8" Amplified UnderSeat Subwoofer 300 Watts Rms

Name: 8" Amplified UnderSeat Subwoofer 300 Watts Rms
Brand: SQBASS8
SKU: SQBASS8
Price: 229.95 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

$229.95

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In stock

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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

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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.

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30-DAY RETURNS

2 YEAR WARRANTY

SECURE PAYMENT

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RMS Power: 150 Watts(600 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
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Impedance: 2-Ohm
Under Car Seat
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Amplified with Subwoofer Control Knob
RMS Power: 230 Watts(1200 Watts Peak)
Impedance: 2-Ohm
Under Car Seat
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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!!

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Really nice kit, AMP is also very solid and compact, fits nicely under the seat on the low profile AMP rack I bought !
Would recommend taking to a shop for installation. I’ve got a 2025 Jeep Gladiator and my only complaint is how difficult it is to disassemble the dash.

Also note this is not exactly plug and play if you intend on Amplifying tweeters and Dash speakers. These are extremely Loud and clear on Vocals.

If you plan on doing The Sound bar too, you have two RCA’s labeled FR & FL. You need a RCA Y splitter, DS18 Makes them. You actually need 2 red and 2 black splitters. Would highly recommend the speakers if you’re looking to Wind Proof the audio.

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Never had subs this small but was suggested to try it and happy I did! I had 2 12s in my gladiator and wasn’t to happy with it and tried 4 of these and the sound is night and day difference! I have them in a ds18 ported box on a FR 3.5k

Dominick

03/10/2025