Fluid Audio F5 Pair. These are high-quality, affordable 5" active studio monitors. The rear panel features not only XLR and TRS inputs for professional applications, but also an RCA input for any consumer. They include a heat sink to prevent damage to the drivers and internal circuitry during long mixing sessions. They also feature a standby circuit that turns them off after 20 minutes of inactivity. All sound radiates from the front panel, where the drivers and port are mounted. The speaker uses a paper pulp composite cone with a curved-linear geometry, mounted on a well-damped butyl rubber ring. All of this contributes to a very well-controlled bass response that integrates perfectly with the tweeter. The well-reinforced MDF structure minimizes resonances, and the front-mounted bass-reflex port allows the bass energy to radiate directly toward the listener.