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RS Audio-A12-12" (30cm) Subwoofer-masori-kaufen

RS Audio A12

12" (30cm) subwoofer

  • 12" subwoofer, 310 mm diameter, 150 mm installation depth
  • Fs 25 Hz, SPL 87.10, RE 2.00 Ω, BL 11.07, precise construction
  • Closed housing 45L/35L, bass reflex 37L, versatile use
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The A12 from RS Audio is a 12" (30cm) subwoofer that impresses with its precise design and technical features. With a nominal diameter of 310 mm and an installation depth of 150 mm, it is very versatile. Its mounting hole is 280 mm and it can be used in different types of enclosures: closed (45 liters for deep bass or 35 liters for fast bass) or bass reflex enclosures (37 liters). The A12 impresses in particular with its acoustic specifications such as Fs of 25 Hz and an SPL of 87.10. In addition, physical properties such as an RE of 2.00 Ω and a BL value of 11.07 indicate its performance.

Features

  • Nominal diameter: 310 mm
  • Mounting hole: 280 mm
  • Installation depth: 150 mm
  • Closed housing:
  • 45 liters (deep) 35 liters (fast)
  • Bass reflex enclosure: 37 liters
  • (80 mm tube / 280 mm length)
  • Fs (Hz): 25,00
  • RE (Ω): 2.00
  • RmS (R): 7.94
  • Qms: 3,31
  • Qes: 0,43
  • Qts: 0,38
  • Cms (µM/Newton): 0.24
  • Mms (gram): 166,00
  • BL: 11,07
  • VAScB: 88.20
  • SPL: 87,10

Frequently asked questions about the A12

What are the dimensions of the RS Audio A12 subwoofer?

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Rob

The RS Audio A12 subwoofer has a nominal diameter of 310 mm and an installation depth of 150 mm. These dimensions allow flexible integration into various types of enclosures. The matching mounting hole has a diameter of 280 mm, which means that the A12 can be used in many different installation situations. These dimensions are particularly advantageous when designing subwoofer enclosures, as they offer installation options in both closed and bass-reflex enclosures in terms of the space required.

What are the acoustic specifications of the A12 subwoofer?

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Rob

The A12 subwoofer from RS Audio is equipped with a resonance frequency (Fs) of 25 Hz, which promises deep and rich bass. The sound pressure level (SPL) is 87.10 dB and is an indicator of the speaker's volume efficiency at a given power level. These acoustic characteristics make the subwoofer ideal for low-frequency audio applications where a combination of bass response and volume efficiency is required.

Which installation housings are suitable for the RS Audio A12?

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Rob

The A12 can be operated in both closed and bass reflex enclosures. A closed cabinet with a volume of 45 liters is ideal for deeper bass, while a 35-liter cabinet is recommended for faster bass. For the bass reflex design, a 37-liter enclosure volume with an 80 mm diameter and 280 mm long tube is recommended to achieve optimal bass performance. This flexibility allows adjustments to be made depending on the desired bass characteristics.

What is the significance of the Thiele-Small parameters for the A12?

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Rob

The Thiele-Small parameters of the A12 are essential for the cabinet design and acoustic performance. The value of Qts is 0.38, which indicates a good balance between drive force and cabinet matching. The resonance frequency Fs is 25 Hz, ideal for deep bass applications. Qms and Qes of 3.31 and 0.43 respectively show mechanical and electrical damping ratios. The Cms value of 0.24 µM/Newton and the Mms of 166 grams influence the cone movement and reaction, while the BL value of 11.07 reflects the magnetic force.

How do RE and BL influence the performance of the A12?

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Rob

The electrical resistance RE of the A12 is 2.00 ohms, which indicates that the subwoofer is designed for operation with low impedance amplifiers and allows potentially more powerful output power. The BL value of 11.07 indicates a high electromagnetic driving force of the subwoofer, resulting in a more dynamic bass response and better control of the speaker cone at high volumes. These parameters are critical for the sonic performance of the A12.

Are there any specific tips for installing the RS Audio A12?

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Rob

When installing the RS Audio A12, the specified dimensions must be observed. A precise mounting hole of 280 mm is required. Due to the installation depth of 150 mm, sufficient space must be available in the enclosure system. For optimum bass performance, the enclosure volume should be selected according to the recommended specifications of closed 45 or 35 liters as well as 37 liters bass reflex. The placement in the vehicle should be done carefully to minimize vibrations and achieve the best possible acoustics.

How is the RS Audio A12 integrated into the car acoustics?

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Rob

The integration of the RS Audio A12 into car acoustics requires precise dimensional accuracy. The subwoofer fits into various enclosure spaces and offers versatile roles depending on the enclosure type. Thanks to its 310 mm nominal diameter and 150 mm installation depth, it can be placed flexibly in the trunk or under seats. A closed or bass reflex enclosure optimizes the acoustic performance, depending on personal preferences for bass intensity and resonance. The precise design facilitates integration into existing audio landscapes in the vehicle.

What technical parameters characterize the A12?

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Rob

The A12 impresses with technical parameters such as the Qts value of 0.38, the excellent BL of 11.07, which ensures a strong driving force, and the Mms of 166 grams, which has an influence on responsiveness and membrane stability. With a resonant frequency. The Re of 2.00 Ohm shows the low electrical impedance. A maximum cabinet volume of 45 liters (closed) improves the bass resonance in the low range. These parameters help to match the loudspeaker to different listening requirements and cabinet configurations.

What influence does the SPL value have on the A12?

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Rob

The SPL value of the RS Audio A12, specified at 87.10 dB, provides information about the efficiency of the loudspeaker in converting electrical energy into sound pressure. This means that the A12 can produce an impressive sound pressure level even at lower power inputs. A higher SPL value supports louder output levels without additional power consumption, which is advantageous for operation in vehicles that have limited power capacity. This parameter is central to assessing the volume performance of the subwoofer.

Which parameters are decisive for the housing tuning of the A12?

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Rob

Many parameters are decisive for the cabinet tuning of the A12. The Qts value of 0.38 allows flexible adjustments between closed and bass reflex design. An Fs of 25 Hz is ideal for low bass applications. The volume of closed enclosures should vary between 35 and 45 liters, which is fast vs. deep bass. Bass reflex enclosure with 37 liters, which has a specific tube length of 280 mm, further supports the bass performance. Adhering to these specifications makes it possible to achieve a precisely tuned bass response.

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Frequently asked questions and answers

How long will it take until I receive my order?

The delivery time of each item is indicated on the product page near the price. For the sake of the environment, we send all items in an order together in one delivery. If items in an order have different delivery times, please use the longest delivery time as a guide. If individual items in your order are needed very urgently, write to our customer service at info@masori.de so that we can split your order.

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Can the order also be shipped internationally?

We ship worldwide. There is no place in the world to which we cannot deliver. Shipping is either by DHL or UPS for international shipments.

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What does shipping cost?

Shipping in Germany and the EU is free of charge for orders over €50, below this amount a shipping fee of €4.99 applies. In the rest of Europe: For a gross order value of €0.00-499.99: flat rate of €49.99 (incl. VAT) From a gross order value of €500.00: flat rate of €79.99 (incl. VAT).) Worldwide: For a gross order value of €0.00-299.99: flat rate of €79.99 (incl. VAT) For a gross order value of €300.00 or more: flat rate of €129.99 (incl. VAT)

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Do I have to pay taxes & customs for my order?

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I have seen an item cheaper, does Masori offer a lowest price guarantee?

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Which shipping methods are possible?

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How can I return my order?

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Your purchases at Masori are covered by the 3-year Masori warranty , i.e. we extend the manufacturer's warranty (usually 12 months) to a full 36 months at our expense - at no additional cost or effort for you. Click here for the detailed warranty conditions.

Manufacturer information/responsible person

RS Audio Vertriebsgesellschaft mbH
Roberto Scalabrino
Gartenfelder Str. 29-37
13599 Berlin
Berlin, Germany

Contact: info@rsaudio.de

I still have questions. How can I contact support?

Product-specific questions

Which subwoofer sounds the loudest?

If you are looking for a subwoofer that produces maximum sound pressure (plays the loudest), you need to consider sensitivity, enclosure type and available power. Opt for an enclosure subwoofer with high efficiency (sensitivity) housed in an enclosure with a bass reflex port or mentioned as the enclosure recommendation of single subwoofer drivers "bass reflex". Masori's support team will be happy to help you with your selection. Next, drive the subwoofer with an amplifier whose output power is in the recommended power range of your subwoofer (preferably in the upper third of this range) or slightly above with a factor of 1-1.5 above the RMS power of the subwoofer. This will give you the sound you want to hear. Using an amplifier with a "bass boost" control can also be helpful. Also consider a system with multiple subwoofers. They require more power, but play louder.

Which subwoofer sounds the deepest?

To experience the deepest bass possible, choose a large bass speaker designed for use in a closed cabinet or large bass reflex cabinet. These types of enclosures are the best choice for reproducing a frequency response down to the deepest bass range. Sufficient wattage is also a must if you want to hear the deepest bass tones. A woofer with a very low frequency response can help to produce extremely low tones. Also, larger woofers can often play deeper than smaller woofers due to their size and excursion capability. Look for a high XMAX here, which indicates the excursion of the cone in millimeters. The deeper a subwoofer plays, the more excursion it needs, as the low frequencies require a lot of energy. The most commonly chosen subwoofer size is 12 inches (30 cm), which indicates the diameter of the cone. The larger the size, the more space you need in the trunk for the enclosure and the more power the connected amplifier requires.

Can I connect an amplifier and subwoofer to my factory system without replacing the front speakers or the radio?

Yes, there are several ways to connect an amplifier and a subwoofer to a factory system. In this case, you will need to tap into your car's speaker wires to access the so-called high-level signal from the stereo system. You can then use a high-level adapter to reduce the signal strength and pass the signal on to the amplifier; some amplifiers also have this built in directly.

How much amplifier power do I need to operate a subwoofer in my car?

The correct answer to this question depends on which subwoofer you choose. In the technical data of each subwoofer you will find a recommended power range (in continuous or RMS watts). As a general rule: more power is better, because bass is very power-hungry. To ensure that your subwoofer really delivers, we recommend that you choose an amplifier that is in the upper third of the maximum RMS output of your woofer. As a rule of thumb, you can assume that an amplifier should offer 1 to 1.5 times the RMS power that a subwoofer is specified with in the RMS specification. The RMS power of your amplifier can even exceed the maximum RMS power of the woofer, provided you pay attention to the sound quality - if the bass starts to distort or "break up", you have reached the power limit of your amplifier/speaker combination. If you turn down the volume control a little, your woofer will be safe; clean, loud sound will not damage your speaker. This RMS power of the amplifier is only available when the volume control of your radio is turned up and the gain control of your amplifier is set correctly.

If I put my subwoofer box in the trunk, can I hear the bass?

Absolutely. The only situation in which you would not be able to hear the bass from a speaker installed in the trunk is if your trunk is sealed and soundproofed. Normally, the bass will easily penetrate through the material separating the trunk from the passenger compartment. If you think you can't hear bass because your seat back and the parcel shelf material are blocking the sound waves, you can solve the problem by removing the parcel shelf, opening the ski bag hatch, and removing any speakers in the parcel shelf so that the sound from the trunk has a clear path into the passenger compartment.

What type of speaker should I use - with bassrelfex or closed?

The sealed box and the effects on the bass sound: Tighter, more precise bass. Smaller speaker size Requires more power for louder bass A sealed box is an airtight enclosure for your subwoofer. A sealed box is best for any music that requires tight, precise bass. Expect even sound reproduction (not too boomy), deep bass response and excellent power handling. Since a closed cabinet usually requires more power than an open cabinet, you should use an amplifier with sufficient wattage for optimal performance. Sound characteristics of a bass reflex speaker: Bass is louder and boomier, less precise Larger speaker size More efficient, doesn't require as much power Bass reflex speakers use an opening (called a port) to boost the low bass response. This gives you more power for a given amplifier output than a sealed box. Some people prefer the sound of bass reflex speakers for techno, hip hop, rock, heavy metal or other hard music. Bass reflex speakers can deliver stronger bass than closed speakers, but they have to be much bigger than closed cabinets. A booming bass has more punch and reverberation in each of its beats. The cone has greater freedom of movement. The port redirects the sound from the back of the cone and adds it to the sound coming from the front, making the bass louder. This higher efficiency means you can use a smaller amplifier than a comparable closed cabinet to play at the same volume. Another long-term benefit of an enclosure with openings is that the subwoofer stays cooler due to the airflow and therefore often lives longer than in a closed box.

What is a subwoofer with a dual voice coil?

A dual voice coil subwoofer has two separate voice coils (each with its own connections) and therefore offers more flexibility when wiring the system than a standard subwoofer. The DVC subwoofer can be wired in two different configurations: Parallel or in series. This allows you to wire the subwoofer according to your system design and preferences. The dual voice coils are specified with a resistance (the so-called impedance). A typical value is, for example, D1, D2 or D4. D stands for dual voice coil and the number for the impedance of each voice coil. D1 therefore has two voice coils and connections with 1 Ohm each, D2 with 2 Ohm each and D4 with twice 4 Ohm. Connected in parallel, the impedance is halved. Example: 2 ohms divided by 2 is 1 ohm connection impedance on the amplifier. In series, the impedance doubles to 2 + 2 Ohm = 4 Ohm connection impedance on the amplifier. The lowest possible impedance is recommended, as this is where the amplifier outputs the most power. Make sure that the amplifier supports the low impedance.

Should I use a single subwoofer or a cabinet subwoofer?

For the maximum possible performance and individuality in the box measurements, you should use a single subwoofer. A single subwoofer is just the driver itself - it must be built into a calculated subwoofer box to work properly. You will also need to power the subwoofer via an external amplifier. Individual subwoofers usually range in size from 8" to 15". There are models that can operate at low or high power, and function in a variety of different box types and sizes. There is the widest selection of drivers, perfectly matched to your individual needs, as well as different impedance and voice coil configurations, so you can choose the models that best suit your system. If you're starting from scratch when planning your individual system, choosing a subwoofer is a good place to start. We will be happy to advise you on what suits your needs. By the way: We can also build and calculate a subwoofer enclosure according to your dimensions and requirements. If you want more bass in your car quickly, easily and simply, take a look at our subwoofer enclosures. Subwoofer enclosures are supplied ready-built in a box that has been specially developed for the subwoofer. This means you don't have to build an enclosure for the subwoofer and don't have to put as much work into planning and building your system. All you need is an external amplifier to power the subwoofer. We will be happy to advise you on which amplifier is the right one. The special form of cabinet subwoofers: The active subwoofer box. An active subwoofer combines an amplifier and a woofer in one enclosure. As the amplifier is already integrated in the cabinet, you don't need much space. Many active subwoofers are compact and don't take up much space in your vehicle. Although powered subwoofers can be very effective bass producers, their smaller drivers and amplifiers may not provide all the sound power you want if you're looking for really powerful bass. On the other hand, their relative ease of installation and small size make them a great addition to the factory stereo system. You'll also find vehicle-specific subwoofers, either with or without a power connection. These subwoofers are designed to fit unobtrusively in many cars and are often color-matched to the vehicle's interior. Like the active subwoofers just mentioned, they may not be the best choice if you are looking for really big bass, but for most listening needs they are more than adequate without taking up much space in the interior.

Should I use a single-channel or multi-channel amplifier to drive my subwoofers?

Since mono amplifiers are usually Class D amplifiers, which usually support low impedances down to 1 ohm, they are a good choice for driving subwoofers - Class D amplifiers have a high power-to-heat ratio and excellent efficiency, which is exactly what you need when dealing with power-hungry low-frequency signals. In addition, a 1-channel amplifier offers the security of knowing that you are guaranteed to deliver the same signals to your subwoofers when operating several subwoofers connected in parallel or in series. Multi-channel amplifiers usually have individual volume settings per channel, making it difficult to set the same volume for all subwoofers.

What are the advantages of connecting 2 subwoofers to a mono amplifier? How would I wire them?

The advantages of connecting two subwoofers to a mono amplifier are the same as any other number of subwoofers to a mono amplifier: you can drive the subwoofers with more power at lower impedances. Because low frequencies are less directional (i.e. it's harder for your ears to tell where low frequencies are coming from than high frequencies), bass is often transmitted in mono. Mono here refers to a single channel (as opposed to stereo or two channels), not a speaker. Most mono amplifiers have two sets of speaker terminals to make installation easier: If you connect two subwoofers to the amplifier and use a thick cable, you can attach the wires there without having to cut them. In reality, however, these terminals are connected together in the amplifier - both positive terminals are connected to the same point in the amplifier, as are both negative terminals. If you are using more than two subwoofers, you will need to connect them in parallel or in series (or a combination of both) to get as close as possible to the minimum impedance of the amplifier (see our subwoofer wiring diagrams for more information).

What does it mean to "bypass" an amplifier?

When bridging, two channels of an amplifier are combined into one channel in order to obtain more power. For example, a 2-channel amplifier that delivers 75 watts RMS per channel into 4 ohms can deliver up to 200 watts RMS into 4 ohms in one channel when bridged, which can be great for driving a subwoofer. There are no formulas to determine how much power you'll gain when you bridge the channels of an amplifier - every amplifier is different. Most 2- and 4-channel amplifiers can be bridged, so they can be used in a variety of situations and systems. For example, you can use a 4-channel amplifier to drive your left and right speakers with two channels and a subwoofer with the other two channels bridged together.

Are there problems with bridging an amplifier?

One disadvantage of bridging amplifiers is that you must be careful not to connect a load with too low an impedance, otherwise you could damage the amplifier. Amplifiers that work with loads up to 2 ohms per channel can usually only safely drive loads up to 4 ohms when bridged. The danger of operating an amplifier with too low an impedance is that the amplifier will overheat and burn out. Before connecting a bridged amplifier to a subwoofer or a speaker system with low impedance, you should always check the minimum impedance specifications.

Can I bridge my mono amplifier?

No, you cannot bridge a mono amplifier because there is nothing to "bridge". Bypassing means combining two amplifier channels into one to get more power. If you only have one channel, there is nothing you can combine it with.

What do I need to know about impedance when connecting subwoofers to an amplifier?

Impedance is the resistance that the speakers offer to the current flowing from the amplifier. Every time you halve the impedance of the speakers, e.g. when you change from a 2-ohm to a 1-ohm subwoofer, you have to get the amplifier to double its power. Some amplifiers can handle this lower impedance, some cannot. So the most important thing you need to know about impedance is that the impedance of your subwoofer matches the power rating of your amplifier. For example, if the power rating of an amplifier is specified at 1 ohm, you can also connect a 1 ohm subwoofer here. Look at suitable amplifiers in your price range. Once you have found the right amplifier, look for subwoofers that match your amplifier in terms of power and impedance. Most subwoofers have an impedance of 4 ohms, but 2-ohm, 1-ohm and dual voice coil subwoofers are now commonplace, so it's easy to find subwoofers that get the best out of your chosen amplifier.

Which crossover frequency point should I choose for my car subwoofer?

When we design systems at Masori, we usually start with a low-pass crossover around 60 Hz. Through trial and error, we've found that higher crossover frequencies tend to emphasize the source of the bass rather than the overall musical experience. In other words, you realize that the bass is coming from a box in the trunk. A crossover between 30 and 50 Hz will focus the output of your subwoofer amplifier on the lowest notes of your music (the ones you feel) and help the bass you hear appear to be coming from the front of the car along with the rest of the stereo image. Your own preferences are also important. If you prefer a hard-hitting kick bass or if your front speakers or subwoofers are small, a crossover frequency of 60 or even 100 Hz is appropriate.

Manufacturer information/responsible person

RS Audio Vertriebsgesellschaft mbH
Roberto Scalabrino
Gartenfelder Str. 29-37
13599 Berlin
Berlin, Germany

Contact: info@rsaudio.de

Der RS Audio A12 online kaufen – Präzision und Leistung vereint

Der RS Audio A12 überzeugt durch seine technischen Spezifikationen und vielseitigen Einsatzmöglichkeiten. Mit einem Nenndurchmesser von 310 mm, einer Einbautiefe von 150 mm und einer Montagebohrung von 280 mm ist er ideal für verschiedene Installationen geeignet. Dieser 12 Subwoofer kann sowohl in einem geschlossenen Gehäuse als auch in einem Bassreflexgehäuse genutzt werden. Die Gehäusevolumen sind optimal abgestimmt: 45 Liter für tiefere Basswiedergabe oder 35 Liter für schnellen Bass im geschlossenen Gehäuse, sowie 37 Liter für das Bassreflexgehäuse. Die Masori Tiefstpreis-Garantie sichert dir den besten Preis beim Kauf.

Acoustic precision due to low resonance frequency of 25 Hz

Mit einer Resonanzfrequenz von 25 Hz ist der A12 von RS Audio hervorragend geeignet, um tiefe Frequenzen mit Klarheit und Präzision wiederzugeben. Ein niedrigeres Fs sorgt dafür, dass der Subwoofer in der Lage ist, tiefe Basstöne mit geringer Verzerrung besonders sauber zu übertragen. Während andere Modelle oft höhere Fs-Werte haben, die zu einer weniger präzisen Bassreproduktion führen können, besticht der A12 hier durch seine Fähigkeit, Audioinhalte eindrucksvoll darzustellen.

Optimum performance with a Re of 2.00 Ohm

Der Gleichstromwiderstand von 2,00 Ohm des RS Audio Subwoofers ermöglicht eine bessere Anpassung der elektrischen Komponenten, wodurch er sowohl mit Verstärkern als auch anderen Audiosystemen optimal harmoniert. Dieser Widerstandswert ist typisch für leistungsstarke Carhifi-Anlagen und ermöglicht eine effiziente Energieübertragung, was im Vergleich zu höheren Widerstandswerten eine erhöhte Ausgangsleistung bei gleichem Energieaufwand bedeutet.

Efficient performance thanks to a BL value of 11.07

Der Kraftfaktor BL von 11,07 sorgt beim RS Audio A12 für eine ideale Balance zwischen Beweglichkeit und Kontrolle des Lautsprecherkonus. Ein höherer BL-Wert deutet auf eine starke Antriebskraft hin, was die Wiedergabetreue bei niedrigen Frequenzen steigert. Subwoofer mit schwächerem BL-Wert könnten bei hohen Lautstärken zu Verzerrungen neigen, der A12 hingegen liefert auch bei intensiver Nutzung kristallklare Bässe.

Impressive sound pressure level of 87.10 dB for high efficiency

Mit einem soliden Schalldruckpegel von 87,10 dB ist der RS Audio A12 in der Lage, selbst bei geringer Leistung einen beeindruckenden Klangteppich zu erzeugen. Dieser hohe SPL-Wert bietet insbesondere in Fahrzeugen mit geringem Platz für zusätzliche Verstärkerkomponenten einen Vorteil. Subwoofer mit niedrigeren SPL-Werten würden mehr Leistung benötigen, um vergleichbare Lautstärken zu erzielen.

Precise tuning using Thiele-Small parameters

Die Thiele-Small-Parameter sind entscheidend für die Einschätzung der Leistungsfähigkeit eines Subwoofers. Der A12 von RS Audio punktet mit einem Qms von 3,31, einem Qes von 0,43 und einem Qts von 0,38, was eine effiziente Certance zwischen mechanischer und elektrischer Dämpfung suggeriert. Diese Parameter optimieren die funktionalen Eigenschaften und ermöglichen individuell abgestimmte Audio-Performance je nach Anforderung und Umgebung.

Mass inertia with a moving mass of 166 grams

Die bewegte Masse, hier mit 166 Gramm angegeben, bestimmt die Fähigkeit des Subwoofers, sich zu bewegen und dabei die Energie des Audiosignals in akustische Energie umzuwandeln. Dieser Wert ist ein ausgezeichneter Kompromiss zwischen Schnelligkeit und Tiefton-Sattheit. Subwoofer mit höherer Mms könnten die Klangpräzision bei schnellen Beats mindern, weshalb der A12 durch seine optimale Auslegung überzeugt.

Compliance of the suspension with a Cms of 0.24 µM/Newton

Die Nachgiebigkeit der Aufhängung, welche beim RS Audio A12 mit einem Cms von 0,24 µM/Newton bemessen ist, beeinflusst die Fähigkeit des Subwooferkonus sich zu bewegen, ohne Klangverzerrungen zu erzeugen. Dieser Wert zeigt die Flexibilität der Membran auf, was in Verbindung mit der gesamten Bauweise für die sattesten Bassfrequenzen bei gleichzeitig maximaler Klarheit sorgt. An dieser Stelle sei auch auf den Einbau vor Ort in Frankfurt (Oder), den Expertensupport FAQ & Hilfe, sowie den informativen Audio Blog von masori.de hingewiesen, die Dir zusätzlichen Service und Unterstützung bieten können. Das technische Meisterwerk RS Audio A12 ist ein unentbehrliches Element für jedes anspruchsvolle Fahrzeug-Audiosystem.