•  2x 18″ Passive Subwoofer
•  Power handling capacity LF 1950 W (RMS)
•  Low-frequency element, operating down to 27 Hz.
•  Fir-green RAL 6009® Polyurea coating

The RS-Sub subwoofer gives an extended operating bandwidth and a low frequency element, operating down to 27 Hz. By adjusting the number of RS Sub subwoofers, the low RS Sub to be deployed as a FOH system. The various loudspeaker configurations offered to the sound designer and system engineer allows for a high level of creative freedom. Before installation, these configurations can be acousti- simulation software. The amplified controllers with the factory preset library offer an advanced and precise drive system for the en- closures and allowing a designer flexibility and control in accommodating for any application  adjust the tonal balance of the system to reach a reference curve or to ensure consistency of the sonic signature.

System data


Frequency response (-5 dB 60 Hz mode) 27 Hz – 60Hz
Frequency response (-5 dB 100 Hz mode) 27 Hz – 100 Hz
Max. sound pressure (1m, free field) with QDX-13 142 dB SPL
Cabinets per amplifier channel QDX-13 1

Loudspeaker data
Nominal impedance 4 ohms
Power handling capacity LF (RMS) 1950W
Splay angle settings
Components  2 x 18″ driver with neodymium magnet
2 x NL4
Finish Fir-green RAL 6009® Polyurea coating
Rigging RS Rigging Frame,RS Joint
Cabinet Baltic birch plywood
Rigging Optional UBRK-5 bracket accessory
Protection Rating: IP 55

Dimensions, weight
Dimensions (H x W x D) 565x 1350x 718 mm
22.2 x 53.1 x 28.2″
Weight 98 kg
216 lb
SPL max peak test signal: pink noise with crest factor 4
Dimensions without wheels

Accessories for MIO-Sub:

•  RS-Sub PLA (dolly for MIO-Sub)

Downloads / Support
User Manual

Here you can find the Apia's user manual containing all the electronic and physical information about the selected product.

Data Sheet

Download the Datasheet of the selected product for all technical informations

Preset Pack

This zipped Package includes the preset-pack for the QDX-13 Amplifier and preset-pack for other brands of amplifiers.

Others Downloads

Go to document pages where you can download Apia's Cad files, Drawing files, rigging and configuration sheet about all our products.