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Seventour 10" Upgrade 800W Slim Under Seat Powered Car Subwoofer

Curated from 57 real Reddit conversations

Refreshed on: February 11, 2025

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Seventour 10" Upgrade 800W Slim Under Seat Powered Car Subwoofer

Brand: Seventour
Price: $138
Snoop Score:
3.4
Sentiment
2.5
Popularity
1.8
Technical
3.9
Buy on Amazon for $138See All Subwoofers Reviews
As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Seventour 10" Upgrade 800W Slim Under Seat Powered Car Subwoofer is a compact audio upgrade designed to deliver booming bass while fitting snugly under your car seat. It combines a built-in amplifier with blue LED lighting for a stylish and dynamic look when your engine roars to life. User feedback reveals a divided camp; on one hand, the prefab kit is praised for its beginner-friendly setup, with one reviewer noting, “It appears to me like a product meant to look good and sell but I’d be very suprised if it performed,” while others remain skeptical about its actual performance and component quality. Critics argue that despite its impressive power specs on paper, the subwoofer may not deliver the expected rumble to truly shake up your ride. The sentiment is clearly mixed with enthusiasm for the ease of installation but doubts over lasting impact. Overall, if you’re seeking a subwoofer that delivers style and an easy install for casual car audio enhancement, this product might be a fun addition. However, for those chasing uncompromised performance, the concerns from the community suggest exploring other options within the category.

Not for you? Check out our other rated Subwoofers

Start off with something small and easy, like a powered prefab kit (box, sub, amp all together).

Positive Feedback

It appears to me like a product meant to look good and sell but I’d be very suprised if it performed.

Negative Feedback
Product
3.4
Seventour 10" Upgrade 800W Slim Under Seat Powered Car Subwoofer
Buy on Amazon for $138
Home Theater Systems
4 / 10
Studio Audio Production
3 / 10
Car Audio Enhancement
9 / 10
Gaming and Multimedia
3 / 10
See how this compares to all Subwoofers

What it does well!

Key strengths users can’t stop talking about.
Beginner-friendly installation and prefab kit
“Start off with something small and easy, like a powered prefab kit (box, sub, amp all together).”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.
Underpowered performance and questionable component quality
“It appears to me like a product meant to look good and sell but I’d be very suprised if it performed.”➕
“Will it rattle your neighbours windows? no.”➕

Compare On All Talked About Dimensions

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YAMAHA 8" 100W Powered Subwoofer - BlackYAMAHA 8" 100W Powered Subwoofer - Black$179
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YAMAHA Audio 10" 100W Powered Subwoofer - BlackYAMAHA Audio 10" 100W Powered Subwoofer - Black$199
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DetailsBuy
Seventour 10" Upgrade 800W Slim Under Seat Powered Car SubwooferSeventour 10" Upgrade 800W Slim Under Seat Powered Car Subwoofer$138
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BOSS Audio Systems CXX10 Chaos Exxtreme Series 10 Inch Car SubwooferBOSS Audio Systems CXX10 Chaos Exxtreme Series 10 Inch Car Subwoofer$41
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0.8
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Core Power Plays

The specs and strengths that make it shine.
Versatile performance and build quality of Seventour DSP
“Overall for the price I'm planning to use them as the main part of builds in older cars.”➕
“Just want something with better adjustment than a regular eq or even the head unit eq I have right now.”➕
“Get it and spend $50 to get an O-Scope to test it and the inputs you give it.”➕
“It actually works really well and the center channel on the DSP is very nice.”➕
Seventour P48E DSP unboxing and user engagement
“I’m very interested in this for a budget set up that I’m looking at trying to build.”➕
“If you have any questions involving the SEVENTOUR P48E DSP, all you have to do is shoot me a message, and I'll be happy to help you out with anything you may need.”➕
Flexible integration and DSP features in Seventour P48E for budget setups
“The good. The floor noise is better than my RF 3SIXTY.3.”➕
“So far, I like the dsp.”➕
“I was thinking of using this with the bluetooth feature to stream my sources from my phone, no head unit.”➕
“It will work great using the speaker high level lines.”➕
General insights on compact underseat subwoofer performance and installation
“I think i'll be satisfied with the reduced power of a compact underseat subwoofer though.”➕
“Think of them more as a cross between subs and mid-bass and you'll be very happy.”➕
“you have to have it firmly mounted to the metal under the seat so it is mated to the car and you can feel the vibration.”➕
Under seat sub installation and space challenges
“I just want a little low end.”➕
“I honestly miss the trunk space lol.”➕
“Thanks. Where did you mount it?”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Subwoofer wiring and wireless connectivity general advice
“As long as the subwoofers are similar, I believe you should be good (as a general rule).”➕
“I think they just market it as being wireless at costco because most people these days are more likely to purchase something if it wireless.”➕
“When you find yourself succumbing to wireless, its time to just go buy a sound bar lol.”➕
General subwoofer recommendations for beginners
“I've personally fell in love with the memphis viv 14" woofer with a 7" voice coils. And trust me... it's fucking loud.”➕
Benefits and considerations of inverted subwoofer installations
“Inverted gives you more airspace in the box since the sub is not taking up space.”➕
“No need to invert unless u lack space for a bigger box.”➕
“Benefits would be more room in box easy access to change final impedance.”➕
“worked amazingly well, hit 138.5 dB.”➕
General car audio buying and installation advice
“Your best bet would be to buy either in Amazon or crutchfield.com.”➕
“You could get a D4S mini max amp. 1000 watts at 1 ohm comes with a cool bass knob with temperature and voltage.”➕
“A single 10 or 12 in a sealed box any thing more and they won’t be able to hear very well later in life.”➕
Comparisons among subwoofer models
“If I were you, look into JL subs skip all these baby subs unless you’re using them on a stock sound system.”➕
“Bass head here.”➕
“it seems to do pretty good.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Missing RCA input option in Seventour DSP
“I did notice after I bought it that it doesn’t have rca inputs just speaker level.”➕
Concerns over long-term performance of Seventour DSP
“DSP's are definitely part of the "buy once cry once" category.”➕
Automated fake review detection mentioned in the thread
“Fakespot detects fake reviews, fake products and unreliable sellers using AI.”➕

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