Subwoofer SE Audiotechnik CV-218BG2

The SE Audiotechnik CV-218BG2 Subwoofer is a high-end dual subwoofer model specifically designed for stage, performance and business karaoke sound systems that require deep, strong and powerful bass. This is not just a supporting device, but the "heart" that creates a solid sound foundation - helping the mix become fuller, more vivid and more emotional.

Outstanding features of SE Audiotechnik CV-218BG2 Subwoofer

The SE Audiotechnik CV-218BG2 is more than just a large dual subwoofer – it’s a device designed to be the foundation of any sound system. Here are some of the key features that set the CV-218BG2 apart from other products on the market:

• Featuring a dual design with two 18-inch bass speakers, the CV-218BG2 delivers powerful, wide-ranging bass and maintains good control even in open spaces or large stages.
• Equipped with a Class D amplifier circuit with integrated switching power supply, providing high performance and energy saving, while operating stably for a long time without distortion.
• The speaker cabinet is made of thick plywood, coated with scratch-resistant and moisture-proof PU paint, ensuring high durability even in harsh environments such as outdoor performances or continuously operating clubs.
• Professional input/output signal connection system with Neutrik NL4 port makes it easy to combine multiple devices while ensuring stable signal.
• The sound volume can reach 140 dB, enough to "stir up" a large space without having to rely on too many auxiliary devices.
• The overall design is sturdy and scientific, suitable for both fixed installation and mobile sound systems that require neatness but power.

Detailed review of Sub SE Audiotechnik CV-218BG2

Durable mechanical design, suitable for professional stage

Sub Karaoke SE Audiotechnik CV-218BG2 has an optimal speaker cabinet design for stage environments and high-intensity performances. The cabinet is made of 18 mm thick plywood, coated with scratch-resistant, moisture-proof PU, ensuring high durability when moving a lot or installing permanently.

The square design, impact-resistant, plus a weight of up to 90 kg, helps the speaker not resonate or move when playing strong bass. The back has convenient heat dissipation slots and handles, showing that this is a product that has been carefully researched for both aesthetics and practical performance.

Dual 18-inch speaker structure creates deep and powerful bass

The most outstanding feature of the SE Audiotechnik CV-218BG2 is the dual 2-inch bass system with 18 mm voice coils and high-performance ferrite magnets. Using two drivers of the same size increases the contact area, which means more air is moved, thereby providing thick, full and powerful bass.

This coaxial dual speaker structure also allows for maximum dynamic range, accurately reproducing the bass range from 35Hz – 200Hz without buzzing, rumbling or over-loudness.

Huge capacity – suitable for all large spaces

The SE Audiotechnik CV-218BG2 speaker can operate at an extremely impressive capacity of up to 1700W RMS and 6800W peak (AES standard). This not only helps it "balance" spaces of over 40-100m², but also maintains stability when running at high volume for many hours.

With a sensitivity of 102 dB and a maximum SPL of 140 dB, the SE Audiotechnik CV-218BG2 creates strong, long-range sound pressure without distortion – essential for line array systems or outdoor sound.

Class D amplifier circuit combined with SMPS: efficiency - stability - durability

SE Audiotechnik CV-218BG2 has built-in Class D amplifier circuit, combined with SMPS pulse source for high efficiency and energy saving. The advantage of Class D is low heat dissipation, light weight compared to output power, very suitable for sound systems that often operate at high intensity.

SMPS power supply helps the device respond quickly to load current fluctuations, avoid voltage drops, and keep bass quality stable – even when operating continuously for 4–6 hours without stopping.

Easy to combine, flexible connection with professional systems

The connection system uses 2 industrial standard Neutrik NL-4 ports, allowing flexible connection for both single channel and parallel. Pin +1/-1 is for input/thru signal, making it very convenient to wire sub, while +2/-2 is left open or used for special applications.

With an impedance of 4 Ohms, the speaker can be combined with many high-power main lines from brands such as Crown, Lab Gruppen, EUDAC or Powersoft. This flexibility allows users to deploy from simple to complex systems, even in modular or fly-rig audio configurations.

Applications of SE Audiotechnik CV-218BG2 Subwoofer

Sub Karaoke SE Audiotechnik CV-218BG2 is a flexible device, widely applied in many large and small sound models, from outdoor stages to high-end business karaoke. Below are typical applications of this subwoofer line:

• Outdoor stage and large events.
• Hall, theater, event center.
• High-class Bar – Club – Lounge.
• Large business karaoke room (≥40m²).
• Line Array or full-range stage sound system.
• Mobile event sound – Mobile PA system.

Where to buy genuine, reputable SE Audiotechnik CV-218BG2 Subwoofer?

To own a professional subwoofer model like SE Audiotechnik CV-218BG2, choosing the right place to buy is a key factor. Because this is a high-performance device line, requiring precise matching techniques and long-term support from the distributor. A reputable address will not only bring genuine products but also ensure after-sales service, warranty and in-depth advice for each specific sound system.

Phuc Truong Audio is proud to be the official distributor of SE Audiotechnik equipment in Vietnam. Here, customers can experience the actual products at the showroom, receive technical advice from an experienced team, and be completely assured of the origin and quality of the products. In addition, Phuc Truong also supports nationwide delivery, on-site installation upon request, and provides full CO - CQ documents proving the origin and quality standards.

With a clear warranty policy, dedicated technical support and competitive prices, Phuc Truong Audio is the ideal choice for those who are looking for stability and professionalism in audio investment. Contact us now for advice, experience and ownership of CV-218BG2 - the most powerful subwoofer model today.

Frequently asked questions about Sub Karaoke SE Audiotechnik CV-218BG2

Can the product be used in a home karaoke system?

Technically, the SE Audiotechnik CV-218BG2 can be fully integrated into a home audio system if there is enough space and appropriate acoustic treatment. However, this is not the optimal choice for family karaoke system, due to its large capacity and bulky size. In spaces under 30m², users should choose smaller powered subwoofers or built-in subwoofers with a capacity of 300W–500W for higher efficiency while still controlling the bass.

Do I need an additional crossover or digital mixer to use this?

SE Audiotechnik CV-218BG2 subwoofer does not have built-in DSP or Crossovers internal, so to optimize efficiency, users should combine with digital mixer, a separate crossover or digital reverb that can adjust the crossover range for the sub. This not only helps to precisely control the bass frequencies that need to be reproduced, but also ensures that the entire sound system operates in phase, in range and cleanly.

Which power amplifier is compatible with this speaker?

With an impedance of 4 Ohm and a power level of 1700W RMS, the SE Audiotechnik CV-218BG2 requires pairing with large power amplifiers from 2000W RMS or more at 4Ω to ensure full performance. Some suitable main lines include: Lab Gruppen FP series, Crown XLi/XLS series, EUDAC PA6000, or Powersoft T Series. Choosing the right power main not only ensures enough pulling force but also helps the system to be stable and less distorted at high power levels.

Does the speaker operate stably when running continuously for a long time?

Yes. The SE Audiotechnik CV-218BG2 uses a Class D amplifier circuit combined with an SMPS power source, which is famous for its high efficiency and good heat dissipation. Thanks to that, the speaker can operate continuously for many hours without overheating, distortion or voltage drop. This is a great advantage when used in long events, outdoor stages or clubs that operate from afternoon to late at night.