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DD Audio

Power Tuned 3518i ESP

18" (46cm) Subwoofer

Normal price 999,00€
Normal price 999,00€ selling price 999,00€
incl. VAT , possibly plus shipping

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Highlights

  • Power handling 1200 watts RMS, peak power handling 4800 watts.
  • Impedance: Double 2 Ohm or Double 4 Ohm, 3" coil diameter.
  • Playback range 10Hz-500Hz, resonance frequency 29.61 Hz.
Impedance: D4 (2x4 Ohm)
SuperCharge: Yes
Seen more cheaply Personal Offer
brand: DD Audio
Delivery time:
Available to you in 5-10 days
Number:
Piece
Watt RMS:
1200
Subwoofer Type:
ferrite
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Werktags innerhalb von 24h

info@masori.de

Normal price 999,00€
Normal price 999,00€ selling price 999,00€

The Power Tuned 3518i ESP is an 18" (46cm) subwoofer from DD Audio, known for its top-notch features and precision. As part of the remarkable 3500 series, this subwoofer benefits from a design with low moving mass and ultra-high energy. With a strong motor and the long gap/long coil topology, it is known as the most acoustically accurate sub-driver. It is equipped with V-ROM surround, multi-layer spiders, 800-degree voice coils made of duroplastic, and aluminum cast frame, making it a brutally musical addition to the USA-built product lineup. The Power Tuned 3518i ESP combines top-tier performance with maximum size, thanks to the Evolution subwoofer package and special design features.

Features
  • 46cm (18") Subwoofer
  • Load capacity (RMS) 1200 Watts
  • Peak load capacity (Peak) 4800 Watts
  • Impedance options: Dual 2 Ohm or Dual 4 Ohm
  • Patented Ferrite Magnet System
  • Lossless linear suspension
  • Ribbed Foam Bead
  • Magnet protection cap including grid before the pole core drilling
  • Aluminium Die Casting Basket

data

  • Playback range 10Hz - 500Hz
  • Direct current resistance (Re) 1.9 Ohm
  • Resonant frequency (Fs) 29.61 Hz
  • Mechanical Quality (Qms) 4.38
  • Electrical quality (Qes) 0.50
  • Total quality (Qts) 0.45
  • Equivalent Volume (Vas) 136.48 L
  • Xmax ±17.5mm
  • Magnet weight 350 Oz
  • Spindle diameter 3" (76.2mm)

Features of ESP Subwoofer

  • Carbon Fiber Blend Cone (CFB) - The CFB composition uses an effective carbon fiber-based cocktail to provide you with the highest strength-to-weight ratio in the industry.
  • Vario-Density Extended Range of Motion Surround (V-ROM) - Offers ultimate linear control at high deflection while enabling dynamically sounding bass reproduction. The control ribs are compressed to a lower density than the main surround body to allow for a stepless control system. The harder you control it, the more control you gain.
  • Tuned Spider System (TSS) - Each suspension is tuned to specific performance characteristics, e.g. High Definition, Power Handling, X-Stiff Control.
  • Super-Frame (SFrame) - Maximizes the spider diameter, the cone diameter, the suspension deflection, and thus acts as a secondary short-circuit ring and provides additional heat dissipation for better heat flow from the coil.
  • SuperCharge option possible!
The Power Tuned 3518i ESP from DD Audio is characterized by its design with low moving mass, which allows for increased energy efficiency. This means that less energy is required to operate the subwoofer, leading to a more efficient use of the built-in 800-degree thermoplastic voice coil system. Additionally, the ultra-high energy of the strong motor combined with the long gap/long coil topology provides optimal sound fidelity and performance. These features contribute to remarkable energy efficiency that not only maximizes performance but also extends the lifespan of the subwoofer.
The Carbon Fiber Blend Cone (CFB) in the Power Tuned 3518i ESP provides an outstanding strength-to-weight ratio that is unmatched in the industry. This carbon fiber composition allows the cone to withstand high loads without losing sound quality. The strength of the material minimizes distortion and ensures precise, clear bass even at higher volumes. The CFB design helps support the subwoofer with impressively consistent sound reproduction through its efficiency and robustness, which is a crucial advantage for music lovers.
For the installation of the Power Tuned 3518i ESP, the dimensions and technical values are particularly important. The 18-inch subwoofer has a diameter of 46 cm and requires a certain installation depth to function optimally. Key technical specifications include an RMS power handling of 1200 watts and a peak power handling of 4800 watts. The impedance options, either dual 2 ohm or dual 4 ohm, allow for versatile adaptation to existing audio systems. With an Xmax of ±17.5 mm and a magnet weight of 350 Oz, a stable mounting is required to fully exploit its potential.
The Tuned Spider System (TSS) in the Power Tuned 3518i ESP is designed to support specific performance characteristics such as high definition, power handling, and X-Stiff Control. It optimizes the motion control of the diaphragm and ensures that the displacement remains linear at high sound levels. The TSS structure contributes to the fine-tuning of the suspension, allowing for clear and distortion-free music playback even under intense use. Specifically developed for the Power Tuned 3518i ESP, the TSS maximizes playback quality under high loads and maintains sound accuracy.
The V-ROM surround of the Power Tuned 3518i ESP offers ultimate linear control at high excursions, which directly affects the dynamics and precision of bass reproduction. The varying density in the surround allows for flexible sound control and enhances resonance at low frequencies. Especially during loud and bass-intensive music sessions, the V-ROM surround ensures precise cone movement without causing distortion. This provides the advantage that bass reproduction remains clear and powerful even under extreme conditions.
The aluminum die-cast basket of the Power Tuned 3518i ESP has several advantages. It provides a stable base for the subwoofer, minimizes mechanical resonances, and offers better heat dissipation, which extends the lifespan of the system. The material ensures a stable, torsion-resistant chassis that efficiently transmits vibrations. In combination with high structural integrity, the aluminum die-cast basket enhances the overall performance of the subwoofer and allows it to reproduce even the most demanding bass notes in detail and precision, making it an essential component of the design.
The Power Tuned 3518i ESP from DD Audio offers impedance options in dual 2 ohm or dual 4 ohm, providing great flexibility in adapting to existing amplifier systems. These options significantly affect the overall performance of the system. A lower impedance, such as dual 2 ohm, allows for drawing more power from the same amplifier, which is useful when reproducing high volume levels. Conversely, dual 4 ohm offers a higher, more stable overall impedance that protects the system and ensures consistent sound performance, which is particularly advantageous in different acoustic environments.
The Power Tuned 3518i ESP is optimally designed for a playback range of 10 Hz to 500 Hz. This frequency range allows for comprehensive bass reproduction, covering both the lowest tones and musically harmonious mids. Especially in applications that require a wide range of bass frequencies—such as in home cinema or music concerts in the car—the subwoofer demonstrates its strengths. The seamless integration into existing sound systems is ensured by its ability to process different frequencies with high accuracy.
The Power Tuned 3518i ESP achieves precise bass reproduction through a combination of advanced technologies. The powerful motor with ferrite magnet system and the long gap/long coil topology enable accurate sound generation. Furthermore, the lossless linear suspension contributes to sound fidelity. The mechanical and electrical quality with values of Qms 4.38 and Qes 0.50 ensures a balanced equilibrium between mechanical damping and electrical influence, enhancing control and precision. These technological features make the Power Tuned 3518i ESP the ideal subwoofer for highly demanding applications.
The resonance frequency (Fs) of the Power Tuned 3518i ESP is 29.61 Hz, a value that enables deep bass reproduction. A lower resonance frequency supports the generation of clear deep bass tones, particularly useful in music genres like dubstep or orchestral pieces, where deep bass lines are significant. The Fs values, in combination with other parameters such as Qms and Qes, contribute to the overall accuracy of the reproduction and allow the subwoofer to deliver consistent performance even at different volume settings, which is an outstanding feature for audio enthusiasts.

Audio Import Group
Pekka Kinnunen
Palkkitie 10
84100 Ylivieska
Finland

Contact: info@audioimport.fi

Product Specifications


Manufacturer

Product type

Features


  • Highlights

    • Power handling 1200 watts RMS, peak power handling 4800 watts.
    • Impedance: Double 2 Ohm or Double 4 Ohm, 3" coil diameter.
    • Playback range 10Hz-500Hz, resonance frequency 29.61 Hz.
  • Uvp

    899

weight

18.0 kg

Watt RMS Load Capacity

1200

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Your advantages with Masori


Buy the precision and performance of the DD Audio Power Tuned 3518i ESP subwoofer online at a great price

The DD Audio Power Tuned 3518i ESP subwoofer stands out with its impressive combination of high efficiency and precise sound reproduction. With an RMS power handling of 1200 watts and a peak power handling of 4800 watts, this 18-inch driver delivers powerful bass that impresses in every respect. Thanks to the Masori Lowest Price Guarantee, you can be sure you're always getting this remarkable subwoofer at the best price. Its patented ferrite magnet system and ultra-high energy ensure that the 3518i ESP will delight any audiophile. The dual impedance option of 2 ohms or 4 ohms offers wiring flexibility for different amplifier applications. Visit masori.de to benefit from the unique Masori Lowest Price Guarantee and discover the affordability of this sonic masterpiece.

Equivalent volume and resonance frequency of the DD Audio Power Tuned 3518i ESP subwoofer

The equivalent volume (Vas) of the DD Audio subwoofer is a remarkable 136.48 liters, allowing it to produce excellent bass in relatively small enclosures without sacrificing depth and precision. This characteristic makes it particularly versatile, as it delivers outstanding performance even in space-constrained applications. The resonant frequency of 29.61 Hz is extremely low, giving the system the ability to reach extremely low frequencies, ensuring impressive bass reproduction. A higher resonant frequency would result in a loss of bass reproduction, while a lower resonant frequency could result in insufficient bass emphasis. The specifications of this subwoofer are above average compared to the market and offer the user a wide range of possible applications.

Mechanical and electrical quality – What do Qms, Qes, and Qts mean?

With a mechanical quality factor (Qms) of 4.38 and an electronic quality factor (Qes) of 0.50, this subwoofer achieves a total quality factor (Qts) of 0.45. The Qms reflects the sharpness of the peak, which is achieved through mechanical forces, while the Qes corresponds to the electrical damping factor. Combined, these values ​​determine the controlled reproduction of the subwoofer. A Qts of 0.45 indicates balanced bass reproduction, supporting both punch and precision in the representation of low frequencies. A lower Qts could make the bass repetition crisper, while a higher value could make it seem more muted—an excellent match compared to competitors.

DD Audio 3518i ESP: Movement and excursion with Xmax of ±17.5mm

The linear excursion (Xmax) of ±17.5 mm is a key indicator of the subwoofer's ability to generate large air displacements and thus produce powerful bass. A higher Xmax would displace even more air and potentially produce deeper bass, while a lower excursion would significantly limit bass intensity. The value of ±17.5 mm places the 3518i ESP firmly in the league of high-end subwoofers that offer both excellent levels and precision.

Coil diameter and magnet weight as the powerhouse of the DD Audio 3518i ESP

With a 76.2mm (3-inch) coil diameter and a magnet weight of 350 oz, the 3518i ESP provides a robust foundation for powerful reproduction. The large coil diameter ensures better thermal management and thus longer durability at high power, while the substantial magnet weight supports strong magnetic control and thus precision. Any higher values ​​would further increase the subwoofer's thermal capacity and magnetic control, while any reduction in these values ​​could jeopardize performance.

The influence of Carbon Fiber Blend Cone (CFB) composition on subwoofer performance

The DD Audio Power Tuned 3518i ESP subwoofer utilizes Carbon Fiber Blend Cone (CFB) technology to achieve an exceptionally high strength-to-weight ratio. The use of carbon fiber allows for increased rigidity while reducing overall weight, resulting in responsive bass performance. A higher strength-to-weight ratio would further refine sound reproduction, while a lower strength could negatively impact sound quality. This technology ensures exceptional robustness and durability compared to conventional cone structures in the industry.

Vario-Density Extended Range of Motion Surround (V-ROM) and its acoustic advantages

The Vario-Density Extended Range of Motion Surround (V-ROM) in the DD Audio 3518i ESP provides ultimate linear control at high excursion, enabling dynamic bass reproduction. By keeping the control ribs at a lower density, this technology allows for maximum movement without loss of control. A higher surround density could create the impression of faster bass, which could result in less controlled excursions at lower surround density. Adjusting the density in the suspension area is crucial for high-quality bass reproduction and sets the subwoofer apart from conventional models.

Efficiency through the Tuned Spider System (TSS) of the DD Audio subwoofers

The Tuned Spider System (TSS) is another notable feature of this subwoofer, specifically tuned for features such as high definition and power management. An optimally tuned suspension prevents distortion at high power levels and ensures the perfect balance between control and flexibility. This system provides consistent sound quality at various volume levels – a feat often unattainable by subwoofers without a customized suspension. The TSS greatly optimizes performance, significantly increasing effectiveness with increased precision and longevity of the subwoofer.

Die-cast aluminum basket and its influence on the structure and sound quality of the subwoofer

The 3518i ESP's die-cast aluminum basket provides a stable, resonance-free base that minimizes vibration and unwanted feedback. Aluminum is known for its strength and lightness, making this subwoofer a durable investment. This type of construction is ideal for environments demanding high performance, as it prevents the subwoofer's structure from being weakened by vibration. Using other materials could compromise stability and sonic clarity. Market standards show that die-cast aluminum baskets consistently deliver a positive quality effect.

Cooling and performance through Super-Frame cooling technology

The Super-Frame (S-Frame) of this model not only maximizes the spider diameter but also acts as a secondary shorting ring, aiding additional heat dissipation. This feature ensures that even under high loads, the coil remains optimally cooled, efficiently increasing performance. If these aspects are not present, overheating and long-term damage could occur. Furthermore, more effective heat management would be impossible, reducing long-term durability. The design incorporates advanced technology that makes the DD Audio subwoofer resilient to intense use.

The advantages of the SuperCharge option explained in detail

With the optional SuperCharge function, you can further increase the efficiency and power of the DD Audio 3518i ESP. This function is aimed at users who want to get the most out of their system – it improves magnetic field stability and drastically reduces distortion at high levels. Failure to use this option would hinder the subwoofer's full potential – while using it further enhances the sound quality. In the car hi-fi sector, this function stands out from the standard, offering experts a peak performance that even the most sophisticated systems cannot match. For more support and information, Masori offers exciting options: Take advantage of on-site installation in Frankfurt (Oder) or access personal expert support via FAQ & Help . Stay up-to-date with trends and knowledge in the Audio Blog .