Sub Martin Audio SXC115

Martin Audio SXC115 is a professional subwoofer line optimally designed for performance sound systems, halls and high-end KTV spaces.

With its unique cardioid pattern and powerful low-frequency reproduction, the SXC115 delivers incredible performance in a compact, easy-to-install design. It is the ideal choice for those who demand clean sound, deep bass power and precise low-frequency control.

Introducing the Martin Audio SXC115 Subwoofer

The Martin Audio SXC115 is a compact cardioid subwoofer designed to deliver powerful bass, precise directivity, and up to 28dB of rear noise reduction at 75Hz. It uses two premium drivers, a 15” (380mm) front-firing 4” voice coil and a 12” (300mm) rear-firing 4” voice coil, for a clean, focused sound.

Technical parameters of the product to consider:

• Front Driver: 15” (380mm) / 4” (100mm) Voice Coil: This is the main driver, reproducing the main bass range with large amplitude and high power handling capacity. The 4” voice coil helps reduce harmonic distortion (THD) and increase the linearity of the speaker diaphragm when operating at high SPL sound pressure levels.
• Rear driver: 12” (300mm) / 4” (100mm) voice coil: Acts as rear cancellation, eliminating unwanted sound energy behind the speaker, creating a precise cardioid pattern.
• Cardioid Pattern: The most outstanding technical feature of the Martin Audio SXC115. This design allows to control the direction of low-frequency sound waves, helping the bass to focus forward, not reverberate on the stage.
• Rear rejection: 28dB @ 75Hz: An extremely impressive figure for a compact sub. This means the SXC115 can reduce the bass energy behind the speaker by up to 28 decibels at 75Hz, making the stage significantly cleaner and clearer.
• High Output Capability:Thanks to its optimized dual-driver + resonance chamber structure, the SXC115 achieves outstanding maximum SPL levels, often exceeding 130dB SPL, making it perfect for professional performance spaces.
• Box material: Tour-grade plywood (Birch Plywood): The cabinet is made of multi-layer birch plywood – a standard material in high-end touring speakers, providing high mechanical strength, anti-resonance vibration and increased low frequency accuracy.
• Compact Footprint: Despite its powerful performance, the SXC115 remains compact for transport and installation, easily combining with Martin Audio WPM, WPS, TORUS or CDD-LIVE to form a synchronized full-range system.

Outstanding features of Martin Audio SXC115 Karaoke Subwoofer

Martin Audio SXC115 is a high-end karaoke subwoofer designed with directional cardioid acoustics — helping to control the bass range precisely and eliminate unwanted resonance behind the stage.

With its dual-driver construction and durable tour-grade wood enclosure, the SXC115 delivers the perfect balance of power, detail, and clean bass, making it suitable for both professional karaoke and small stage performances. Here are the highlights of the Martin Audio SXC115:

• Advanced cardioid design – precise bass control: The SXC115 uses a Cardioid Radiation Pattern, combining a 15” front-facing driver and a 12” rear-facing driver to cancel out phase interference, keeping bass focused at the front and reducing rear bass reflection by up to 28dB at 75Hz.
• 2 independent driver structure – powerful bass reproduction: With two 4” voice coil drivers operating in opposite directions, the Martin Audio SXC115 achieves high linearity and maximum power (Max SPL ~130dB). This configuration provides high dynamics and fast response, resulting in rich but not muddy bass, enhancing the emotional experience of vocals and background music.
• Premium tour-grade plywood crate: The enclosure is made from multi-layer birch plywood – the standard material for touring speakers. The Polyurea coating is scratch and moisture resistant, ensuring high durability, anti-resonance vibration and acoustic stability even in high humidity environments.
• Compact design – flexible for all systems: Despite its powerful performance, the SXC115 is still compact in size, easy to arrange in karaoke rooms, bars, lounges or combined with full-range speakers Martin Audio TORUS, WPM, CDD-LIVE to create a synchronized system.
• Flexible matching capabilities – compatible with DSP & iKON amplifier: The Martin Audio SXC115 works best when paired with the Martin Audio iKON amplifier or a DSP processor with phase alignment capabilities. This results in a tight, controlled bass response that blends seamlessly with the main speakers.
• Real experience – deep, clean, energetic bass: When operating in a karaoke room or small stage, the SXC115 delivers solid bass, no echo, no background hum, helping vocals stand out, music sound clear, bringing the "clean but powerful" feeling typical of Martin Audio.

Detailed review of Martin Audio SXC115 Subwoofer

Exceptional sound quality

The Martin Audio SXC115 delivers exceptionally powerful and accurate bass, thanks to its dual-driver cardioid subwoofer construction that operates on the principle of inverted polarity.

The front 15-inch (380mm) driver handles the main low-frequency range with high power, while the rear 12-inch (300mm) driver operates in phase reversal to cancel out unwanted sound waves, reducing rear energy by up to 28dB at 75Hz. As a result, the SXC115's bass is not spread out uncontrollably but focused towards the audience, creating deep, clean and clear sound.

The combination of a 4-inch voice coil, precise phase alignment system, and low-frequency linearity helps the product produce tight, clear bass without background hum, making it suitable for high-end karaoke or professional stage performances.

Sound performance and stability

The performance of the Martin Audio SXC115 is impressive for its compact size. With a dual-cardioid driver structure and 4-inch voice coils for both speakers, the product can handle high continuous power and reach a maximum sound pressure level (Max SPL) of about 130dB.

This is a figure usually only seen on much larger subwoofers. The magnet assembly is designed with a vented design, which helps cool the voice coil and reduce distortion when operating at high intensities.

The anti-phase structure balances the internal compression force of the cabinet, avoiding internal resonance and keeping the bass range stable even during long-term use. All these factors make the SXC115 a small but powerful subwoofer that can operate continuously for many hours in a performance environment without any loss of performance.

Luxurious design and modern

In terms of design, the Martin Audio SXC115 is meticulously finished to British professional touring standards. The speaker cabinet is made from multi-layer birch plywood - a material with high stiffness and density that helps reduce vibration, increase acoustic stability and maintain bass accuracy.

The surface is coated with scratch-resistant and moisture-proof Polyurea paint, ensuring mechanical durability during transportation or use in harsh weather conditions. The size of the speaker is optimized in a compact footprint, with handles on both sides and extremely sturdy jacks, making it convenient to move, install or stack.

Every detail is designed to ensure long-lasting durability, high stability and strong aesthetics, true to the “British Engineering” that Martin Audio has maintained for over 50 years.

System compatibility and interoperability

Martin Audio SXC115 is designed to be perfectly compatible with Martin Audio's array speaker lines such as WPM, WPS, TORUS and especially works optimally when combined with the iKON series amplifier. When used with the integrated DSP system, the iKON amplifier can automatically adjust phase, delay and EQ alignment, helping the sub and main speaker operate in absolute phase.

Phase synchronization not only improves the coherence of the bass range but also increases spatial accuracy. In addition, the SXC115 is equipped with the industry-standard Neutrik NL4 connection port, supporting high-power signals and ensuring signal stability throughout the performance.

Thanks to its stack or fly capability, the product can be easily integrated into many different system configurations, from professional karaoke to stage sound systems.

Real-life experience in use

When operated in real space, Martin Audio SXC115 shows the ability to reproduce extremely clean, balanced and natural bass. In a high-end karaoke room, the bass does not overwhelm the mid-range but supports the vocals, making the music clearer and deeper.

In a stage or bar, the SXC115 creates a feeling of strong but not dazzling sound pressure, helping listeners feel "controlled bass force" - something that traditional subs find difficult to achieve.

Even with extended periods of operation, the speaker maintains phase stability and power, allowing the sound to spread evenly throughout the space. Overall experience shows that the Martin Audio SXC115 is one of the rare sub models that balances power, precision and sonic sophistication.

Applications of Sub Martin Audio SXC115

The Martin Audio SXC115 is a cardioid subwoofer designed for spaces that require clean, controlled, and powerful bass. With up to 28dB of rear noise rejection at 75Hz, the SXC115 is not only suitable for professional stage performances but also the optimal solution for high-end karaoke systems where absolute balance and detail are required.

Popular applications of the Martin Audio SXC115:

• High-class karaoke room.
• Performance stage & mini stage.
• High-class bar, lounge and club system.
• Auditorium, event center & large meeting room.
• Touring System.
• Home theater system or hi-end music system.

Where to buy genuine Martin Audio SXC115 Karaoke Sub at a good price?

Phuc Truong Audio is the official distributor of Martin Audio in Vietnam, specializing in supplying and installing karaoke subwoofers - professional performance subwoofers for families, bars, high-end karaoke rooms and auditorium stage systems. With over 10 years of experience in the audio field, Phuc Truong Audio is proud to bring customers genuine products - competitive prices - and the most dedicated technical service.

Why should you buy Martin Audio SXC115 at Phuc Truong Audio?

• 100% genuine goods: imported directly from Martin Audio UK, with full CO, CQ, anti-counterfeit stamps and electronic warranty card.
• The most preferential price in the market: thanks to direct distribution, minimizing intermediary costs, ensuring the best price for customers.
• Professional consulting & setup service: Phuc Truong Audio's team of technicians will measure, adjust phase, and tune sound on-site so that the Martin Audio SXC115 subwoofer can achieve maximum performance.
• Lifetime warranty & support: 12-month genuine warranty policy, long-term technical support and genuine spare parts replacement when needed.
• Delivery and installation at your place: nationwide support, especially in Ho Chi Minh City, Binh Duong, Dong Nai, Ca Mau, Binh Phuoc, Tay Ninh…

Frequently Asked Questions about the Martin Audio SXC115 Subwoofer

1. Which space is the Martin Audio SXC115 Subwoofer most suitable for?

Sub Martin Audio SXC115 is designed for high-end karaoke rooms, small stages, lounges, bars and halls with an area of ​​20-60m². Thanks to the cardioid design, the product helps the bass focus forward, without echoing behind, creating a clear, clean singing space.

2. How is the Martin Audio SXC115 Sub different from regular sub models?

The outstanding difference lies in the cardioid technology (heart-shaped) - using two 15" and 12" drivers that operate in opposite phase to cancel out the sound waves behind. While traditional subwoofers radiate sound 360°, the SXC115 only emits bass forward, providing solid, powerful bass without background noise. Refer to other similar sub lines such as the SXC118, SX212,…

3. What types of speakers can the SXC115 speaker be combined with?

Martin Audio SXC115 is a perfect match with Martin Audio full-range speakers WPM, WPS, TORUS, CDD-LIVE, or other karaoke system out of dung Martin Audio power amplifier iKON. When combined with the DSP tuning system, the product achieves absolute phase alignment, helping the bass and midrange blend naturally.

4. Can the Martin Audio SXC115 Subwoofer be used for a home karaoke system?

Yes! With its compact design and low noise level, the SXC115 is a perfect fit for family karaoke system High-end. When combined with Martin Audio standard amplifier or DSP, the sub produces soft, deep bass without hum, creating a "clean and powerful" listening experience with true British style.