RCF SUB 8004-AS Active High Power Subwoofer

RCF SUB 8004-AS Active High Power Subwoofer



Order before 3pm Mon-Fri for Next Day Delivery

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
MPN 8004AS
Case Included hard case
SPL 136dB
Pole Mountable No
Woofer Size 18"
Power Output 2350w rms


We know you want to get your gear as quickly and as safely as possible, Next Working Day Delivery to UK Mainland Addresses, on all IN STOCK items, if ordered before 3pm. 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.

Orders under £99: £4.99 Delivery Charge


Orders over £99: Free Next Day DPD Delivery (When Ordered before 3pm)


Weekend Delivery (Saturday-Sunday): £9.99 (When Ordered before 3pm Friday)


Heavy Items (over 40kg): £39.99 Pallet Service







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 2 hours*.



If you have bought something In-Store or Online and want to return it as unwanted, you have 30 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

We can offer you a refund if you return your item within 30 Days from purchase date and with 100% perfect packaging. 


Please Note - We cannot accept unwanted returns on microphones, any in-ear earphones or monitors, and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.