BLAM RELAX MSA 20 - Extra-Slim Active Underseat Subwoofer
SKU: 49705165402

BLAM RELAX MSA 20 - Extra-Slim Active Underseat Subwoofer

Sale price$123.75 Regular price$137.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

BLAM RELAX MSA 20 - Extra-Slim Active Underseat SubwooferThe RELAX MSA20 20 cm extra slim subwoofer with integrated 240 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 65mm (66mm with Grill) the MSA20 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

The RELAX MSA20 20 cm extra-slim subwoofer with integrated 240 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 65mm (66mm with Grill) the MSA20 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.
  • 20 cm extra-flat die-cast aluminium subwoofer with integrated 240 W amplifier

Composition

  • Amplifier: Maximum power 240 W / Nominal power 120 W
  • Compatible with most original car radios
  • High level inputs with automatic start-up
  • RCA inputs
  • Frequency response: 50 Hz – 150 Hz
  • Bass boost (45Hz) adjustable from 0 to 12 dB
  • Fixed subsonic filter: 20 Hz
  • LPF (low pass filter): 50 Hz- 150 Hz / 12dB
  • Phase adjustment: 0/180
  • Supply voltage: 10 – 16 VDC
  • Extra-flat 20 cm (8″) subwoofer
  • Moving coil: 2 Ω 50 mm (2”)
  • Wired volume control (5 m cable)
  • Dimensions: W 290 mm x H 210 mm x L 65 mm
  • Weight : 3.9 Kg

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: 49705165402

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 2103 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
jaime
New York, US
★★★★★ 5
Overall good quality and works well for the price point
Size: 54mm Fits Breville Barista/Bambino/Infuser
Works well and does the job needed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
M
Verified Purchase
Matt K.
Grantham, US
★★★★★ 3
ya get what ya pay for.
Size: 58mm Fits Breville Dual Boiler/Oracle/Gaggia/E61
WDT tool came with bent needles and they are spaced too closely together and are too long to maintain position and bend way too easily and its receiver is a bit short and not weighty enough to be stable with its aspect ratio. Tamper purports to be a calibrated force tamper while it is a simpler spring-loaded depth-setting tamper ground distribution tool has a gap that gathers grounds if it is not perfectly closed. portafilter screen is pretty dang good the dose funnel chamfer is not at the same height as the rim of the portafilter, making me overfill for estimate fits my Casabrews Ultimate setup pretty well. blower bulb is woefully undersized to produce enough force to eject extraneous grounds
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
M
Verified Purchase
Mo
Carnegie, US
★★★★★ 5
Simple, high-quality solution that makes the transition from grinding to tamping much cleaner!
Color: Black, Size: 58mm, Color: Black, Size: 58mm
I wanted to streamline our espresso workflow. I added the Normcore Magnetic Dosing Funnel V2 to our kit because loading up the portafilter & using the WDT was causing a mess on the counter. This funnel stays put and looks great. is it required? No. Does it work great? Yes! The Good: What Works Well Rock-solid attachment: The magnets are impressively strong. It snaps onto the portafilter and doesn't budge. WDT’s Best Friend: It provides the necessary height to use a WDT tool without making a mess. Low Profile: Unlike some "tall" funnels, this one is compact enough to fit under many grinder dispensers while still attached to the portafilter. Premium Finish: The matte black anodized aluminum feels incredibly durable and matches high-end espresso gear perfectly. The Not-So-Good: Price Point: It is definitely a premium option. You can find plastic versions for less, but they won't have the same weight or magnetic security. Pro Tips: Maintenance: This is anodized metal; do not put it in the dishwasher. Just wipe it with a dry cloth or a dedicated coffee brush. Magnet Care: Keep the bottom magnets clean. If coffee oils or grounds build up on the magnets, the "snap" won't feel as secure. Compatibility: Make sure you pick the right size!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
E
Verified Purchase
Eric F.
Dallas, US
★★★★★ 5
Reduces Mess, Lightweight, Strong Magnets, Fit is OK
Color: Black, Size: 58mm
I've been stubborn about buying a funnel - yet another coffee tool to simplify and optimize, right? But, it really does reduce the mess when using the WDT tool. The magnets are quite good, a different brand funnel (with magnets) wouldn't even stick to my portafilter. The fit is OK - it does slide around on my 58mm basket if I move the funnel. But, that hasn't been an issue because the magnets keep it in place. The shape is also a bit more tasteful than most of the generic funnels. Oh, and beware - if you're grinding directly into your portafilter basket (hands-free), the funnel may not fit into your grinder's portafilter-holder. This was the case with my DF54 grinder. Overall, I'd say it was worth the extra ~$4 USD over generic competitors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
J
Verified Purchase
J. Kugie
Massapequa, US
★★★★★ 5
Great coffee dosing funnel
Color: Silver, Size: 58mm
Normcore products seem to all be high quality. This funnel works very well. Strong magnets hold it securely to the portafilter. My only small complaint is I wish it was just slightly taller on this 58mm version. Just a few millimeters of additional side height would be a great advantage at times when the fine ground coffee decides to come out of the dosing cup in a clump. This current model still makes it much better than with no funnel and does the job quite well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026

recommand products