Sound Storm Laboratories LOPRO10 Powered Under Seat Car Subwoofer – 1200 Watts Max, Single 2.6 Ohm,

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Your Sales Price $169.99 - $140.64

A quick rundown of this product’s key features:

Built-in Amplifier – With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies
Variable Low-Pass Filter – A low-pass filter is an electronic circuit that removes all the notes above the filter’s frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s)
High Level Inputs – Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs
Low-Level Inputs – Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers
Variable Bass Boost – Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
Specs – 15.5” x 11” x 3”. If you are short on space, this is a great solution for you. The combination of amplifier and subwoofer all into one, makes this ideal for spatially challenged vehicles. Weight: 13 lbs.
Warranty – Sound Storm provides a powerful 3-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality. Please ensure this model is compatibale with your vehicle before purchasing.

Our Top Reviews

Reviewer: General Bren
Rating: 5.0 out of 5 stars
Title: Excellent unit in a small box
Review: Sound Storm Laboratories LoPro8 InstallationApril 2014 – I installed this subwoofer in a 2014 Honda Accord Plug In using the stock radio and navigation system that came with the car. The subwoofer was placed under the passenger seat with a little room to spare as I wanted to keep everything as stealth as possible. This subwoofer has a built in amplifier and various controls for great bass and gives the music the extra punch it needs. I’m amazed this subwoofer doesn’t have a port but can still produce deep and strong bass levels for its size. I bought mine new from Amazon at $113. It’s near impossible to get to the back of the car radio without dismantling the entire dash so I chose not to do that and created an alternative to share.Before you get started, safety first. Be sure you put electrical tap on all exposed speaker and power wires. Be sure you put electrical tape in any area where they might touch another wire or connector. Wrap electrical tape around wires where they might rub anything and expose bare wire later on. Don’t add power to the subwoofer until you’ve double checked your connections and ready to test.For subwoofer power, I bought a 20 amp buss fuse holder at Home Depot and attached one end to the positive battery post. Use the battery in the engine, not in the trunk. Then open the passenger front door and there’s a plastic vertical panel next to the door hinge covering access to the quarter panel wheel well. I pushed a red 8 gauge wire through there to above the front right light assembly, then well above the radiator around the left light assembly to the battery. I attached the other side of the fuse holder to this wire. NO FUSE INSTALLED AT THIS TIME.Passenger front seat – foot area. There is one horizontal panel just above where the feet would be. That pulls down. The kick panel is that horizontal panel you step over when you enter into the car. That pulls up. There’s a vertical panel just right of the feet and that pulls off.The passenger door has a black rubber boot that feeds wires from the cabin. I made a small cut in the boot on the cabin side and fed the red power wire through the boot. I followed the existing wire harness along the kick panel and the wire comes up under the passenger seat. I patched the cut in the boot with some caulking. For the ground wire, I used black 8 gauge wire and attached it to the passenger seat mounting screws.This subwoofer has a third connection that tells the subwoofer to turn on when the car is turned on. Otherwise the subwoofer would have power all the time and drain the battery. I took a 12 Volt cigarette lighter charge adapter and cut the end off the cord. I ran the 12 volt power side to the subwoofer Remote connection. Do not connect this to the Remote Level Control on the other side.For speaker input, the subwoofer can use low end RCA cable input or high end speaker input. I chose the high end. At the passenger kick panel noted above, is a wire assembly. You’ll find a solid blue wire and solid orange wire, the rear right speaker. Splice in a 10 gauge speaker wire to these and route the rest under the passenger seat. I could not locate the left speaker wires so here’s my fix. I ran 10 gauge speaker wire from under the seat, to the back seat of the car, through one of the top child car seat anchor points to the left speaker. There, I put female spade connectors on the ends. About 2 inches back, I stripped the insulation off, and attached 3 inch leads with male connectors. I pulled the speaker connector off the speaker. I put the female connectors on the speaker and male connectors on the speaker connector.At this time, from under the passenger seat, you should have a red power, black ground, 2 speaker wires, and a cigarette adapter line.At the subwoofer… connect the speaker lines to the supplied connector. Be sure your polarity is correct. There is an extra ground wire on the connector, be sure to connect it to ground. Attach the red wire to power. Attach the black wire to ground. Be sure your polarity is correct here too. Go to the battery and install the fuse. Install the Remote Level power adjust cable and control. DO NOT CONNECT THE 12 VOLT CIGARETTE ADAPTER yet.HINT: Be sure your speaker polarity is correct. Using a spare speaker, you can attach one line to the speaker and ground the other side. Turn on your car radio with low volume. If you hear speaker sound, then that is the positive line. No sound, and the speaker hook up is the negative side. Turn off the car power.On the LoPro8, set the controls like gain, boost, etc to very low. Be gentle when turning. Turn full clockwise. Then turn full counter clockwise. Then turn clockwise about a quarter turn, about a 3 o’clock position. Do this to all 4. Do the same for the Remote Level Control. Power on the car. Power on the radio. Turn the radio volume to low. Now connect the cigarette adapter and look for a green light to show on the subwoofer. Look and smell for smoke and sparks and shut down immediately if you see these. Put on your favorite song on the radio and turn the volume up to just above where you can hear it. Adjust the Remote Level Control, volume of the radio, and the Gain first in small steps. Then fine tune using the other adjustments. For a few days, I placed my subwoofer on a box and kept in on the floor in the back seat until I could adjust the subwoofer settings just right for me.Before putting the unit under the seat, double check that your connections are tight but don’t overtighten where you’ll break something. Be sure to use electrical tape where you see exposed wires. There is a vent under the seat. I used a curved strip of aluminum foil to deflect the air around the subwoofer. When you push the subwoofer under the seat, don’t bind or pinch the wires. If the music still sounds good, and you don’t see or smell sparks or smoke in the car or engine, you can put back the panels you removed.The LoPro8 packs some good bass and extra punch to the Honda radio. I can see the rear view mirror vibrate when I have the volume up about 25; it goes to 40. Sometimes I like to play the music loudly and the LoPro8 is a great unit for the size and I am very pleased.Problems… The Honda radio has 2 microphones that listen to the noise in the car as it goes faster. At around 40 mph, rough roads, or windows down and cars rushing by, it causes the subwoofer to sound off on its own. I haven’t tried disconnecting the microphones yet. Secondly, the cigarette lighter adapter used to power on the subwoofer may need to be adjusted to something under 12 volts as it causes a slight pop on the subwoofer when the power is turned off. An easy fix with an in line resistor.

Reviewer: Matt Engelhardt
Rating: 5.0 out of 5 stars
Title: Great value, good sound for such a small package, fits under front seat of 2015 WRX perfectly
Review: This is not necessarily a great subwoofer, but it is a great value. As others have said, this is not going to put out enough bass to hear outside the car. In fact, I would be hesitant to buy this if I were installing it in a trunk. However, I was looking for something small to fit under the passenger’s seat in my 2015 WRX that would fill in the lower frequencies of my factory system and this worked perfectly. It took me about 2 weeks of tweaking the levels to get it setup correctly. Once I had it dialed in, it blended with the rest of my audio system very well and now sounds like I have a much more expensive audio system than I actually have. I did end up hiding the remote in my glove box so I would not have to look at the absurdly bright blue light, but that’s not a big deal because I rarely need to adjust it.When I first ordered this subwoofer, I was a little concerned about quality from other people’s reviews, specifically it overheating easily. But I have been using it for about 3 months now, during the peak of Florida summer heat, and I have not had a single issue. I do have the gain set around 30% of its max level and the bass boost turned way down as well, so I’m not pushing the amplifier as hard as others may. But at this point, I would be surprised if it failed on me for any reason.I have installed aftermarket sound systems in every car I have owned over the past 15 years so I have a lot of experience with car audio equipment. I don’t think there is a better compact subwoofer/amp on the market at this price point. I’m sure there are better options, but I would expect to pay 3x-4x as much for one of them. If you want to fill your car with the type of bass that drowns out all other frequencies, this is not the subwoofer for you. But if you are looking for something that will provide balanced bass at louder volume levels and hit lower frequencies than your door speakers can support, you will be hard pressed to find a better value.For anyone considering installing this in a 2015+ WRX, it is a perfect fit under either seat. There are pre-existing cutouts in the carpet to run the wires through, as this is where the premium factory system places their amplifier. You will have less than 1/4″ clearance between the seat rails, so the 10″ subwoofer will not fit. The seat heaters are a few inches away and would likely have no effect on the subwoofer’s performance. I recommend pointing the speaker towards the floor to insulate the seat from excessive vibration. I used an 8 ga amp kit, but only because I already had one. A 10 ga kit will supply enough power. You will need a line-out converter if you have the stock head unit. I used the PAC SNI-35 and it has been great. The sound quality is better than most and it fit behind the radio so I could leave the RCA cables there for when I do upgrade my head unit.

Reviewer: Kittelopa
Rating: 1.0 out of 5 stars
Title:
Review: Its not working and a cable is missing

Reviewer: A. R. Beech
Rating: 5.0 out of 5 stars
Title:
Review: Ordered this one to boost up my system , I just renewed all the speakers and brought a 75 pound head unit from JVC ( because I wanted a USB socket and a CD player…. This is a budget system in my car but now with the ad on of the sub woofer it sounds fantastic ! Oh and boys … dont forget to hook the remote to the head unit…

Reviewer: TARUN THOMAS
Rating: 5.0 out of 5 stars
Title:
Review: Worth your money and must say a quality product any day.I rounded this one based on online reviews of underseat 8inch subs. Its performance is top class even better than a pioneer underseat one when you compare prices.If your system has a sub out with controls its top notch.If its undistorted bass for those ears in the car (hatch back) its more than enough.More over its got all the controls on the sub that one needs and you also get a bass control to fit close to you to adjust for every song should you need to.The seller is prompt n responsive and i had no issues. In fact i got it nearly a week earlier than the expected date and neatly packed too.

Reviewer: 比嘉竜聖
Rating: 3.0 out of 5 stars
Title:
Review: 余韻が強くてボンボンしないかんじ

Reviewer: Javier G.
Rating: 5.0 out of 5 stars
Title:
Review: Hasta el momento no he tenido ningún inconveniente. Excelente sonido. Satisfecho

Price effective as of Mar 25, 2025 10:55:07 UTC

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