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Sundown Audio

SA6.5 v.1

6.5" (16.5cm) Subwoofer

199,00€
199,00€ 199,00€
incl. VAT , possibly plus shipping

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Highlights

  • High performance, installation depth < 10cm, fixed pole design.
  • 10mm XMAX, Magnet ID Faraday ring, distortion reduction.
  • 1.5" copper coil, 200 watts RMS, D2/D4 impedance.
Impedance: D2 (2x2 Ohm)
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brand: Sundown Audio
Delivery time:
Available for delivery in 1-4 days
Number:
Piece
Watt RMS:
200
Subwoofer Type:
ferrite
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Sundown Audio-SA6.5 v.1-6.5" (16,5cm) Subwoofer-masori-kaufen
199,00€
199,00€ 199,00€

The Sundown Audio SA6.5 v.1 was developed to achieve extremely high performance with a mounting depth of less than 10cm and is the latest member of the SA series. As with several other lines (especially SLD and SD-4), Sundown Audio has also used a fixed pole design here. This allows the back plate to rest against the rear wall of the enclosure. This further reduces the requirements for the effective depth of this subwoofer. The Sundown Audio SA6.5 v.1 has a linear excursion of a full 10 mm in one direction and an x-mech that is more than twice as large! Furthermore, Sundown Audio has even incorporated a magnet ID Faraday ring to reduce inductive distortion!

features

  • 6.5" (16.5cm) Subwoofer
  • RMS power: 200 watts
  • Impedance: D2 or D4
  • Reel: 1.5" diameter copper windings with black aluminum
  • X-Max: 10 mm per direction
  • Magnet-ID Faraday Ring

Parameter

T/S SPECS SA 6.5" D2 SA 6.5" D4
RE (Ohms) 4.0 7.1
FS (Hz) 48.9 51.8
VAS (L) 4.1 3.6
Qes 0.50 0.54
Qms 4.82 4.65
Qts 0.46 0.49
The (mH) 1.69 2.45
BL (NA) 13.5 17.9
Mms (Grams) 74.8 75.6
Cms (uM/N) 0.14 0.12
Sensitivity (dB @ 1w/1m) 81.6 81.5

Case recommendation:

  • Closed housing: 4.2 liters
  • Bass reflex enclosure: 8.5 liters
  • Recommended tuning: 40Hz
  • Recommended port area: 25.8 cm²
The Sundown Audio SA6.5 v.1 is a compact 6.5-inch subwoofer designed to deliver high performance with a mounting depth of less than 10 cm. It has an RMS power of 200 watts and offers linear excursions of up to 10 mm. The fixed pole design reduces the required mounting depth, and the back plate can be flush against the rear wall of the enclosure. A magnet ID Faraday ring minimizes inductive distortion. The subwoofer is available in D2 and D4 impedances, each with different T/S parameters tailored for specific applications.
The Thiele-Small parameters of the Sundown Audio SA6.5 v.1 vary depending on the impedance. For the D2 variant, RE is 4.0 Ohm, FS is 48.9 Hz, VAS is 4.1 liters, Qes is 0.50, Qms is 4.82, and Qts is 0.46. The inductance Le is 1.69 mH, the BL value is 13.5 NA, and the Mms is 74.8 grams. In comparison, the D4 variant has the following values: RE is 7.1 Ohm, FS is 51.8 Hz, VAS is 3.6 liters, Qes is 0.54, Qms is 4.65, and Qts is 0.49. The inductance Le here is 2.45 mH, the BL value is 17.9 NA, and the Mms is 75.6 grams.
The linear excursion (x-max) of the Sundown Audio SA6.5 v.1 is 10 mm in one direction. This allows for remarkable excursion capability for a subwoofer of this size. The x-mech, which stands for mechanical load capacity, is more than twice as large as the x-max, indicating that the subwoofer remains stable even under extreme operating conditions. This design ensures that even at high volumes, the sound remains undistorted. The installation of a magnet ID Faraday ring additionally helps to reduce inductive distortions, making the sound even cleaner.
For the Sundown Audio SA6.5 v.1, a sealed enclosure with a volume of 4.2 liters or a bass reflex enclosure with 8.5 liters is recommended. The ideal tuning for the bass reflex enclosure is at 40 Hz. A port area of 25.8 cm² is also recommended. These enclosure recommendations ensure that the subwoofer can fully utilize its performance and that the sound is both powerful and precise. Especially with tuning, it is important to adhere to the recommended frequency of 40 Hz to achieve the best results.
The Faraday ring in the Sundown Audio SA6.5 v.1 is a crucial element in minimizing inductive distortions. This metal ring, which is attached around the magnet, works to reduce the frequency dependence of the inductance. As a result, a clearer and more detailed sound is produced, especially at high frequencies. The effect of the ring is therefore important not only for the clarity of the sound but also for the efficiency of the subwoofer, leading to an improved overall output. The incorporation of the ring demonstrates the careful technical design of the subwoofer.
The Sundown Audio SA6.5 v.1 is available in two impedance options: D2 and D4. These allow for the subwoofer to be adjusted according to the requirements of the audio system. The D2 variant has an impedance of 4 ohms, while the D4 variant has 7.1 ohms. The impedance selection allows for finer tuning of the overall impedance of the system, thereby optimizing sound quality and overall performance. The specific differences in parameters between these two options enable adaptability for various audio setups.
The coil of the Sundown Audio SA6.5 v.1 consists of copper windings on a black aluminum carrier and has a diameter of 1.5 inches. These materials were chosen for their efficiency and durability to maximize thermal resilience while ensuring high audio output quality. The copper coil provides excellent electrical properties, while the aluminum carrier contributes to cooling. This combination allows the subwoofer to deliver consistently high performance even under heavy load, keeping the sound image clean and precise.
The installation of the Sundown Audio SA6.5 v.1 is relatively simple due to its installation depth of less than 10 cm, provided that the enclosure specifications are observed. This compact design allows the subwoofer to be used in vehicles with limited space. It is important to perfectly match the enclosure to the 40 Hz tuning and suitable enclosure volumes (sealed: 4.2 liters, bass reflex: 8.5 liters). This maximizes sound performance. A careful measurement of the installation space in the vehicle before installation is essential to ensure that the back plate of the subwoofer is flush against the back wall of the enclosure.
The SA6.5 v.1 is the latest model in the Sundown Audio SA series and is known for its compact design and high performance. Its mounting depth of less than 10 cm is particularly space-saving compared to the SLD and SD-4 models, while the solid pole design of the subwoofer offers innovative solutions for reducing the installation depth. The SA6.5 v.1 still maintains the high sound quality that is typical of Sundown Audio products. Additionally, the magnet ID Faraday ring and optimized x-max contribute to clearer sound reproduction, making it stand out in technical aspects.
The enclosure plays a critical role in the performance of the Sundown Audio SA6.5 v.1. The recommended enclosure sizes – 4.2 liters for a sealed enclosure and 8.5 liters for a bass reflex enclosure – are optimal for the subwoofer's performance. These recommendations are based on the physical parameters of the SA6.5 v.1 to ensure the best resonance frequency (40 Hz in a bass reflex enclosure). A correctly tuned enclosure ensures that the subwoofer reaches its full capacity in terms of bass reproduction and power without sacrificing sound quality.

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

Contact: jakobrainer@jr-labs.eu

Product Specifications

Manufacturer

Sundown Audio

Product type

6.5" (16.5cm) subwoofer

Features

  • Highlights

    • High performance, installation depth < 10cm, fixed pole design.
    • 10mm XMAX, Magnet ID Faraday ring, distortion reduction.
    • 1.5" copper coil, 200 watts RMS, D2/D4 impedance.

  • Uvp

    199.99

weight

3.6 kg

Watt RMS Load Capacity

200

configurators

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Your advantages with Masori

Buy Sundown Audio SA6.5 v.1: Highest performance and precision

The Sundown Audio SA6.5 v.1 is an absolute highlight in the car hi-fi world. With an RMS output of 200 watts, this 6.5 subwoofer promises remarkable acoustic performance. Its installation depth of less than 10 cm makes it extremely flexible. If you choose to purchase from Masori, you also benefit from the lowest price guarantee. The innovative fixed-pole design ensures that the subwoofer fits perfectly even in tight spaces. Thanks to the magnetic ID Faraday ring, the subwoofer minimizes inductive distortion and ensures clear sound even at high volumes. With the Sundown Audio SA series, you're assured of the finest technology among car hi-fi products, available at the best prices in the Masori online shop.

Unique deep bass performance with 200 watts RMS

The 6.5 subwoofer from Sundown Audio SA6.5 v.1 impresses with an RMS power rating of 200 watts. This power ensures that powerful bass is always produced, even at high loads, without losing clarity or precision. The 200 watts RMS give the subwoofer the ability to confidently reproduce even the lowest frequencies, making it an ideal candidate for music genres that require powerful bass. While a higher RMS rating would allow for even louder volume, it also increases the power supply requirements and can increase the thermal load on the subwoofer.

Impedance options for maximum flexibility

The Sundown Audio SA6.5 v.1 subwoofer is available with a dual coil in the D2 or D4 versions. With an impedance of 4 ohms (D2) or 7.1 ohms (D4), you have the flexibility to tailor the system to your needs. A lower impedance, such as the D2 version, allows for greater current consumption and thus higher volume levels, but requires a corresponding amplifier power. The D4 version, on the other hand, offers a lower current load for the amplifier but may have limitations in terms of maximum volume.

Unparalleled deflection with 10 mm Xmax

Sundown Audio achieved an impressive linear excursion of 10 mm per direction in the SA6.5 v.1. This excursion reflects the subwoofer's ability to move air, thus producing powerful, distortion-free bass. A lower Xmax would result in the subwoofer clipping more quickly at high volumes and not delivering the full bass dynamics. With the X-mech, more than twice the size of the Xmax, it is also resistant to mechanical overload, increasing its durability.

Top-class technology through magnetic ID Faraday ring

The Sundown Audio SA6.5 v.1's built-in Magnetic ID Faraday Ring effectively reduces inductive distortion generated in the voice coil. This technology not only improves sound fidelity but also contributes to a more stable and cleaner bass response. The absence of such elements would result in higher distortion, especially at high frequencies, which could lead to a less precise soundstage.

Thiele-Small Parameters: A Detailed Analysis

The Sundown Audio SA6.5 v.1 impresses with precise Thiele-Small parameters. Particularly noteworthy is the resonance frequency of 48.9 Hz (D2) and 51.8 Hz (D4), which creates the perfect foundation for deep bass frequencies. The equivalent volume (VaS) of 4.1 L (D2) and 3.6 L (D4) indicates the optimal cabinet size, with a higher VaS value requiring larger cabinets. The efficiency of 81.6 dB (D2) and 81.5 dB (D4) is average for this class, but still ensures decent levels with manageable amplifier power.

Recommended case design for maximum performance

For the Sundown Audio SA6.5 v.1, a 4.2-liter sealed enclosure or an 8.5-liter bass-reflex enclosure is recommended, with a 40 Hz tuning frequency being ideal. The recommended port area of ​​25.8 cm² for the bass-reflex enclosure ensures consistent airflow and maximum bass output without disruptive airflow noise. Deviations from this recommendation could compromise the subwoofer's efficiency, particularly its low-frequency reproduction and the overall acoustics in the vehicle.

Economical construction with black aluminum

The 1.5 coil of the Sundown Audio SA6.5 v.1 consists of copper windings on black aluminum. This combination is ideal for high thermal conductivity and mechanical robustness. The choice of aluminum as the winding base reduces the coil's weight, allowing for faster response to audio signals. Switching to a different material could negatively impact thermal capacity, frequency response, and overall service life.

Optimized Q-factors for a balanced sound

With a Qes of 0.50 (D2) and 0.54 (D4), a Qms of 4.82 (D2) and 4.65 (D4), and an overall Qts of 0.46 (D2) and 0.49 (D4), the Sundown Audio SA6.5 v.1 demonstrates balanced acoustic performance. These values ​​support effective subwoofer integration into various vehicle acoustics and are optimized for hybrid enclosure designs. Any deviation here could result in resonance peaks or flat bass reproduction. Overall, the Sundown Audio SA6.5 v.1 offers a sophisticated package of technical specifications that are second to none. Whether you're looking for the finest details or powerful bass, this subwoofer masters every audiophile scenario with ease. For installation options, Masori offers on-site installation in Frankfurt (Oder) . Questions about technical details? Our expert support FAQ &amp; Help or our audio blog provide all the answers.