DB Technologies SUB 618 - 600W 18-inch Powered Bass Reflex Subwoofer with 2.5-inch Voice Coil in Black Finish

The dB Technologies SUB 618 is a powerful 600W 18-inch powered bass-reflex subwoofer designed to deliver outstanding low-end performance in a compact and highly portable enclosure. Equipped with a Class-D 600W RMS amplifier and SMPS (Switch Mode Power Supply), the SUB 618 provides an impressive 1200W peak power, making it capable of reaching sound pressure levels up to 133 dB. This makes the SUB 618 ideal for professional sound reinforcement in both portable and fixed PA systems, providing clean, precise, and deep bass response for live music events, DJ setups, and corporate presentations.

The SUB 618's bass-reflex design enhances low-frequency output, allowing it to reproduce frequencies as low as 35 Hz, making it perfect for delivering punchy, powerful bass that complements smaller full-range speakers. Its advanced DSP processing ensures optimal performance, and it includes a range of user-friendly features that make it adaptable for various audio setups. The subwoofer can be used in stereo or mono configurations, with selectable crossover modes that eliminate the need for external processors, simplifying the setup of PA systems with one subwoofer and two full-range speakers.

On the rear panel, users will find intuitive controls that allow them to switch between flat and boost EQ modes, invert the polarity to optimize phase alignment, and adjust the subwoofer's level. Additionally, the SUB 618 offers true bypass and crossover signal routing, enabling it to function seamlessly in more complex audio systems. These features allow for greater flexibility and customization, making it a versatile solution for a wide range of professional sound applications.

The SUB 618 is housed in a robust plywood cabinet with a scratch-resistant black coating, designed to withstand the rigors of transport and frequent use. The full metal grille protects the internal components while providing a sleek, professional look. Despite its powerful performance, the subwoofer is relatively lightweight at 31.1 kg (68.57 lbs), and the integrated side handles make it easy to transport. The top panel features an M20 pole mount, enabling the subwoofer to support full-range speakers for a complete, stacked PA system. The compact dimensions of the SUB 618 allow for easy integration into larger sound systems, with its design optimized for stacking multiple subs when needed.

Features

• 600W RMS Class-D amplifier with 1200W peak power for deep, powerful bass reproduction.
• 18-inch transducer with 2.5-inch voice coil for precise low-frequency performance.
• Bass-reflex design for enhanced low-end output, with a frequency response range of 35 - 130 Hz (-10dB).
• Maximum SPL of 133 dB, delivering high output levels in a compact and portable enclosure.
• Stereo balanced XLR inputs and outputs with selectable true bypass or crossover modes for versatile setup options.
• Polarity inversion switch and subwoofer mode (flat/boost) for customizable performance based on the venue or event requirements.
• Advanced 28/56-bit DSP processing with built-in peak, RMS, and thermal limiters for reliable performance at high volumes.
• Sturdy plywood housing with a full metal grille for protection, and scratch-resistant black finish for durability.
• Carved side handles and M20 pole mount for easy transport and integration into full-range speaker systems.
• Dimensions: 500 mm (W) x 625 mm (H) x 690 mm (D); Weight: 31.1 kg (68.57 lbs).

Specifications

Technical Data

• Speaker Type: Active Subwoofer

Acoustical data

• Frequency Response [-10dB]: 35 - 130 Hz
• Max SPL (1 m): 133 dB
• Directivity: omnidirectional
• LF: 18"
• LF Voice Coil: 2.5"

Amplifier

• Amp Technology: SMSP digital amplifier
• Amp Class: Class D
• RMS Power: 600 W
• Peak Power: 1200 W

Processor

• Controller: 28/56 bit DSP
• Limiter: Peak, Thermal, RMS
• Controls: Subwoofer level, Outputs mode, Polarity, Subwoofer mode

Input

• Signal Input: 2x XLR (balanced)
• Signal Output: 2x XLR (balanced)

Mechanics

• Housing: Plywood
• Grille: Full metal grid
• Pole Mount: M20
• Width: 500 mm (19.69 in)
• Height: 625 mm (24.60 in)
• Depth: 690 mm (27.17 in)
• Weight: 31.1 kg (68.57 lbs)