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Your cart is empty.Rockville DBM45 2000 Watt Class-AB 4 channel Marine amplifier with terminal covers. Ceca compliant Power Ratings: . 2 Ohm: 125 Watts x 4 channel. 4 Ohm: 85 Watts x 4 channel. 4 Ohm Bridged: 250 watts x 2 channel. Rms Power Ratings: . 2 Ohm: 250 Watts x 4 channel. 4 Ohm: 170 Watts x 4 channel. 4 Ohm Bridged: 500 watts x 2 channel. Peak power ratings: . 2 Ohm: 500 Watts x 4 channel. 4 Ohm: 340 Watts x 4 channel. 4 Ohm Bridged: 1000 watts x 2 channel. Painted conformal coating PCB board (uses 2577 waterproof glue). waterproof silicone covers for end panels. Rustproof aluminum heat sink with white painted finish. Stainless steel end panels are rustproof. All screws and mounting hardware are stainless steel and rustproof. Bottom panel is aluminum and rustproof. All channels on the amp have crossovers so they can each be used for subs or full range speakers or tweeters or midrange speakers. All channels on the amplifier are bridgeable. Fully adjustable 12dB/ Octave Crossover with differential circuitry. Adjustable subsonic filter: 15Hz -40Hz (This filter is on the HPF knob). adjustable low pass filter: 40Hz – 4Khz. Adjustable band pass filter: 15 Hz - 4 kHz (use both the HPF and LPF filter). adjustable high pass（ subsonic） filter: 15 Hz - 4 kHz (use both the HPF and LPF filter). fully adjustable 12dB bass equalizer. 2Ch/4Ch input mode switch. Status mode LED indicator. Adjustable input level control. Mute and delay soft start system. Minimum THD at rated power: 90 dB. Frequency response: 10 Hz - 50 kHz. Damping factor: >85 @ 100Hz. (2) 35 amp ATC fuses. High-speed MOSFET power supply. Studio-grade BIPOLAR Output stage transistors. 8 volt Preamp circuitry. 35 amp x2 ATC fuse. Microphone input and PA Microphone included. Product dimensions (w x H x L): 9˝ x 2. 4˝ x 15. 1˝ inches. Product weight: 7. 7 lbs
William Aaron
2025-08-22 19:51:57
I’ve got this amp on 4 ds18 loud speakers in my jeep wrangler.Got another one on 6 ds18 loud speakers in my excursionAlso have one on my rzr pushing 4 skar marine grade 6 1/2Waterproof is correct I’ve pressure washed it and it still worksOnly complaint is the mic they offer with it is trashUnderrated in my opinion a friend has one pushing 6 tower speakers and you can’t stop it
Dennis Cochran
2025-08-12 17:15:15
Unbelievably loud and clear for the price. I'm not sure why the cost is so low for an amp that puts out so much power. It may not have the big brand names as the others, but for the price you pay and the power you get, it can't be beat. I've been installing stereo systems for many many years on my customers boats and this has proven to be a good amp over and over and over.
Joe
2025-06-26 14:21:08
Easy install and works great for the cost. Gets really hot even with correct guage wires so I had to install a bilge blower in the center console where the amp is located to cool it. It turned off once before I installed the blower due to overheating but since I put in the blower I have not had any issues. (July-Sep NC coast.)
Dustin Evans
2025-05-26 12:18:20
Great price and great quality for what I needed on my boat. I have 4 - 7 inch speakers that sound great.
fiore a.
2025-04-26 11:56:28
I highly recommend this amp. I do have to get better speakers that can handle the power. Chose a speaker that can handle power and you'll be very happy!!
agustin
2025-04-05 13:34:27
High sound quality. Mounted it for my sxs. It has plenty of tunable settings. It's a class AB therefore it'll get warmer than a class D. But it sounds better.
Joe v.
2025-01-04 11:47:13
I bought this amplifier to use in my boat and have only taken it out three times since I’ve installed it. One of the channels is no longer working!
Robert Bryan
2024-11-22 21:59:28
Very good while they were bang for your buck
Sean
2024-11-12 21:41:46
Purchased all of my boat audio equipment from Rockville. I was pleased with the ease of installation and the quality look of the product. The sound is fantastic, crisp clear audio. My 2000w amp can easily power my subwoofer and 4 speakers. 10 of 10 would recommend.
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