Skip to main content Skip to footer
Save up to 40% on Holiday Doorbusters
Prices Too Low To Advertise - Call Hablamos Español
Cyber Monday Doorbusters - Up to 40% off - Plus, Backstage Pass Members earn 8% or more in rewards! - Limited-time offer | View qualifying gear

RCF SUB 8004-AS Active High Power Subwoofer

  • Write a Review
J47811 000000000
Have A Question?
Call A Gear Advisor: 888-487-4302
Product Price $2,999.00
  • Free Shipping With Backstage Pass (48 Contiguous U.S. States)

The SUB 8004-AS is an active hypervented 18” woofer with 4” inside/outside voice coils and a beastly 1250-watt Class D power amp. It delivers a loud,...Click To Read More About This Product

Order Now! Expected to Ship 01-29-2019
Order to reserve yours today - No charge until it ships
Gold Coverage: (What’s This?)
    Warranty Options
  Reserve Now
Notify Me When This is in Stock
Add to Wish List
Set Alerts
Special Financing Offer
$84/month for 36 months
Musician's Friend Platinum Card

0% Interest for 36 months*. 36 equal monthly payments required. Valid through 12/24/2018
Get DetailsAbout Special Financing Offers Opens in new window

Earn Points

Earn up to 23,992 reward points.


Powerful, top-quality active subwoofer with 18 in. driver.

The SUB 8004-AS is an active hypervented 18” woofer with 4” inside/outside voice coils and a beastly 1250-watt Class D power amp. It delivers a loud, warm, finely tuned low frequency output and will take an ordinary PA system form good to great with its incorporation.

It is a direct radiating large-format subwoofer system that has an efficient footprint for transportation of installation. It has a great track record of proving complementary to any full-range loudspeaker system. The SUB 8004-AS extracts the greatest efficiency from every part of the system, resulting in the effortless reproduction of low frequency transient response.

The cabinet is equipped with two RCF Precision back- vented, long-excursion 18” inch cone drivers that provide fast and controlled reproduction of the bass frequency range. The drivers have been engineered for extreme efficiency, using high- gauss ferrite magnets for the most powerful magnetic field strength. High magnetic field strength increases the driver’s sensitivity, which yields greater output, while keeping heat dissipation requirements within operational tolerances.

Powered by a 1250W digital amplifier module, the SUB 8004-AS can perform in the most demanding situations. The input board includes volume control, deep/punch switch, high pass switch, phase switch, cardioid, time delay. An easy-to-reach delay knob on the back allows to set the overall delay of the speaker in meters according to its application. 3 status LEDs – Power / Signal / Status are provided for monitoring the system

The amplifier features a solid mechanical aluminum structure that stabilizes the amplifier during transportation and assists in the heat dissipation and, with DSP control electronics and power supply, is integrated into a single, field-replaceable module mounted in the rear of the cabinet. The cabinet is constructed of multi-ply hardwood and coated with a textured black finish. Integral metal grilles lined with acoustical black mesh protect the cone drivers.

Speaker configuration
  • Active/passive: Active
  • Type: Subwoofer
  • LF driver: 18 in.
  • MF driver: N/A
  • HF driver: N/A
  • Amplifier class: D
  • Wattage: 2500 peak
  • Mixer/preamp: N/A
  • Frequency response: 30Hz - 120Hz
  • Coverage pattern: N/A
  • Max SPL: 136 dB
  • XLR/TRS: 2
  • TRS: N/A
  • TS: N/A
  • RCA N/A
  • XLR: 2
  • TRS: N/A
  • TS: N/A
  • SpeakON: N/A
  • Cabinet material: Multi-ply hardwood
  • Width: 22 in.
  • Height: 27.6 in.
  • Depth: 27.6 in.
  • Weight: 112 lb.

Big low end with a small footprint. Order soon.

This oversized item has special shipping requirements


Questions & Answers View All
Questions & Answers
You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.