This Pyle Hydra amp will power your speakers on the dock, in your boat, or by the pool – it’s completely waterproof. This 4channel, 400watt marine amp takes both high and low level inputs, so it’s compatible with a variety of head units and sources. Remote turn/on off makes controlling this amp a breeze. Gold plated RCA inputs means this amp won’t be a weak link in your setup. For protection, count on the heavy duty aluminum alloy heatsink to prevent overheating, as well as thermal, overload, and short circuit protection. Comes complete with mounting screws and hardware. Runs on 12 volts DC. This Pyle Hydra amp will power your speakers on the dock, in your boat, or by the pool--it's completely waterproof. This 4-channel, 400-watt marine amp takes both high- and low-level inputs, so it's compatible with a variety of head units and sources. Remote turn/on off makes controlling the amp a breeze, and gold-plated RCA inputs mean it won't be a weak link in your setup. Power your speakers on the dock, in your boat, or by the pool. Click here for a larger image View a connection diagram. Click here for a larger imageINPUT OPTIONS The PLMRA400 features low-level RCA inputs for sources that use RCA-type connectors. If your marine receiver lacks RCA output jacks, you can connect speaker output leads to the high-level terminal inputs. INPUT LEVEL CONTROL Adjust the line level input for the least amount of distortion to match your source unit. PROTECTION Protect the amp and your vehicle's electrical system from short circuit conditions with built-in fuse protection, along with overload, thermal and short circuit protection. A heavy duty aluminum alloy heatsink helps prevent any thermal issues. 4 OR 8 OHM SPEAKER IMPEDANCE The PLMRA400 is ready for either 4- or 8-ohm speakers, in pair. REMOTE TURN-ON/OFF Wire the PLMRA400 to turn on and off in tandem with your receiver/head unit. PYLE PLMRA400 SELECT SPECIFICATIONS Power Rating: 100 Watts x 4 Maximum Power Supply Voltage: 14.4V DC Neg. Ground (10.5-16V) Frequency Response: 15 Hz-30 KHz Input Impedance: Low Level: 10K Ohms High Level: 100 Ohms Input Sensitivity: Low Level: 250mV High Level: 2.5V Dimensions: 7.87 x 2 x 8 Inches (L x W x H) Weight: 3.3 lbs. WHAT'S IN THE BOX Pyle PLMRA400 Amplifier, Mounting Hardware, User's Manual1 YEAR WARRANTY: We guarantee this hydra marine amplifier with both a 30 day no hassle money back return policy and a 1 year manufacturer’s guarantee. MARINE GRADE: With its Marine rating of IP-01, it is waterproof ready. It’s constructed with gold-plated speaker output terminal connectors as well to combat corrosion with long term use. POWERFUL 400 WATT: This amplifier is powerful with its 100 WATT x 4 max or 400 WATT and dual MOFSET power supply. Comes with dual adjustable input GAIN level controls between 1-300mV and 4 or 8 Ohm speaker impedance. SHORT PROTECTION: Built with a heavy duty Aluminum Alloy heatsink, thermal overload speaker short protection and LED light indicator. These are to protect the amp and your vehicle's electrical system from short circuit conditions. RCA STEREO INPUT: For an easier use of this hydra marine amplifier, it comes with premium RCA inputs. If your marine receiver lacks RCA output jacks, you can connect speaker output leads to the high-level terminal inputs. PREMIUM 4 CHANNEL AMPLIFIER: Pyle’s PLMRA400 is engineered as a 4 Channel marine amplifier that allows high quality stereo reproduction from source. This will power up your speaker and be universally compatible with a variety of head units.Brand: Pyle. Mounting Type: Boat Mount. Voltage: 12 Volts. Item Dimensions LxWxH: 11.1 x 8.5 x 2.6 inches. Best Sellers Rank: See Top 100 in Electronics. Country of Origin: China. : B000N5T0T4. Manufacturer: Pyle. Date First Available: September 14, 2004. Department: Pyle. Item model number: PLMRA400. Product Dimensions: 11.1 x 8.5 x 2.6 inches; 3.9 Pounds. Is Discontinued By Manufacturer: No.