dBTechnologies SUB 615 — Active Subwoofer for Professional Sound Reinforcement Systems The dBTechnologies SUB 615 is a technologically advanced active stage subwoofer that combines impressive output power with a compact bass-reflex enclosure. Equipped with a 15-inch low-frequency driver featuring a 2.5-inch voice coil and a modern 600W RMS Class D SMPS amplifier (1200W peak), this subwoofer delivers a maximum sound pressure level of 131 dB. This combination makes the device perform excellently in both small clubs and large concert stages, providing clean, deep, and dynamic bass sound that enhances every musical performance. Product Features The dBTechnologies SUB 615 subwoofer stands out with a range of professional features that make it a versatile tool for live sound reinforcement: 600W RMS / 1200W Peak — powerful Class D amplifier with SMPS technology ensures high energy efficiency 131 dB Max SPL — impressive sound pressure level in a compact enclosure 15-inch LF driver with 2.5" voice coil — precise reproduction of low frequencies from 42 Hz Balanced Xover outputs — built-in crossover eliminates the need for external processors Sub Mode — EQ switch for boosting the lowest frequencies Plywood enclosure — lightweight (25.5 kg), durable with a scratch-resistant coating Full metal grille — protects the driver in challenging stage conditions M20 thread — allows full-range speakers to be mounted on the subwoofer Professional Capabilities for Demanding Audio Productions The SUB 615 subwoofer was designed with professional PA systems in mind, where reliability and sound quality are paramount. Thanks to the built-in crossover with balanced Xover outputs, the user can build a complete sound reinforcement system consisting of one subwoofer and two full-range speakers — without the need for additional processors or external crossovers. The amplifier panel offers intuitive control: Mono/Stereo mode switch, polarity inversion, and output mode selection (True Bypass or Xover). The built-in 28/56-bit DSP processor with limiters (Peak, Thermal, RMS) protects the driver from damage, ensuring long-term and trouble-free operation of the device under the most demanding conditions. Applications PA Systems — stage subwoofer for concerts, events, and corporate parties Live sound reinforcement — professional sound reinforcement for vocals and instruments Subwoofer stacks — capability to stack subwoofers for larger systems Fixed installations — clubs, bars, conference rooms requiring powerful bass Mobile DJ — portable sound reinforcement with strong low-frequency support Large concert systems — in combination with dBTechnologies full-range speakers Detailed Technical Specifications Type: Active bass-reflex subwoofer LF Driver: 1x 15" (2.5" voice coil) Amplifier Technology: SMPS digital amplifier Amplifier Class: Class D RMS Power: 600 W Peak Power: 1200 W Frequency Response [-10dB]: 42 — 124 Hz Max SPL (1 m): 131 dB Directivity: Omnidirectional Processor: DSP 28/56 bit Limiter: Peak, Thermal, RMS Audio Inputs: 2x XLR (balanced) Audio Outputs: 2x XLR (balanced) Control: Subwoofer level, Outputs mode, Polarity, Subwoofer mode Mounting Thread: M20 Dimensions (WxHxD): 430 x 580 x 600 mm Weight: 25.5 kg Materials and Construction The enclosure of the dBTechnologies SUB 615 subwoofer is made of high-quality plywood, which provides excellent acoustics while maintaining a lightweight structure. The surface is covered with a scratch-resistant black finish, protecting the subwoofer from daily stage wear and tear. The full metal grille effectively protects the 15-inch driver from mechanical damage. Side transport handles facilitate moving the device, and the specially designed top enclosure profile allows for safe stacking of subwoofers in larger system configurations. Package Contents dBTechnologies SUB 615 Active Subwoofer Power cable User manual Summary The dBTechnologies SUB 615 is a subwoofer that proves that professional sound reinforcement does not have to be a compromise between power and mobility. The compact enclosure, advanced Class D amplifier, powerful 15-inch driver, and built-in crossover features make it an ideal choice for sound engineers, DJs, and rental companies looking for a reliable stage subwoofer. Whether you are building a compact mobile system or an elaborate concert installation — the SUB 615 will deliver powerful, precise bass that adds depth and impact to your productions.