Sub Martin Audio SX210

The Martin Audio SX210 is an ultra-slim subwoofer for spaces that require deep yet refined bass. With its modern design and emotional sound, the SX210 embodies the true spirit of “British Sound” – powerful, precise and classy. Whether in a luxurious karaoke room or a stage sound system, the SX210 always retains the elegance that is typical of Martin Audio.

Introducing the Martin Audio SX210 Subwoofer

The Martin Audio SX210 Sub is a slim, yet powerful direct-radiating subwoofer that delivers deep, tight, and accurate bass. It features two 10-inch (250mm) drivers with a 2-inch (50mm) voice coil, and a large port that reduces low-frequency airflow noise.

Technical parameters of the product to consider:

• Speaker Configuration: 2 × 10” (250mm) – 2” (50mm) voice coil: Two 10-inch drivers are arranged in parallel to distribute bass pressure evenly, limiting air compression in the speaker cabinet. The 2-inch voice coil increases heat resistance and controls distortion, ensuring bass is always tight and accurate when operating at high power levels.
• Direct Radiating Subwoofer Design: The direct radiator design allows the audio signal to be emitted directly from the speaker membrane without passing through the reflector tube, thereby reducing phase delay and improving the clarity of the bass range. This design provides tight bass, fast response speed, suitable for karaoke systems, small stages and spaces requiring high precision.
• Large Port Design: The large, flared-edge port reduces wind noise and air turbulence at high SPLs. This allows the subwoofer to maintain smooth, low-distortion bass while increasing heat dissipation and driver longevity.
• Protective mesh: Perforated Steel Grille: The steel mesh is coated with electrostatic paint to help prevent oxidation and mechanical impact, ensuring durability in humid environments or on tour. The perforated structure maintains good acoustic transparency, without affecting the quality of the sound emitted.
• Nominal impedance: 4Ω (Ohms): The 4Ω impedance level helps the speaker to exploit the maximum power from the amplifier, and is compatible with many Class D or Class AB power amplifiers. This is the ideal impedance level for professional karaoke systems or small stage sets, where high performance and high volume are required.
• M8 Flying Inserts: The SX210 is equipped with M8 threads in many positions on the speaker cabinet, allowing for flexible hanging, wall mounting or pairing of subs. This is the international standard for rigging systems, supporting easy, safe and aesthetic fixed or touring installation.

Outstanding features of Martin Audio SX210 Subwoofer

The Martin Audio SX210 Subwoofer is a slim direct-radiating sub designed by Martin Audio for spaces that require powerful performance in a compact structure.

The product demonstrates the philosophy of “Sound that unites” – providing consistent bass, precise control and perfect compatibility with the same brand of full-range speakers. Below are the outstanding advantages of Martin Audio SX210:

• Slim design, easy to install in any space: The SX210 has a cabinet depth of only about 28 cm, significantly thinner than traditional subwoofers of the same capacity. This design allows the speaker to be hidden behind the stage, under the podium or mounted on the wall, maintaining the aesthetics of the restaurant, lounge, or hall space.
• Precise bass control and fast response: With Direct Radiating construction, the Martin Audio SX210 delivers a low frequency response from 45Hz to 150Hz without phase delay. The SX210's bass is tight, clear, and defined – ideal for live music, DJs, or high-end karaoke.
• Premium materials – touring-standard durability: The cabinet is made from 15mm Baltic Birch plywood – a high-quality wood often used in touring speakers. It is coated with scratch-resistant polyurethane paint, can withstand humid environments, stage lighting and frequent movement.
• Flexible in installation and pairing: Equipped with M8 threaded inserts allowing for easy vertical, horizontal or dual mounting in array or line column systems. Suitable for use with Martin Audio VIA2004, VIA5002 or Crown XLi3500 amplifiers, combined with CDD, BlacklineX, TORUS speakers to create a phase-in-phase system.
• Deep bass, no background noise – optimal for small spaces: Thanks to the large exhaust port and direct heat dissipation design, the SX210 delivers deep but well-controlled bass that doesn’t “buzz” when placed close to the wall. This is a big advantage when used in VIP karaoke rooms, lounges, small clubs, acoustic bars or semi-professional studios.
• Martin Audio brand – British audio standards: Martin Audio SX210 inherits the technology of Martin Audio UK, the award-winning brand of PA & Live Sound systems. Every detail of SX210 is optimized based on the sound philosophy of “clarity, consistency, control”.

Detailed review of Martin Audio SX210 Subwoofer

Sound quality – deep, clean and well controlled bass

The Martin Audio SX210 impresses with its solid bass, high dynamics and near-absolute precision across the frequency range. With its Direct Radiating Subwoofer design, two 10-inch (250mm) drivers work in parallel to control phase and distribute sound pressure evenly.

Bass is neither compressed nor boomy, giving a distinctly “tight” and “controlled” feel. A frequency response of 45Hz – 150Hz helps the SX210 fully reproduce the low energy of the music, from the kick drum to the sub-synth.

Compared to subwoofers in the same segment, Martin Audio SX210 provides deep bass but not boomy, thick but not overpowering mid, ideal for karaoke spaces, lounges or small stages that require neat, well-controlled bass.

Mechanical design – slim yet extremely sturdy

Martin Audio SX210 is only about 28cm thin, but still maintains rigidity and stability thanks to the use of 15mm Baltic Birch plywood, the standard material of high-end touring speakers. The outside is covered with polyurethane paint that is scratch-resistant, moisture-proof and impact-resistant.

The front panel is protected by a powder-coated perforated steel grille, ensuring acoustic ventilation while remaining durable during heavy travel. The symmetrical cabinet structure reduces internal resonance, increasing bass accuracy.

This design allows the Martin Audio SX210 to be hidden behind the stage, placed under a podium or mounted on a wall without changing the sound quality – a big advantage for small spaces that require high aesthetics.

Performance – big power in a small body

Despite only being equipped with two 10-inch speakers, the SX210 still achieves a maximum SPL of over 130dB, demonstrating the ability to exploit optimal energy from the large cabinet and port design. The large port with a rounded mouth helps reduce air turbulence when playing at high volume levels, thereby maintaining smooth, distortion-free bass.

When paired with the Martin Audio VIA2004, VIA5002 or Crown XLi3500 amplifiers, the SX210 maintains a stable RMS power output, ensuring component durability and good thermal performance. Thanks to its nominal impedance of 4Ω, the sub fully exploits the amplifier's power without causing signal distortion, helping the SX210 operate stably during long performances.

Interoperability – perfect compatibility with many systems

The Martin Audio SX210 is designed to be easily integrated into a variety of sound systems. With an impedance of 4 ohms, the speaker can be combined with class D, class AB power amplifiers and works effectively with Martin Audio's DSP Controller DX0.5, iK42 or VIA series.

This allows the sound engineer to precisely adjust parameters such as crossover, delay, limiter and EQ, ensuring that the sub and full-range speakers are always in phase. The SX210 works optimally when combined with the CDD, BlacklineX, TORUS T820 series, creating a seamless, even and powerful bass range. This high compatibility makes the Martin Audio SX210 suitable for both installation and portable touring setups.

Applications of Sub Martin Audio SX210

The Martin Audio SX210 Sub is a slim direct radiating subwoofer designed to meet the needs of spaces that require powerful, well-controlled bass while remaining space-saving.

With its high power, low distortion and accurate low frequency reproduction, the SX210 is widely used in professional karaoke sound systems, bar lounges, performance stages, and fixed installations. Common practical applications of the Martin Audio SX210:

• High-class karaoke room – VIP family karaoke.
• Bar, lounge, acoustic coffee.
• Small stage, tea room, mobile performance.
• Halls, churches, event centers.
• Residential applications – home theaters and music rooms.
• Installation and touring.

Where to buy genuine Martin Audio SX210 Subwoofer at good price?

Phuc Truong Audio is the official distributor of Martin Audio (UK) in Vietnam, specializing in providing high-end stage, karaoke, bar-lounge, auditorium and home audio equipment. With over 10 years of experience in the professional audio industry, Phuc Truong Audio is known as a reputable authorized dealer, always ensuring customers receive genuine products - competitive prices - transparent warranty.

At Phuc Truong Audio showroom, customers can experience the Martin Audio SX210 Subwoofer in person, compare it with other sub lines of Martin, JBL, E3, Ktreasure, HK Audio... to choose the configuration that best suits the space and purpose of use. All products are technically tested, measured frequency response (Frequency Response Test) before delivery to ensure accurate sound quality.

In addition, Phuc Truong Audio's team of specialized technicians always supports setup, EQ adjustment, and proper amplifier - mixer - digital echo combination, helping Martin Audio SX210 maximize its performance and acoustic linearity. Customers who purchase at the showroom will receive free installation within Ho Chi Minh City, nationwide shipping support and lifetime maintenance advice.

Promotions when purchasing at Phuc Truong Audio:

• Genuine Martin Audio (UK) product commitment - full CO, CQ available.
• Best price in the market - high discount for projects and agents.
• 12-month genuine warranty, lifetime technical support.
• Test directly at the showroom - real experience before buying.
• Delivery and installation nationwide, support for complete sound system configuration setup.

Frequently Asked Questions about the Martin Audio SX210 Subwoofer

1. Which space is the Martin Audio SX210 Subwoofer most suitable for?

Martin Audio Subwoofer The SX210 is designed as a slim direct-radiating subwoofer, making it suitable for karaoke rooms, lounges, small bars or halls from 30 - 100m². With a maximum sound pressure of over 130dB SPL, the SX210 ensures strong, clean bass without background noise, especially effective in professional karaoke systems.

2. What types of speakers can the Martin Audio SX210 be paired with?

SX210 is a perfect match with other models. full range speaker Martin Audio CDD, BlacklineX, TORUS or professional karaoke speakers from E3, Ktreasure, HK Audio... Thanks to its 4Ω impedance and wide frequency response, the SX210 can easily integrate with many different sound system configurations while still maintaining high acoustic linearity.

Explore more: How to match a standard family karaoke system?

3. Can the Martin Audio SX210 Subwoofer be hung or permanently installed?

Yes. The SX210 is equipped with international standard M8 flying inserts, allowing horizontal, vertical or wall mounting depending on the stage design. This design makes the speaker suitable for both fixed installations and touring setups without affecting the sound performance.

See more: Auditorium Sound Solutions: How to Optimize Sound for Any Event

4. What amplifier or power main should be used for SX210?

To get maximum performance, you should use power amplifier 1000–1500W/CH at 4Ω, e.g. Martin Audio VIA2004, VIA5002 or Crown XLi3500. When combined with DSP Controller DX0.5 or iK42, the SX210 provides extremely precise phase, crossover and limiter control.