RCF SUB 702AS MK3 | 12in - 129 dB | Compact Subwoofer with BMC & 1400W Amp

RCF SUB 702AS MK3 | 12in - 129 dB | Compact Subwoofer with BMC & 1400W Amp

$999.00

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Powered Subwoofer

The RCF SUB 702AS MK3 is a compact, high-performance 12" active subwoofer built for portable PA systems, live sound, and DJ applications. Delivering up to 129 dB SPL with a powerful 1400W Class-D amplifier, it provides tight, controlled low-end performance in a rugged, road-ready design. Ideal for pairing with 8" or 10" full-range speakers, the SUB 702AS MK3 brings depth and punch to small and mid-sized venues.

RCF SUB 702AS MK3 Competitive Differences

129 dB SPL from a 12" ceramic woofer and 1400W Class-D amp
Bass Motion Control DSP for extended low-frequency response without phase distortion

RCF SUB 702AS MK3 Description

The SUB 702AS MK3 combines powerful output with portability and versatility. Its 12" woofer is housed in a bass reflex enclosure made from Baltic birch plywood and protected by a rugged polyurea coating. Internally, the sub uses RCF’s advanced BMC (Bass Motion Control) algorithm to enhance low-end response while maintaining transducer stability, eliminating the need for a traditional high-pass filter and preserving signal integrity. The 1400W Class-D amplifier delivers tight transient response and low heat loss, with convection cooling and no moving parts for quiet operation and long-term reliability. Rear panel controls offer adjustable crossover (80Hz/120Hz), polarity switch, and EQ settings for tuning to any system or space. With a built-in stereo crossover, the SUB 702AS MK3 is easy to integrate into full-range systems. M20 pole mounting, recessed side handles, and a steel grille with dust-reducing foam lining make it ideal for portable setups and installs alike.

Model Features

1400W Class-D amplifier (700W RMS)
12" woofer with 2.5" voice coil and ceramic magnet
Max SPL: 129 dB for tight and punchy low-end
Bass Motion Control (BMC) excursion management
80Hz / 120Hz crossover switch with phase invert
Rear-panel EQ, volume, and polarity controls
Stereo XLR inputs and outputs
Fanless convection cooling for silent operation
M20 threaded pole mount and rugged side handles

Model Specifications

Max SPL: 129 dB
Power Output: 1400W Peak / 700W RMS
Frequency Response: 40 Hz – 120 Hz
Woofer: 12" with 2.5" voice coil
Inputs: XLR (balanced/unbalanced)
Outputs: XLR
Controls: Volume, EQ, Phase, Xover (80Hz/120Hz)
Cooling: Convection (fanless)
Cabinet: Baltic birch plywood with polyurea coating
Mount: M20 threaded pole mount
Grille: Steel with internal foam backing
Dimensions: 20.59 x 14.17 x 20.28 in (523 x 360 x 515 mm)
Weight: 47.4 lb (21.5 kg)

What's In The Box

RCF SUB 702AS MK3 Subwoofer
VDE Power Cable
User Guide

Shipping

Orders ship from our northern NJ warehouse the same day if ordered by 3:30PM EST. Transit time ETA's are listed in the image below:

Return Policies

All orders come with our industry leading 90-Day return policy.

Cash Back or Store Credit available for returns within 30 days.
Store Credit available for returns within 31-90 days.

Restocking fees

Unopened Items: 5%
Opened but Mint Condition: 15%
Blemished, Missing/Damaged Packing or Accessories: 25%

Shipping Costs

Buyer is responsible for return shipping costs
If "Free" or discount shipping was provided with original order, our actual shipping cost will be deducted from the amount refunded/credited

Damages & Defects

We will swap any item reported as damaged or defective within 7 days of delivery for free. All transportation and replacement costs will be covered by us (within US48 states).