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Subwoofer in box Audison APBX 10 S4S

10", 400 W RMS, 4 Ω
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Subwoofer in box Audison APBX 10 S4S

Subwoofer in box Audison APBX 10 S4S

The Audison APBX 10 S4S is a 10" subwoofer housed in a closed box with a volume of 12 l. The APBX 10 S4S belongs to the most powerful subwoofers of the Prima series and its refined "Thiele & Small" parameter setting provides an ideal balance for all music genres.

The main features of the Audison APBX 10 S4S subwoofer

  • An extremely low profile box (142 mm) with a sealed construction that is perfectly tuned for the APS 10 D .
  • The 2S² design (2 sides / 2 sounds) provides the possibility to choose the position of the subwoofer.
  • The rounded corners allow for easy placement in the trunk, and the leveling feet with Velcro inserts ensure a secure fit on the carpet.
  • The SSP (Sub Smart Plug) terminal block is equipped with a Plug & Play connector for quick and safe disconnection of the box.
  • The specially designed geometry of the basket guarantees a long linear displacement (11 mm, unidirectional).
  • Diaphragm made of special water-repellent paper with a diameter of 8" with a profile developed using FEM (Finite Element Method) simulation.
  • The package includes a robust metal grille to protect the subwoofer.
Catalog numberAPBX 10 S4S
BrandAudison
LinksOfficial web presentation (English)
RMS powerThe RMS power of the subwoofer is constant power. This is also the performance of continuous use of the subwoofer. If you exceed the power for a longer period of time, irreversible damage or subwoofer voice coil burning! You can tell if the subwoofer is overloaded by the vibration of the subwoofer membrane. 400 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 subwoofer voice coil burning! 800W
The diameter of the subwoofer in the box250 mm
ImpedanceImpedance - measurement of electrical resistance. When buying a subwoofer, it is very important that everyone make sure that the impedance is compatible with 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 with 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. 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 with an amplifier that is stable up to 2 Ohms. The most common impedance of subwoofers is 1 x 4 Ohm.
4 Ω
Loudspeaker typeThe 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 diaphragm
- a significant acoustic pressure cannot be expected

The 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". 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
Closed box
What is the baffle made of?Subwoofer enclosures are usually made of 18-22 mm MDF board or pressed chipboard. Due to its higher strength, MDF board is a better material than ordinary chipboard. MDF
Dimensions of the boxEnclosure dimensions are given as height, width and depth, which is often longer at the bottom edge than at the top, due to the bevel of the rear wall. 472 x 334 x 120 mm
Box weight incl. subwoofer8.63 kg
Beveling of the back wallThe bevel of the back wall is a crucial parameter if you intend to place the subwoofer in the luggage compartment, instead of the back wall of the rear seat. This will save you a few centimeters of space in the trunk of your car. No

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