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B007163080 Availability: Currently unavailable Score: 1000.000 Category: Electronics Rating: 3.3 Votes: 10 Find similar products Hifonics ZRX3000.1D Car Amplifier (Discontinued by Manufacturer). Hifonics Zeus series amplifiers. Designed to complement the Brutus D-Class line, this series has a newly designed, ultra-cool vertical fin heat-dissipating design. The outstanding line of Zeus amplifiers includes one 2-channel, three 4-channel, and one 5 channel amplifier. The key feature for these amplifiers is the vertical fin heat-sink. With the new vertical fin heat-sink design these amplifiers have better heat dissipation and therefore run more efficient resulting in less impact on a cars battery and charging system than many other amps available today. Translated into cost, thatÍs more wattage output with less battery current used, equaling more watts per dollar. This series also includes the ZXi60.4 +1K model. This 5 channel amplifier provides 2 channel, 4 channel, and Super D mono-block performance. For someone looking for ease of installation and space-savings, this is this amplifier of choice. This one amplifier is capable of powering an entire system including four speakers and a subwoofer! Rather than bridging two amplifiers, which takes up additional space, this one does it all. Zeus amplifiers utilize the latest in Hifonics exclusive technology with Ultra-Fi MOSFET output devices, responsible for decreasing distortion and producing high fidelity. With Ultra-Fi, Zeus differential inputs combat electrical interference and noise at the pre-amp sections RCA inputs. As a result, this high-speed Ultra-Fi circuitry delivers the cleanest and widest bandwidth possible in a mobile amplifier system.	B09HTVSV94 Price: $54.99 Score: 8.547 Category: Electronics Rating: 4.2 Votes: 603 Find similar products Blaupunkt 1500W 1-Channel, Monoblock Amplifier. The Blaupunkt 1-Channel, Monoblock Amplifier (AMP1501) embodies over 90 years of innovation and excellence in Blaupunkt products, making it the perfect amplifier to install into your motor vehicle. With an optimized 563-watt RMS and a max output power of 1500 watts, you can give your music a huge boost in power that will have you and your passengers partying while on the road. Compactly built so this amplifier can fit perfectly into any trunk, which lets you easily connect it to your stereo system. Get amped up for the Blaupunkt 1-Channel, Monoblock Amplifier (AMP1501) and take your car to the next level. Amplifier Class: D No. of channel: 1-Channel (Monoblock) Dimensions: 7.1 x 7.5 x 2.1 Max. Output Power: 15000W x 2 RMS Power (4 Ohms): 563W x 2 RMS Power (2 Ohms): 1125W x 2 Frequency Response: 10Hz - 300Hz Signal-to-Noise Ration: => 90dB Voltage Supply: 11 - 16V DC Gain Adjust: 100mV-6V Total Harmonic Distortion: <=0.05 percent RCA Input: 2-Channel Crossover Frequency: 40Hz - 180Hz Crossover Slope (dB/oct): 12dB/oct Fuse: 20A x 2.
B00XJATQ4O Availability: Currently unavailable Score: 8.000 Category: Electronics Rating: 3.8 Votes: 4 Find similar products Cerwin-Vega H4900.4 Hed Class Ab Amp (4 Channels, 900W). When seeking power and clean signal for your car audio system, Cerwin-Vega Mobile's HED series amplifiers are the answer. The High Energy Design amplifiers generate even more power compared to the previous-generation HED models. The 4-channel H4900.4 model outputs 900 watts max/865 watts x 4 @ 4ohm RMS power. Dimensions are 2.19H x 8.88W x 15.7D.Constructed with a heavy-grade aluminum alloy extruded heat sink, HED series amplifiers are built to last. Red ambient logo background lighting completes the finish on this series. Equipped with a variable crossover, HED series amplifiers can adjust to exactly how you want your car audio system to sound!.	B014HNC9A4 Availability: Currently unavailable Score: 8.000 Category: Electronics Rating: 4.6 Votes: 108 Find similar products Skar Audio RP-3500.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 3500W. Skar Audio engineered the RP-3500.1D Class D monoblock subwoofer amplifier to be dominant in both power and reliability compared to anything else on the market in its' class. Designing the most efficient, well built, high quality amplifiers is where we start here at Skar Audio, and that is exactly what is delivered in the RP-3500.1D. This amplifier is competition grade and for the most serious audiophiles seeking extreme levels of power output. The RP-3500.1D is 1-ohm stable and utilizes a wide array premium internal components that make it extremely powerful and reliable - such as its high speed MOSFET power supply and advanced PCB board layout. Conservatively rated at 3,500 watts RMS power at a 1-ohm load, with the capabilities of reaching beyond 5,500 watts at max power output. This amplifier is by far one of the most affordable and powerful competition grade monoblocks on the market when priced per watt, and will exceed your expectations when you hear it bring your subwoofers alive. Furthermore, the oversized 1/0-gauge power and ground terminals found on the amplifier allow for maximum current flow and therefore higher power output and more efficient operation. You'll have full reign over your amplifier with the built-in user control panel, featuring variable adjustment tunings for gain level, bass EQ (0-9 dB), subsonic filter (10-50 Hz), low-pass filter (35-250 Hz), and phase filter (0-180 Degrees). In addition to all the above features, this model also features 4-way protection circuitry, which will give the user the peace of mind knowing they are protected against damage to the amplifier for various reasons - including electrical shortage, overheating, low voltage, and more. This amplifier comes with a remote subwoofer level control (bass knob) allowing the user to have full control over their bass from the front of the vehicle. Present on the RP-3500.1D as well are both input and output RCA connections, allowing the source signal to be daisy chained between multiple amplifiers. The RP-3500.1D is also strappable, featuring an output master/slave input switch.
B019Z3RIOS Availability: Currently unavailable Score: 7.752 Category: Electronics Rating: 4 Votes: 80 Find similar products Rockville RXD-M4 6000 Watt/3000w RMS Mono Class D 1 Ohm Amplifier Car Stereo Amp. Over the years, the technology used to create audio amplifiers has grown by leaps and bounds. We consider it our mission to use our expertise in developing the latest technologies and to bring you the absolute best sounding amplifiers on the market and of course at a reasonable price. From its clean, sleek design to its high quality components, you will be amazed at the quality and power that these new Phenom amps offer.The RXD-M4 is a class D monoblock high power amplifier with 6,000 watts peak output, 3,000 watts RMS output and 1500 watts CEA-2006 rated power. It is CEA-2006 compliant which makes it easy to compare this amplifier to other CEA compliant amps on the market. The issue the car audio world is facing today is that there are so many different brands with different standards on how they rate their products. Here at Rockville we offer the best value in car audio. We therefore want to make it easy for you to compare our products to any brands on the market. So we provided 3 ratings for all our car amplifiers. We provided a CEA compliant rating, which you should use to compare this amplifier to other premium brands that make CEA compliant products such as Kicker, Rockford Fosgate, Kenwood, Pioneer, etc. We also supplied an RMS rating that Is not CEA compliant but has become standard in the industry. You should use this rating when comparing with ratings from brands such as Hifonics, Earthquake, DB Drive, etc. Lastly, we also supply a peak rating which almost all brands In the industry provide. This peak power is the amount of power the amp puts out at the loudest moments during a particular song.One of the tricks to determine the real power of a car amplifier is to multiply the fuse rating by 10 to determine the true RMS power. This formula almost always works within 20 %. RXD-M4 features a 200 Amp External In-Line ANL Fuse Block.	B00XKKPROG Availability: Currently unavailable Score: 7.752 Category: Electronics Rating: 4 Votes: 80 Find similar products Rockville RXD-M4 6000 Watt/3000w RMS Mono Class D 1 Ohm Amplifier Car Stereo Amp. Over the years, the technology used to create audio amplifiers has grown by leaps and bounds. We consider it our mission to use our expertise in developing the latest technologies and to bring you the absolute best sounding amplifiers on the market and of course at a reasonable price. From its clean, sleek design to its high quality components, you will be amazed at the quality and power that these new Phenom amps offer.The RXD-M4 is a class D monoblock high power amplifier with 6,000 watts peak output, 3,000 watts RMS output and 1500 watts CEA-2006 rated power. It is CEA-2006 compliant which makes it easy to compare this amplifier to other CEA compliant amps on the market. The issue the car audio world is facing today is that there are so many different brands with different standards on how they rate their products. Here at Rockville we offer the best value in car audio. We therefore want to make it easy for you to compare our products to any brands on the market. So we provided 3 ratings for all our car amplifiers. We provided a CEA compliant rating, which you should use to compare this amplifier to other premium brands that make CEA compliant products such as Kicker, Rockford Fosgate, Kenwood, Pioneer, etc. We also supplied an RMS rating that Is not CEA compliant but has become standard in the industry. You should use this rating when comparing with ratings from brands such as Hifonics, Earthquake, DB Drive, etc. Lastly, we also supply a peak rating which almost all brands In the industry provide. This peak power is the amount of power the amp puts out at the loudest moments during a particular song.One of the tricks to determine the real power of a car amplifier is to multiply the fuse rating by 10 to determine the true RMS power. This formula almost always works within 20 %. RXD-M4 features a 200 Amp External In-Line ANL Fuse Block.
B00KB3GAMI Availability: Currently unavailable Score: 7.752 Category: Electronics Rating: 3.8 Votes: 11 Find similar products Alpine PDR-F50 4/3/2 Channel 500 Watt Amplifier. The PDR-Power amplifiers offer the best performance in their class, redefining expectations in the high-power amplifier category. Thanks to trickle-down technology, our in-house engineering team has taken many of the patent-pending technologies introduced in the industry-leading PDX series and infused them in the new PDR-Power amplifiers. The PDR-Power amps provide you with the absolute widest bandwidth, best signal-to-noise, lowest distortion and highest damping factor of any amplifier in their class without sacrificing power. Overview Class-D Performance PDX Technology Inside Rotatable Illuminated Alpine Badge Top-Side Control Panel Voltage ON/OFF Sensing for OEM Upgrade Built-in Crossover & Bass EQ Remote Bass (RUX-KNOB) Compatible Sound Quality Small, Powerful Design The new PDR-Power series amplifiers have decreased in size compared to the X-Power, yet they pack in much more flexibility, durability with Alpine sound quality. Standing Alone in the Clarity Class Ultra-Wide Frequency Bandwidth: This super-wide, industry leading frequency range offers listeners unparalleled sound quality and detail that bests even the most high-end audiophile equipment. Best Signal-to-Noise: In order to ensure that all of the industry-leading sound quality is heard at your ears, we’ve worked to create a platform that offers an unbelievably low noise floor, taking extra care to ensure a clean signal path, with no extraneous inferences. Unequaled Reliability Excessive heat is the enemy of amplifiers and under extreme conditions will result in most amps shutting down completely. PDR-Power amps use a special Multi-Stage Power Management circuit that continuously monitors critical component temperatures throughout the amplifier and decreases power output if anything gets too hot.	B0797JM4H8 Availability: Currently unavailable Score: 7.692 Category: Electronics Rating: 4 Votes: 21 Find similar products Hifonics ZXX-5000.5 Zeus, Silver, 5000-Watt Amplifier, 5-Channel, Car Audio, Class A, B and D Powered Options. The ZEUS-ZXX.5 channel amplifier is the perfect solution to allow one POWER FROM THE GODS amplifier to power your entire system. Four full range channels, of high sound quality A/B Class circuit topology and a subwoofer channel (channel 5) with D-Class technology that can power the subwoofer system all the way down to 1 ohm. The ZXX-5000.5 has on board equalization and bass boost and includes a bass remote.
B0002CNQ6Q Availability: Currently unavailable Score: 7.407 Category: Electronics Rating: 4.6 Votes: 26 Find similar products Rockford Fosgate P400-4 400 Watt 4-Channel Amplifier. Product Description Since day one, we have spearheaded the car audio revolution. Nothing has changed. Rockford Fosgate is still the global leader in audio innovation and your passion is our purpose. We engineer the best audio systems for your lifestyle! Amazon.com The P400-4 is perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Simply drop a pair of component speakers on the front channels and subs on the rear and BOOM--you got The PUNCH. With its flexible design, the P400-4 is an excellent amplifier choice for virtually any vehicle. Rockford Fosgate Punch Series Amplification For over 25 years, Punch amplifiers have set the standard in the car audio amplifier industry and they continue to do so today. It's the reason that they have become the most popular amplifiers in the world. Each of the Punch family amplifiers reproduce sonic perfection along with impressive power in a compact chassis. Perfect for 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. Click to enlarge. All connections are recessed into the amplifier's chassis and located on the bottom edge of the P400-4, for a clean, uncluttered install that looks great in any car. Click to enlarge. P400-4 Features Features: 12dB/octave crossover 12dB/octave crossover 2/4 channel switch 2/4 channel switch 4 Gauge power/ground terminals 4 Gauge power/ground terminals Audiophile grade speaker connections Audiophile grade speaker connections MOSFET output stage MOSFET output stage MOSFET power supply MOSFET power supply Top Mounted LED Indicators CEA-2006 Compliant 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. 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 (Discrete Surface Mount) DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. Dynamic Thermal Management Evenly distributes excess heat across entire amplifier heatsink. MEHSA3 MEHSA3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span. NOMAD NOMAD is a real time analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Punch EQ2 Onboard equalizer with up to +18dB @ 35Hz and/or up to +12dB boost at 12kHz. 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. TRANS·ana Trans·ana simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality. P400-4 SpecificationsNumber of Channels: 4 Rated Power: 50W x 4 @ 4-Ohms RMS 100W x 4 @ 2-Ohms RMS 200W x 2 @ 4-Ohms bridged RMS Total Power: 400 Watts Dynamic Power: Front Channels 86 Watts x 2 @ 4-Ohms 0 degrees Res 144 Watts x 2 @ 2-Ohms 0 degrees Res Rear Channels 85 Watts x 2 @ 4-Ohms 0 degrees Res 142 Watts x 2 @ 2-Ohms 0 degrees Res Bridgeable: Yes Efficiency (average): 71% @ 4-Ohm 70% @ 2-Ohm Crossover Controls: Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth Tone Controls: Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Front Punch EQ2 Treble: 0dB to +12dB @ 12kHz Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Rear Punch EQ2 Treble: 0dB to +12dB @ 12kHz Function depends upon LP/AP/HP switch position Signal Input: Low level: 2 RCA pair Signal Output: n/a Power Input Connector: Block Power Wire Gauge: 4 AWG Speaker Output Connector: Screw terminal barrier strip Speaker Wire Gauge: 8 AWG to 18 AWG Heat Sink Type: Cast aluminum Cooling: Convection Remote Controls: Optional PEQ Remote Punch EQ (overrides built-in Punch EQ2 for rear channels only) Visual Indicators: Power Thermal Protect Circuit Topology Class: Class A/B Frequency Response: 20Hz to 20kHz +/- 1dB Shipping Weight: 8.89 Lbs. (4.03 Kg.) Dimensions (HxWxL): 2.25 x 7.625 x 13.02 (in) 5.71 x 19.37 x 33.07 (cm) Thirty Years of Rockford Fosgate Rockford 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 P400-4 400-Watt Stereo Amplifier, User's Manual More Amplifier Options From Rockford Fosgate If you need more features, step up to the Power Series T400-4. On a Tighter Budget? Rockford's also got you covered. Consider the Prime Series R300-4. Rockford Fosgate Punch Series Power AmplifiersRockford Fosgate Punch P200-2 200-Watt Stereo Amplifier Rockford Fosgate Punch P300-1 300-Watt Mono Amplifer Rockford Fosgate Punch P300-2 300-Watt Stereo Amplifer Rockford Fosgate Punch P400-1 400 Watt Mono Amplifier Rockford Fosgate Punch P400-2 400-Watt Stereo Amplifier Rockford Fosgate Punch P400-4 400-Watt Multi Channel Amplifer Rockford Fosgate Punch P500-1BD 500-Watt Mono Amplifer Rockford Fosgate Punch P500-2 500-Watt Stereo Amplifer Rockford Fosgate Punch P500-4 500 Watt Multi Channel Amplifier Rockford Fosgate Punch P700-1BD 700 Watt Mono Amplifier Rockford Fosgate Punch P1000-1BD 1000-Watt Mono Amplifer Top Mounted LED Indicators CEA-2006 Compliant 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. 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 (Discrete Surface Mount) DSM utilize 1% tight-tolerances improving efficiency of the circuit, decreases cross-talk from other discrete components and lowers operating temperature. Dynamic Thermal Management Evenly distributes excess heat across entire amplifier heatsink. MEHSA 3 MEHSA 3 reduces MOSFET temperatures, lowers distortion, increases durability and prolongs the output device life span. NOMAD NOMAD is a real time analog computer that protects your amplifier from shorting speaker wires and dangerously low speaker impedances. Punch EQ2 Onboard equalizer with up to +18dB @ 35Hz and/or up to +12dB boost at 12kHz. 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. TRANS·ana Trans·ana simplifies the signal path of the amplifier allowing the signal to travel through the amplifier at a lower voltage. The result is greater reliability and exceptional sound quality. P400-4 Specifications Number of Channels: 4 Rated Power: 50W x 4 @ 4-Ohms RMS 100W x 4 @ 2-Ohms RMS 200W x 2 @ 4-Ohms bridged RMS Total Power: 400 Watts Dynamic Power: Front Channels 86 Watts x 2 @ 4-Ohms 0 degrees Res 144 Watts x 2 @ 2-Ohms 0 degrees Res Rear Channels 85 Watts x 2 @ 4-Ohms 0 degrees Res 142 Watts x 2 @ 2-Ohms 0 degrees Res Bridgeable: Yes Efficiency (average): 71% @ 4-Ohm 70% @ 2-Ohm Crossover Controls: Front High-Pass (HP): 50-500Hz 24dB/octave Butterworth Front Low-Pass (LP): 50-500Hz 24dB/octave Butterworth Rear High-Pass (HP): 50-500Hz 24dB/octave Butterworth Rear Low-Pass (LP): 50-500Hz 24dB/octave Butterworth Tone Controls: Front Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Front Punch EQ2 Treble: 0dB to +12dB @ 12kHz Rear Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or Rear Punch EQ2 Treble: 0dB to +12dB @ 12kHz Function depends upon LP/AP/HP switch position Signal Input: Low level: 2 RCA pair Signal Output: n/a Power Input Connector: Block Power Wire Gauge: 4 AWG Speaker Output Connector: Screw terminal barrier strip Speaker Wire Gauge: 8 AWG to 18 AWG Heat Sink Type: Cast aluminum Cooling: Convection Remote Controls: Optional PEQ Remote Punch EQ (overrides built-in Punch EQ2 for rear channels only) Visual Indicators: Power Thermal Protect Circuit Topology Class: Class A/B Frequency Response: 20Hz to 20kHz +/- 1dB Shipping Weight: 8.89 Lbs. (4.03 Kg.) Dimensions (HxWxL): 2.25 x 7.625 x 13.02 (in) 5.71 x 19.37 x 33.07 (cm) Thirty Years of Rockford Fosgate Rockford 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 P400-4 400-Watt Stereo Amplifier, User's Manual More Amplifier Options From Rockford Fosgate If you need more features, step up to the Power Series T400-4 . On a Tighter Budget? Rockford's also got you covered. Consider the Prime Series R300-4 . Rockford Fosgate Punch Series Power Amplifiers Rockford Fosgate Punch P200-2 200-Watt Stereo Amplifier Rockford Fosgate Punch P300-1 300-Watt Mono Amplifer Rockford Fosgate Punch P300-2 300-Watt Stereo Amplifer Rockford Fosgate Punch P400-1 400 Watt Mono Amplifier Rockford Fosgate Punch P400-2 400-Watt Stereo Amplifier Rockford Fosgate Punch P400-4 400-Watt Multi Channel Amplifer Rockford Fosgate Punch P500-1BD 500-Watt Mono Amplifer Rockford Fosgate Punch P500-2 500-Watt Stereo Amplifer Rockford Fosgate Punch P500-4 500 Watt Multi Channel Amplifier Rockford Fosgate Punch P700-1BD 700 Watt Mono Amplifier Rockford Fosgate Punch P1000-1BD 1000-Watt Mono Amplifer From the Manufacturer From the Manufacturer Manufacturer's Description (November 1, 2008) If you're considering a new car audio system or just want to upgrade your current system, Rockford Fosgate equipment is a solid foundation on which to build. Rockford is one of the oldest and most respected brands in car audio history, and has been pumping out high quality, great-sounding gear since 1973. By pioneering ideas like the Punch EQ (boosting frequencies below 45Hz and above 20Khz for improved in-car music response) and using MOSFET circuitry to power in-car amplifiers, Rockford Fosgate paved the way for modern in-car electronics and hasn't slowed down since. The P400-4 features an ultra-small small footprint, and a clean, simple design that looks great no matter where it's installed. Dynamic Thermal Management ensures even heat dissipation across the entire heatsink for maximum efficiency and cooling. Rockford Fosgate amplifiers combine raw, clean power, with sleek, smart designs that are easy to install and look great in any car. All Rockford amps are CES-2006 compliant, which means the power listed is the actual power delivered, and each amp includes a birth certificate to prove it. But don't let the small size fool you; this petite powerhouse, which can easily fit under any seat, packs quite a punch! The P400-4 is the perfect companion for two pairs of coaxial or component speakers, or a pair of speakers and a simple subwoofer system. The P400-4 delivers 50 watts of clean power to for channels in stereo mode, or 200 watts per channel when bridged down to a two channel amp. But what exactly sets a Rockford Fosgate amplifier apart from the competition? Plenty. Keeping Things Clean and Cool The amplifier's job is to produce power, and lots of it. But a side effect of creating power is heat, and that is an electronic component's worst enemy. Rockford tackles this problem by incorporating a cast aluminum heat sink, Dynamic Thermal Management, and MEHSA³ technology to every amplifier, resulting in a significant reduction of the amplifier's operating temperature. The cast aluminum heat sink surrounds three of the four sides of the amplifier's circuit board, which maximizes the cooling surface area, and since the heat sink is cast it offers 30% better cooling ability over extruded designs. When combined with Rockford's patented Dynamic Thermal Management (DTM), cooling efficiency is taken one step further. DTM distributes heat evenly across the heat sink where other heat sink designs can create dangerous hot spots in the amplifier. Rockford also developed MEHSA³ technology for the MOSFET (metal–oxide–semiconductor field-effect transistor ) power transistors. MEHSA³ (Maximum Efficiency Heat Sink Application- Third Generation) maximizes heat transfer from the MOSFETs to the heat sink for up to five times better heat transfer. By keeping the internal components cool, the amplifier maximizes efficiency, produces more power, and reduces distortion for increased sound quality. Not only does the P400-4 produce lots of clean power, it also delivers exceptional sound quality. Differential input circuitry measures the positive and negative input signal as it enters the amp and subtracts the voltage common to both conductors (noise), resulting in a crisp, clean signal for maximum sound quality. The use of TRANS-ana circuitry, borrowed from pro-audio company, Hafler, also adds to the sound quality recipe. The TRANS-ana circuit simplifies the audio signal and allows it to travel through the amplifier as a low voltage signal before it reaches the amplification stage. This improves the sound quality of the signal, delivers cleaner performance, and improved reliability. The P400-4's TO-247 MOSFET power transistors offer 60% more metal tab area than the industry standard TO-220 MOSFETs, which means more power, better cooling, and improved sound quality. Once the signal reaches the amplification stage, it's greeted by much beefier MOSFETs than what is traditionally used in most amplifiers. Rockford uses TO-247 MOSFETs compared to the somewhat standard and less efficient TO-220 MOSFETs. TO-247s offer 60% more metal tab area, which means more power capacity, better heat dissipation, and lower impedance capability. In other words, these things produce some serious power with very little effort. Sound Shaping and Equalization Upgrading speakers and adding subwoofers will always improve your sound system, but in order to maximize how well the speaker performs requires a bit of equalization and sound shaping. Door and dash speakers can play a pretty broad range of frequencies, but realistically cannot produce the ultra-low frequencies that a subwoofer is designed to produce. Just the opposite is true for a subwoofer. It cannot produce mid or high frequencies well; its job is to pump out gut-punching bass. To make sure your speakers are working at their maximum efficiency, Rockford incorporated a fully variable 12db high-pass and low-pass crossover into the 400-4. With a twist of the dial, the high-pass crossover can be adjusted to eliminate any frequencies below a certain point between 50Hz and 500Hz. If using the 400-4 for a subwoofer system, switch on the low-pass crossover and adjust the crossover to eliminate higher frequencies, adjustable between 50HZ and 500Hz. The Punch EQ can be tweaked to deliver up to an 18dB increase at 45Hz for subwoofers, or up to a 12dB increase at 12kHz for speakers. This improves overall sound quality and overcomes audio response problems common to the automotive environment. Rockford Fosgate built a reputation around the Punch EQ, which is incorporated into their Punch amplifiers, and allows the amp to better shape the sound quality of your speaker or subwoofer system. When using the high-pass crossover, the Punch EQ can boost high frequencies above 12kHz anywhere from 0-12dB. This frequency range is often lost to road noise and other factors, and the Punch EQ allows you to dial up that range for perfect sound. If the low-pass filter is on, the Punch EQ can add a bit of boost (up to 18dB) to the 45Hz frequency range. This gives you the ability to dial in a little extra rib-rattling bass to your music that can be lost due to the compact size of most car interiors. Making the Connection All controls and connections are located on one edge of the amplifier, making it easy to access all controls and guaranteeing an easy, clutter-free installation. The P400-4 will accept up to 4-gauge power and ground wire, and all connections are neatly housed in c-clamp type connectors that terminate inside the amp's chassis. This adds a cleaner appearance to your install and ensures no fly-away wires can stray to other terminals causing possible shorts. All connections are recessed into the amplifier's chassis and located on the bottom edge of the P400-4, for a clean, uncluttered install that looks great in any car. Speaker connections also use a similar clean audiophile design, and will accept up to 12-gauge wire for maximum signal transfer to your speakers or subs. The amp features a single RCA connection flush with the amp's chassis, further enhancing the overall clean appearance. An RJ-45 jack is for connecting an optional remote-mounted Punch EQ control and is located next to the crossover and Punch EQ controls. The remote PEQ controller can be installed up front and within easy reach to give you on-the-fly control of your Punch EQ settings. Pushing Power The P400-4 is a flexible amplifier and is stable at two-ohms. This amp is perfect for powering front and rear speakers in four-channel mode, delivering 50 watts of clean power to each speaker. Or you can mix things up a bit and use the P400-4 to drive two front coaxial or component speakers at 50 watts RMS and bridge the rear channel to deliver 200 watts to a subwoofer. What’s in the Box P400-4 amplifier, Installation & operation manual, Warranty See more.	B000BKZN7Y Availability: Currently unavailable Score: 7.407 Category: Electronics Rating: 5 Votes: 1 Find similar products MTX Thunder TA7804 Super Amplifier - Amplifier - 4-channel. MTX has redesigned all 15 models from the ground up to incorporate the latest technologies including the renowned Xtant Technologies thermal management system. The unparalleled and unduplicated Xtant Technology Cooling (XTC) thermal-regulated turbo-charged inter cooler is incorporated into these new amplifiers to make them even more efficient than ever before. Controlled by the amplifier's output load and temperature of the heatsink and transformers, this intelligently designed internal thermal management system strategically supplies fan force cool air evenly and constantly throughout all primary and secondary devices. The addition of this technology to the new Thunder amplifiers serves to maximize the performance of the amplifier at all volume levels. The amplifier still contains all of the proprietary MTX technologies and design but has borrowed a little wisdom to make it even cooler.As an added feature on the new Thunder amplifiers, MTX has also incorporated a technology called PrizmEFX to make using a Thunder amplifier a complete sensory experience. PrizmEFX lighting tantalizes the sense of sight by allowing choice of unlimited colors on the display including red, green, blue, or any color in between. Sight united with sense of touch (through convenient adjustment controls on the surface of the product) and sense of sound makes the new Thunder amplifiers completely stimulating. And if that's not enough, you can switch PrizmEFX lighting to pulsate with beat of music to heighten the experience even more.