SE Audiotechnik S112i Subwoofer

SE Audiotechnik S112i Subwoofer is a high-end active subwoofer model of the SE Audiotechnik brand (Germany), designed to reproduce powerful, neat and impressively deep bass.

With bass-reflex structure, 305mm woofer, 400W RMS power, integrated Class D amplifier and 24-bit DSP processor, S112i not only delivers powerful bass but also maintains high control and accuracy.

Outstanding features of SE Audiotechnik S112i Subwoofer

The SE Audiotechnik S112i is a speaker designed to enhance low frequencies while maintaining accuracy and speed of response. Here are some notable features:

• Brand & origin: SE Audiotechnik – professional audio brand from Germany, famous for its high-performance line array and subwoofer systems.
• Speaker configuration: Woofer 305 mm (12 inch), durable ferrite magnet, 76mm voice coil for 400W RMS continuous power handling.
• Bass-reflex design: Helps optimize airflow, reducing distortion in deep bass.
• Integrated Class D Amplifier: Use SMPS for high efficiency, light weight, low heat generation.
• 24-bit / 48 kHz DSP processor: Precise control of frequency response, reducing noise and distortion.
• Sound performance: Frequency range 42 Hz – 250 Hz (-6dB), maximum loudness 121 dB SPL.
• Dimensions & Weight: Only 22 kg, 15 mm plywood shell with durable paint, easy to move and install.

Detailed review of SE Audiotechnik S112i Subwoofer

Design and finish

SE Audiotechnik S112i subwoofer is designed with compact dimensions of 355 x 506 x 496 mm, suitable for placement in many different spaces without taking up much space.

The speaker cabinet is made from high-rigidity 15mm plywood, which helps reduce resonance and vibration, and is covered with a durable scratch-resistant paint, ensuring aesthetics during long-term use. The bass-reflex structure optimizes airflow, supporting low-frequency reproduction with minimal distortion, providing deeper and cleaner bass.

Speaker configuration and power

SE Audiotechnik S112i is equipped with a 12-inch (305 mm) woofer, using a ferrite magnet and a 76 mm voice coil for heat resistance and stable handling of 400W RMS continuous power. The speaker's operating frequency range is 42 Hz - 250 Hz (-6dB), enough to reproduce the entire bass range needed for karaoke, watching movies or listening to music. With a maximum sound volume of 121 dB SPL (1m), the S112i easily meets the needs of spaces from 20 - 40 m² while still maintaining the clarity of the bass.

Amplifiers and signal processors

The highlight of the S112i is the integration of a Class D amplifier with an SMPS power source, providing high energy conversion efficiency, reducing heat generation and making the speaker lighter. The system is equipped with a 24-bit / 48 kHz DSP, allowing precise control of frequency response, phase balance and intelligent noise filtering.

The integrated circuit protects against overload and overheating, helping the speaker operate stably for a long time, meeting the requirements of continuous use environments such as stages or professional singing rooms.

Realistic sound performance

In real-life experience, the SE Audiotechnik S112i delivers powerful, energetic bass and fast response, without rumbling even at high volumes. When playing Dance or EDM music, the speaker delivers solid and decisive bass, creating force for the space.

With karaoke, S112i helps the voice become fuller, thicker and warmer, especially when singing lyrical music or Bolero. When watching movies, the speaker reproduces vivid bass vibration effects, helping listeners feel explosions, physical noises or environmental sounds realistically.

Ability to mix and match

The SE Audiotechnik S112i easily pairs with a wide range of full-range speakers, especially models from the SE Audiotechnik L Series or 10–12-inch full-bass speakers from other brands. For small rooms, a single S112i is sufficient, while larger spaces can use two speakers to enhance bass power.

The speaker is compatible with digital mixers, power amplifiers or DSP processors in professional sound systems, and can also be easily combined with high-end home karaoke systems.

Applications of SE Audiotechnik S112i Subwoofer

The SE Audiotechnik S112i with 12-inch woofer, 400W RMS power, and 42Hz – 250Hz frequency range is an ideal choice for enhancing the low range while maintaining accuracy and response speed. The bass-reflex design and integrated DSP help the speaker operate stably in many spaces and music genres. Outstanding applications of the S112i:

• Family karaoke & business karaoke.
• Tea room, lounge, acoustic cafe.
• Mini stage & small hall.
• Home theater.
• Mobile events & mobile sound systems.

Address to buy Subwoofer SE Audiotechnik S112i

If you are looking for genuine SE Audiotechnik S112i Subwoofer with guaranteed quality and good after-sales service, Phuc Truong Audio is a reliable choice.

As a professional audio equipment distributor, Phuc Truong Audio commits to providing 100% genuine SE Audiotechnik products, with full CO/CQ documents and warranty according to manufacturer standards.

When you purchase here, you will receive in-depth matching advice to maximize the performance of the S112i, along with on-site installation support and actual sound testing before delivery.

In addition, the showroom also provides nationwide delivery service with many flexible payment methods such as COD, bank transfer or card swipe, helping customers feel convenient and secure when shopping.

Frequently asked questions about SE Audiotechnik S112i Subwoofer

How many square meters of space is the SE Audiotechnik S112i Subwoofer suitable for?

With 400W RMS continuous power and a maximum SPL of 121 dB, the S112i is most effective in spaces between 20 and 40 m². In this environment, subwoofer can reproduce full and powerful bass without loss of breath or distortion, ensuring the best music listening and karaoke experience.

What full-range speakers can the S112i be paired with?

The S112i is designed to be flexibly combined with many lines. full range speaker, especially models from the SE Audiotechnik L Series or 10–12 inch full bass speakers from other reputable brands. When combined, the system will have a good balance between bass and mid/high range, suitable for both karaoke and performance.

Can the S112i be used outdoors?

The speaker can be used outdoors for mobile events or temporary stages, but protection against rain and moisture is required to protect the speaker drivers, Class D amplifier circuits and cabinet paint. Proper storage will help the device maintain its performance and durability over time.

Is the built-in DSP on the S112i adjustable?

Speaker 24-bit/48 kHz Digital Signal Processor (DSP) Sub SE Audiotechnik The S112i is factory-tuned to optimize frequency response, phase, and speaker protection. No complicated intervention is required for general users, but in professional systems, technicians can still adjust via an external controller to synchronize with the entire system.