HomeRCF Sub 905-AS Mk3

RCF Sub 905-AS Mk3

18" 700W Active Subwoofer

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This product has now been discontinued
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SKU: DJK32282719

Special Offers When bought with this product

Key Features

SUB 905-AS MK3 15" Birch Ply Active Subwoofer with DSP 1100W Blk

The SUB 905-AS MK3 is a self-powered extended low-frequency subwoofer with internal DSP. Its compact cabinet houses a state-of-the-art 15" transducer featuring ceramic magnets and a 3.0” voice coil. The internal amplifier manages up to 2200W power output,, delivering sound pressure levels up to 133 dB. Proprietary Bass Motion Control processing provides extended linearity and remarkable sound integrity. Rear panel controls include presets, crossover frequency, and polarity selection, cardioid, and output delay settings. The tour-ready, rugged all-wood cabinet with scratch-resistant polyurea coating is stackable and lightweight, ensuring quick set-ups and tear-downs. Built specifically for highly demanding applications, SUB 905-AS MK3 is the perfect workhorse for music professionals.

Product Features

  • 2200 W
  • 133 dB max SPL
  • 40 Hz - 120 Hz frequency response
  • 15" Woofer, 3.0" v.c.
  • Birch tour grade cabinet
  • Selectable gain, X-over, cardioid mode and time delay
  • Stereo XLR input, Stereo XLR signal output



Product Description

Product Specifications

Acoustical Specifications

  • Frequency Response: 40 Hz 120 Hz
  • Max SPL: 133 dB


  • Woofer: 15", 3.0" v.c

Input/Output Section

  • Input connectors: Stereo XLR
  • Output connectors: Stereo XLR
  • Input sensitivity: -2 dBu / + 4 dBu

Processor Section

  • Crossover frequencies: Selectable
  • Protections: Thermal, RMS
  • Limiter: Soft Limiter
  • Controls: Gain,EQ, phase, xover, delay, cardioid

Amplifier Specifications

  • Total power: 2200 W Peak, 1100 W RMS
  • Low frequencies: 2200 W Peak, 1100 W RMS
  • Cooling: Convection
  • Connections: Powercon in/out


  • Cabinet Material: Plywood
  • Handles: One Handle on each side
  • Pole Mount/Cap: Yes
  • Grille: steel with clothing
  • Colour: Black

Physical Specifications

  • Height: 590 mm / 23.23 inches
  • Width: 420 mm / 16.54 inches
  • Depth: 590 mm / 23.23 inches
  • Weight: 26 kg / 57.32 lbs


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Do you own the RCF Sub 905-AS Mk3? Why not write a review based on your experience with it.
4 March, 2024
Excellent product from rcf
Really nice subs these
0 found this helpful


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RCF Sub 905-AS Mk3

Delivery And Stock Information

Free next working day delivery on orders over £100 placed before 3:30pm Monday to Friday.

Orders placed at the weekend or after 3.30pm on Friday will be delivered on the following Tuesday (excluding Bank Holidays).

Larger items / orders e.g large bass speakers or multiple speakers may have to be shipped via a pallet service which may take 1-2 days.

Please check the estimated delivery date on the product, some items can take 2-7 days to be delivered. 

Free next day delivery applies only to the UK mainland for orders over £100. Other locations will be charged as follows

    • Highlands and Islands 2-3 Days* + £25
    • Northern Ireland 2-3 Days* +£10
    • Deliveries will be made subject to the terms and conditions of the courier company. djkit.com will not be held responsible for late deliveries.

In the event that the items ordered are unavailable for next day delivery, you will be contacted by djkit.com to arrange a suitable delivery date.

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Finance Available!

Finance options may be available, subject to status
Representative 0% APR Finance on all orders over £280
10% deposit then 6 months payment of £199.35
12 months 0% may also be available

You can apply for finance to purchase this item. A minimum 10% deposit is required and you can opt for either 24 or 36 monthly payments thereafter representative 16.9% APR.

RCF Sub 905-AS Mk3
from £41.88/month

Representative Example

Cash price £1,329.00, deposit £132.90. Borrowing £1,196.09 over 36 months with a representative APR of 16.9% fixed APR, the monthly payments will be £41.88 and the total amount payable will be £1,640.58

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