- maximum power Output 4 x 500w - bridgeable RMS power @ 4 ohms: 2 x 1000w - 4 Channel bridgeable MOSFET amplifier - Frequency response 20 hz-50khz (3Db) - Output power @ 14.4V DC, 50Hz - 2 ohm stable - MOSFET power supply - pwm ( pulse-width-modulation ) system - glass epoxy PCB - Silver RCA inputs - custom terminal block for speaker connection - thermal/ overload/ short circuit protection - Input impedance: 47K ohms - soft turn on/ off - advanced protection circuitry - S/N ratio: > 90Db - dimensions: 10.24"W x 2.21"H x 14.58"L FROM THE MANUFACTURER Advanced Protection Circuitry view larger Power Series Amplifiers view larger System Application Diagram view larger The Strong and not so Silent Type Custom Terminal Block for Speaker Connections view larger POWER AMPLIFIERS The Pyle Power Series Amplifiers will provide your audio setup with a powerful new sound. Add performance and quality enhancement to your music when you upgrade your audio system with these rugged and high-efficiency amps. Enjoy tomorrow’s advanced sound technology that outperforms all other amps in its class. This lineup of Pyle Power amps raises the bar when it comes to true sound quality. Get that sound you’ve been looking for with crisp music reproduction for any mobile audio environment. SOUND SPECIALIZATION These high-efficiency amplifiers host impressive power output wattage and are where form and function meet. Enjoy sound and performance enhancing features like Ohm specific stability, Mosfet power supply, PWM (Pulse-Width-Modulation) System, Glass Epoxy PCB, silver RCA inputs, custom terminal blocks for speaker connections, strong frequency response, and input impedance rates along with plenty more features that make the Pyle Power Series Amplifiers stronger than the competition. INTELLIGENT DESIGN Safety features include power and protection LED indicator; soft turn-on/off, thermal, overload and speaker-short protection. LED Indicator shows when the amplifier is powered up normally and when your system is experiencing a protection fault. PUMP IT UP Take advantage of the Bass EQ Boost and turn it up. Make adjustments to the Bass EQ settings until you achieve that extra amount of kick you’ve been waiting for. STRONG SOUND – POWERFUL STYLE The jet-black design leaves a clean finish on the fortified aluminum heat-sink. The stream-lined and high-tech appearance will definitely add some muscle to your audio. TOTAL AUDIO CONTROL Once you’re connected, customize and adjust your listening experience to your liking with the amplifier’s control center. You can personalize and fine-tune settings like: * Level (Gain) Control – These are basically volume controls. This will allow you to adjust the incoming signal to the amplifier so that it works well with your headunit or to match the level of other amplifiers in your system. * Phase - Allows you to change the relative time that the waveform meets your ear. With standard subwoofer installations where the subwoofer is behind you, the phase should generally be at O. When subwoofers or woofers are in the kick panels or door panels, an adjustment is useful in delaying the timing of the wave meeting your ear. * High-Pass Filter – The High Pass crossover is used for sending midrange and high frequency information to a particular speaker. Activate the High Pass crossover if you intend to drive satellite or coaxial speakers in the system along with subwoofers driven by the amplifier’s channels. Even if your system does not include subwoofers, it may be helpful to activate the High Pass with smaller speakers to protect them from low frequency information to achieve better sound. * Low-Pass Filter - Filters high frequencies out of the music and improves efficiency and sound quality by allowing only the low frequencies to pass to the subwoofer. Sends only low frequency information to particular speakers. Low Pass crossover activation is usually desired if you intend to power subwoofers. * Bass EQ - Variable from a range of decibel adjustments, this feature regulates the impact of your bass kick. You’ll have manual control over balancing and correcting the frequency range of a given sound. * Crossover Switch – Basically acts as a filter and limits selected frequencies going to a subwoofer, which gradually reduce frequency signal strength. Routes output of the Low Pass or the output of the High Pass filters, or ‘Full’ to the power amplifier. *Please refer to table below for amplifier specific information and adjustment options. SPEAKER OUTPUT CONNECTIONS Connect right and left speaker wire to corresponding speaker output terminals. Be sure to correctly connect the selected speaker wires to their respected speaker terminal, this includes both positive and negative wiring. Improper installation/wiring will result in the speaker cones to move out of phase which can cause bass cancellation. INPUT CONNECTIONS These amplifiers have inputs for Low Level input connections. The Low Level signal is carried through RCA connection cables. ADDITIONAL FEATURES * Maximum Power Output 4 x 500W * Bridgeable RMS Power @ 4 Ohms: 2 x 1000W * 4-Channel Bridgeable MOSFET Amplifier * Frequency Response 20 Hz-50kHz (±3dB) * Output Power @ 14.4v DC, 50Hz * 2 Ohm Stable * MOSFET Power Supply * PWM ( Pulse-Width-Modulation ) System * Glass Epoxy PCB * Silver RCA Inputs * Custom Terminal Block for Speaker Connection * Thermal / Overload / Short Circuit Protection * Input Impedance: 47K Ohms * Soft Turn On/ Off * Advanced Protection Circuitry * S/N Ratio: >90dB * Dimensions: 10.24''W x 2.21''H x 14.58''L WHICH PYLE POWER SERIES AMPLIFIER IS RIGHT FOR YOU? PLA2378 PLA2678 PLA2978 PLA4278 Currently Viewing PLA4478 PLA1800 PLA3100D PLA4600D Channels 2 2 2 4 4 1 1 1 Watt Power Output @ 4 Ohms 2 x 1000 2 x 2000 2 x 2500 4 x 500 4 x 1000 1 x 300 1 x 900 1 x 1200 Watt Power Output @ 2 Ohms - - - - - 1 x 500 1 x 1200 1 x 1800 Watt Power Output @ 1 Ohms - - - - - 1 x 700 1 x 1600 1 x 2400 Bridged @ 4 Ohms 1 x 2000 1 x 4000 1 x 5000 2 x 1000 2 x 2000 - - - Maximum Output Watt Power 2000 4000 5000 2000 4000 2400 3100 4600 Low Pass Cross Frequency 40Hz – 300Hz 40Hz – 300Hz 40Hz – 300Hz 60Hz – 200Hz 60Hz – 200Hz 40Hz – 300Hz 40Hz – 150Hz 40Hz – 150Hz High Pass Cross Frequency 40Hz – 300Hz 40Hz – 300Hz 40Hz – 300Hz 15Hz – 250Hz 15Hz – 250Hz - - - Subsonic Filter - - - - - 10Hz – 40 Hz 15Hz – 55Hz 15Hz – 55Hz Fuse Size 2 x 15A 2 x 40A 4 x 30A 2 x 25A 2 x 40A 2 x 30A 4 x 25A 4 x 30A

Output Power @ 14.4v DC, 50Hz - Silver RCA Inputs - Advanced Protection Circuitry. Frequency Response 20 Hz-50kHz (±3dB) - Glass Epoxy PCB - Soft Turn On/ Off. 4 Channel Bridgeable MOSFET Amplifier - PWM ( Pulse-Width-Modulation ) System - Input Impedance: 47K Ohms. Bridgeable RMS Power @ 4 Ohms: 2 x 1000W - MOSFET Power Supply - Thermal / Overload / Short Circuit Protection - Dimensions:10.24''W x 2.21''H x 14.58''L. Maximum Power Output 4 x 500W - 2 Ohm Stable - Custom Terminal Block for Speaker Connection - S/N Ratio: >90dB. SLIM SIZE DESIGN: This box amp's small size makes installation a breeze, you'll have no trouble finding a spot for this little yet powerful device; Additional features include LED indicators, RCA output, soft turn-on circuit, glass epoxy PCB and more. THERMAL PROTECTION: To keep both your car and the stereo amp safe, this model is equipped w/ thermal, overload and short circuit protection; Has been specially designed from the bottom up to provide safe and high quality sound in a sturdy form factor. MOSFET PULSE: The MOSFET pulse width modulation power supply allows for a clean distortion-free signal to your compact speakers providing you with crisp and clear audio for an outstanding music experience; Also features pulse width modulation system. SILVER-PLATED RCA PORTS: The RCA ports are silver-plated for eliminating signal loss; The subsonic filter allows low-end interference to be cut so your speakers will always deliver the highest quality audio. 2000 WATT POWER: The Pyle 4 Channel Car Amplifier is perfect for your vehicle's sound system; Gives you up to 2000W bridgeable output; Features switchable bass boost, variable gain control, configurable electronic crossover network.

Number of Channels: 4. Brand: Pyle. Voltage: 14.4 Volts. Item Dimensions LxWxH: 14.57 x 10.24 x 2.21 inches. Best Sellers Rank: See Top 100 in Electronics. : B002RU92Z0. Manufacturer: Sound Around. Date First Available: September 14, 2004. Department: Car Amplifiers. Item model number: PLA4278. Product Dimensions: 14.57 x 10.24 x 2.21 inches; 8.16 Pounds. Is Discontinued By Manufacturer: No.