SKU: 52001092667

BLAM RELAX MSA 25 P - Extra-Slim Underseat Subwoofer With Integrated Amplifier

Sale price$166.95 Regular price$185.50
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

BLAM RELAX MSA 25 P - Extra-Slim Underseat Subwoofer With Integrated AmplifierTHIS ITEM IS A SPECIAL ORDER WHICH MEANS IT CAN TAKE UP TO 2 WEEKS FOR DISPATCH. PLEASE NOTE ONCE WE HAVE ORDERED WE ARE UNABLE TO CANCEL YOUR ORDER. The RELAX MSA 25 P 25cm extra slim subwoofer with integrated 360 W amplifier from BLAM makes it easy to improve the quality of your original audio installation by adding bass without reducing too much space in the vehicle. At a height of only 68mm (78mm with Grill) the MSA 25 P slim design allows for

THIS ITEM IS A SPECIAL ORDER WHICH MEANS IT CAN TAKE UP TO 2 WEEKS FOR DISPATCH. PLEASE NOTE ONCE WE HAVE ORDERED WE ARE UNABLE TO CANCEL YOUR ORDER.

The RELAX MSA 25 P 25cm extra-slim subwoofer with integrated 360 W amplifier from BLAM makes it easy to improve the quality of your original audio installation by adding bass without reducing too much space in the vehicle. At a height of only 68mm (78mm with Grill) the MSA 25 P slim design allows for easy installation in multiple locations throughout the vehicle. It fits perfectly under the seats of a van or SUV, or even on the rear bulkhead of a convertible or pickup. The sound will be immediately more powerful and enveloping, creating a new listening experience that will transform your simple journeys into moments of pure pleasure. 

What are the benefits of under seat subwoofers?

Under seat subwoofers are a fantastic solution for anyone looking to enhance their vehicle's audio experience without compromising on space. These compact devices are ingeniously designed to fit snugly under your seats, delivering powerful bass without overwhelming your cargo area. This makes them an ideal choice for sedans, SUVs, and trucks alike, where trunk space can often be limited.

One of the greatest advantages of under seat subwoofers is their ability to significantly improve sound quality. They are engineered to produce deep, rich bass that elevates music enjoyment, whether you're a fan of booming hip-hop beats or intricate jazz arrangements. With easy installation options, many drivers can upgrade their sound systems without needing extensive modifications or professional assistance.

Aside from their performance benefits, under seat subwoofers also maintain a clean aesthetic in your vehicle. Unlike traditional subwoofers that can take up considerable space, these sleek units blend effortlessly into your car's interior. The result? You can enjoy vibrant sound quality while preserving the minimalist look of your vehicle without cluttering your trunk with bulky equipment.

In conclusion, if you're looking to boost the bass in your vehicle's sound system while keeping your cargo area versatile and spacious, an under seat subwoofer is an excellent choice. It’s a perfect blend of functionality and design, catering to audiophiles and everyday drivers alike.

Technical Details

  • Complete solution to easily add bass to an original system
  • Extra-flat 25cm die-cast aluminium subwoofer with 360W integrated amplifier.

Composition

  • Amplifier: Maximum power: 360W / Nominal power 180W
  • compatible with most original car radios
  • High level inputs with automatic start-up
  • RCA inputs (6V compatible)
  • Frequency response: 50 Hz – 150 Hz
  • Bass boost (55Hz) adjustable from 0 to 12 dB
  • Fixed subsonic filter: 20 Hz
  • LPF (low pass filter) 50Hz-150Hz / 12dB
  • Phase adjustment: 0/180
  • Supply voltage: 10.5-15.0 VDC
  • 25cm (10″) extra-flat subwoofer
  • 2 Ω voice coil: 50 mm (2″)
  • Wired volume control (5m cable)
  • Dimensions: L 345 mm x h 245 mm x l 70 mm
  • Weight: 5,5Kg

Supplied Accessories:

  • Instructions for use
  • Wired remote control
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 52001092667

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4.5 ★★★★★
Based on 8 reviews
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Verified Purchase
Luis s.
Louisville, US
★★★★★ 5
Buen producto
Color: Upgraded Version - Gray
Execelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
A
Amazon Customer
Pawtucket, US
★★★★★ 5
Mag-Safe Magnetic
Great product! The MagSafe compatibility is perfect—it snaps right on instantly. I prefer this over the wireless charging mounts because those always seem to overheat my phone on long trips. This is lightweight, stable, and the all-black aesthetic blends right into the Tesla screen frame. 10/10 for any Tesla owner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
S
SuperBanker
Lake Worth, US
★★★★★ 4
Perfect Little Mount for Tesla Drivers
I like that this Tesla phone mount snaps onto the back of the screen cleanly and holds my iPhone with a strong MagSafe grip. It keeps the phone right where I need it without blocking the view, and the adjustable angle makes navigation super easy to see while driving. I do not like that it can wobble a tiny bit on rough roads, and the magnet isn’t as strong if you’re using a thicker case. Overall, a great accessory that makes the Model 3/Y setup even more convenient!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025
P
photogirl5
Chelsea, US
★★★★★ 5
Tesla MagSafe mount for phone
Very cool phone mount that I hadn’t thought to purchase until I saw it as an option on Vine. Easy to install using the included adhesive strips pre-attached to the mount. It has a nice firm grip on the MagSafe for the phone and the mount itself sticks very well to the back of the Tesla screen with no issues. It is in the perfect location in the dashboard area as it doesn’t block any view or buttons. No negative aspects to my experience with this product.
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Reviewed in the United States on December 21, 2025
J
J. Youm
Chelsea, US
★★★★★ 4
Arm can be positioned in many ways, but doesn't grip as hard and the phone rattles in rough roads
I liked how this product looked in the picture so I ordered it. But when I installed it, I found out that it doesn't have the same amount of "grip power" because you have to turn a little knob on the side to tighten the grip and it's not that easy to do compared to other screw type phone mounts that have bigger screws. The magnet was slightly weaker than my existing phone holder but it was adequately strong. It was good to see how one could position the phone in different positions due to the way the arm is designed to be moved and adjusted. But the one biggest thing I didn't like is how the phone kept on shaking/rattling when I drove over rough roads. The metal arm is quite thin and although it's metal and not plastic, due to the thinness of the material, it was easily rattled and made the phone rattle a lot in return. Over smooth roads this won't be a big problem though. I wasn't quite satisfied with this, although it's adequately good enough.
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Reviewed in the United States on October 3, 2025

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