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Hertz HMS 12 S4-LD-SW (B-stock) 12" (30cm) Subwoofer
SKU:  HMS-12-S4-LD-SW-B
500 Watt

HMS 12 S4-LD-SW (B-stock)

SKU:  HMS-12-S4-LD-SW-B

Technical Highlights

  • Continuous power handling of 500 W, impedance of 4 ohms, 30 cm diameter.
  • Designed specifically for open baffle, 19 mm linear excursion, low distortion.
  • 65.5 mm voice coil diameter, flux ferrite magnet, 7.6 kg weight.
  • More technical details
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€263,45
-45% €479,00 €263,45
5% discount with credit card
inkl. VAT , possibly plus shipping
Only a few left in stock (1 pieces available)
In stock
Jun 5, - Jun 6,
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€263,45
€479,00 €263,45

HMS 12 S4-LD-SW (B-stock) by Hertz

The HMS 12 S4-LD-SW from Hertz is a 12-inch Marine-Subwoofer from the B-stock collection, specifically designed for operation in open sound walls. It features a polypropylene diaphragm with UV inhibitors and a 4-ohm single voice coil with a diameter of 65.5 mm. The power handling is 500 watts RMS and reaches a peak value of 1000 watts. Included are an adaptable sport grill and integrated LEDs for lighting. The magnetic system uses a high-density flux ferrite magnet with dimensions of 156 x 80 x 40 mm. The design includes a high linear excursion capability and an optimized suspension to reduce distortion.

Features
  • 12-inch (30 cm) Subwoofer
  • Designed for open sound walls (Free Air)
  • Power handling: 500 watts RMS
  • Power handling: 1000 watts Peak
  • 4-ohm single voice coil
  • Integrated LED lighting
  • Adaptable sport grill
  • Polypropylene diaphragm with UV protection
  • High-density flux ferrite magnet
Technical Specifications
  • Diameter: 300 mm
  • Mounting depth: 191 mm
  • Voice coil diameter: 65.5 mm
  • Xmax: 19 mm
  • Resonance frequency (Fs): 30 Hz
  • Equivalent volume (Vas): 104.7 l
  • DC resistance (Re): 3.3 ohm
  • Efficiency (Spl): 89.5 dB
  • Total quality factor (Qts): 1
  • Mechanical quality factor (Qms): 12.9
  • Electrical quality factor (Qes): 1.1
  • Moving mass (Mms): 112 g
  • Compliance (Cms): 0.247 mm/N
  • Drive factor (BL): 8 Tm
  • Inductance (Le): 0.62 mH
  • Weight: 7.6 kg
  • Outer diameter (A): 342.9 mm
  • Mounting diameter (B): 279.4 mm

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Frequently Asked Questions about HMS 12 S4-LD-SW (B-stock)

What are the performance specifications of the Hertz HMS 12 S4-LD-SW?

The Hertz HMS 12 S4-LD-SW has an impressive RMS power handling of 500 W, ensuring durable and robust performance. At peak loads, the Marine Subwoofer reaches 1000 W, making it ideal for deep and powerful bass. With an impedance of 4 Ohms and a voice coil diameter of 65.5 mm, the Subwoofer combines durability and efficiency. The Subwoofer has a maximum excursion (Xmax) of 19 mm, resulting in low distortion and highlighting sound precision. Its SPL is 89.5 dB, guaranteeing high sound pressure output.

What are the dimensions and installation depth of the Hertz HMS 12 S4-LD-SW?

The Hertz HMS 12 S4-LD-SW Subwoofer has a diameter of 300 mm and a depth of 191 mm. These dimensions are ideal for marine applications where space is crucial. The cutout diameter is 279.4 mm, allowing for precise installation. If additional depth is needed, the installation depth is 192.8 mm to ensure optimal placement. It is important to pay close attention to these specifications, especially in tight and challenging environments, to ensure efficient installation.

What materials are used for the Hertz HMS 12 S4-LD-SW?

The Hertz HMS 12 S4-LD-SW uses high-quality materials to enhance performance and durability. The diaphragm is made of polypropylene with UV inhibitors to protect against sunlight. This is essential for use in challenging conditions on the water. The magnet uses high-density flux ferrite, enabling strong magnetic forces. This choice of materials supports performance in deep bass reproduction while providing stability and resistance to harsh conditions that can occur in a marine environment.

How does the sport grill with LEDs affect the use of the Hertz HMS 12 S4-LD-SW?

The adaptable sports grill of the Hertz HMS 12 S4-LD-SW features built-in LEDs that significantly enhance the aesthetic experience. This LED lighting can be used for stylish light effects that even respond to the music tempo. Thanks to the HM RGB 1 BK accessory, which includes an RGB remote control, adjusting the lighting is playfully possible. This innovative feature allows for perfect integration into the design of your boat or vehicle. The functionality with the HM RGB 1 BK remote control opens up a wide range of creative possibilities that go beyond simple lighting.

What are the electro-acoustic specifications of the Hertz HMS 12 S4-LD-SW?

The Hertz HMS 12 S4-LD-SW is characterized by precise electro-acoustic specifications. With a resonance frequency (Fs) of 30 Hz, it combines deep bass reproduction with acoustic efficiency. The Qts value is 1, ensuring high oscillation quality. The effective mechanical mass (Mms) is 112 g. Adhering to these parameters allows for consistent sound performance across a wide frequency range. The parametric value Vas of 104.7 liters supports adaptation to various listening environments. The electromechanical storage Le is 0.62 mH, which is important for synchronous sound delivery.

How important is the impedance of the Hertz HMS 12 S4-LD-SW in a marine sound system?

The impedance of the Hertz HMS 12 S4-LD-SW at 4 ohms plays a crucial role in the efficiency of a marine sound system. A 4-ohm impedance provides an ideal balance between power amplification and compatibility with conventional amplifiers. This adaptability facilitates seamless connection to existing audio systems. Operating in a 4-ohm mode allows the system to deliver higher power while simultaneously drawing current without causing distortion. This keeps sound accuracy consistent and efficiently maintains the performance of the entire audio system.

How is the Hertz HMS 12 S4-LD-SW compatible with the HM RGB 1 BK accessory?

The Hertz HMS 12 S4-LD-SW is optimally designed for integration with the HM RGB 1 BK accessory. The RGB remote control of the accessory allows for the selection of lighting colors that best match the environment of your boat or off-road vehicle. Harmonizing between Subwoofer lighting and the surroundings guarantees impressive visual effects. Thanks to the wireless remote control, switching between different light effects can be done effortlessly. This adaptability enhances the aesthetic experience and also provides practical control through interfaces that compete with other Hertz products.

Which screws are suitable for mounting the Hertz HMS 12 S4-LD-SW?

The correct installation of the Hertz HMS 12 S4-LD-SW requires special consideration of screws compatible with a 12-inch Subwoofer. To ensure secure fastening, screws should be used that take into account the outer diameter of the Subwoofer of 342.9 mm. Optimal are screws with a strength that ensures mechanical and acoustic stability. By correctly using selected, galvanized screws, not only is a secure hold guaranteed, but the acoustic integrity of the system is also maintained. Corrosion-resistant materials are also advisable for marine environments.

How does the Hertz HMS 12 S4-LD-SW enable high bass performance without a housing?

The Hertz HMS 12 S4-LD-SW is specifically designed for use with an open baffle, eliminating the need for a special housing. Its high-performance motor and suspension design maximizes bass performance without housing restrictions. This construction allows for flexible placement and provides deep and resonant bass frequencies that are not affected by housing regulations. The Subwoofer unleashes its power through the use of a polypropylene material with UV inhibitors, offering acoustic benchmarks that exceed standardized enclosure limitations. This is particularly advantageous in open or semi-closed environments.

What Thiele Small parameters characterize the Hertz HMS 12 S4-LD-SW?

The Thiele Small parameters of the Hertz HMS 12 S4-LD-SW provide insight into its electro-acoustic performance. These include Vas at 104.7 liters, allowing for more efficient volume matching. Qts with a value of 1 enables high-quality sound reproduction. The resonance frequency (Fs) value is at 30 Hz, ideal for deep bass frequencies. The BL factor is 8 T*m, illustrating the magnetic efficiency. This precision in the parameters ensures an acoustic performance that positions the Hertz HMS 12 S4-LD-SW as a leading Subwoofer for marine applications.

Manufacturer information / responsible person

Elettromedia SpA
62018 Potenza Picena (MC)
Strada Regina km 3,500
Italy

Contact person:
Simone Iampieri
Executive Director Assistant
T +39 0733 870 813
Elettromedia SpA
62018 Potenza Picena (MC) Italy
Strada Regina km 3,500
T + 39 0733 870 870

Contact: simone.iampieri@elettromedia.it

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