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MJ Acoustics Reference 800 MkII Subwoofer - Black Ash


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Enquiry/price check? Click here SKU: MJACREF800
Ex VAT: £4,666.67

Available - Ships within 2-3 days

Condition: Brand new in original retail packaging

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Shape Square
Warranty length 2 Years (3 Years on registration)
Colour Black Ash
Brand MJ Acoustics

Tech Specs

- 18" Driver Cast Radial Heat Dissipation Chassis
- 100mm Voice Coil Ultra Pure OFC Core
- Quad Layer Voice Coil Windings
- Single Powered Driver
- Multi-Stage Power Supplies: Regulated
- Audio Grade Toroidal Transformers
- High Quality 24ct Gold Plated PCB Tracks
- Flexible FR4 PCB Material
- Audio Damped PCB Standoffs
- Vibration reduction for PCB Mechanical Mounting
- Reference Grade Component Matching
- Reference Grade Class Audiophile Design
- Gold Plated RCA Sockets
- Rear Panel: Digital Display, Power Meter
- Multi-Channel Inputs, Simultaneous use
- IR Remote Control enabled
- Remote Eye (for out of sight memory recall)
- Smart Remote Enabled for 2 Way Communication
- Speaker Level Connection - Speakon
- Stereo Line Level input L+R
- Line Level input LFE
- XLR Input and XLR Output
- Auto Display Dimmer
- D.A.M.P. 3rd Gen
- Twin X-Overs and Twin Gains
- User Memory Pre-sets x 4
- Last Setting Auto Save & Recall on Power Up
- High Level Gain Adjustable
- Line Level Gain Adjustable
- Infinite Gain adjustment from -99 to 0db
- LFE Input with X-over adjustment 20 - 200Hz
- LFE ByPass (200Hz) and LFE Loop Out
- Aditional X-over with adjustment 20 - 120Hz
- Infinite Phase Adjustment 0 - 180
- 12v Trigger On and Off
- Auto Power on/off Sensitivity adjustment
- Anti Thump Soft Start Power Up Circuit
- Inteligent Speaker Protection (CPU Monitored)
- High Grade Matched Linear MOSFET output Devices
- Discrete Instant High Current Power Amp Design
- ClassA/B Power Amplifier 600Watts RMS 960Watts Peak
- Frequency Response 10hz to 200Hz -3db in Room
- Dimensions (WHD): 520 x 560 x 520mm
- Weight: 56Kg

Product Description

MJ Acoustics Reference 800 MKII has been created for listeners who demand a highly capable large subwoofer in a compact form, for a demanding AV system. There is only one subwoofer that fits the bill, the breathtaking Reference 800 Mk II active sub bass system.


This subwoofer is built around a huge ultra long-throw cast alloy radial sub-bass driver (460mm), that has super-rigid construction, beautiful finish, and attention to the finest and smallest detail, ensures the Reference 800 MkII delivers solid low frequency sound, without the dreaded overhang, right down to a stomach churning 10Hz.


To guarantee the ultimate in sub-bass response, MJ acoustics combine modern state-of-the-art electronics with a tuned hand-built sealed enclosure. The Reference 800 Mark 2 handles frequency components with power and depth, for even the most demanding film soundtracks, but is also responsive enough to be fast, subtle, and accurate when reproducing high fidelity music listening. It's just like being there!

Easy Control

Reference 800 MkII has the power and dexterity to perform in even the largest of domestic AV home theatre systems. Controlling the 800 Mark 2 is very simple thanks to the digital display, which allows you to control and display your settings. With a 460mm ultra long-throw super-rigid cast alloy radial sub-bass driver, the Reference 800 MkII outputs serious SPL with Audiophile grip and control.

Highly Capable

The Reference 800 MkII is highly capable, which has the capacity to handle the most demanding of film soundtracks, and highly detailed complex bass lines. The subwoofer also comes supplied with an out-of-sight remote control, and a remote eye receiver that facilitates the simple changing of the 4 user-presets. All of the Reference 800 MKII subwoofers are created to your special order, so you can be assured that each has been constructed with MJ Acoustics special attention to detail.


This subwoofer comes with a re-designed integrated amp, twin crossovers, a huge 600w of power, a large 18” driver; all within a compact cabinet, measuring just 520mm cubed. It has been designed to blend with a range of speakers from mid-sized satellites, to high- end floorstanders, the Reference 800 have an output down to as low as 10hz and a -3db rating at 19Hz, in room it is obvious that it is extending the lower octaves in your sound stage.


This is a reference class piece of audio engineering that will complement the most astute home theatre and music system! The amplifier in this subwoofer has 600 watt of power, from the MOSFET amplifier, that has an ultra long-throw thanks to the highly rigid 18” sub-bass driver with a rugged design and finish. The finish of the Reference 800 MkII is a beautiful furniture grade real wood veneer, which has been attended to the with the finest and smallest attention to detail. The Reference 800 MkII delivers power, right down to the bottom of the audible spectrum, a stomach churning 10Hz, so you will certainly feel the Reference 800 MkII, as well as hearing it.

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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