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B0032FOJXY Availability: Currently unavailable Score: 1000.000 Category: Electronics Rating: 3.8 Votes: 23 Find similar products BOSS Audio Systems BG300 Car Bass Generator - Powerful Low Frequency Enhancement System for Bass Applications. Product Description Add more customization to your car sound system and top it off with a sense of style with the BG300 Bass Generator with Illuminated Logo and Controls from Boss Audio Systems. This easy-to-use filter is essentially an equalizer for the low levels of your sound output. Simply select the frequency you want to amplify or quieten, and the BG300 will add or reduce the output of that particular frequency. Don't just let it sit in the background and do its job with a brilliant lighted logo and illuminated controls, you'll be proud to show it off as you sample your system. Amazon.com Get more from your bass system with Boss Audio's BG300. This wicked-looking device increases bass response in the frequency range you select. Put it between your receiver and amps, and be certain you get the low-end you desire, regardless of your receiver's shortcomings. Get more from your bass system. Click to enlarge. The evil LED eyes. Dash-mount remote for subsonic filter and bass level. Remote Control The dash-mount remote gives you convenient control of the subsonic filter and bass level. The Evil Eye The menacing skeleton eye LEDs display bass restoration activity in real-time, and illuminated knobs help make adjustment a snap. PFM Subsonic Filter Trim the signal of unusable bass--below human hearing range and taxing to audio systems--for further efficiency with the Subsonic filter Maximum Bass Control Set your center frequency to suit your system with the parametric bass control, and control the overall bass output. Balanced Inputs The BG300's balanced inputs reject noise from your vehicle's electrical system. Specs Power supply: PWM high headroom Power supply: PWM high headroom Output level: 10V Output level: 10V Frequency response: 10Hz - 100kHz Frequency response: 10Hz - 100kHz THD: 0.003% THD: 0.003% Signal-to-noise ratio: >130dB Signal-to-noise ratio: >130dB Balanced input noise rejection: 60dB Balanced input noise rejection: 60dB Dimensions (W x L x H): 7 x 4-5/8 x 1-5/8 inches What's in the Box Boss BG300 Bass Generator, Dash-Mount Remote, User's Manual Dimensions (W x L x H): 7 x 4-5/8 x 1-5/8 inches What's in the Box Boss BG300 Bass Generator, Dash-Mount Remote, User's Manual.	B0032FOKMY Availability: Currently unavailable Score: 7.576 Category: Electronics Rating: 3 Votes: 8 Find similar products BOSS Audio Systems NX2000.2 Onyx 2000 Watt 2-Channel Mosfet Bridgeable Amplifier with Remote. Product Description Boss NX2000.2 2000 Watt 2-Channel Mosfet Bridgeable Amplifier with Remote Amazon.com Boss Audio's newly designed Onyx amplifiers bring you every configuration you could need, for any system setup. State-of-the-art circuitry and power supply design optimize efficiency while delivering tremendous power output with plenty of headroom. The NX2000.2 is a two-channel MOSFET amp with 2000 watts peak power (bridged). A two-channel MOSFET amp with 2000 watts peak power (bridged). Click to enlarge. Onyx amps include a remote subwoofer level control. Two Channel or Bridged Mode Run in two-channel mode for 1000 x 2 peak power at 2 ohms (500 Watts x 2 at 4 ohms) or bridge to your sub for a whopping 2000 Watts peak. Trimode Operation This allows you to send your signal to a tri-way crossover for adding a subwoofer to a two-channel amp. Remote Subwoofer Level Control Onyx amps include a remote subwoofer level control. If you're using it to power a sub, you'll be able to quickly make level adjustments. Line/Speaker Level Inputs Separate line and speaker level inputs mean the Onyx can handle high-level signals from receivers lacking RCA outputs. Built-In Crossovers This amplifier features variable high- and low-pass crossovers, so you can adjust the sound to suit whatever speakers you're driving. Variable Gain Controls Allows you to match the input gain to your receiver for better sound with less distortion. MOSFET Power Supply For high performance with low heat. Bass Boost Add a little extra low-end power with 0 to +18dB of variable bass boost. Power and Protection LEDs Protection LEDs let you know when there's a problem. What's in the Box Boss NX2000.2 Amplifier, Subwoofer Level Control, User's Manual.
B00K5JY4BM Availability: Currently unavailable Score: 7.092 Category: Electronics Rating: 4.5 Votes: 12 Find similar products Autotek 7007 1/2 Din 4 Band Car Audio Equalizer 2 Way 9 Volt Line Driver. Description: 7007: Four-Band Equalizer and Line-Driver Four-Band Equalizer and Line-Driver Dual inputs with level matching Dual inputs with level matching High-pass front and rear crossover High-pass front and rear crossover Gold plated contacts for optimal signal transfer Gold plated contacts for optimal signal transfer Perfect for add-on MP3 Players Perfect for add-on MP3 Players 2 Sets of RCA Composite audio inputs 2 Sets of RCA Composite audio inputs Selectable blue and red illumination Selectable blue and red illumination Front to rear dual amp fader Front to rear dual amp fader 3 Sets of RCA Composite outputs (Front, Rear, Subwoofer) 3 Sets of RCA Composite outputs (Front, Rear, Subwoofer) Master and subwoofer volume control Master and subwoofer volume control 9V Multiple-source signal processor 9V Multiple-source signal processor Equalizer Controls:12dB at 45Hz120Hz Mid-bass at 2,200Hz12,000Hz treble Equalizer Controls: 12dB at 45Hz 12dB at 45Hz 120Hz Mid-bass at 2,200Hz 120Hz Mid-bass at 2,200Hz 12,000Hz treble 12,000Hz treble Selectable Subwoofer Output:50Hz80Hz120Hz at 18dB Slope Selectable Subwoofer Output: 50Hz 50Hz 80Hz 80Hz 120Hz at 18dB Slope 120Hz at 18dB Slope 1-year Manufacturer's warranty 1-year Manufacturer's warranty.	B000CHTHIW Availability: Currently unavailable Score: 6.944 Category: Electronics Rating: 5 Votes: 1 Find similar products Lanzar OPTID100 Optidrive 7 Volt Line Driver Crossover Network with Remote Bass Boost. Blue Light Illuminated Control Panel Removable Covers For Power Input/Output Ports. Rotary Control Knobs PWM Power Supply Subwoofer Variable Phase Shift Control Subwoofer Stereo/Mono Mode Control Variable Line Out Level Control Variable Input Level Control Remote Bass Boost , Level and Q controls Variable Bass Boost Frequency : 40-400 Hz Variable Q (2-20) Dimensions : 6-InchW x 1.75-InchH x 10.69-InchL.
B079H2CPN1 Availability: Currently unavailable Score: 6.536 Category: Electronics Rating: 4.4 Votes: 20 Find similar products Kicker KEY180.4 4x45w 4-Ch Full-Range Smart Amp w Start/Stop Capability. The Key Smart Amplifier - The biggest advance - in the smallest package. Introducing the KEY smart amplifier and audio processor in one. Press the selector, and the microphone goes to work. The KEY uses a powerful internal computer to deliver dramatic improvements in realism and soundstage. A massive 40-band equalizer improves tonality. A 24dB crossover re-defines the capabilities of each speaker. Time alignment delivers unheard realism. The concert quality of your factory stereo is revealed! What would take hours for a professional to achieve happens in a matter of minutes. All automatically. All with the press of a single button. Measuring less than eight inches long and only two inches high, the KEY180.4 fits nearly anywhere. Mount it behind your radio, under the seat, or in your trunk with ease. The KEY180.4 is one of the first amps fully compatible with newer vehicles using start-stop systems. The amplifier also features FIT2 (Fail-Safe Integration Technology), providing compatibility with nearly every stock and aftermarket radio on the road today. 180 Watts Of Power (45x4) Auto EQ Microphone With Selector Switch Included Compatible with Start/Stop Vehicle Technology FIT2 Technology Included Turn On Via Remote 12v Signal Or DC Offset Auto 40-Band Equalizer Auto Gain Adjustment Auto Speaker Size Detection 24dB Crossovers 60/180/120Hz High Pass Filter (Defeatable) Specifications Power (watts/ch), 4 Ohm stereo 45x 4 Microphone/Kicker EQ button included Standard dimensions(H x W x L) 1-11/16 x 2-3/4 x 7-3/8 Metric dimensions(H x W x L) 4.3 x 7 x18.7 Frequency Response (Hz): 20-20k, +0/-1dB Input Sensitivity: high level 250mV-10V Signal-to-Noise Ratio:>90dB, a-weighted, re: rated power Active Crossover: 24dB/octave, selective high pass or all pass @ 60,80, or 120Hz What's in the Box: 1 - 4 channel power amplifier 1 - microphone 1 - microphone cable with switch 1 - fuse holder 1 - manual and installation hardware.	B00KB1MU06 Availability: Currently unavailable Score: 6.289 Category: Electronics Rating: 4.7 Votes: 13 Find similar products 6XS - AudioControl 6 Channel Electronic Crossover W/Wired Bass Remote. AudioControl's 6XS 6-channel crossover uses a steep 24 dB per octave slope to separate your high and low frequencies, along with a built-in line driver that'll beef up the signal from an anemic receiver. The 6XS crossover features front. rear, and subwoofer inputs, along with four sets of outputs: front high-pass, front low-pass, rear high-pass, and subwoofer. It comes preloaded with crossover modules that will work in a number of system configurations, but you can change the crossover point by buying another AudioControl module, or by modifying the modules installed in your 6XS. A built-in filter cleans up extreme subsonics in your signal so your amps and subs will play louder and cleaner. NOTE: UNIT SHIPS IN EITHER GREY OR WHITE. KINDLY EMAIL OR INFORM US THE COLOR YOU PREFER. THANKS!.
B09LQ44BPC Price: $58.9 Score: 6.098 Category: Electronics Rating: 3.8 Votes: 21 Find similar products 2000W Wireless Bluetooth 5.0 Audio Power Amplifiers, 2 Channel Stereo Sound Audio Receiver w/R&L Channel EQ Adjustment, LED Display, USB/SD, MP3, FM, 4 MICS Input for Car & Home Theater Use. Specifications: Colour: Black Model: AV-MP326BT Size: 26 * 29 * 10cm / 10 * 11.4 *4 in Input voltage: 110V DC 12V Rated power: 1200W Peak: 2000W Rated frequency: 20KH - 20KHz Signal to noise ratio: 90dB Standard impedance: 4 to 16 ohm Transmission distance: 8 meters ( No obstacles ) Type of power amplifier: AV power amplifier Channel: 2.0 channel Total harmonic distortion: ≤ 0.5% Signal input sensitivity: 200mv (± 30mv) Microphone input sensitivity: 9 mv (± 2mv) Recording level output: 1V Auxiliary level output: 1V Support:USB Disk/Max 64GB SD Card(Not included) Packaged Included: 1 x Audio Power Amplifier 1 x Remote Control Note: 1. The USB Disk/Max 64GB SD Card is not included in the package. 2. Please allow 0.5-1cm differences due to manual measurement. 3. Due to the light and screen difference, the item's color may be slightly different from the pictures.	B001GSD5PC Availability: Currently unavailable Score: 6.061 Category: Electronics Rating: 3.2 Votes: 11 Find similar products MTX RE-Q 3-Ch Bass Restoration Module. Signal processor restores bass when adding amps to a factory system * Right, left, and subwoofer preamp outputs * Low-pass and subsonic filters * Bass Enhance switch * 8-1/8W x 1-1/16H x 3-3/4D *.
B0002CNQ6Q Availability: Currently unavailable Score: 6.024 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.	B08KTVHN2Q Availability: Currently unavailable Score: 6.024 Category: Electronics Rating: 4.5 Votes: 2 Find similar products AudioControl D-6.1200 6-Channel Car Amplifier with Digital Signal Processing. Audio Control D-6.1200 6-Channel Car Amplifier with Digital Signal ProcessingProduct Highlights: 6-channel car amplifier with digital signal processing 125 watts RMS x 6 at 4 ohms (200 watts RMS x 6 at 2 ohms) 400 watts RMS x 3 bridged at 4 ohms (4-ohm stable in bridged mode) all controls and adjustments accessible via PC, Android, or iOS device (AudioControl's Smart-User DSP software included) variable high- and low-pass filters (20-20,000 Hz, 12 or 24 dB/octave) subsonic filter at 32 Hz AccuBASS circuitry for improved bass response 30-band graphic EQ, parametric filters, phase correction time delay/alignment for inputs and outputs RTA (real-time analyzers) for inputs and outputs Other Features: MILC (Maximum Input Level Control) LED optimization and clip indicators GTO signal-sensing turn-on 8 speaker-level inputs (summable) 6 preamp inputs 2 preamp outputs fuse rating: 40A x 3 wiring and hardware not included with amplifier 4-gauge power and ground wires recommended dimensions: 12W x 2-1/8H x 8D.