BASSBOSS SSP215-MK3 Dual 15" Powered Sub 15-Inch Black - B-Stock condition-deal The Eve Audio SC204 is

The Eve Audio SC204 is a compact and powerful 2-way active monitor designed for desktops and nearfield applications

Antenna: 2x Removable BNC External (Rear-Mount)

or you can mount both together with each taking up half the rack space

Prism 8×8

BASSBOSS SSP215-MK3 Dual 15" Powered Sub 15-Inch Black - B-Stock condition-deal The Eve Audio SC204 isThe BassBoss BB SSP215 MK3 Dual 15 Inch Powered Subwoofer Black delivers monstrous output matching or often surpassing most double 18s found on the market. The all new MK3 series deliverers a suite of updates to the BASSBOSS line, improving clarity, performance, functionality, and safety via the new amplifiers, new DSP, custom control software, waterproof connectors, and more. The updated amplifiers + DSP feature much more powerful 96 kHz processors