported box hooked up to a weak boss audio 1600 watt amp wired at 2 ohms gettin about 800 watts, this sub lives up to wat it said. im using the boss amp for a couple of weeks til my PCX2000D comes in then im really put it to the test when it will be gettin 1500 watts. ive heard and had them all from mtx, jbl,treo and i cant forget about kicker comin from the birthplace of kickers here in oklahoma we rep kickers hard but by far this sub has that aggressive clear bass that tru bass heads love!!!

Click Here to see more reviews about: Re Audio Sxx15d4 15" 1,000 Watt Rms Rated (2000w Peak) Dual Voice Coil 4 Ohm Car Subwoofer with Triple Stacked Magnets and a Cast Aluminum Basket

RE AUDIO SXX15D4 15" 1,000 WATT RMS RATED (2000w PEAK) DUAL VOICE COIL 4 OHM CAR SUBWOOFER WITH TRIPLE STACKED MAGNETS AND A CAST ALUMINUM BASKETFeatures:15" Dual 4 ohm Voice Coil Car Subwoofer with triple stacked magnet!2000w peak1000 watts RMS rated!No inflated ratings like other brands! These are rated with true legitimate real world RMS ratings (similar to how Alpine, or Kicker would rate their products)Engineered with new magnet covers that aid in cooling the voice coils while protecting the magnetFlat wound voice coilsDual Composite 2-piece Cone Specialized Rubber Foam Surround Cast Aluminum Basket Tork-Tite Terminal 3 " 8-layer Aluminum Voice Coil FEA Optimized Motor Structure Triple Stack Magnets Wrap around Rubber Gasket Mounting Depth - 7.75" Mounting Hole Diameter - 14" Overall Diameter - 15.5" Bolt Hole Circle - 14.75" Motor Width - 6.5" Motor Depth - 3.25" Basket Depth - 4.5" Displacement - 0.18 cu. ft. Weight - 27 lbs. Electrical Q Value -Qes: 0.38 Mechanical Q Value -Qms: 4.7 Total Speaker Q Value -Qts: 0.38 Free Air Resonance -Fs: 27.8 Hz Equivalent Compliance -Vas: 126.3 liters One-Way, Linear Excursion -Xmax: 22 mm Efficiency -SPL 1W/1m: 90.4 dB SPL Effective Piston Area -Sd: 810 cm^2 DC Resistance -Re: 1.9 ohm Nominal Impedance -Znom: Dual 4 ohm Thermal Power Handling -Pe: 1000 W Force Factor -Bl: 21 Ported Compact: 3.0 cubic feet tuned @ 35Hz Ported Optimal: 4.0 cubic feet tuned @ 34Hz

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BOSS D125AP Dual 12-Inch 2000W 4-Ohm Bass System Amplified SubwooferEnclosure Install Kit Review

BOSS D125AP Dual 12-Inch 2000W 4-Ohm Bass System Amplified SubwooferEnclosure Install Kit
Average Reviews:

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yes the item was very crapy toi be sold at 309.00 i have a 1000 watt audio pipe system i had bought for 225.00 and it sounded alot better than these

Click Here to see more reviews about: BOSS D125AP Dual 12-Inch 2000W 4-Ohm Bass System Amplified SubwooferEnclosure Install Kit

Dual 12-inch Bass System: Amp., Subwoofer In An Enclosure, Install Kit, 2000 Watts, 4-Ohm

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Alpine Type-X SPX-17REF - Car speaker - 75 Watt - 2-way - component Review

Alpine Type-X SPX-17REF - Car speaker - 75 Watt - 2-way - component
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I have these installed in my 1998 Honda Civic coupe. I have an Alpine head unit and an Alpine MRP F300 amp that sends 50 watts RMS to these speakers which I have installed in the front doors. I don't have a sub-woofer so these and a pair of Alpine SPR 69C 6x9's make up my car audio system. I've had Pioneer and Rockford Fosgate components in other vehicles and I am very pleased with these for the price. I purchased them at Dealer Cost Car Audio dot com, with no tax and free shipping for $176, there was also a $20 coupon online which made the price great. With components like these the high's and mid's are perfect. My car is older and its a Honda so the road noise is pretty loud at 70 MPH, these help me forget about the road noise during my commute. If you think component speakers like these will add solid low end bass, you are wrong. The low end sound is good but not near sub-woofer good, if you want booming base get a sub. I rock out with hard rock and get G'd up from the feet up with hip hop and these speakers perform better than I expected. I would recommend these to anyone who wants a quality pair of component speakers who enjoy listening to any song's full dynamic range. There are cheaper speaker out there, but in my opinion Alpine's quality is awesome and these are worth the price.

Click Here to see more reviews about: Alpine Type-X SPX-17REF - Car speaker - 75 Watt - 2-way - component

The SPX-17REF 6.5-inch component 2-way speaker and the SPX-13REF 5.25-inch component 2-way speaker combine premium sound with an easy-to-install design. The Type-X Reference speakers come with a tweeter mounting bridge that allows users to turn the component system into a coaxial system, for greater installation flexibility.

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