3. SA15 v.2

Sundown Audio SA15 v.2 15" (38cm) Subwoofer

1 Review

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Sundown Audio SA15 v.2 15" (38cm) Subwoofer

1 Review

  • Powerful motor, 2.75-inch coil, 1000 watts RMS.
  • 19 mm XMAX, 35 mm x-mech, Faraday ring against distortion.
  • Optimized for bass reflex, closed and bandpass enclosures.
  • Mehr technische Details
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€568,65
€669,00 €568,65
5% Rabatt mit Vorkasse
inkl. VAT , possibly plus shipping
Klarna Bequem in 12 zinsfreien Raten à €47,38 mit Klarna zahlen.
Impedance: D2 (2x2 Ohm)
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Dec 6, - Dec 7,
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SA15 v.2 by Sundown Audio

The Sundown Audio SA Series, which includes the Sundown Audio SA15 v.2, is the top-selling series from Sundown Audio! The new v.2 version features a larger, more powerful motor to drive the bigger 2.75-inch coil and stronger centering—this maintains the perfect balance of the original SA Series while increasing the power handling to 1000 watts RMS.

The Sundown Audio SA15 v.2 has a linear excursion (XMAX) of 19 mm, which allows for just over 35 mm x-mech. The motor also features a large magnet ID shorting ring (Faraday ring) to reduce distortion caused by inductance and inductance variation over the stroke.

The 18-inch model features a larger motor than the SA-10/12/15 v2, with a diameter of 205 mm and a magnet gap height of 60 mm. It has a large centering spider pack with a 234 mm diameter for very high mechanical excursion capacity. It uses the same 2.75″ coil as the other subwoofers in the SA v.2 series for a rated power of 1000 watts RMS.

Features

  • 15 inch subwoofer
  • Xmax = 19mm one-way by 70% BL
  • RMS Power = 1000 watts
  • Impedance: D2 or D4
  • Black 2.75-inch aluminum voice coil former for excellent heat dissipation
  • High-temperature copper voice coil wire
  • Large aluminum Faraday ring (magnet ID)
  • Spring-loaded terminals
  • High-strength aluminum cast frame
  • Optimized for small bass reflex enclosures, sealed enclosures, and bandpass enclosures

Parameters

T/S SPECS SAv2 15″ D2 SAv2 15″ D4
RE (Ohms) 3.89 5.83
FS (Hz) 36.8387 37.4160
VAS (L) 51.9387 45.3391
Qes 0.5847 0.6963
Qms 5.1005 5.7094
Qts 0.5245 0.6206
Le (mH) 3.6326 4.7903
BL (NA) 24.4656 29.1578
Mms (Grams) 388.9706 431.9464
Cms (uM/N) 47.9860 41.8886
Sens (dB @ 1w/1m) 88.22 87.08

Enclosure Recommendation:

  • Sealed enclosure: 56.6 liters
  • Bass reflex enclosure: 85 liters
  • Recommended tuning: 35Hz
  • Recommended port area: 283 cm²
  • Outer diameter: 39.6 cm
  • Mounting diameter: 35.6 cm

Frequent questions about SA15 v.2

Welche Auslenkung bietet der Sundown Audio SA15 v.2?

The Sundown Audio SA15 v.2 subwoofer offers a linear excursion (XMAX) of 19 mm, which is an outstanding measure for controlling diaphragm movement. This allows for a mechanical maximum excursion (x-mech) of over 35 mm, enabling the subwoofer to reproduce even deep frequencies with minimal distortion. Optimize your setup by selecting amplifiers and enclosures based on this physical capacity. This minimizes any acoustic anomalies and ensures precise bass reproduction. These specifications guarantee an uncolored sound quality that meets demanding listening habits.

Welche Leistung bringt der Sundown Audio SA15 v.2?

The Sundown Audio SA15 v.2 is equipped with a continuous power handling of 1000 Watts RMS. This capability ensures that the subwoofer delivers optimal results in both sealed and bass reflex designs. The drive with a high-temperature resistant copper voice coil wire on an aluminum former ensures efficient heat dissipation. Keep in mind that a suitable amplifier with similar power characteristics should ideally drive the subwoofer to ensure maximum performance without overheating risks. This ensures that the targeted sound radiation is maintained even at high levels.

Was sind die Thiele/Small Parameter des Sundown Audio SA15 v.2?

The Sundown Audio SA15 v.2 features differentiated Thiele/Small parameters for its variants: The Re value for D2 and D4 is 3.89 Ohm and 5.83 Ohm, respectively. The resonance frequencies are at 36.8387 Hz and 37.4160 Hz. The VAS values are 51.9387 L and 45.3391 L. The quality factors Qes and Qts are 0.5847/0.6963 and 0.5245/0.6206, respectively. These parameters guide you in cabinet design. The higher Qms values of 5.1005 and 5.7094 primarily influence the oscillation behavior in resonance states, which is relevant for precise bass construction.

Wie reduziert der SA15 v.2 Verzerrungen durch seine spezifische Konstruktion?

The Sundown Audio SA15 v.2 uses a large magnet ID short circuit ring, also known as a Faraday ring, to effectively reduce distortion. This ring minimizes inductance fluctuations caused by the movement of the voice coil, which increases sound precision. This is particularly important at high power, as it reduces the harmonic distortions that can occur under alternating stress due to inductance. Thus, the linearity and load capacity of the unit are supported, which is essential for consistent sound quality across all frequency ranges. A significant advantage for the sound fidelity of demanding audio applications.

Welche Gehäuseempfehlungen gibt es für den SA15 v.2?

For the Sundown Audio SA15 v.2, there are clear recommendations to optimally utilize the sound performance. A sealed enclosure should have a volume of 56.6 liters, which allows for deeper and more precise bass reproduction. For bass reflex constructions, 85 liters with a recommended tuning of 35 Hz are advised. Additionally, the port area of 283 cm² is crucial to adequately direct the airflow and minimize turbulence noise. The choice of enclosure and tuning significantly affects the achievable sound texture and performance range.

Welche Abmessungen hat der SA15 v.2 und worauf muss man bei der Installation achten?

The Sundown Audio SA15 v.2 subwoofer has an outer diameter of 39.6 cm and a mounting diameter of 35.6 cm. When installing, it is important to pay attention to the installation depth and the available space. Integrating the subwoofer into a precisely fitting enclosure minimizes vibrations and unwanted resonances. The magnet should also have enough space to ensure good heat dissipation. The dimensions are crucial for a smooth integration into existing systems without compromising sound quality.

Welche Art von Schwingspule verwendet der SA15 v.2?

The Sundown Audio SA15 v.2 subwoofer series utilizes a 2.75-inch copper voice coil on an aluminum former, specifically designed for high thermal loads. The coil structure provides excellent heat dissipation properties, resulting in a significant reduction in thermal compression and thus more consistent performance characteristics, especially under continuously high loads. The robust materials contribute to extending the lifespan of the unit while maintaining high musical performance at all volume levels. A considerable advantage when it comes to deeper and more powerful bass reproduction.

Was macht den Aluminium-Faraday-Ring im SA15 v.2 besonders?

The aluminum Faraday ring in the Sundown Audio SA15 v.2 is specifically designed to reduce distortions caused by inductance fluctuations and to balance the electromagnetic flux. This ring ensures that the magnetic circuit remains more stable, thereby improving the efficiency and linearity of the voice coil movement. The ring helps to extend high-frequency resolution, allowing the SA15 v.2 subwoofer to operate with low distortion. This creates a dynamic sound image with full bass power, ideal for consumers who expect the highest authenticity and precision from their audio systems.

Wie verbessert der Sundown Audio SA15 v.2 die Kühlung?

The Sunown Audio SA15 v.2 subwoofer improves cooling through various design features. This includes the aluminum carrier of the 2.75-inch voice coil, which provides excellent heat dissipation, as well as a lattice-like cast frame design that maximizes airflow. This combination prevents thermal compression even under intense long-term loads, minimizing the risk of performance loss. The rapid heat dissipation not only ensures increased reliability but also enables consistent performance, which is essential for audio-focused environments. An optimal choice for users who require intense, lossless audio performance.

Welche Sensitivität besitzt der Sundown Audio SA15 v.2?

The sensitivity of the Sundown Audio SA15 v.2 subwoofer varies with impedance; with a value of 88.22 dB for the D2 and 87.08 dB for the D4. This measures the efficiency of the subwoofer to produce sound in relation to an electrical voltage of one watt at a distance of one meter. A higher sensitivity means that less amplifier power is needed to reach a certain volume level. Therefore, careful matching with amplifiers is important to fully exploit the maximum volume level while also maximizing sound quality.

Herstellerinformation/verantwortliche Person

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

Contact: jakobrainer@jr-labs.eu

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