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NVX QBUS8

8" Quick Bass Universal System Powered/Amplified Subwoofer System

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This item has been discontinued

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General Features:

  • 8" Active Enclosed Low Profile Subwoofer System
  • RMS Power Rating:
    • RMS: 80 watts
  • All weather woven fiber glass woofer cone
  • Adds crisp, clean bass to any system
  • Built-in class AB amplifier
  • Wired remote bass level control included
  • LED power (green) and protect (red) indicators
  • Variable Bass Boost (0 to +12 dB bass boost at 45Hz)
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Heavy duty die-cast aluminum alloy heat-sink for extreme heat dissipation
  • Silver-plated RCA level inputs
  • Silver-plated screw terminals
  • Input sensitivity:
    • Level: 110mV-0.5V
  • Variable subsonic filter (20-50 Hz)
  • Variable low-pass filter (50-150 Hz)
  • Phase Shift: 0-180°
  • Frequency response: 20-150 Hz ±1dB
  • 8 gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits from our website when purchased together with this powered loaded enclosure
  • Dimensions: 9-13/16"W x 13-9/16"L x 2-11/16"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
8"
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Single
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
80 watts
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Rubber
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Fiberglass
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
90 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
20 - 150 Hz

Enclosure Specifications

Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Sealed
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
1
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Square/Rectangle
Height
The height of the item, measured from top to bottom, in inches.
2-8/10"
Width
The width of the item from left to right (side-to-side) measured in inches.
9-8/10"
Depth
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
13-1/2"
Number of Terminals
The number of terminals the enclosure has. Each terminal represents 1 positive and 1 negative.
1
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Black
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Paint

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
65%
4 Star
24%
3 Star
3%
2 Star
0%
1 Star
9%

Average Attribution Rating

Durability
4.3
Value
4.5
Features
4.4
Design
4.7
Usability
4.7
Dennis

Saugus, CA

Overall
Durability
Value
Features
Design
Usability
Awesome product

November 4, 2013

It might be little but it still hits hard, great value

8 of 10 found this helpful

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Josh

Kingston Tn

Overall
Durability
Value
Features
Design
Usability
Great product

October 27, 2013

Awesome nothing like I expected ! It really surprised me lots of power !!!!

7 of 10 found this helpful

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reddragon195

Canada

Overall
Durability
Value
Features
Design
Usability
Small box ,Big sound

September 17, 2013

This QBUS8 is the easiest sub i have ever installed. Took me 25 minutes to install and 2 min to set.
I was surprised by how low and loud this can go,of course it's not a 12" sub but to fill in bass, you can't ask for better in such a small package.

Pros: - great sound
- excellent value ( considering it's an amp,box and sub)
- Compact ( fits under any seat)

Cons: - on low notes you can hear the air coming out.
- they should include carpet grips.

Still, great buy, might get one for the passenger seat.

3 of 3 found this helpful

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BONNIE

Spring, TX

Overall
Durability
Value
Features
Design
Usability
Not a good product

September 11, 2013

You get what you paid for. Product didn't add any bass to my ride. Waste of money.

4 of 6 found this helpful

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Darren

Chicago

Overall
Durability
Value
Features
Design
Usability
Got my money's worth and then some.

September 20, 2012

After looking at the Focal model which literally is exact same except for a plug for VW/BMW (I have a Ford Pickup), I felt compelled to give this one a shot. Thankfully I did because I have $300 in my pocket for something else and money isn't exactly flowing for me. Anyhow, back to the product. The bass is exactly what was missing from my system. It was simple to install. I have it vertically mounted behind the seat.
It runs for a few hours a day during my commute and I haven't had one hiccup. I am really happy with the product, the service at Sonic was excellent and my trek to work is much more enjoyable.

7 of 12 found this helpful

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Kevin

Arlington, Texas

Overall
Durability
Value
Features
Design
Usability
Fantastic addition!

February 24, 2014

I replaced the "premium" 10 speaker system in my '95 911 with a new Blaupukt head unit, new 5 1/4" component MB Quart Reference fronts (purchased here) and added the NVX QBUS8 to fill in the bass. I kept the OEM Nokia 2-way rears and now this system rocks! I can't believe this little 8" sub can produce such powerful bass! Great product, I highly recommend it!

1 of 1 found this helpful

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Big Mike

San Jose, Ca

Overall
Durability
Value
Features
Design
Usability
small space big bass..

January 12, 2014

looking for a small bass & amp combo & i found a great one... sounds great, hits hard for its size...

2 of 3 found this helpful

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Randy

Oregon

Overall
Durability
Value
Features
Design
Usability
On my second one

September 21, 2013

The first one only lasted 6 months. Sonic replaced it but it cost me shipping both ways, around 20 bucks. I"m 55 years old so I don"t think it was from using at max output all the time, it had to due with the mother board failure. I was hoping sonic would give me credit but they didn't. other then that sonic service was very good and they made me whole again.


****
Update from Sonic Electronix:
We have reached out to this customer and issued credit to make up for the inconvenience he had.
****

5 of 9 found this helpful

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Ray

Sylmar, CA

Overall
Durability
Value
Features
Design
Usability
NVX QBUS8 car subwoofer

September 19, 2013

For those who need a solid easy to install bass but not necessarily "Ground shaking" bass then this is the best I have heard. For people inside the car this should be more than enough bass to move them unless you want people outside the car vibrating also.

6 of 11 found this helpful

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dusty

morgantown, WV

Overall
Durability
Value
Features
Design
Usability
Stunning

June 25, 2013

Absolutely unbelievable! I installed this sub in a soft top Chevy Tracker and lets face it not the greatest platform in the world for sound. I placed it under the drivers seat where it fit without a problem and the bass will just blow you away. I also installed a new Sony head unit and replaced the door speakers, it sounded ok but with the addition of this Minnie mighty might it is like sitting in a concert hall....even with the top off! No it will not rattle your neighbors windows but why would you want to do that? I am just amazed that you can get the kind of bass response and sound from such a small shallow unit... I highly, highly recommend!!

1 of 1 found this helpful

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Kai

Honolulu, Hawaii

Overall
Durability
Value
Features
Design
Usability
Awesome compact sub-woofer!

March 29, 2013

When they said this is an audiophile sub they weren't joking. My installer didn't know about these and he was impressed!!
Clean, tight bass. You can adjust bass boost, cutoff, AND subsonic levels.
Check out the pictures and then compare this to other compacts subs. I didn't think twice about getting this and it rocks!
(I have a 300zx and it fits in the footwell behind the driver's seat just right!)

1 of 1 found this helpful

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rATT

san diego, ca

Overall
Durability
Value
Features
Design
Usability
Can be great if you do 4 things

March 14, 2013

Mount it close to you, have crossover control over the other speakers, have an equalizer, and have a quiet/dynamat car. Even if you have none of these you can get good results from this sub.

At 8" you aren't going to generate a lot of SPL especially if its in the trunk, it will sound like you upgraded your 5" round to 6x9s. Mine is in my hatch hidden behind a panel and it fills in perfectly but it leaves me wanting a bigger sub . I'm not willing to give up the space, so this is perfect for now.

Without crossover control over the other speakers the bass can sound a bit muddy and with a equalizer you can really fill in the mids and highs and get great results from this sub addition.

Bottom line is this is the best looking compact sub on the market with its cnc and anodized look, the blue led on the crossovers and gain knobs is a nice touch. Took one star away from durability because mine arrived WTO (won't turn off).

2 of 3 found this helpful

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Dandafixr

Stl, MO

Overall
Durability
Value
Features
Design
Usability
The little sub that could

April 26, 2014

I installed 8 polk audio speakers in my 98' crew cab chevy work truck, replacing the factory and adding 2 tweeters and 2 more in the rear doors. Powered it up with a good amp on a pioneer HU. It sounded great, but it was missing something. In comes the NVX QBUS8, "The little sub that could". I mounted it to the back wall of the truck and cranked her up. man this thing hits, even got a little flex out of the back panel. but mostly it filled the void my system was missing. Its the perfect little sub if you need some bass and dont have the room for a box and your not looking to compete. I may even look into getting a second one :)

0 of 0 found this helpful

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KEVIN

CATAWBA, VA

Overall
Durability
Value
Features
Design
Usability
amp-sub

April 25, 2014

I would not recommend this I installed in a single cab truck and hardly has more base than my stereo which just stopped working also no luck with anything yet

0 of 0 found this helpful

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Galen

Alden,NY

Overall
Durability
Value
Features
Design
Usability
NVX QBUS8

March 3, 2014

This powered sub is a great product very good sound levels it products and very easy to set-up.Great buy for the price.

1 of 2 found this helpful

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Jeff

Canada

Overall
Durability
Value
Features
Design
Usability
2011 Toyota Tacoma TRD Sport Double Cab

December 11, 2013

The quality of this sub looks great. Installation and setup is no different than any other amplifier except it includes a built in sub woofer. The remote level control is a nice added feature allowing you to adjust bass level for the type of music you are listening to on-the-fly.

I haven't actually installed this yet as it will NOT fit under the seats of a 2011 Tacoma without.....

A. removing a bar on the bottom of the passenger's seat.

OR

B. covering the heater vents under either seat.

Also, if you have a Weathertech floor mat in your backseat (like I do) you'll most likely have to notch it out to fit around the enclosure (kinda defeats the purpose of the mat).

1 of 2 found this helpful

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Eric

Austin, TX

Overall
Durability
Value
Features
Design
Usability
Pleasantly surprised

May 23, 2013

I wasn't looking for a "hear me from 3 blocks away window shaker". I just wanted something to fill in the low end in my Excursion. Even though I have a ton of room in the cargo area, I didn't want something that I'd have to remove every time I want to use the cargo area. I chose this because of the positive reviews and the fact that it would fit under my 2nd row seats and still allow the seats to slide forward for access to the 3rd row and fold flat for cargo. It works perfectly for this application! I have to say I'm also very impressed with how low and how tight this sub is. It was a little tricky finding the sweet spot for the gain so the remote knob would work well, but once I found it, I left it alone. I cranked all the other knobs and control the crossover from the head unit. I set it so the sub handles everything below 50Hz and it does an amazing job! I'm very happy with this sub!

0 of 0 found this helpful

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Bintangayu

Northridge,CA

Overall
Durability
Value
Features
Design
Usability
Awesome

April 20, 2013

After 3 months the sound getting better and better.
I install this Sub right under the storage compartment on passenger seat.
Install it on 2013 Camaro.
You don't really need big sub for your car,all you need just this Sub to full fill the missing of the bass on every car.
I have boston audio on my car,but need more bass,so i trust this sub.
So if you want good bass get this,
If you want to rattle your car don' get this.
i do have the picture on my car,i wish there is a way to upload it.

1 of 2 found this helpful

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Genericalbeitauthentic

El Paso, TX

Overall
Durability
Value
Features
Design
Usability
Can't Be Happier!

April 11, 2013

I can only say positive things about my experience with this product so far. The price is an outstanding value for the quality of the product. I did quite a bit of research and this seemed to be by far the best option for this style of subwoofer. It contains a built-in amplifier so all you need to do is hook it up to a receiver that has an RCA pre-out (any aftermarket stereo will have one, and most factory stereos too).

I had it professionally installed and haven't had one problem with the unit.

Unbelievable sound for such a compact and low priced unit. I mostly listen to rock and indie music, but I do like hip hop every once in a while and it easily exceeds my needs.

1 of 2 found this helpful

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Austin

Tampa, FL

Overall
Durability
Value
Features
Design
Usability
Stop searching, this is the under seat sub you want

March 20, 2013

I must have looked at dozens. I kept reading that most were identical, just with different brand names- but if you look at the inputs, fuses, etc, many were similar but none were identical. I stumbled onto the Focal, and dismissed it due to price. When I found this one I pulled up photos of the Focal and compared them side by side. Every screw, input, fuse, and LED location is identical. The only differences are the aluminum housing machining patterns and possibly the design of the visible surfaces of the speaker cone.

I was convinced enough that it was a Focal rebadge to take a chance. Boy am I glad I did. One of the Focal reviews said that it was not just great for being an under seat sub, but is a great subwoofer compared to other "real" subwoofers. I agree. In my small SUV this thing sounds better than the 100 watt 10" Yamaha home theater sub I purchased around the same time. I absolutely can't believe the bass it produces. It's not going to work if you're pushing 500 watts to your mids, but if you're looking to add bass to a factory system, or aftermarket head unit, this is your sub.

0 of 0 found this helpful

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Product Summary

Manufacturer

Model Number

QBUS8

UPC

818060010002

Weight

12.00lbs

Internal SKU

qbus8

Internal Product ID

42488

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NVX QBUS8