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

Only 1 unit left

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

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

$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 3621 reviews

Clean/quality

Popped right into my factory speaker slot! Great quality gives you that organized clean look your heart desires 🤣

Onasie Rivera

05/03/2025

High Density ABS 6x9" 2- Way Speaker Adapter 1 X 6.5" Speaker and 1 x 1.38" Tweeter

Happy Customer

I have ordered a few things from DS18. I have their equipment in my motorcycle and I am enjoying it. I had an issue with one speaker that didn’t work but I was able to get online and get a replacement sent under warranty. Fast shipping.

Daniel Byrum

05/02/2025

PRO 6.5" Shallow Carbon Fiber Water resistant Cone Mid-Bass Loudspeaker 250 Watts Rms 4-Ohm

Very simple to install and everything is self explanatory

scott sukel

05/02/2025

Harley Davidson Plug and Play Harness For Amplifiers

Extremely loud and crisp

When it's comes to quality and clean music ds18 is the way to go

05/01/2025

PRO-X 5.25" Mid-Range Bullet Loudspeaker 150W Watts Rms 4-Ohm

good speakers

Good speakers sound clean, my cousin has some on his truck, and I could hear them pretty far, it was only like at 30 %, and was nothing I'd say a 5-star review, make them a little bit louder, and they will sound good

Leo A.

05/01/2025

PRO-X 6.5" Mid-Range Bullet Loudspeaker 250 Watts Rms 4-Ohm

Hard Hitters

I love them. Great build quality and sound.

Christian Hartso

04/29/2025

ZXI 12" High Excursion Subwoofer Quad Stacked Magnets 1000 Watts Rms DVC 4-Ohm

Nice and Loud!

I am glad I picked these for my soundbar. They don't light up but that's ok. They sound awesome!!!

Anthony Williamson

04/29/2025

PRO-ZT 8" Coaxial Mid-Range Loudspeaker with Water Resistant Cone Built-in Bullet Tweeter and Grill 275 Watts Rms 4-Ohm (2 Speakers)

Wow!!!

Fits nicely under the front passenger seat excellent sound for the price.

Anthony Williamson

04/29/2025

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

Sounds is too quality

Sound is crystal clear I came from a power bass 10 which the Bluetooth went out and the sound quilling of the da 18 is the same or even alittle better then the power bass.

Jadin Paul

04/29/2025

37" Marine Sound Bar Speaker System, 10 Speakers 1200 Watts, Bluetooth® v5.0, Rotating Control Panel

10/10 must try again

Cesar Sanchez

04/29/2025

SXE Class D Monoblock Car Amplifier 1 x 500 Watts RMS @ 1 Ohm 1500 Watts

Excellent

These are great sounding speakers. They get quite loud before distortion which is absolutely wonderful. Excellent range as well. I'm looking forward to buying another pair soon, if i can catch it on sale again.

Stephon Greaves

04/27/2025