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Description
Bass Package 2 X SLC-MD12 In a Ported Box with S-1500.1/RD Amplifier and 4-GA Amp Kit 250 Watts RmsDS18 LSE 212A Bass Package 2 X SLC MD12. 4 In a Ported Box with S 1500. 1 RD Amplifier and 4 GA Amp Kit 1000 Watts Looking for that perfect bass package but are overwhelmed by all the options? We have made it easy with our loaded subwoofer box the LSE212A! This is a prefabricated box that comes with a pair of some of our best selling subwoofers. Included is a beautiful carpeted box with DS18 designs tuned to 35 hz. The box is constructed by thick 1 2
DS18 LSE-212A Bass Package 2 X SLC-MD12.4 In a Ported Box with S-1500.1/RD Amplifier and 4-GA Amp Kit 1000 Watts
Looking for that perfect bass package but are overwhelmed by all the options? We have made it easy with our loaded subwoofer box the LSE212A! This is a prefabricated box that comes with a pair of some of our best selling subwoofers. Included is a beautiful carpeted box with DS18 designs tuned to 35 hz. The box is constructed by thick 1/2 MDF for great sound and resonance. The subs included are the very popular MD12.4's that are single voice coil 4 ohm subs wired in parallel for a final nominal impedance of 2 ohms that will require 500w rms. This loaded box is a great entry level solution to hard hitting heavy bass for all to enjoy.
Highlights
- The box is constructed of 1/2 inch MDF for great strength, resonance, and tuned to 35hz for low hitting bass.
- Two SLC 12 inch subs will give you the cone area to push out great sounding bass without a lot of power requirements.
- Great design and carpeting with DS18 logos to give your system the flair it deserves and also brings a show quality look.
What's in the package?
-
S-1500.1 AMPLIFIER
| Amplifier | |
| Circuit Topology | Class AB Monoblock Amplifier |
| RMS Power Output @ 2 OHMS | 350 watts |
| RMS Power Output @ 4 OHMS | 220 watts |
| Total Harmonic Distortion | < 3% |
| S/N Ratio Ref 1w @ 4 OHMS | >90db |
| Gain Range | 0.2-6V |
| Crossover Range | 50-250hz |
| Frequency Range | 20Hz-500 Hz |
| Dimensions | 13.7/348mm x 5.8/148mm x 1.8 / 47.5mm |
- 4-GA AMP KIT - 500 WATTS
- AGU Fuse Holder With AGU-100A
- 6ft. 4GA Loom Tube
- Rubber Grommet
- 17ft. Red Power Cable: 21mm² OD: 10mm
- 3ft. Black Ground Cable: 21mm² OD: 10mm
- 17ft. Red/Black Twisted RCA Cable
- 17ft. Turn-On Cable: 20*0.15mm
- 17ft. Red/Black Speaker Cable: 1.31mm² x 2 wires OD 3.2 x 6.4mm
- SLC-MD12 IN A PORTED BOX
| Model: | SLC-MD12 |
| Type: | Subwoofer |
| Size: | 12" |
| RMS Power: | 250W |
| MAX Power: | 500W |
| Impedance: | 4 |
| Voice Coil Size: | 2" |
| Magnet: | Ferrite |
| Magnet Size: | 42oz |
Technical Details
| General | |
| Speaker Size | 2 x 12" |
| Total Impedance | 2 ohms |
| Total RMS Power Handling | 500 watts |
| Total MAX Power Handling | 1000 watts |
| Sensitivity (1w/1m) | 96db |
| Frequency Response | 29-250hz |
| Recommended Lo Pass Crossover | 80 Hz |
| Subwoofer | |
| Voice Coil Diameter | 50.8mm (2) |
| Voice Coil Former Material | Aluminum |
| Winding Material | ACCAW |
| Cone Material | PPI |
| Surround Material | Rubber |
| Basket Material | Steel |
| Magnet Material | Ferrite |
| Magnet Weight | 42oz |
| Box Specifications | |
| Port Tune | 35hz |
| Dust Cap Material | 45.3L |
| Load Configuration | Front Ported |
| Box Material | 1/2" MDF |
| Finish Material | Vinyl |
| Measurements | |
| Height | 13.78 / 350mm |
| Width | 38.58" / 980mm |
| Depth 1 | 11 / 280mm |
| Depth2 | 14 / 356mm |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 4
Awesome, inexpensive alternative to name-brands!
Size: 36 sqft
Awesome. Stuck well with alcohol prep and time to let liquid flash-off. Very consistent, piece to piece. Backing peeled easily when desired. Compared to Amazon Basics, the butyl seemed a little thicker (infinitesimally) and stickier, foil was less thick than Amazon Basics. Very good value. Started with my nice car, but after completing project, sound dampened all cars in the immediate family it made such a noticeable difference in sound level and quality of music from soeakers. Recommended!
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Reviewed in the United States on October 21, 2025
★★★★★ 5
Easy to use
Size: 36 sqft, Size: 36 sqft
Very good and easy to use, made my 88 Chevy feel better
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Great sound deadening material with easy installation.
Size: 36 sqft, Size: 36 sqft
This sound-deadening mat was easy to install on the roof of my Toyota FJ Cruiser. It significantly stiffened the roof and dramatically reduced the wind noise inside the vehicle caused by my roof rack and lights. I can actually carry on a conversation again without shouting while driving on the freeway.
The 36-square-foot package was enough for my application, with about three sheets left over. The tiles adhered well to the metal without any special surface preparation. I only wish I had done this sooner.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Siless Hybrid 3-in-1 - Far Exceeded my Expectations!!!
Model: SLH20025
I recently installed the Siless Hybrid 3-in-1 sound deadening mat in my vehicle, and I’m genuinely impressed. For just $80 for 25 square feet, this product delivers performance that rivals materials costing twice as much — and with far less hassle. If you're on the fence......Just buy it! You will not be disappointed.
Easy to Install: Unlike traditional sound deadening products that are stiff, sharp, and temperature-sensitive, this mat is soft, flexible, and easy to work with. I cut it cleanly with regular scissors and pressed it into tight spaces using just my fingers, so if in you don't have a roller or install tool, a good pair of scissors and your hands can get the job done. With other brands like Dynamat, the aluminum layer often leaves micro cuts on your hands and tears up your fingertips, but Siless does not due the acoustic layer being on top and above the aluminum layer that holds the butyl layer. So, it's very easy on your hands.
Even in cooler temperatures (around 50°F), I had no trouble applying it but it goes on better heated. If warm outside, I would leave the entire box out in the sun for at least 30 minutes when it's warm or heats it's very pliable and easy to mold. Make sure its where you want it because once applied it's not ever falling off. and it became even more pliable and easy to mold. No heat gun, no mess — just straightforward application.
I installed 40–50 square feet throughout the interior, covering everything except the headliner and the flooring forward of the rear seat. The difference in cabin noise is astonishing. I can turn my radio up concert loud with gut-punching bass, and from outside the car, it sounds like a factory sound system at mid volume. I was blown away by how well it contains sound — both inside out and outside in.
My exhaust is pretty aggressive and now is barely audible from inside the cabin. While driving, it almost sounds like a stock factory setup. The Siless matting actually changed the driving experience and feels refined.
If you're skeptical about sound deadening gimmicks, I get it, but this is the first product I've used and when I needed more, I went Stright to the 3 in 1 Hybrid matting and purchased it again. I love researching before buying and that's very uncommon for me to do.
Note: Proper installation is key, and it does take time and patience. But if installed correctly and in the right places, it works better previously used from paint-on sound deadening to Dynamat.
Update Nov, 2025
After using it this in 4 separate vehicles now. I feel the Siless’s 3 in 1 Hybrid has nailed it for best budget deadener that is better than dynamat extreme in performance and installation
Protip: buy a roll of 2-3” aluminum tape and tape the seams. After trimming the edges tend to very sticky between the panels. I ran a strip of aluminum tape over the seems to create a better seal and true moisture
I used it on four vehicles now and have I have not been paid to review and purchased every order myself.
3 in 1 Hybrid deadener by Siless is the best all around easy to apply sound deadner period!
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Top quality
Model: SLH20025
This Siless Hybrid 3-in-1 sound deadening mat is easy to work with and feels high-quality. The butyl material is thick and pliable, making it simple to cut and fit into doors, floors, or panels.
After installation, road noise and vibrations are noticeably reduced, and it also seems to improve the overall cabin feel. No bad smell.
At 25 sq ft per roll, it’s a good value for anyone looking to dampen noise and improve car acoustics. Overall, a solid, effective option for automotive soundproofing. Used on a Fiesta ST.
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Reviewed in the United States on February 15, 2026