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Sundown Audio Zv7 15 15" (38cm) Subwoofer
SKU:  ZV7-D1
3500 Watt

Zv7 15

SKU:  ZV7-D1

Technical Highlights

  • Power: 3500 W RMS, 7000 W Peak, Impedance: 1.96 / 3.84 Ohm.
  • Resonant frequency: 30.824 Hz, Sensitivity: 91.582 / 89.316 dB.
  • Linear excursion: 42 mm, Bass reflex volume: 113.27 liters.
  • More technical details
€2.499,99
€2.499,99 €2.499,99
5% discount with credit card
inkl. VAT , possibly plus shipping
Variant: D1 (2x1 Ohm)
Delivery
Jun 5, - Jun 7,
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Zv7 15 by Sundown Audio Description

The Zv7 15 is a Subwoofer from Sundown Audio that delivers impressive performance with its 15" (38cm) diaphragm. With an RMS power handling of 3500 W, it provides powerful sound and is designed for maximum loads of up to 7000 W. The resonance frequency is around 30 Hz, while its sensitivity exceeds 89 dB. This model is specialized in providing precise bass reproduction, with the bass reflex enclosure being particularly suitable at 113.27 liters. Closed enclosures are not recommended. The linear excursion is a remarkable 42 mm, ensuring particularly dynamic sound depth.

 

Technical Specifications & T/S Parameters (D1 / D2)

  • 15" (38cm) Subwoofer
  • Power Handling (RMS): 3500 W / 3500 W
  • Maximum Power Handling (Peak): 7000 W / 7000 W
  • DC Resistance (Re): 1.96 Ohm / 3.84 Ohm
  • Resonance Frequency (Fs): 30.824 Hz / 30.399 Hz
  • Equivalent Volume (Vas): 33.273 L / 35.564 L
  • Electrical Quality (Qes): 0.412 / 0.364
  • Mechanical Quality (Qms): 5.919 / 5.607
  • Total Quality (Qts): 0.385 / 0.342
  • Inductance (Le): 1.829 mH / 3.716 mH
  • Force Factor (BL): 23.647 NA / 34.26 NA
  • Moving Mass (Mms): 606.05 g / 582.893 g
  • Compliance (Cms): 43.9942 µM/N / 47.022 µM/N
  • Sensitivity (Sens @ 1w/1m): 91.582 dB / 89.316 dB
  • Linear Excursion (Xmax): 42 mm / 42 mm

Installation Dimensions & Enclosure Recommendations

  • Cutout Diameter: 28.17 cm
  • Bass Reflex Enclosure: 113.27 liters
  • Recommended Port Area: 387.10 cm²
  • Closed Enclosure: Not recommended
  • 4th Order Bandpass (Closed Side): 56.63 liters
  • 4th Order Bandpass (Ventilated Side): 169.90 liters
  • 4th Order Bandpass Port Area: 774.19 cm²
  • 4th Order Bandpass Port Length: 20.32 cm

Frequently Asked Questions about Zv7 15

What is the RMS power of the Zv7 15 Subwoofer from Sundown Audio?

The Zv7 15 Subwoofer from Sundown Audio offers an impressive RMS power of 3500 watts in both the D1 and D2 versions. This high power capacity allows the subwoofer to deliver extraordinary sound quality even in demanding application scenarios. With a maximum power (Peak) of 7000 watts, the Zv7 15 can produce extreme sound pressure levels and is ideal for discerning audio enthusiasts looking for a powerful subwoofer capable of reproducing concert-like sound experiences. This power range also qualifies it for use in high-performance car audio systems or professional audio applications.

What is the resonance frequency of the Sundown Audio Zv7 15?

The Zv7 15 Subwoofer from Sundown Audio has a resonance frequency of 30.824 Hz for the D1 variant and 30.399 Hz for the D2 variant. This low resonance frequency is advantageous for reproducing deep bass, which is demanded in many music genres, especially in electronic music and hip-hop. The resonance frequency significantly influences how the subwoofer performs in different enclosure types, making it important to choose the right enclosure to fully exploit the acoustic capabilities of the subwoofer. A detailed tuning of the resonance frequency is also a crucial aspect of optimizing the overall sound experience.

What enclosure recommendations are there for the Zv7 15 Subwoofer?

For the Zv7 15 Subwoofer from Sundown Audio, a bass reflex enclosure with a volume of 113.27 liters is recommended. The recommended port area for this enclosure is 387.10 cm². A sealed enclosure is not recommended, as it could limit the performance and sound reproduction of the subwoofer. Alternatively, a 4th order bandpass enclosure is suitable, with a sealed side of 56.63 liters and a vented side of 169.90 liters. Here, a port area of 774.19 cm² and a port length of 20.32 cm should be noted to ensure optimal sound tuning and performance.

What is the significance of the Thiele-Small parameters of the Zv7 15?

The Thiele-Small parameters are crucial for the design and tuning of a Subwoofer. The Zv7 15 from Sundown Audio has a total quality factor (Qts) of 0.385 (D1) and 0.342 (D2), indicating a balanced combination of electromechanical properties. The mechanical quality factor (Qms) is 5.919 / 5.607, while the electrical quality factor (Qes) measures 0.412 / 0.364. These parameters assist in calculating the enclosure requirements and can be used to extract the best performance from the Subwoofer by serving as a basis for determining the type and size of the enclosure. Careful consideration of these parameters can significantly influence the sound.

What are the inductance and sensitivity of the Zv7 15?

The Sundown Audio Zv7 15 has an inductance (Le) of 1.829 mH for the D1 variant and 3.716 mH for the D2 variant. The sensitivity, measured at 1 Watt/1 meter, is 91.582 dB for D1 and 89.316 dB for D2. This technical parameter combination implies that the Subwoofer is capable of producing high acoustic levels with less power loss, allowing it to be effectively operated with lower-powered amplifiers. A lower inductance reduces distortion at high frequencies and results in more precise bass reproduction, which is significant for music lovers who value sound clarity.

How is the compatibility of the Zv7 15 ensured in different vehicles?

The compatibility of the Zv7 15 Subwoofer from Sundown Audio with various vehicles largely depends on the mounting opening, which is 28.17 cm. This diameter is a critical factor in ensuring that the Subwoofer can be integrated into the existing spaces of vehicles. Since no specific car brands or models are mentioned, potential buyers should ensure that there is enough space in their vehicle for a bass reflex enclosure of 113.27 liters. Careful planning of the installation in relation to these dimensions is required to fully utilize the capabilities of the Zv7 15.

What does the force factor (BL) of the Zv7 15 mean for the sound?

The force factor (BL) is a critical parameter for the performance of a Subwoofer. For the Zv7 15 from Sundown Audio, the BL value is 23.647 NA for the D1 variant and 34.26 NA for the D2 variant. A high BL value indicates that the Subwoofer generates a strong magnetic force in relation to the moving mass, leading to precise and controlled sound. This is especially important for music genres with deep bass, as it allows for a drastic improvement in sound quality and responsiveness. A higher BL value also ensures a more efficient transfer of electrical energy into acoustic energy.

How does the moving mass (Mms) of the Zv7 15 affect sound quality?

The moving mass (Mms) of a Subwoofer plays a crucial role in sound production. The Zv7 15 from Sundown Audio has a moving mass of 606.05 g (D1) and 582.893 g (D2). A higher Mms can result in the Subwoofer displacing larger amounts of air, which is particularly beneficial at low frequencies. This enables a stronger and more voluminous bass reproduction. It is important to consider the Mms in relation to other parameters such as resonance frequency and total quality to ensure that the Subwoofer delivers its maximum performance and sound fidelity.

What is the linear excursion (Xmax) of the Zv7 15?

The linear excursion (Xmax) is an important parameter that describes how far the diaphragm of the Subwoofer can move without causing distortion. The Sundown Audio Zv7 15 has an impressive Xmax of 42 mm for both the D1 and D2 variants. This high excursion allows the Subwoofer to produce high sound pressure levels, which is particularly relevant when deep bass is desired. A larger Xmax means that the Subwoofer can displace more air, resulting in stronger and fuller bass. This specification is ideal for applications that require the reproduction of low frequencies.

What is the DC resistance of the Sundown Audio Zv7 15?

The DC resistance (Re) of the Zv7 15 Subwoofer from Sundown Audio is 1.96 Ohm for the D1 variant and 3.84 Ohm for the D2 variant. The DC resistance is an important parameter as it represents the electrical impedance of the speaker in the DC range and thus affects the efficiency of the power amplifier. A lower Re value indicates higher efficiency by minimizing power loss and maximizing current flow. This has practical significance in both car and stationary audio systems to achieve the best possible power draw characteristics and thus power conversions.

Manufacturer information / responsible person

JR Labs
Rainer Jakob
Heinrich-Hertz-Straße 13 A
46325 Borken
Germany

Contact: jakobrainer@jr-labs.eu