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Rockville

Rockville dB45 3200W 4-Channel 2-Ohm Car Amplifier, High-Speed MOSFET, Adjustable Crossover, LED, Remote Sub Control, Perfect for Car Audio and Subs | Dyno Certified, MOSFET Power Supply, Class AB, 2 Ohm Stable, Bridgeable, Adjustable Crossover, Bass EQ

  • Based on 707 reviews
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Availability: In Stock.
Fulfilled by Audiosavings
Arrives Aug 30 – Sep 1
Order within 11 hours and 26 minutes
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Style: 4 Channel


Features

  • High Power Output: Delivers 3200W peak power, 800W RMS, with 200W x 4 channels at 2 ohms and 135W x 4 channels at 4 ohms, providing robust and clear audio for your car's subwoofer system.
  • Advanced Sound Control: Features fully adjustable 12dB/octave crossover, subsonic filter, and 12dB bass equalizer for precise audio tuning.
  • Efficient MOSFET Technology: High-speed MOSFET power supply ensures stable and efficient performance, enhancing overall sound quality.
  • User-Friendly Design: Includes remote dashboard subwoofer control, LED-illuminated logo, and RCA line input/output for flexible installation and easy operation.
  • Comprehensive Protection: Equipped with IC-controlled protection circuitry to safeguard against overheating, voltage fluctuations, and short circuits, ensuring long-lasting durability.

Description

Includes: Description: The dB45 is a 4 channel amplifier with 3,200 watts peak output and 800 watts Dyno Certified power. 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. The peak rating can be used to compare with brands who use peak ratings such as Boss and Power Acoustik while the Dyno Certified RMS rating can be used to compare with top brands such as Kicker, Rockford, Alpine, etc. This amp has a fully adjustable 12dB/Octave crossover with differential circuitry. Other features include a subsonic filter, a fully adjustable bass equalizer, and mute and delay soft start technology. The dB amps by Rockville use the top parts and components recommended by Rockville’s very own engineer. These amps are the best sounding out of any series we have ever created. They perform more efficiently resulting in even dB of sound. We created them to be 2 ohm stable just like the world’s most famous amps by Rockford Fosgate, Kicker, etc. If you compare our amp to the most famous amps you will find our amp can compete and, in my opinion, surpass the performance of anything in its class. Each and every amplifier we manufacture is tested twice. Once at the semi-finished PCB stage of production, and then another test is done at the final assembly. We also run age tests on them. After this is all done, we hire a 3rd party independent company unaffiliated with our factory or with us to go to the factory and inspect 20% of all the production items. Features:

Manufacturer: Rockville


Brand: Rockville


Number of Items: 1


Built-In Media: Amplifier


Item Type Name: Car Amplifier


Item Weight: 14.4 pounds


Model Number: dB45


Mfr Part Number: dB45


Unit Count: 1 Count


Warranty Description: 1 YEAR


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 30 – Sep 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Solid performance, awesome budget amplifier!
DB 45 is an awesome budget amp! Replaced a couple Boss amps that I didn’t do my research on first (amplifier benchmarking) and I spent less money on this and then I did for the other two. Rocksolid amplifier. It does warm up pretty quick when you’re pushing it but it did not get hot. Very happy with the purchase. Only problem I have is that when using the low pass option for a sub there is no sub sonic filter. At least not adjustable, I was playing 19 hz tone to my sub and it was flopping pretty good with no audible sound. Was hoping it would have sub sonic filter set for either 15 Hz or 25 as an option. Update 8/9/2019: I've had this amplifier now for around 10 months now and it's still going strong. Have it hooked up through a pair of 50amp AC to DC power supplies in my garage powering 2x 400w RMS Floor Speakers and a 425w RMS Polk Audio 15" Sub. It definitely pushes out the rated power (as dyno benchmarks have also confirmed they hit around the rated CEA RMS power as stated). Extremely loud and clear music (my neighbors can affirm this too... ). I have a couple other car amplifier / custom sub installs in my house where I still have poorly rated amps and I'm looking forward to purchasing more Rockville products to replace those amplifiers very soon. They will not disappoint! ... show more
Reviewed in the United States on December 14, 2018 by Jonathan R
    • Rockville 3200w
Low price, great features. One thing I really like about is that despite being so affordable you still get the great features you need for hard-hitting, clear bass. Speaker and wiring terminals are higher quality than other models in its price bracket and offer tight, clean, reliable connections. adjustable low pass hi pass crossover. RCA output jacks make system expansion even easier, too! I’m not just impressed by the great value of the amp but the features you get, too. I’m impressed that such an inexpensive, solid amp still offers features others don’t. ... show more
Reviewed in the United States on March 14, 2020 by Dare2000
    • works great as rated
Worth the price. Used amplifiers in the 90's and been out of the car audio world for quite a while. I ended up buying a sound stream amp because they were all the rage in the 90's only to find they are not so good now. It was blown anyways on a channel from the start. So went looking for an alternative that was as advertised. This comes with a dyno sheet from the actual test for the individual amp. I just have it hooked up as a 4 channel amp so can't say much on running it for a sub. It works great for what I use it for but is quite large. It doesn't really fit under the front seat but that's where it is. ... show more
Reviewed in the United States on September 27, 2025 by Sandy
    • Quality
These amps are solid! I can't believe how good they are for the price!
Reviewed in the United States on March 6, 2026 by Justin Pramann
    • Rockville 3200w
Sounds great just what my speakers needed in my rzr will be ordering another one once my door speakers an pods arrive. Highly recommend if putting in a rzr also get pro 4 noise cancelation adapter with it you won't be disappointed.
Reviewed in the United States on November 6, 2025 by Jeremy Sanchez
    • The true ratings.!!!!
I like the appearance, the price, it works well if you follow the ratings. I have a clipping point, and I've not done testing yet to find the source, and at what levels. But I will so I get the max from this amp. I really like the CEA certification, if it's true that's very respectable. I don't see that with others. I can't wait to get fully dialed in, but just a first run useing my ears, so far it's kicking ass for the price.!! ... show more
Reviewed in the United States on October 3, 2018 by Amazon Customer
    • Kept going into protection
Let me start by saying I have been installing car stereo equipment since I was in fifth grade and I am now 41. I sold car stereo equipment out of my house as a kid because I was able to get it wholesale and installed it for free with purchase. Everything about this installation was correct. I had this powering 4 midranges and 4 bullet tweeters at 2ohms. The sound quality was good. The only problem was it began cutting off and going into protection on my first cruise on high and low volume so I gave it a few day trial and it continued to be an issue. I uninstalled the db45 and sent it back and replaced it with the Rockville krypton F2 amplifier. The krypton is hooked up to the same wires and zero issues. I think they just didn't get the db series amps right. I also have the krypton M5 powering 4 12s with no issues. From my experience the krypton amps are reliable, neither of them have ever went into protection. If you are going to go with Rockville I would recommend their krypton line of amplifiers. They seem to have gotten those ones right. ... show more
Reviewed in the United States on December 12, 2021 by Warren
    • Bang for buck!!!!
Update: 9-1-19 Amp gets pretty hot. Sending it clean signal without clipping. Gains are just below halfway mark. I think mines has a defect and I contacted customer care so I’m waiting on their response Was very skeptical on getting this amp but after I saw the dyno test from budget gem or budget bust on YouTube with numbers a little over rated numbers I had to get it. My birth sheet says 150x4 @ 4ohms and 217x4@ 2ohms I’ve notice the 4 channel I received the filters said hpf/fp/lp-bpf and I thought I didn’t see this on any of their db45 amps online so I called them and the guy told me that it’s their newer version which includes a bandpass filter. Bandpass filter will let you fine tune your speakers by allowing you to set your high pass filter to your lowest hz you want your speaker to receive and use the lowpass filter to set the highest hz you want it to receive. Example: if you choose lowpass/bandpass and set the high pass knob (labeled subsonic) to 80hz and set the lowpass to 2k your speaker will only receive from 80hz to 2k. It does get pretty warm to almost hot My gains are a smudge over half way ... show more
Reviewed in the United States on July 29, 2019 by Mopar_392TA

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