Audison AV 12 D2 II subwoofer
subwoofer, Ø 12" (300 mm), 550 W RMS, 85 dB (2.83V/1m), 2 + 2 Ω
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More about the product
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Subwoofer Audison AV 12 D2 II
Audison AV 12 D2 II is a compact subwoofer from the VOCE II reference series, designed for installations with limited space where, despite small installation requirements, a full, fast and controlled bass performance is expected. The design is rated for a continuous power of 550 W RMS, while high mechanical robustness and thermal stability allow long-term loading without loss of dynamics or control.
At its core is a dual 2‑ohm voice coil with a diameter of 1.5" made from CCAW wire, combining low weight with high thermal resistance and precise response. The magnetic circuit was completely optimized using FEM simulations to maximally concentrate the magnetic flux in the voice‑coil gap, which positively affects efficiency, response speed and cone control. Stable operation at high SPL is ensured by the Airflow Venting Cooling system, which effectively dissipates heat from critical parts of the motor and eliminates thermal power limitations.
Mechanical integrity at large excursions is increased by the Radial Reinforcement Framework, i.e. internal radial reinforcements under the cone, while the extended dust cap with the VOCE II design was optimized by FEM simulations for higher stiffness and structural damping. The pressure‑cast aluminum basket with a magnet cover provides high rigidity, effective heat dissipation and stable airflow. A pair of integrated cable routing hooks, placed entirely within the subwoofer footprint, facilitates a clean installation even in very tight conditions. Connections are handled by robust spring horizontal terminals prepared for cables up to 8 AWG.
The AV 12 D2 II is optimized for small sealed enclosures with a volume of 12–14 l and delivers deep, clean and very fast bass with excellent control. The package includes a protective metal grille in black finish that protects the cone without negatively affecting the acoustics or the appearance of the installation. eID technology for product verification, traceability and direct access to Audison technical documentation is included as standard.
Main features
- Continuous power 550 W RMS for long‑term high loading without loss of control.
- Dual 2‑ohm voice coil for flexible low‑impedance system design.
- 1.5" voice coil made from CCAW wire with high thermal resistance and low weight.
- Airflow Venting Cooling system for efficient cooling and stable performance at high SPL.
- Optimized for sealed enclosures of 12–14 l volume.
- Radial Reinforcement Framework to increase mechanical stiffness at large excursions.
- Extended dust cap with FEM‑optimized stiffness and damping.
- Pressure‑cast aluminum basket with magnet cover for maximum stability and cooling.
- Pair of integrated cable routing hooks within the subwoofer footprint.
- Spring horizontal terminals ready for cables up to 8 AWG.
- Protective metal grille included in the package.
- eID technology for product verification and access to technical documentation.
About the brand
Audison is an Italian brand with a tradition since 1987. Its goal is to produce the best mobile electronics in the world and to continue its innovative approach. Sound reproduction has always been a fascinating field where emotions and technology come together. The best result is achieved when these two values are at their peak. Thanks to this combination, every project Audison develops — born from a natural attitude drawing on a love of music and an inner need — challenges existing standards. Since the introduction of the first HR 100 amplifier, Audison has created products that truly marked the history of car hi‑fi. Audison is unwaveringly devoted to research that leads to perfection in in‑vehicle sound reproduction. Audison is a pioneer of innovation and accepts nothing less than perfection in every product it brings to life. Innovation disrupts the standard process and requires a demanding approach that goes beyond common solutions adopted by others. This is where the essence of the Audison brand shows. Innovation shapes the entire design process, starting with conceiving car audio products that provide unique value and enhance the in‑car listening experience. Audison constantly pushes technological boundaries and files dozens of patents. Acoustic quality cannot accept compromises!| Catalog number | AV 12 D2 II |
| Brand | Audison |
| Subwoofer diameterThe diameter of the subwoofer is indicated on the screw holes. The overall outer diameter of the subwoofer is usually 1-2 cm wider, depending on the size category of the subwoofer. For a 30 cm subwoofer, the outer diameter incl. protective rubber 31.8 cm and in the 25 cm subwoofer it is 26.5 cm incl. protective rubbers. | 12\" (300 mm) |
| RMS powerThe RMS power of the subwoofer is the constant power of continuous use of the subwoofer. If the power is exceeded for a longer period of time, irreversible damage may occur, or to burn out the voice coil of the subwoofer. | 550 W |
| Max. (maximum performancePeak performance , which the subwoofer can play momentarily (approx. 0.5 s), for example when hitting drums in a song. If the maximum power is exceeded, damage can quickly occur, or to burn out the voice coil of the subwoofer. | 1 100 W |
| ImpedanceImpedance - measurement of electrical resistance. When buying a subwoofer, it is very important that everyone make sure that the impedance matches the amplifier that you are connecting to it. For subwoofers with a double voice coil, we recommend following the information in the advice center! Example: A 2 Ohm subwoofer cannot be connected to an amplifier that is only stable up to 4 Ohms. A 4 Ohm subwoofer can easily be used on an amplifier that is stable up to 2 Ohms. Connecting a 4 Ohm subwoofer to an amplifier that is stable up to 4 Ohms also without problems. The most common subwoofer impedance is 4 Ohm. | 2 × 2 Ω |
| Sensitivity (SPL 2.83V/1m)Subwoofer sensitivity or efficiency. The sensitivity of the subwoofer is given in decibels (dB) and, in simple terms, means that the higher the value, the lower the demands on the power of the amplifier. This is a de facto rating of how a subwoofer converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the subwoofer using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the subwoofer is louder with less power. For every 3 dB increase in sensitivity, the subwoofer requires half the power to reproduce the same volume. For example, if an 88 dB subwoofer needs 300 Watts to produce a certain volume, then a subwoofer with 91 dB sensitivity needs only 150 Watts to reach the same efficiency. | 85 dB |
| Frequency rangeThe ability of the subwoofer to play a signal from the lowest frequency to the highest, or the ability of a subwoofer to faithfully reproduce sound in a specific frequency band. Subwoofers ideally play from 20 - 150 Hz. Professionally: In the frequency range from 40 to 16,000 Hz, the vast majority of fundamental and overtones (harmonics) of all musical instruments are found. We are interested in the course of the radiated sound pressure in this range of frequencies when the loudspeaker system is supplied with constant power. We call this course the frequency characteristic, which tells us the level of radiated sound pressure in decibels (dB) depending on the frequency. The frequency characteristic of a speaker or speaker system can be expressed most succinctly with a graph. Mostly, however, the frequency characteristic is indicated by indicating the maximum tolerance of the sound pressure in the given frequency range, e.g. 50 to 15,000 Hz -+ 6 dB. Since the frequency characteristics of loudspeakers and systems in general are quite uneven, some manufacturers do not even indicate this maximum tolerance of sound pressure in decibels in their catalogs for tactical reasons. Data impoverished in this way is unfortunately worthless. What is valid is that the manufacturer offers a speaker system with a frequency range of 30 to 20,000 Hz, if he is worried about stating the maximum unevenness of the sound pressure in this range, because he can have a tolerance of, for example, +- 20 dB. The unevenness or undulation of the frequency curve in good speaker systems for high-quality music performance should not exceed +-3 dB in the 80 to 12,000 Hz band and +-6 dB in the 40 to 16,000 Hz band. Greater unevenness already depletes or emphasizes certain tonal areas, which can cause audible or even disturbing distortion. The proportion between fundamental tones and higher harmonics also changes, thereby changing the color of the sound, and individual musical instruments as well as the entire musical image sound unnatural. | 25 – 400 Hz |
| Fs - resonant frequencyFs - is the lower resonant frequency. This parameter is the de facto free air resonant frequency of the subwoofer. Simply put, it is the point at which the weight of the subwoofer's moving parts equals the force of the subwoofer's suspension while it is in motion. If you've ever seen a piece of string start to hum uncontrollably in the wind, you've seen the effect of reaching a resonant frequency. The weight of the moving parts and the stiffness of the suspension (surround and spider) are key elements that affect the resonant frequency. As a general rule, a lower Fs indicates a subwoofer that would be better at reproducing low frequencies than a subwoofer with a higher Fs. However, this is not always the case, as other important parameters of the subwoofer also enter the resulting sound. | 23 Hz |
| Subwoofer voice coil diameterThe larger the diameter of the voice coil, the more load capacity the subwoofer has, in layman's terms. | 1.5" (38.6 mm) |
| Subwoofer diaphragm materialThe specific material from which the subwoofer membrane is made. | Polypropylene |
| Basket material | Cast aluminum |
| Magnet type | Ferrite |
| Xmax + -Xmax - the maximum deflection of the subwoofer diaphragm in one direction – it is not a sum, or an abbreviation for the maximum linear deflection. The subwoofer output becomes non-linear as the voice coil begins to leave the magnetic gap. | 16.8 mm |
| Subwoofer mounting depthThe mounting depth of the subwoofer is measured from the bottom edge of the magnet to the bottom edge of the subwoofer's metal or cast basket. | 88 mm |
| Mounting hole | 284 mm |
| Recommended enclosure volumeThe closed enclosure is characterized by a simple construction. Closed enclosures are usually smaller than bass-reflex enclosures, and a special damping fleece is used for their damping. A closed baffle has the advantage of preventing an acoustic short between the front and back radiation of the subwoofer diaphragm. The disadvantage is that the closed enclosure raises the natural resonance frequency of the used subwoofer and thereby also increases the lower limit frequency. This is because the back side of the diaphragm is forced to compress and dilute the air inside the enclosure when the subwoofer is radiating in a closed enclosure. This adds to the inherent stiffness of the subwoofer's oscillation system the stiffness of the air in the closed enclosure. This causes an increase in the stiffness of the oscillating system and thus an increase in the resonant frequency of the entire system: subwoofer -> loudspeaker. The increase in resonant frequency for a given subwoofer is greater, the smaller the volume of air in the closed enclosure. The relatively small volume of air in the closed enclosure acts on the subwoofer as an acoustic spring when radiating the back side of the membrane into the enclosed enclosure. USE: Mainly for quality bass listening in the entire band with an emphasis on detail and accurate reproduction in the lower band. Pros and cons: + pure reproduction + small closets + easier tuning - low level of efficiency in deep bass - loudness only at the cost of enormous deflection of the membrane - a significant acoustic pressure cannot be expected | 21 – 30 l |
| Recommended bass reflex speaker volumeA bass reflex enclosure is designed in the same way as a closed enclosure, but it also has a so-called bass reflex mouthpiece, or "bass reflex" or slot. Needle foam is used to dampen bass reflex enclosures. USE: The ideal use is in cases where the listener wants to achieve a high volume and a good sound pressure level. It is the best compromise between sound quality and performance and is also the most commonly used Pros and cons: + good efficiency in deep bass + a small deflection of the membrane is enough for a large volume - reproduction less accurate than with closed enclosures | 27.1 – 37 l |
| Other | Yes, included in the package |
| MassSubwoofer weight in kilograms. The weight is usually given net, i.e. without packaging. | 6.6 Kg |
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