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NVX QB12SPA (Like New (Open Box))

1200W MAX (350W RMS) Single 12" Amplified Ported Loaded Subwoofer Enclosure with Remote Bass Knob

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• 12" Amplified Loaded Subwoofer System
• 350 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Learn more about the ls-qb12spa-u9

We apologize

This item has been discontinued

Description


NVX brand icon

Authorized dealer

Item Condition - Like New (Open Box):

This product works and looks like new. It may have been opened for a visual demo or product video. In some cases there may be signs of an attempt at installation like opened packaging or mounting screw holes used, but there is no real sign of use or wear. Includes all original parts, packaging and accessories (or suitable replacement)

General Features:

  • Single 12" Ported Loaded Subwoofer Enclosure with Built-In Amplifier
  • Power Handling:
    • Peak: 1200 watts
    • RMS: 350 watts
  • Built-in Class D amplifier
  • Includes Remote Bass Level Controller
  • Pre-installed Black Metal Grille
  • Precision-engineered CNC Ported MDF Enclosure
  • 8 AWG gauge power and ground wiring is recommended for installation
  • Works with Both Factory and Aftermarket Audio Systems
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Subwoofer Features:

  • 12" Single Voice Coil 2-Ohm Subwoofer
  • Injection Molded Polypropylene Cone
  • Rubber Surround
  • Ferrite Magnet Motor Structure
  • Frequency Response: 20 - 250 Hz

Amplifier Features:

  • Class D Monoblock Amplifier
  • Low-Pass Crossover Frequency: 50 - 250 Hz
  • RCA Preamp Inputs
  • Speaker-level (high-level) inputs
  • Input sensitivity: 100mV - 6 volts
  • Removable Power Plug
  • Fuse Rating: 30A x 1 

Enclosure Features:

  • Preloaded Single 12" Slot Ported Enclosure
  • 3/4 MDF (Medium Density Fiberboard) Construction
  • Black Carpet with Black NVX Stitched Logo
  • Enclosure Dimensions: 23.62" L x 6.10" W x 15.20" H

Specifications & Details


Subwoofer Amplifier Power Specifications
RMS Power @ 2 ohms
350 watts x 1 channel
Peak Power Output
1200 watts x 1 channel
Amplifier Specifications
Amplifier Class
D
Number of Channels
1 - Mono
Maximum Input Gauge Size
8 AWG
Speaker Level Inputs
Yes - with included adapter
Built-in Crossover
Low-Pass (LP)
Low-Pass Crossover Frequency
50 - 250 Hz
Low-Level Input Sensitivity
100mV - 6 volts
Remote bass/level controller
Yes
Fuse Rating
30A x 1 
CEA-2031 Compliant
Yes
Subwoofer Specifications
Subwoofer Size
12"
RMS Power Handling
350 watts
Total RMS Power Handling
350 watts
Peak Power Handling
1200 watts
Total Peak Power Handling
1200 watts
Woofer Surround
Rubber
Woofer Composition
Injection Molded Polypropylene
Voice Coil(s)
Single
Impedance (Per Voice Coil)
2 ohm
Voice Coil Diameter
2"
Magnet Type
Ferrite
Frequency Response
20 - 250 Hz
Subwoofer Design
Round / Circle
Enclosure Specifications
Box Type
Ported
Number of Subwoofers
1
Box Style/Shape
Square/Rectangle
Height
15.20"
Width
6.10"
Wood Thickness
3/4"
Box Exterior Color
Black
Box Finish
Carpet
Final Wired Impedance
2-ohm
Amplifier Wiring Kit
Is Amplifier Wiring Kit included?
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

QB12SPA-4

Weight:

25.00lbs

Internal SKU:

ls-qb12spa-u9

Internal Product ID:

228438

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.