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Sundown Audio X-18 v.4 18" (46cm) subwoofer
Sundown Audio X-18 v.4 18" (46cm) subwoofer
- Offers 3000 W RMS and 6000 W peak power, high efficiency.
- Flexible with 1-ohm or 2-ohm voice coils, ideally adaptable.
- Deep bass reproduction through 30 mm Xmax, precise and powerful.
- More technical details
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X-18 v.4 by Sundown Audio
The Sundown Audio X-18 v.4 subwoofer is an 18-inch (46 cm) model in the Xv4 series, delivering an impressive 3000 watts RMS and 6000 watts peak power. Its dual voice coils, available in 1-ohm or 2-ohm configurations, offer flexibility for various applications. The subwoofer's high-performance 9.25-inch motor, combined with the precision-machined X v.4 voice coil, ensures stability. With deep bass response enabled by a 30 mm Xmax driver, this model delivers clear, crisp sound. The subwoofer is compatible with both sealed and ported enclosures, with a port tuning of 32 Hz recommended for optimal performance. The X-18 v.4 is engineered for extreme durability and impressive sound quality.
- 18″ Subwoofer of the Xv4 series
- 3000 W RMS / 6000 W peak power
- Options with dual 1-ohm or dual 2-ohm voice coils
- Precision-machined X v.4 coils for stability
- High-performance motor with a 9.25″ diameter
- Deep bass reproduction with 30 mm Xmax
- Compatible with closed or open enclosures
- Recommended port tuning: 32 Hz
- Designed for extreme durability and clear sound
Technical data
- Specification Value
- RMS power 3000 W
- Peak power 6000 W
- Displacement 0.28 cu ft
- Installation depth 15″
- Outer diameter 18.42″
- Cutout diameter 16.69″
- Motor diameter 9.25″
- Closed enclosure not recommended
- Ported enclosure 7.00 cu ft
- Recommended port tuning: 32 Hz
- Recommended port area: 112 sq in
- 4th order, closed side 3.0 cu ft
- 4th order, ported side 9.0 cu ft
- 4th order, port area 180 sq in
- 4th order, port length 8″
- Xmax 30 mm
- SD (membrane area) 113.41
- RE (Ohm) 2.05 / 3.74
- FS (Hz) 25.87 / 25.58
- VAS (L) 93.67
- Qes 0.63 / 0.55
- Qms 4.13 / 4.03
- Qts 0.54 / 0.84
- BL (NA) 19.74 / 26.8
- Mms 737.81 / 656.74
- Sensitivity 86 / 87 dB
T/S specifications
- RMS power (D2): 3000
- RMS power (D1): 3000
- Peak power (D1): 6000
- Peak power (D2): 6000
- RE D1 (Ohm): 2.05
- RE D2 (Ohm): 3.74
- FS D1 (Hz): 25.87
- FS D2 (Hz): 25.58
- VAS D1 (L): 93.67
- VAS D2 (L): 1, 7, 58
- Qes D1: 0.63
- Qes D2: 0.55
- Qms D1: 4.13
- Qms D2: 4.03
- Qts D1: 0.54
- Qts D2: 0.84
- BL D1 (NA): 19.74
- BL D2 (NA): 26.8
- Mms D1 (grams): 737.81
- Mms D2 (grams): 656.74
- Cms D1 (uM/N): 51.28
- Cms D2 (uM/N): 58.9
- Sensitivity D1 (dB @ 1 W/1 m): 86
- Sensitivity D2 (dB @ 1 W/1 m): 87
- Xmax D1: 30 mm
- Xmax D2: 30 mm
- Subwoofer measurements: Displacement (inches): 0.28 cu.ft.
- Depth (inches): 15
- Cutout (inches): 16.69
- Motor diameter (inches): 9.25
- Bass reflex enclosure specifications: 7.00 cu ft
- Recommended opening area: 112 sq in
- Recommended opening frequency: 32 Hz
- Specifications of the 4th order casing: 3.0 cu ft
- 4th order, bass reflex side: 9.0 cu ft
- 4th order, port area: 180 sq in
- 4th order, port length: 8"
Frequent questions about X-18 v.4
Welche Leistung bietet der Sundown Audio X-18 v.4 Subwoofer?
Welche Leistung bietet der Sundown Audio X-18 v.4 Subwoofer?
Welche Gehäuseempfehlungen gibt es für den Sundown Audio X-18 v.4?
Welche Gehäuseempfehlungen gibt es für den Sundown Audio X-18 v.4?
Welche Schwingspulenausführungen bietet der X-18 v.4?
Welche Schwingspulenausführungen bietet der X-18 v.4?
Welche Abmessungen hat der Sundown Audio X-18 v.4 Subwoofer?
Welche Abmessungen hat der Sundown Audio X-18 v.4 Subwoofer?
Wie beeinflussen die Thiele-Small-Parameter den Klang des X-18 v.4?
Wie beeinflussen die Thiele-Small-Parameter den Klang des X-18 v.4?
Welche Eindbautiefe und zusätzliche Platzanforderungen hat der X-18 v.4?
Welche Eindbautiefe und zusätzliche Platzanforderungen hat der X-18 v.4?
Welches Maß an Empfindlichkeit bietet der X-18 v.4 und wie beeinflusst das den Sound?
Welches Maß an Empfindlichkeit bietet der X-18 v.4 und wie beeinflusst das den Sound?
Welche Auswirkungen hat der Xmax-Wert von 30 mm beim X-18 v.4?
Welche Auswirkungen hat der Xmax-Wert von 30 mm beim X-18 v.4?
Wie gestalten sich die Kompatibilitätsoptionen des X-18 v.4 in Audiosystemen?
Wie gestalten sich die Kompatibilitätsoptionen des X-18 v.4 in Audiosystemen?
Welche außergewöhnlichen Merkmale bietet der X-18 v.4 für extreme Audio-Anforderungen?
Welche außergewöhnlichen Merkmale bietet der X-18 v.4 für extreme Audio-Anforderungen?
Herstellerinformation/verantwortliche Person
Herstellerinformation/verantwortliche Person
Let customers speak for us
It's playing in an old, not ideally suited, sealed box. Just don't had the time to calculate and build a descent box.
But it's plays like it's on fire! Really satisfied with it! Never expected this for this price!
Really musical, really clean, pretty loud but tight.
Would reccomend 10/10.
Toller Lautsprecher mit sattem Bass und tollem Klang
Habe 2 Stück pro Tür verbaut.
Super Klang, super Druck.
Würde ich so weiterempfehlen und würde ich mir immer wieder kaufen.
Sie wurden mir durch euch angeboten und es war eine super Entscheidung. Danke dafür.
5 star for masori for always deliver quality materials. This time i went With the low price guarantee which they provide. I provided a screenshot of cheaper stp bulk Pack from germany to.
The money refund Was back 3 days later.
Only Thing missing Was the small pack of candy teddybears and a item send of Their choice from their shop.
This 2 things Will not lead to fewer stars in my opinion masori.de should have a special 5++ star for their awesome shop and customer behaviour.
Love you masori my car is full equipped with lots of quality from you.
Truly a nice looking sub, impressive performance, definitely I will order another B2 Rage 12v4. I hope you will update these images to the correct ones. (Actual images should attract buyers more)
Very good quality. 1200 CCA is more than enough to power my 1500W amplifier and have my electronics connected with out draining battery and no more power draining.
Ottimo prodotto, spedizione velocissima. Grazie
Ottimo prodotto
Tienen una calidad muy buena, se ven muy bien construidos y la experiencia sube a otro nivel utilizando los shakers!
Beste prijzen top materiaal.
Ik kan alleen maar zeggen dat Masori place to be is voor al uw audio producten.
1ste keer besteld uit België.
Massive 4 inch voice coil and ton of power handling, great venting around voice coil, also this vega series has black voice coils. Price/value ratio is very high with vega series.
What a Minimonster, 18Liter ported box,tuned to 32hz and plays very loud and even good on lows. Even when i'm underpowering and only giving 350-400watts max. I really love this 6,5 monster, also the aluminium basket is very strong and solid and has great venting for the voice coil. Having rubber surround and carbon fiber cone just makes this even more indestructible
What a Minimonster, 18Liter ported box,tuned to 32hz and plays very loud and even good on lows. Even when i'm underpowering and only giving 350-400watts max. I really love this 6,5 monster, also the aluminium basket is very strong and solid and has great venting for the voice coil. Having rubber surround and carbon fiber cone just makes this even more indestructible
👌 superr
Super Subwoofer mit extrem tiefem Bass. Die Kabel sind dick und hochwertig verarbeitet. Es gibt nichts zu beanstanden. Absolut empfehlenswert.
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