8" Amplified UnderSeat Subwoofer 300 Watts Rms

Name: 8" Amplified UnderSeat Subwoofer 300 Watts Rms
Brand: SQBASS8
SKU: SQBASS8
Price: 275.95 USD
Availability: InStock
Rating: 5.0 (5 reviews)

SKU: SQBASS8

DS18 SQBASS8 8" Under Seat Amplified Powered Car Subwoofer 600 Watts.

8" Amplified UnderSeat Subwoofer 300 Watts Rms

SKU: SQBASS8

$275.95

/EACH

Ships Free Next Business Day From Miami, FL, USA

In stock

Quantity:

Drop a Hint

Key Features
- 8" Subwoofer Enclosure
- Amplified with Subwoofer Control Knob
- RMS Power: 150 Watts(800 Watts Peak)
- Impedance: 2-Ohm
- Under Car Seat
- 79dB
Technical Data - Manual

DOWNLOAD THE USER MANUAL

SPECS

SKU
SQBASS8
Speaker Type / Size
8"
Total RMS Power Handling
150W
Total MAX Power Handling
800W
Sensitivity (1w/1m)
79dB
Frequency Response
36-300Hz
Remote Knob cable length
16ft / 5m
Remote Knob Adjust Range
0-30dB
Auto Turn-On
Yes, Signal Sensing

Speaker Specifications

Cone Material
Polypropylene
Surround Material
Rubber
Basket Material
Steel
Magnet Material
Ferrite
Body / Housing Material
Aluminum

Amplifier Specifications

Amplifier Class
Digital
Amplifier Type
Subwoofer Monoblock
Number of Channels
1Ch
Minimum Impedance
2ohm
Signal to Noise Ratio
>80dB
Total Harmonic Distortion (THD)
<0.5%
Low Level Input Range
0.1-3.5 Volts
High Level Input
0.3-10 Volts
Selectable X-Over
LPF Fixed
X-Over Filter Range
50-150Hz
Bass Boost Range
0-12dB
Bass Boost Frequency
50Hz
Infrasonic Filter
30Hz Fixed
Phase Selector
0-180
Led Indicator
Power/Protect
Power Input Terminal Size
8Ga
Fuse Size
25A
Remote Level Control
Yes, Included
Thermal Protection
Yes
Over-Load Protection
Yes
DC Output Protection
Yes
Short Circuit Output Protection
Yes
Voltage Input Protection
Yes

Measurement

Overall Height
3" / 77mm
Overall Width
9.64" / 245mm
Overall Length
11.42" / 290mm
Gross Single Unit Weight (lb)
13
Single Unit Box Dimensions W x L x H (Inches)
16.75 x 12.5 x 5.75
Quantity of Units in Master Carton
2
Gross Master Carton Weight (lb)
27.5
Master Carton Dimensions W x L x H (Inches)
17.5 x 12.5 x 13.75

Load More Show Less
Product Overview

Product Overview

SQBASS8

8” Amplified Under Seat Car Subwoofer 600W

Bring the heart pounding bass you crave to any vehicle with DS18’s SQBASS8! This game-changing subwoofer will redefine your in-car audio experience!
The SQBASS8, engineered with a slim and compact design to bring bass to all builds, handles a mind-blowing 150W of RMS power. This allows the true force of the SQBASS8’s impressive frequency response ranging from 20Hz to 150Hz to be felt. This subwoofer brings an unmatched depth and richness to all your favorite tracks.
Although extremely powerful, the SQBASS8 also exemplifies the DS18 standard of precision and control in your audio system. The SQBASS8 features a state-of-the-art, digitally optimized subwoofer with a built-in 2-Ohm amplifier, ensuring unparalleled efficiency and accuracy in bass reproduction. To further elevate the SQBASS8 experience, the experts at DS18 have included a bass remote control, placing you in the driver’s seat of your build’s audio. Fine-tune your bass to match every song and mood.
When it comes to performance, the SQBASS8 reigns supreme. The versatile input sensitivity ranges from high level 300mV-10V to low level 100mV-3.5V, accommodating a wide array of audio setups with ease. With a fully adjustable low pass filter spanning from 50Hz to 150Hz and a bass boost range of 0 to 12dB, you have complete control over your soundstage, and the ability to make your bass perfect.
What sets the SQBASS8 apart from its competition is its ability to seamlessly be integrated into any build without sacrificing space or sound quality. DS18’s engineers design products for their family of audio enthusiasts, ensuring that even with limited space, you will feel the thunder of every heavy bass note.

FAST FREE SHIPPING

30-DAY RETURNS

2 YEAR WARRANTY

SECURE PAYMENT

DS18 SQBASS68 6X8" Under Seat Amplified Powered Car Subwoofer 600 Watts

SKU: SQBASS68 6X8" Amplified UnderSeat Subwoofer 150 Watts Rms

$227.95

6x8" Subwoofer Enclosure
Amplified with Subwoofer Control Knob
RMS Power: 150 Watts(600 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
77dB

6x8" Subwoofer Enclosure
Amplified with Subwoofer Control Knob
RMS Power: 150 Watts(600 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
77dB

-$41.40 instant savings

DS18 SQBASSx2 7x9 Under Seat Amplified Powered Car Subwoofer with a 4x6 Radiator 1200 Watts

SKU: SQBASSx2 7x9" Amplified UnderSeat Subwoofer with a 4x6 Radiator 230 Watts Max

$234.55 $275.95

7X9" Subwoofer Enclosure
Amplified with Subwoofer Control Knob
RMS Power: 230 Watts(1200 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
80dB

7X9" Subwoofer Enclosure
Amplified with Subwoofer Control Knob
RMS Power: 230 Watts(1200 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
80dB

Love it!

Feels really solid. Made a night and day difference. Fit great under the seat of my obs.

Wow thing is amazing!! Perfect for my 22 Tacoma extra cab. Surpassed my expectations and some!! I need seat risers to make it fit under seat too much electronics there

Wow it crushed my expectation

Shit thumps for a little thing!! Installed behind my seat in 22 Tacoma xtra cab truck cause it wouldn’t fit under seat. Almost glad because it hits so hard I wouldn’t want it under my seat. Maybee under my chicks seat!! Lol

WOW!,,

Very pleasantly surprised!
Purchased on a whim for a JK Wrangler base stereo with an aftermarket head unit. Easy to wire.
Will need to build brackets for under the passenger seat, BUT, so far, this thing is surpassing any expectations I had for such a small, compact unit! It actually shakes the mirrors! More than was expected at this price point for sure!!!

Great sound!!

Sub installed perfectly under passenger seat and has huge sound for a small package!! Love it!!

Let customers speak for us

from 3729 reviews

Best shallow mounting sub

Put these in my ram 1500 under the rear seats, I don’t have much space, these bump. Great travel/clean cut base/they look nice. Currently have them hooked up to a 800x1 kicker amp on a low setting for break in and am going to put in ds18’s 2500x1 amp, they can take a lot of abuse, personally I’d say best shallow mounting sub for the money, I’ve been thru a few! Hit like there a big magnet deep mounting sub!

Knowlton

07/13/2025

IXS Shallow-Mount 10" Fiber Glass Subwoofer 600 Watts Rms DVC 2-Ohm

Gen-x

Great amp

Cody Dillon

07/11/2025

GEN-X Full-Range Class D 4-Channel Amplifier 4 x 150 Watts Rms @ 4-ohm

I love these 4 inch tweeters

I love them they sound great along with the looks I have to say that I don't agree with the filters that they come with I feel that they do distort a little bit and so I gotten the 4.7uf 100v and that cleaned them up Alot on clarity the ones that come with these tweeters are 4.7 UF 250v if you change them to the ones I have you won't be disappointed these tweeters perform beautiful highs I have the paired with my pro x 6.5 witch I'm planning to get another pair of the mids in future !

Bassn413

07/10/2025

4" Super Bullet Tweeter 250 Watts 1.5" Titanium 4-Ohm Vc with RGB LED Lights

Oh yeah.

There was a break-in time, maybe 15 minutes, but after that they have sounded great, a nice clear bottom to the sound.
Lexus door woofer.

Bob Wucher

07/09/2025

PRO-X 6X9" Mid-Range Bullet Loudspeaker 200 Watts Rms 8-Ohm

Had 1 speaker out of the 4 ordered come damaged. Emailed DS-18 and they sent me a free replacement, great customer service, fast responses. Will definitely be ordering more from them!

Kyle Bethel

07/09/2025