Focal K2 Power SUB25KXE 10" (25cm) Subwoofer

Name: Focal K2 Power SUB25KXE 10 inch subwoofer | Masori
Brand: Focal
Price: 357.26 EUR
Availability: OutOfStock
Rating: 5.0 (1 reviews)

1 Review

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Focal K2 Power SUB25KXE 10" (25cm) Subwoofer

1 Review

Rated power of 600 watts RMS, maximum power of 1,200 watts.
Nominal impedance of 4 + 4 Ω, DC resistance of 3.2 + 3.2 Ω.
K2 cone made of aramid fiber, aluminum frame, 10.6 kg weight.
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K2 Power SUB25KXE by Focal

Discover the powerful sound of the K2 Power SUB25KXE from Focal, a 10-inch (25 cm) subwoofer renowned for its outstanding performance and quality. Featuring a robust K2 cone made of aramid fiber and a dual voice coil, this subwoofer delivers an impressive nominal power of 600 watts RMS and a maximum power of 1,200 watts. The special rubber surround and aluminum frame ensure durability and stability. Thanks to the progressive spider and plug-in terminal block, it is easy to install and handle. The high power handling and low nominal impedance of 4 + 4 Ω make the K2 Power SUB25KXE an ideal choice for sound enthusiasts.

Technical Data

K2 cone made of aramid fiber
Spider with progressive profile
Special rubber surround
Aluminum frame
Motor unit with dual voice coil
Plug-in terminal block
Coil ventilation system
High power handling

Specifications

Nominal power: 600 watts RMS
Maximum power: 1,200 W
Sensitivity (2.83 V / 1 m): 84.5 dB
Diaphragm: K2 sandwich
Surround: Butyl
Nominal impedance: 4 + 4 Ω
DC resistance: 3.2 + 3.2 Ω
Voice coil diameter: 65 mm
Coil former: fiberglass
Layers: 4
Wire: CCAW
Net weight: 10.6 kg
Driver volume: 3 l

Parameters

DC resistance (Rdc): 3.2 + 3.2 Ω
Resonance frequency (Fs): 38 Hz
Diaphragm mass (Mms): 163 g
Compliance (Cms): 0.12 mm/N
Equivalent volume (Vas): 20 l
Total Q factor (Qts): 0.52
Electrical Q (Qes): 0.58
Mechanical Q (Qms): 5
Magnetic flux density (Bxl): 21.5 N/A
Diaphragm area (Sd): 327 cm²
Sound pressure level (SPL): 84.5 dB
Maximum excursion (Xmax): 22.5 mm

Focal K2 Power SUB25KXE Datenblatt

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Frequent questions about K2 Power SUB25KXE

Welche Vorteile bietet der K2 Konus aus Aramidfaser beim Focal K2 POWER SUB25KXE?

The K2 cone made of aramid fiber is a central feature of the Focal K2 POWER SUB25KXE and gives this car audio subwoofer its distinctive sound character. Aramid fiber is known for its high stiffness while being lightweight. This allows the diaphragm to respond particularly quickly and precisely to music signals, providing you with clear and nuanced bass reproduction. Especially if you enjoy listening to music at high volumes and don't want to miss important subtleties in the deep bass range, you will benefit from the dynamics of the K2 cone. Additionally, this robust fiber blend ensures a low distortion rate, resulting in an overall high-quality, uncolored sound image. Thanks to the K2 sandwich technology, the diaphragm remains torsionally rigid and resilient – even at high volume levels and strong bass attacks. If you would like more technical background information, you can visit our subpage on the Focal K2 POWER SUB25KXE, where we explain further details about this special material and its acoustic advantages.

Wie beeinflusst die doppelte Schwingspule die Tieftonwiedergabe?

The dual voice coil of the K2 POWER SUB25KXE from Focal is a true power amplifier for your bass range. With two separately connected coils (4 + 4 Ω), you can flexibly respond to different amplifier and wiring configurations. Especially in more complex car audio setups, you can connect the coils in parallel or in series to optimally adjust the impedance. This not only increases control over the subwoofer but also contributes to a more precise and powerful reproduction of deep bass frequencies. The coils are wound on a stable fiberglass carrier, which allows for optimal heat dissipation and increases the load capacity to 600 W RMS. This keeps the sound clean and distortion-free even at high levels. If you want detailed instructions on wiring the dual voice coil, you can find helpful tips in our Focal Tech blog.

Wie funktioniert das Spulenbelüftungssystem bei diesem High-End-Auto-Subwoofer?

The coil ventilation system in the Focal K2 POWER SUB25KXE ensures that the woofer stays cool even under prolonged use – and that is literally true. Behind the aluminum frame is a specially designed opening that directs air along the voice coil. This continuous airflow prevents excessive heat buildup during intense bass runs. Especially when you place a high value on powerful bass at loud levels, the subwoofer remains thermally stable thanks to the ventilation system. This, in turn, not only positively affects the lifespan of the speaker but also ensures consistently high sound quality without compromising dynamics. If you're looking for more information on the cooling technology of Focal key products, feel free to check out our summary on heat management.

Welche Aufgabe übernimmt die progressive Spinne beim K2 POWER SUB25KXE?

The progressive spider is a crucial building block for controlling the diaphragm movement and centering of the entire drive system. The Focal K2 POWER SUB25KXE features a spider with a progressive profile, which maintains a stable excursion curve due to its special shape and reduces unwanted noise. With each larger diaphragm excursion point, the spider builds your stability, allowing you to enjoy deep bass without worrying about distortion or imprecision, even at high levels. Especially if you enjoy bass-heavy music, you will feel this control – the diaphragm moves freely and accurately without overdriving. Additionally, it helps to minimize unwanted vibrations and resonances. In our guide to Focal spider technology, you can learn more about the background of this innovative design.

Wie robust ist der Focal K2 POWER SUB25KXE im Alltagseinsatz?

The Focal K2 POWER SUB25KXE is designed for durability and resilience. This is evident, among other things, in the solid aluminum frame, which not only looks high-quality but also withstands mechanical stresses effortlessly. Additionally, Focal relies on a specially designed rubber profile surround that absorbs both mechanical vibrations and external influences. Especially if you often drive long distances and the subwoofer needs to perform over an extended period, you will benefit from this choice of materials. Whether in cold winter temperatures or hot summer days – the SUB25KXE remains stable and consistently delivers rich, deep bass. If you are looking for more tips on the care and maintenance of Focal bass speakers, feel free to check out our advice section, where we provide you with more practical tips.

Welche Funktion erfüllt die spezielle Gummiprofilsicke bei diesem Basslautsprecher?

The rubber surround is not just a simple seal, but a key element for the sound quality and durability of the K2 POWER SUB25KXE. The special profile keeps the diaphragm edge flexible enough to accurately reproduce large excursions and effectively dampen vibrations. This helps you maintain clean impulse fidelity during intense bass runs without distortion. Additionally, the surround contributes to protection against dust and moisture – especially in vehicle environments where temperature fluctuations and road dirt can play a role. The balanced combination of stiffness and flexibility makes this high-end car subwoofer versatile and ensures that you will enjoy deep and powerful bass frequencies for a long time. You can find more about material selection at Focal in our article on manufacturing techniques.

Passt der K2 POWER SUB25KXE in Fahrzeuge von BMW, Audi, Mercedes oder VW?

Basically, the Focal K2 POWER SUB25KXE is well compatible with many European car brands such as BMW, Audi, Mercedes, and VW due to its universal dimensions and flexible impedance of 4 + 4 Ω. However, whether it fits into your specific vehicle configuration depends on your trunk design, the existing enclosure installation opening, and the amplifier setup. Because although many modern vehicles offer enough space for a 25 cm (10") subwoofer, factors such as installation depth and enclosure volume play an important role. In particular, the 3 liters of volume that the sub itself occupies should be included in your planning. If you are unsure, take a look at our Focal installation guide, where we have collected tips and tricks specifically for different vehicle models.

Warum hat der SUB25KXE eine Impedanz von 4 + 4 Ω und was bedeutet das für Dich?

The nominal impedance of 4 + 4 Ω in the Focal K2 POWER SUB25KXE gives you a high degree of flexibility when connecting to different amplifier systems. You can connect the two voice coils in parallel to achieve a lower total impedance, or connect them in series to achieve a higher impedance. This allows you to use the subwoofer in both smaller single-sub setups and larger systems, for example, if you want to use multiple bass speakers. Especially with powerful amplifiers, it is important to adjust the resistance appropriately to achieve optimal performance. The SUB25KXE thus opens up various possibilities for optimizing your bass performance. If you would like to learn more about the nuances of impedance matching, we recommend our technical guide on Focal Car Audio setups.

Was kann ich von den 600 W RMS des Focal K2 POWER SUB25KXE erwarten?

With 600 W RMS, the K2 POWER SUB25KXE has a continuous power handling that offers real room for volume and sound quality. This means that the subwoofer can be continuously powered with 600 watts without hitting its limits or overheating. Especially if you prefer hip-hop, EDM, or other bass-intensive music genres, you will benefit from the impressive endurance of this bass speaker. It plays confidently and with low distortion, even when you really push it. The maximum power of 1,200 W also shows that the SUB25KXE can easily handle short-term peak loads. By fully utilizing its potential, you can create a powerful and clear bass foundation. You can find more details about the performance characteristics in our article on the Focal K2 series and its power handling.

Wie lässt sich der K2 POWER SUB25KXE optimal in ein bestehendes Soundsystem integrieren?

For a seamless integration of the Focal K2 POWER SUB25KXE into your existing car audio setup, you should consider a few factors. First, the choice of the right amplifier is crucial: make sure that the power reserves and impedance settings perfectly match the dual voice coils. Second, the enclosure volume is of great importance – although 20 l is specified as the Vas value, a tuned bass reflex or sealed enclosure is recommended to reproduce the strong bass accurately. Third, ensure that you choose the crossover frequency in such a way that the mids and highs are not neglected. Especially if you are a true music lover, a well-tuned system will ensure that you benefit from every frequency range. For further inspiration, we have compiled detailed tips in our article "Properly Measuring Focal Subwoofers" to assist you with fine-tuning.

Herstellerinformation/verantwortliche Person

Focal Naim Deutschland GmbH

Darius R. Świderski

Hainbuchenweg 14–18
21224 Rosengarten
Germany

Phone: +49 4105 77050
Fax: +49 4105 770529
E-mail: info@focal-naim.de

Let customers speak for us

from 9059 reviews

Jean François Tedesco

Alpine tube 12 bazooka , Un sacré caisson de basses ,

Un sacré caisson de basses , j'ai eu un 46 cm killer 454 de l'époque année 90 , qui tapait vraiment bien , mais ce tube est bien plus fort et plus ample, toutes les basses passent sans problème, avec une télécommande à réglage multiples taramps eq bass , et un ampli Machete de masori , le couple est parfait, personnellement j'en ai deux tubes et ça donne énormément, avec l'ampli 2 x 530 en 4 ohms . Parfois le plus simple est bien meilleur et plus durable .

SWT-12S4

11/29/2025

Bartosz Erber

X-10 v3 d2

Hallo. Sehr freundlicher Kundenservice und schnelle Auftragsabwicklung. Der Lautsprecher ist brandneu und unbenutzt. Ich habe ihn vor einiger Zeit gekauft, aber erst kürzlich das Gehäuse fertiggestellt. Die Parameter entsprechen den Herstellerangaben: 42,5 Liter Nettovolumen, abgestimmt auf 32 Hz und 21 mm starkes Sperrholz. Ich hatte noch nie einen 10-Zoll-Lautsprecher und wusste nicht, was mich erwartet, aber das Ergebnis hat meine kühnsten Erwartungen übertroffen. Der Bass aus einem so kleinen Lautsprecher in einem so kleinen Gehäuse ist einfach unglaublich. Um den X-10 zu kaufen, habe ich meinen DD 712f in einem 70-Liter-Gehäuse verkauft, und der war ein Volltreffer. Der Sundown ist in jeder Hinsicht besser. Ich kann diesen Lautsprecher und den Händler, bei dem ich ihn gekauft habe, wärmstens empfehlen. Beste Grüße.

X10 v3

11/18/2025

tatazz

Est arrivé à la maison très rapidement

Est arrivé à la maison très rapidement 👌🏽

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Anonym

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Geht echt gut und leicht zum einstellen

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Georges, Alexander, Vainohoarii NAGLE

Très satisfaisant.

Bonjour, je reçu le colis bien emballé.
Je recommande vivement, la livraison est gratuite et rapide, je recommanderai sûrement encore chez Masori.

RS-YS12

11/10/2025

SPYRIDON D.

Bought again

Bought again. Great price, fast delivery, nice !

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Perfect sound, I bough 2 pairs for the door and

Perfect sound, I bough 2 pairs for the door and the difference between these and the stock ones are huge

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Très bonne qualité
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Preis/Leistung Qualität top!

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Top Upgrade für Canton System

Ich habe den Woofer in meinem Skoda Octavia 3 mit Canton Soundsystem eingebaut.
Der Einbau war Plug & Play, alles passt perfekt ohne Anpassungen.
Im Vergleich zum originalen Canton Subwoofer spielt dieser deutlich stärker, präziser und mit mehr Druck.
Ich kann den Woofer jedem empfehlen, der mehr Bass aus dem Canton-System herausholen möchte – lohnt sich absolut!

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