RCF SUB 8004-AS Active High Power Subwoofer

RCF SUB 8004-AS Active High Power Subwoofer



Heavy item delivery from £65

RCF SUB 8004-AS Active High Power Subwoofer

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Incredible sub-bass power, delivered from an 18" woofer and 1250W digital amplifier, conveniently housed inside a durable tour-grade cabinet.

Professional High-Power Sub

The perfect addition to any live sound set up - the RCF SUB 8004-AS Active High Power Subwoofer is designed to deliver a serious amount of low frequency under the most demanding of situations.

RCF SUB 8004-AS Active High Power Subwoofer Features:

  • 2500W Peak
  • 1250W RMS
  • 18" Woofer
  • 4" Voice Coil Vented Woofer
  • 30Hz - 120Hz Frequency Response
  • 136 DB MAX SPL
  • DSP Controlled Input Section With Selectable Presets
  • Baltic Birch Tour-Grade Cabinet
  • Stacking Compatibility

RCF Legacy

As one of RCF's most powerful and professional subwoofers, the hypervented 18" woofer with 4" inside/outside voice coils delivers very high SPL levels at incredibly low frequencies.

The first choice for many sound engineers, RCF have maintained their renowned self-powered, small dimension and impressive size-to-weight ratio to produce the 8004-AS. Built for the crowd, this powerful sub will be sure to deliver an engaging and immersive live experience.

Take It To The Limit

Designed for maximum efficiency, RCF have incorporated their impressive, high-performance Class-D power amplifier technology to deliver an ultra-fast and realistic transient response.

Manufactured from solid machined aluminium, the amplifiers structure is incredibly stable and dissipates heat incredibly effectively - ideal for extensive, long-duration use.

Stack Them Up

With over 60 years of design and manufacturing experience, RCF delivers perfection every single time. The tasteful and robust Baltic Birch cabinet is incredibly durable, ready for the longest of tours.

With an option to stack, you can configure a set up with HDL 10-A and HDL 20-A line array speakers for a compact and effect live-sound solution.

RCF SUB 8004-AS Active High Power Subwoofer Specifications:


  • FREQUENCY RESPONSE: 30 Hz ÷ 120 Hz


  • WOOFER: 18", 4" v.c

Input/Output section

  • INPUT SIGNAL: bal/unbal
  • INPUT SENSITIVITY: -2 dBu/+4 dBu

Processor section

  • LIMITER: Fast Limiter
  • CONTROLS: Xover, Phase switch, Deep/Punch, Outuput Delay Settings, Cardioid

Power section

  • TOTAL POWER: 2500 W Peak, 1250 W RMS
  • LOW FREQUENCIES: 2500 W Peak, 1250 W RMS
  • COOLING: Convection

Standard compliance


Physical specifications

  • COLOUR: Black


  • HEIGHT: 700 mm / 27.56 inches
  • WIDTH: 558 mm / 21.97 inches
  • DEPTH: 700 mm / 27.56 inches
  • WEIGHT: 56 kg / 123.46 lbs

Shipping informations

  • PACKAGE HEIGHT: 761 mm / 29.96 inches
  • PACKAGE WIDTH: 751 mm / 29.57 inches
  • PACKAGE DEPTH: 612 mm / 24.09 inches
  • PACKAGE WEIGHT: 60 kg / 132.28 lbs
More Information
Manufacturer RCF
SKU 148804
Shipping Weight (kg) 60.000000
Case Included hard case
SPL 136dB
Woofer Size 18"
Power Output 2350w rms


We have a wide range of Delivery Options available, depending on the value of your parcel and budget. Select from our 2-3 Day Saver Service or our Next Working Day options at the Checkout.
This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you, and the drivers name - just so you know when to turn the volume down!

  • Free Delivery Available on Selected Products
  • Weekend UK Mainland Delivery (Saturday-Sunday): £19.99
  • Small Items (Under 750g) Small items will be delivered by Royal Mail starting from 99p
  • Heavy Items (Over 30kg): Pallet Service Doorstep Delivery £65

For heavy items, courier details, out of stock products, out of area postcodes or international deliveries see our full Delivery info here.


Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within the hour.

Click here for more about our local Click & Collect Service.


If you and your item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

*Please note, we cannot accept returns of:

  • Special/Custom Orders - Any order that is custom or has been personalised.
  • Products with Hygiene Seals - Microphones, any in-ear earphones, monitors, orchestral instruments with mouthpieces and any other items that touch your mouth, nose or inner ear if you have broken the hygienic seal on the packaging.
  • Software & Media - Any software or media that has been opened or registered via physical or digital means.

Click here for more information on Returns at PMT.

Online Orders

If you and your new item aren’t getting along, you have 14 days from when you receive the goods to contact our PMT Experts either by phone or email to return your item or organise an exchange for something more suitable.

Store Orders

If you've changed your mind about something you bought in-store, bring it back within 14 days of purchase and we'll be happy to exchange it for another product, a gift card or store credit.