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  3. 8 inch flat subwoofer for car
  5. Quantum QXS8D4
ESX Quantum QXS8D4 8" (20cm) Flat Subwoofer
250 Watt
ESX

Quantum QXS8D4

8" (20cm) Flat Subwoofer

Technical Highlights

  • Power handling 250 watts RMS, maximum power of 500 watts.
  • Impedance of 4+4 Ω, fiberglass diaphragm and 50 mm CCAW voice coil.
  • Flat steel basket, installation depth of only 78 mm.
  • More technical details
€129,00
€129,00 €129,00
5% discount with prepayment
inkl. VAT , possibly plus shipping
Delivery
Apr 11, - Apr 14,
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Quantum QXS8D4 by ESX

The Quantum QXS8D4 from ESX is an 8-inch flat subwoofer with a power handling of 250 watts RMS and a maximum of 500 watts. The technical design is based on a sturdy steel basket in a flat construction and a 40 oz. dual magnet drive. For sound performance, it features a fiberglass diaphragm and a 50 mm CCAW voice coil on a fiberglass former. The device has an impedance of 4+4 ohms. The installation depth is 78 mm with an installation opening of 182 mm. An X-Max of +/- 15 mm is specified.

Features
  • 8-inch (20 cm) flat subwoofer
  • Power: 250 watts RMS
  • Power: 500 watts Max
  • Steel basket in flat construction
  • 40 oz. dual magnet drive
  • Fiberglass diaphragm
  • 50 mm CCAW voice coil on fiberglass former
  • +/- 15 mm X-Max
Technical Specifications
  • Impedance: 4+4 ohms
  • Installation depth: 78 mm
  • Installation opening: 182 mm
  • Diameter: 200 mm

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ESX Quantum QXS8D4 Datasheet

Open datasheet

Frequently Asked Questions about Quantum QXS8D4

What is the maximum load capacity of the ESX Quantum QXS8D4 Subwoofer?

The ESX Quantum QXS8D4 Subwoofer offers an impressive maximum load capacity of 500 watts. With a continuous power of 250 watts RMS, this subwoofer enables powerful audio output, ideal for intense bass applications. The robust construction combined with the 40 oz. dual magnet drive ensures that the QXS8D4 can handle high power levels without distortion or overheating. This makes it particularly suitable for demanding audio setups where clear and strong bass reproduction is a priority.

What impedance does the Quantum QXS8D4 have and how does it affect compatibility?

The Quantum QXS8D4 Subwoofer has an impedance of 4+4 Ω, allowing flexible wiring in various audio systems. This dual impedance allows the subwoofer to be wired either in series or parallel, depending on the amplifier's requirements and the specific vehicle installation. An impedance of 4+4 Ω provides an optimal balance between power and efficiency, ensuring that the QXS8D4 operates reliably in both lower-powered and higher-powered systems.

What is the installation depth of the ESX Quantum QXS8D4 Subwoofer and what installation opening is required?

The ESX Quantum QXS8D4 Subwoofer has an installation depth of 78 mm, allowing for compact integration into various vehicle types. The required installation opening is 182 mm, making it easy to install the subwoofer in most standard enclosures. These specific dimensions ensure that the QXS8D4 can be optimally placed without extensive modifications to the vehicle enclosure, allowing for a simple and precise installation despite the robust construction of the subwoofer.

What materials are used in the diaphragm of the Quantum QXS8D4 and what advantages do they offer?

The diaphragm of the Quantum QXS8D4 Subwoofer is made of fiberglass, which ensures high stability and minimal deformation at high power levels. Fiberglass materials provide excellent strength and flexibility, allowing the diaphragm to produce precise and distortion-free vibrations. This contributes to clear and powerful bass reproduction, even under intense operating conditions. The use of fiberglass in the diaphragm ensures that the QXS8D4 delivers consistent performance while remaining durable and resistant to the mechanical stresses of subwoofer operation.

How does the 50 mm CCAW voice coil on a fiberglass carrier affect the performance of the ESX Quantum QXS8D4?

The 50 mm CCAW (Copper-Clad Aluminum Wire) voice coil on a fiberglass carrier in the ESX Quantum QXS8D4 Subwoofer enables efficient heat dissipation and a stable magnetic environment. This configuration reduces electrical resistance and increases the thermal capacity of the voice coil, allowing for higher power intake without overheating. The fiberglass carrier provides additional strength and precision, ensuring that the voice coil delivers consistent and distortion-free performance at high frequencies. This significantly contributes to the excellent sound quality and durability of the QXS8D4.

What advantages does the 40 oz. dual magnet drive of the Quantum QXS8D4 Subwoofer offer?

The 40 oz. dual magnet drive in the Quantum QXS8D4 Subwoofer provides increased magnetic force and improved linearity of motion. The dual magnet configuration exerts a more uniform force on the voice coil, resulting in more precise and powerful bass reproduction. This design minimizes distortion and enhances the efficiency of the Subwoofer by allowing for a more stable and controlled vibration of the diaphragm. Especially under high power demands, the dual magnet drive ensures reliable performance and extends the lifespan of the Subwoofer.

What technical features support the high sound quality of the Quantum QXS8D4 Subwoofer?

The Quantum QXS8D4 Subwoofer is characterized by several technical features that contribute to its high sound quality. These include the fiberglass diaphragm, which ensures minimal deformation and distortion, as well as the 50 mm CCAW voice coil on a fiberglass carrier, which provides efficient heat dissipation and stable magnetic fields. Additionally, the robust steel basket flat design allows for precise resonance control and minimizes unwanted vibrations. The +/- 15 mm X-Max ensures a large excursion of the diaphragm, enabling deeper and more precise bass reproduction. This combination of features guarantees clear and powerful audio playback.

How flexible is the ESX Quantum QXS8D4 Subwoofer in various application scenarios?

The ESX Quantum QXS8D4 Subwoofer offers high flexibility in various application scenarios due to its robust construction and versatile technical specifications. With a mounting depth of 78 mm and a cutout diameter of 182 mm, it fits into a variety of vehicle enclosures without requiring extensive modifications. The impedance of 4+4 Ω and the high power handling of 250/500 Watts RMS/Max. allow for use in different audio setups, whether in compact vehicles or powerful audio systems. Additionally, the quality of the materials used, such as the fiberglass diaphragm and the dual magnet drive, ensures consistent performance under various operating conditions.

What installation guidelines are there for the Quantum QXS8D4 regarding placement in the vehicle?

For the installation of the Quantum QXS8D4 Subwoofer, it is advisable to ensure a stable and vibration-free placement in the vehicle. The mounting depth of 78 mm and the cutout diameter of 182 mm should be considered when selecting the enclosure to ensure an optimal fit. The robust flat steel basket allows for flexible placement, whether in the trunk, under the seats, or in dedicated subwoofer compartments. Proper alignment and securing are essential to minimize resonance and unwanted vibrations, allowing the fiberglass diaphragm and voice coil to operate efficiently.

How does the robust flat steel basket design of the QXS8D4 support durability and performance?

The robust flat steel basket design of the QXS8D4 Subwoofer significantly contributes to durability and stable performance. A stable steel basket prevents deformation and structural weaknesses under high loads, maintaining the integrity of the subwoofer even during intense bass performances. This design minimizes vibrations and resonances, leading to clearer and more precise sound reproduction. Additionally, the sturdy steel basket provides a secure hold for internal components such as the dual magnet drive and the fiberglass diaphragm, increasing the overall lifespan of the QXS8D4 and ensuring reliable performance over long periods.

What significance does the +/- 15 mm X-Max have for the performance of the Quantum QXS8D4 Subwoofer?

The +/- 15 mm X-Max of the Quantum QXS8D4 Subwoofer indicates the maximum linear excursion of the diaphragm and is a crucial factor for bass performance. A high X-Max value means that the diaphragm can move further, allowing for deeper and more powerful bass frequencies. In the QXS8D4, this X-Max ensures precise control over diaphragm movements, even at high volumes and powerful applications. This reduces distortion and provides clearer reproduction of low frequencies, allowing the subwoofer to achieve impressive depth and dynamics in sound reproduction.

Manufacturer information / responsible person

Audio Design Loudspeaker Sales GmbH
Am Breilingsweg 3
76709 Kronau
Germany

Authorized Managing Director:
Bruno Dammert

Contact: info@audiodesign.de

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