Mission QX-12SUB MKII Subwoofer


Price:
Sale priceRs. 65,900.00

Brand's Origin Country: UK

Manufacturing Country: UK

Warranty: Indian Warranty

Cash on Delivery Available

Description

Overview

The Mission QX-12SUB MKII is a powerful, active subwoofer designed to complement the QX MKII series loudspeakers—or serve as a bass upgrade in any 2-channel setup. With a 12-inch (300 mm) long-throw driver and a built-in 300 W amplifier (450 W peak), it delivers deep, impactful bass with clarity and control. Modern finishes like Lux Black, Lux White, or Walnut make it a stylish match for the QX MKII speakers and other premium setups.

Key Features (with “why it matters”)

  • 12-inch long-throw bass driver
    Moves more air, enabling strong low frequency extension and powerful rumble without distortion.
  • 300 W amplifier power (450 W peak)
    Provides ample headroom for cinematic effects and impactful music playback.
  • Frequency response 35-120 Hz (±3 dB)
    Covers the essential bass range for movies and music with tight, controlled output.
  • Adjustable crossover (30-150 Hz)
    Lets you seamlessly integrate the subwoofer with your main speakers and room acoustics.
  • Multiple inputs (Stereo RCA & LFE)
    Works easily with AV receivers, stereo amplifiers, or home theatre systems.
  • Phase inversion & auto on/off
    Phase switch ensures better alignment; auto power saves energy when idle.
  • Premium cabinet finishes
    Lux Black, Lux White, or Walnut finishes match modern interiors and QX MKII speakers.

Technical Specifications

Specification Detail
Drive unit 1 × 12″ (300 mm) long-throw cone
Frequency response (±3 dB) 35-120 Hz
Amplifier power (RMS / Peak) 300 W / 450 W
Line input sensitivity 200 mV for maximum output
Crossover range 30-150 Hz (adjustable)
Inputs Stereo line-in (2 × RCA), Mono LFE line-in (RCA)
Input impedance Line: ~10 kΩ; LFE: ~5 kΩ
Signal-to-noise ratio ≥ 85 dB
Average max output @1 m 118 dB
Special features Phase inversion, auto on/off
Dimensions (H × W × D) (420 + 58) × 400 × (450 + 15) mm (with feet)
Net weight 23 kg

What’s in the Box

  • Mission QX-12SUB MKII subwoofer
  • IEC power cable
  • User manual / Quick start guide

Recommended Use Cases & Compatibility

  • Perfect bass companion for Mission QX MKII loudspeakers in home theatres.
  • Excellent for movies, music, and gaming where deep bass adds realism.
  • Ideal for larger rooms thanks to its 12″ driver and 300 W amp power.
  • Flexible with AVRs, stereo amps, or hi-fi systems via RCA or LFE input.

Important Notes / Limitations

  • Heavy unit (23 kg) — requires sturdy placement.
  • Frequency extension bottoms at ~35 Hz; extreme sub-bass (<30 Hz) may need an additional subwoofer.
  • Calibration (crossover & phase) is key to avoiding boomy or disconnected bass.

Common Questions (FAQ)

Q1. Does it switch off automatically?
Yes, auto on/off mode saves energy by powering down when idle.

Q2. Can I use it with non-Mission speakers?
Absolutely — works with any AVR or stereo amp with sub/LFE outputs.

Q3. What finishes are available?
Lux Black, Lux White, and Walnut to match interiors and QX MKII speakers.

Q4. How loud can it get?
Capable of 118 dB at 1 m — more than enough for impactful movie bass in large rooms.

Q5. Is setup complicated?
No — plug it in, connect via RCA/LFE, set crossover, adjust phase if needed, and you’re good to go.

Warranty & Support

  • Covered by Mission standard warranty (region-specific).
  • Support and servicing available via authorized Mission dealers.

Trust Factors & Extras

  • Part of Mission’s QX MKII lineup, ensuring matched performance and design.
  • Strong 12″ driver and 300 W amp for authoritative bass.
  • Fine-tuning flexibility with crossover and phase adjustments.

Watch Our Recent Videos

Loading videos...

Why Choose AV Kart?

Lowest Price Guarantee

  • For an instant discounted price. (Click Here)
  • If you get a better price than ours's then we will simply beat that by up to ₹10,000/- (Know More)

Expert Guidance

  • With our 15+ years of experience we will never let you make a wrong decision.
  • Get obligation free consultation regarding your requirement of Hi-Fi equipment.

Professional Installation Support

  • We offer professional installation in most of the cities all over India. Check the availability of installation in your city. (Click Here).
  • In case your city is not serviceable then you will still get remote guidance by our expert.

Flexible Payment Terms

  • No need to pay full advance before receiving your product.
  • Get cash on delivery against a small token amount.
Our products

You may also like

Recently viewed

Shipping Related Questions

It depends on where you are and what you are ordering. All types of speakers will take minimum 4-5 business days as per the delivery location. Products that are not magnetic can be delivered faster if customer agrees to bear air-freight cost.

At AV Kart, we work with reliable logistic partners to handle the deliveries of your expensive Hi-Fi products. 99% of all our deliveries happen smoothly across PAN India. However, at the times of unfortunate events when the delivered item has incurred any sort of damage, AV Kart gaurantees immediate replacement for the same without any questions asked. 

Please note that if the transit damage is limited to the packaging e.g. tampered boxes or broken thermocols then the product is not eligible for replacement until and unless there's any technical issue with it internally.

Product Related Questions

At AV Kart, we have a very limited inventory of Hi-Fi brands and that's becayse we have authorised dealerships for all the brands and products you see on our website. Every product is sourced from their respective official Indian distributors. Hence, whatever products you are going to order from us will be certainly 100% original.  We always urge our customers to request proof of dealership from any online sellers before buying anything online to ensure that you get the due warranties and service support.

Return and replacement both the options are not available in standard scenarios. However, If only the product you have received is faulty and the replacement is taking more than 3-4 weeks, we will accept the return and refund 100% amount. If the waiting period for replacement is within 4 weeks then we will try to supply our customers a standby product until the original one gets replaced.

Why Choose AV Kart?

There are many online stores nowadays who are selling Hi-Fi equipment. Some of them even displays lucrative disounts but here's how AV Kart is different from them - 

  1. Authorization - We are authorised dealers of each and every brand listed on our store. You will get proper service support and warranty on all the purchased products. You can always ask us for proof of dealerships for all of the listed brands.
  2. Expertise - We are among the only few online stores having years of experience with Hi-Fi equipment. You can ask us anything about your Hi-Fi home theater setup and you will get the right answer then and there. We have years of hands on experience working with top high-fidelity AV brands.
  3. On-Site Installation - We offer on-site installation in all the metro cities within 48 hours with the help of our channel partners which are spread across the country. From a single projector to complete home cinema setup, our team can service you at your doorstep. 
  4. After Sales Support - The only issue with Hi-Fi equipment is that you will not find local service centers in every city. Most of the brands have their service centers only in the metro cities and hence it becomes difficult for the customers who are living far away places to claim warranty. At AV Kart, we solve this problem by arranging pikcup and drop facility from the nearest service center with the help of our logistic partners.
  5. Telephonic Support - In the instances when you buy any product and install it yourself but facing troubles with using it? You can book a call/video call with us to understand the operations of your new equipment.

Customer support

Send a message

contact@audiovisualkart.com