speaker system

Abstract

A speaker arrangement includes: a mid-range speaker (20) arranged in a dashboard of a vehicle (10); a first tweeter (22) arranged adjacent to the mid-range speaker (20) in the dashboard of the vehicle (10); and a second tweeter (24) arranged adjacent to the mid-range speaker (20) in the dashboard of the vehicle (10). The mid-range speaker (20) is arranged between the first tweeter (22) and the second tweeter (24). The mid-range speaker (20) is a non-directional speaker that radiates sound equally toward a driver's seat (102) and toward a passenger seat (104). The first tweeter (22) is a directional speaker that radiates sound primarily toward the passenger seat (104), and the second tweeter (24) is a directional speaker that radiates sound primarily toward the driver's seat (102).

Description

Technical Field

[0001] The present disclosure relates to a speaker arrangement, and more particularly to a speaker arrangement or speaker layout in a vehicle. Background Art

[0002] Today's vehicles have sound systems that include multiple speakers, where the different speakers typically cover the entire audible frequency range if appropriate sound system tuning is applied. The speakers are arranged at various locations within the vehicle. The positioning of the individual speakers (of different types, such as woofers, midrange speakers, and tweeters) is typically based on the physical properties of sound radiated in the listening space (e.g., the vehicle cabin) and human perception of sound. The goal of the speaker arrangement is typically to provide a satisfactory listening experience not only for the vehicle driver, but also for any other vehicle passengers. Summary of the Invention

[0003] A speaker arrangement includes a mid-range speaker arranged in a vehicle's dashboard; a first tweeter arranged adjacent to the mid-range speaker in the vehicle's dashboard; and a second tweeter arranged adjacent to the mid-range speaker in the vehicle's dashboard. The mid-range speaker is arranged between the first tweeter and the second tweeter. The mid-range speaker is a non-directional speaker that radiates sound equally toward a driver's seat and toward a passenger seat. The first tweeter is a directional speaker that radiates sound primarily toward the passenger seat, and the second tweeter is a directional speaker that radiates sound primarily toward the driver's seat.

[0004] Other systems, methods, features and advantages will be or will become apparent to those skilled in the art upon examination of the following detailed description and accompanying drawings. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0005] The arrangement may be better understood with reference to the following description and accompanying drawings. The components in the accompanying drawings are not necessarily drawn to scale, but emphasis is placed on illustrating the principles of the invention. In addition, in the accompanying drawings, the same reference numerals designate corresponding parts throughout the different views.

[0006] Figure 1 An exemplary loudspeaker arrangement is schematically shown.

[0007] Figure 2 Another exemplary loudspeaker arrangement is schematically shown.

[0008] Figure 3 Another exemplary loudspeaker arrangement is schematically shown.

[0009] Figure 4 An exemplary loudspeaker arrangement is schematically shown in more detail.

[0010] Figure 5 Another exemplary loudspeaker arrangement is schematically shown.

[0011] Figure 6 Another exemplary loudspeaker arrangement is schematically shown. DETAILED DESCRIPTION

[0012] refer to Figure 1 , schematically illustrates a speaker arrangement in a vehicle 10. The figure shows a top view of the vehicle 10. The vehicle 10 includes a driver's seat 102 and a passenger seat 104. The speaker arrangement is arranged in the dashboard of the vehicle 10. That is, when the speaker arrangement radiates sound, the general direction of the sound is from the front of the vehicle 10 toward the rear of the vehicle 10. However, the speaker arrangement described in this disclosure is configured to primarily reproduce sound so that it is perceived by the driver and another passenger seated in the front seat next to the driver, rather than by passengers seated in the rear seats.

[0013] The speaker arrangement includes a midrange speaker 20 that is configured to radiate sound at frequencies between, for example, 250 Hz and 2000 Hz. For example, depending on the capabilities of other speakers included in the same speaker arrangement (such as tweeters, for example), some midrange speakers may even radiate sound at frequencies between 250 Hz and 3000 Hz. Any other suitable frequency range is generally possible, depending on the specific application and system. The speaker arrangement also includes a first tweeter 22 (high-frequency speaker) and a second tweeter 24 (high-frequency speaker). Each of the first tweeter 22 and the second tweeter 24 is configured to radiate sound at frequencies between, for example, 2 kHz and 20 kHz, which are higher frequencies than those radiated by the midrange speaker 20. The tweeters 22, 24 may even radiate frequencies above 20 kHz. Arrangements that include tweeters that radiate frequencies above 20 kHz are often referred to as high-resolution audio systems. The midrange speaker 20 is arranged between the first tweeter 22 and the second tweeter 24. That is, the first tweeter 22 is arranged on a first side of the midrange speaker 20 (e.g., the right side as seen from the passenger cabin), and the second tweeter 24 is arranged on a second side of the midrange speaker 20 opposite to the first side (e.g., the left side as seen from the passenger cabin).

[0014] The mid-range loudspeaker 20 is a non-directional loudspeaker or a loudspeaker with controlled dispersion. Controlled dispersion can be achieved in any suitable way, for example by using an acoustic lens, or by providing a number of mid-range or full-range loudspeakers in an array configuration (for example, providing a number of mid-range or full-range loudspeakers arranged in a linear array). Another possibility for controlling the directionality of the sound energy emitted by the loudspeaker arrangement is to perform digital signal processing (DSP) by controlling filters, equalizers and delays. For example, digital signal processing can be achieved by using finite impulse response (FIR) filters. That is, the mid-range loudspeaker 20 is arranged in a directionally controlled manner by the mid-range loudspeaker 20. Figure 1 The midrange speaker 20 radiates sound over a wide area, as indicated by the broad arrow in FIG. Thus, the midrange speaker 20 radiates sound substantially equally toward both the driver's seat 102 and the passenger seat 104. If the potentially asymmetric geometry of the instrument panel does not significantly affect the sound distribution, the midrange speaker 20 can be considered to radiate sound substantially equally toward both the driver's seat 102 and the passenger seat 104. The midrange speaker 20 does not radiate sound in any particular preferred direction, but rather radiates sound substantially uniformly throughout the entire passenger compartment of the vehicle 10.

[0015] On the other hand, the first tweeter 22 and the second tweeter 24 are directional speakers or speaker assemblies or devices that form a directional speaker (for example, a plurality of dome tweeters or other electrodynamic transducers together can form a directional speaker). The first tweeter 22 and the second tweeter 24 can have inherent directionality, for example, the first tweeter 22 and the second tweeter 24 can each be an electrodynamic planar loudspeaker (EDPL). For example, the inherent directionality (the ability to focus the sound field radiated by the speaker) can be caused by the larger physical range of the vibrating speaker diaphragm relative to the short wavelength of the high frequency sound waves. The first tweeter 22 radiates sound primarily toward the passenger seat 104, while the second tweeter 24 radiates sound primarily toward the driver's seat 102. That is, the main radiation lobe of the first tweeter 22 is directed toward the passenger seat 104, while the main radiation lobe of the second tweeter 24 is directed toward the driver's seat 102, which is Figure 1 Indicated by thin arrows.

[0016] The midrange speaker 20 is centrally arranged in or on the dashboard of the vehicle 10. That is, the distance between the midrange speaker 20 and the driver's seat 102 is substantially equal to the distance between the midrange speaker 20 and the passenger seat 104. Figure 1In the example shown, the first tweeter 22 that radiates sound mainly toward the passenger seat 104 is arranged closer to the passenger seat 104 than to the driver seat 102, and the second tweeter 24 that radiates sound mainly toward the driver seat 102 is arranged closer to the driver seat 102 than to the passenger seat 104. That is, the main radiation lobes of the first tweeter 22 and the second tweeter 24 are located at Figure 1 do not intersect in the example. However, even if the main radiation lobes of the first tweeter 22 and the second tweeter 24 do not intersect, in real-life applications, a certain amount of sound energy leakage will occur, so that a certain amount of interference will be generated to some extent. However, this is only an example. It is also possible that the first tweeter 22 that mainly radiates sound toward the passenger seat 104 is arranged to be closer to the driver's seat 102 than to the passenger seat 104 (for example, arranged to the left of the mid-range speaker 20 as seen from the passenger cabin), and the second tweeter 24 that mainly radiates sound toward the driver's seat 102 is arranged to be closer to the passenger seat 104 than to the driver's seat 102 (for example, arranged to the right of the mid-range speaker 20 as seen from the passenger cabin). That is, it is also possible that the main radiation lobes of the first tweeter 22 and the second tweeter 24 intersect in front of the mid-range speaker 20, as shown in FIG. Figure 6 As shown in the example.

[0017] The first tweeter 22 is arranged adjacent to the mid-range speaker 20. Adjacent in this context means that the first tweeter 22 is arranged at a distance d22 of no more than 10 cm from the mid-range speaker 20, or at a distance d22 of no more than 5 cm. According to one example, the distance d22 is between about 110 mm and 160 mm, wherein the distance d22 refers to the distance between the center of the mid-range speaker 20 and the center of the first tweeter 22. The second tweeter 24 is also arranged adjacent to the mid-range speaker 20. That is, the second tweeter 24 is arranged at a distance d24 (the distance between the center of the mid-range speaker 20 and the center of the second tweeter 24) of no more than 10 cm from the mid-range speaker 20, or at a distance d24 of no more than 5 cm. According to one example, the distance d24 is between about 110 mm and 160 mm. In this way, a compact central arrangement is provided in the front part of the passenger compartment. By providing the described center speaker arrangement in vehicle 10, acoustic radiation within vehicle 10 can be controlled, resulting in sound (e.g., music, speech, or other audible signals) being received at a listener's position within vehicle 10 with less interference from reflections from the acoustic environment in the front portion of vehicle 10 (the dashboard area). Compared to conventional speaker arrangements, the sound signals reproduced by the speaker arrangement are less disturbed by the surrounding environment (reflections from the acoustic environment in the front portion of vehicle 10 (the dashboard area)) when they reach the listener's position. The sound reproduced by midrange speaker 20 is widely distributed throughout vehicle 10 and reflected from multiple surfaces. First-order reflections caused by the side windows of vehicle 10 can be reduced by using midrange speaker 20 in conjunction with an acoustic lens assembly, or by implementing array processing, for example, when midrange speaker 20 comprises a compact speaker array. A compact speaker array refers to an arrangement of two or more speakers that cover a common frequency range, thereby collectively controlling sound dispersion through passive or active control (e.g., through FIR filtering or delay-and-sum processing). On the other hand, the sound reproduced by the first tweeter 22 and the second tweeter 24 is focused directly toward the driver's seat 102 and the passenger seat 104, respectively. Therefore, when the sound from the first tweeter 22 and the second tweeter 24 reaches the corresponding positions, it is significantly less disturbed by any reflections. This improves the listening experience for at least the driver and the passenger seated in the passenger seat 104 of the vehicle 10.

[0018] The midrange speaker 20 can be any type of non-directional speaker. However, the radiated sound may be primarily directed toward the driver's seat 102 and the passenger seat 104—that is, toward the front passengers rather than the rear passengers. On the other hand, the first tweeter 22 and the second tweeter 24 are directional speakers or speaker assemblies or devices that form directional speakers. According to one example, the first tweeter 22 and the second tweeter 24 each include at least one inherent beamforming speaker, such as a planar electrodynamic speaker. The sound radiation from the first tweeter 22 and the second tweeter 24 can be controlled to focus the main radiation lobe to a desired location. Various techniques are known for generating directional sound. Generally, the directionality of sound radiated from a speaker is related to the size of the sound source compared to the wavelength of the radiated sound waves. The larger the sound source is compared to the wavelength of the radiated sound waves, the more directional the resulting sound beam. While large speakers are naturally more directional due to their larger size, an equivalently directional sound source can be utilized by providing an array of conventional small speakers that are all driven in phase, or actively together, using digital signal processing. For example, another possibility is to provide an acoustic lens in front of the speaker in order to focus the radiated sound to a desired location. According to another example, each of the first tweeter 22 and the second tweeter 24 may comprise a so-called Acoustic Lens Technology (ALT) speaker. Such an ALT speaker includes a device (acoustic lens) for controlling the directionality of the sound radiated by the speaker. For example, an ALT speaker may include a dome tweeter or midrange speaker in combination with an acoustic scatterer that is attached to the dome tweeter or midrange speaker (on top of or in front of the speaker). The acoustic lens can be used to redistribute the sound energy in a very well-defined distribution pattern, with negligible signal distortion and independent of the frequency of the sound signal within the frequency range of interest.

[0019] Now refer to Figure 2The speaker arrangement may further include a third tweeter 26 on a first side (e.g., the right side as viewed from the passenger compartment) of the midrange speaker 20 and a fourth tweeter 28 on a second side (e.g., the left side as viewed from the passenger compartment) of the midrange speaker 20. The third tweeter 26 and the fourth tweeter 28 may each be arranged remote from the midrange speaker 20. That is, the third tweeter 26 may be arranged on the first side of the midrange speaker 20 at a distance d26 of at least 50 cm (e.g., d26 = 64 cm) from the midrange speaker 20, and the fourth tweeter 28 may be arranged on the second side of the midrange speaker 20 at a distance d28 of at least 50 cm (e.g., d26 = 64 cm) from the midrange speaker 20. Distances d26 and d28 also refer to the distances between the center of the midrange speaker 20 and the center of the third tweeter 26 or the fourth tweeter 28. According to one example, third tweeter 26 is arranged on a first side of midrange speaker 20 near the farthest edge of the instrument panel, and fourth tweeter 28 is arranged on a second side of midrange speaker 20 near the farthest edge of the instrument panel, wherein third tweeter 26 is arranged at an end of the instrument panel opposite to fourth tweeter 28. Third tweeter 26 may be a directional speaker or a speaker assembly or device that forms a directional speaker that radiates sound primarily toward passenger seat 104, and fourth tweeter 28 may be a directional speaker or a speaker assembly or device that forms a directional speaker that radiates sound primarily toward driver seat 102.

[0020] exist Figure 2 In the example shown, the third tweeter 26 that radiates sound mainly toward the passenger seat 104 is arranged closer to the passenger seat 104 than to the driver seat 102, and the fourth tweeter 28 that radiates sound mainly toward the driver seat 102 is arranged closer to the driver seat 102 than to the passenger seat 104. That is, the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 are located in the center of the radiator. Figure 2 do not intersect in the example of . However, this is only an example. It is also possible that the third tweeter 26 that radiates sound mainly toward the passenger seat 104 is arranged closer to the driver seat 102 than to the passenger seat 104 (for example, arranged to the left of the mid-range speaker 20 and the left end of the instrument panel as seen from the passenger cabin), and the fourth tweeter 28 that radiates sound mainly toward the driver seat 102 is arranged closer to the passenger seat 104 than to the driver seat 102 (for example, arranged to the right of the mid-range speaker 20 and the right end of the instrument panel as seen from the passenger cabin). That is, it is also possible that the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 intersect in front of the mid-range speaker 20, as shown in FIG. Figure 6According to a further example, it is also possible that the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 radiate sound towards positions different from the driver seat 102 and the passenger seat 104. Figure 5 This is shown as an example in an arrangement of FIG. In this example, the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 are both directed toward a location between the driver's seat 102 and the passenger seat 104, for example, toward the shift knob, the center console, the center of the passenger compartment, or any other location between the driver's seat 102 and the passenger seat 104. In this way, the width of the sound field can be increased. The exact location to which the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 are directed may depend on the desired sound tuning strategy for a particular arrangement and may vary from case to case.

[0021] exist Figure 2 In the illustrated example, third tweeter 26 and fourth tweeter 28 are mounted in or on the dashboard of vehicle 10. However, this is merely an example. Generally, while midrange speaker 20, first tweeter 22, and second tweeter 24 are centrally located in or on the dashboard, third tweeter 26 may be located anywhere on the first side (or the second side as viewed from the passenger compartment) of midrange speaker 20 and away from midrange speaker 20, and fourth tweeter 28 may be located anywhere on the second side (or the first side as viewed from the passenger compartment) of midrange speaker 20 and away from midrange speaker 20.

[0022] Another exemplary speaker arrangement is Figure 3 In this example, the third tweeter 26 and the fourth tweeter 28 are mounted to the A-pillar of the vehicle 10. Figure 2 Everything discussed above with respect to the third tweeter 26 and the fourth tweeter 28 in the example of FIG. 1 also applies to Figure 3 The third high-frequency speaker 26 and the fourth high-frequency speaker 28. In addition, the center arrangement of the mid-range speaker 20, the first high-frequency speaker 22 and the second high-frequency speaker 24 corresponds to the center arrangement of the mid-range speaker 20, the first high-frequency speaker 22 and the second high-frequency speaker 24 with respect to Figure 1 and Figure 2 The described center configuration.

[0023] As already discussed above, the first tweeter 22 and the second tweeter 24 and the optional third tweeter 26 and the fourth tweeter 28 are directional speakers or speaker assemblies or devices that form a directional speaker. That is, the main radiation lobes of the first tweeter 22, the second tweeter 24, the third tweeter 26 and the fourth tweeter 28 are focused onto the driver's seat 102 (at Figures 1 to 3In the example of the second tweeter 24 and the fourth tweeter 28) or on the passenger seat 104 (in Figures 1 to 3 1 and 2). As already discussed above, it is also possible that, instead, the main radiation lobes of the third tweeter 26 and the fourth tweeter 28 are focused on a position situated somewhere between the driver's seat 102 and the passenger seat 104. As already discussed above, the directionality of the sound radiated from a loudspeaker corresponds to the size of the source compared to the wavelength of the sound radiated by the respective loudspeaker. The larger the sound source is compared to the wavelength of the sound wave, the more directional the resulting sound beam. Thus, according to one example, the non-directional midrange loudspeaker 20 has a circular cross-section, and the first tweeter 22 and the second tweeter 24 each have a rectangular cross-section. This is Figure 4 On the other hand, the high frequency speakers 22, 24 can be extended sound sources with a length l1 in a first direction significantly greater than a width w1 in a second direction, the second direction being perpendicular to the first direction. Figure 4 The second tweeter 24 in FIG is shown as an example. In this way, the first tweeter 22 and the second tweeter 24 have inherent directionality. That is, they output directional sound without having to implement any additional beamforming capabilities. Figure 4 In the example of FIG, the first tweeter 22 and the second tweeter 24 are physically extended sound sources. Such extended sound sources typically provide simple, non-directional sound radiation at frequencies below 2 kHz and have inherent directionality for frequencies between 2 kHz and 20 kHz. The same applies to the optional third tweeter 26 and the fourth tweeter 28. However, as discussed above, the first tweeter 22 and the second tweeter may alternatively be, for example, acoustic lens technology (ALT) speakers.

[0024] On the other hand, the mid-range speaker 20 may not have a significant focused directional sound radiation characteristic. The inherent directionality of the mid-range speaker 20 may be minimized, for example, by using a physically smaller speaker (with a relatively small sound emitting surface area).

[0025] According to one example, first tweeter 22 is identical in construction to second tweeter 24. Third tweeter 26 can also be identical in construction to fourth tweeter 28. Furthermore, first tweeter 22 and second tweeter 24 can be identical in construction to third tweeter 26 and fourth tweeter 28. If acoustic lenses are used to create directional sound, potential asymmetries of the instrument panel can be accounted for. For example, depending on the exact features and geometry of the vehicle (e.g., the vehicle instrument panel), the acoustic lenses of different tweeters 22, 24, 26, 28 can have different aperture angles.

[0026] In the drawings and description, the arrangement is described as being arranged in the dashboard of the vehicle and reproducing sound so that it is perceived primarily by the driver and another passenger sitting in the front seat next to the driver, rather than by passengers sitting in the back seats. However, this is merely an example. In the same manner, the speaker arrangement may be arranged at any other suitable location in the vehicle so as to reproduce sound so that it is perceived by other passengers, such as passengers sitting in the back seats of the vehicle (e.g., the second or third row). According to one example, the center speaker configuration as described above is arranged in the center console of the vehicle and is configured to reproduce sound so that it is perceived primarily by passengers sitting in the back seats of the vehicle. That is, the mid-range speaker 20 can be a non-directional speaker that radiates sound equally toward the first and second rear seats, the first high-frequency speaker 22 can be a directional speaker that radiates sound primarily toward the first rear seat, and the second high-frequency speaker 24 can be a directional speaker that radiates sound primarily toward the second rear seat. Additional tweeters corresponding to the third and fourth tweeters described above can be arranged behind the passenger seat 104 or the driver's seat 102, or in the B-pillars of the vehicle, with each of the additional tweeters being arranged on a different side of the central speaker arrangement. In this way, one, two, or even more of the disclosed speaker arrangements can be arranged in a vehicle.

[0027] While various embodiments of the present invention have been described, it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the present invention. In particular, the skilled artisan will recognize the interchangeability of various features from different embodiments. Although these techniques and systems have been disclosed in the context of certain embodiments and examples, it will be understood that these techniques and systems can be extended beyond the specifically disclosed embodiments to other embodiments and / or uses and obvious modifications thereof. Accordingly, the present invention is not to be limited except in accordance with the appended claims and their equivalents.

[0028] The description of the embodiments has been presented for illustration and description purposes. Suitable modifications and variations of the embodiments may be made in light of the above description or may be obtained through practical application. The arrangements described are exemplary in nature and may include additional elements and / or omit elements. As used herein, elements stated in the singular and beginning with the word "one" or "an" should be understood as not excluding the plural form of the elements, unless such exclusion is stated. In addition, references to "one embodiment" or "an example" of the present disclosure are not intended to be interpreted as excluding the existence of additional embodiments that also include the described features. Terms such as "first," "second," and "third" are used merely as labels and are not intended to impose numerical requirements or a specific positional order on their objects. The systems described are exemplary in nature and may include additional elements and / or omit elements. The subject matter of the present disclosure includes all novel and non-obvious combinations and sub-combinations of the various systems and configurations disclosed, as well as other features, functions, and / or properties. The following claims specifically point out subject matter that is considered novel and non-obvious from the above disclosure.

Claims

1. A speaker system comprising: a mid-range speaker (20), the mid-range speaker (20) being arranged in a dashboard of a vehicle (10); a first high-frequency speaker (22) disposed in the instrument panel of the vehicle (10) adjacent to the mid-range speaker (20); as well as a second high-frequency speaker (24) disposed adjacent to the mid-range speaker (20) in the instrument panel of the vehicle (10), wherein The mid-range speaker (20) is arranged between the first high-frequency speaker (22) and the second high-frequency speaker (24). The mid-range speaker (20) is a non-directional speaker that radiates sound equally toward the driver's seat (102) and toward the passenger seat (104). The first tweeter (22) is a directional speaker that radiates sound toward the passenger seat (104), and The second high-frequency speaker (24) is a directional speaker that radiates sound toward the driver's seat (102). wherein the first high-frequency loudspeaker (22) and the second high-frequency loudspeaker (24) are each arranged at a distance of no more than 10 cm from the intermediate-frequency loudspeaker (20); A third tweeter (26) and a fourth tweeter (28), wherein The third high-frequency speaker (26) is arranged on a first side of the mid-range speaker (20) away from the mid-range speaker (20), The fourth high-frequency speaker (28) is arranged at a second side of the mid-range speaker (20) opposite to the first side, away from the mid-range speaker (20). The third tweeter (26) is a directional speaker that radiates sound toward the passenger seat (104), and The fourth tweeter is a directional speaker that radiates sound toward the driver's seat (102), and in: The first tweeter (22) is arranged closer to the passenger seat (104) than to the driver seat (102), and The second tweeter (24) is arranged closer to the driver's seat (102) than to the passenger seat (104) so ​​that a main radiation lobe of the first tweeter (22) does not intersect with a main radiation lobe of the second tweeter (24).

2. The loudspeaker system of claim 1, wherein the first high-frequency loudspeaker (22) and the second high-frequency loudspeaker (24) are each arranged at a distance of no more than 5 cm from the mid-range loudspeaker (20).

3. A speaker system as claimed in claim 1, wherein the speaker arrangement is arranged in a centered manner in the dashboard of the vehicle (10) so that the distance from the mid-range speaker (20) to the driver's seat (102) is substantially equal to the distance from the mid-range speaker (20) to the passenger seat (104).

4. The loudspeaker system of any one of claims 1 to 3, wherein the midrange loudspeaker (20) has a circular cross-section, and wherein the first tweeter (22) and the second tweeter (24) each have a rectangular cross-section.

5. The speaker system of claim 1, wherein The third high-frequency speaker (26) is arranged at a distance of at least 50 cm from the mid-frequency speaker (20), and The fourth high-frequency speaker (28) is arranged at a distance of at least 50 cm from the mid-range speaker.

6. The speaker system of claim 5, wherein the third tweeter (26) and the fourth tweeter (28) are each mounted to or in the dashboard of the vehicle (10), or coupled to an A-pillar of the vehicle (10).

7. The speaker system of claim 1, wherein The third tweeter (26) is arranged closer to the passenger seat (104) than to the driver seat (102), and The fourth tweeter (28) is arranged closer to the driver's seat (102) than to the passenger seat (104), The main radiation lobe of the third high-frequency speaker (26) and the main radiation lobe of the fourth high-frequency speaker (28) do not intersect.

8. The speaker system of claim 1, wherein The third tweeter (26) is arranged closer to the driver's seat (104) than to the passenger seat (102), and The fourth tweeter (28) is arranged closer to the passenger seat (102) than to the driver seat (104), The main radiation lobe of the third high-frequency speaker (26) and the main radiation lobe of the fourth high-frequency speaker (28) intersect in front of the intermediate-frequency speaker (20).

9. A speaker system comprising: a mid-range speaker (20) disposed in a center console of the vehicle (10); a first tweeter (22) disposed adjacent to the midrange speaker (20) in the center console of the vehicle (10); as well as a second high-frequency speaker (24) disposed adjacent to the mid-range speaker (20) in the center console of the vehicle (10), wherein The intermediate frequency speaker (20) is arranged between the first high frequency speaker (22) and the second high frequency speaker (24) The mid-range speaker (20) is a non-directional speaker that radiates sound equally toward the first rear seat and the second rear seat. The first high-frequency speaker (22) is a directional speaker that radiates sound toward the first rear seat, and The second high-frequency speaker (24) is a directional speaker that radiates sound toward the second rear seat. wherein the first high-frequency loudspeaker (22) and the second high-frequency loudspeaker (24) are each arranged at a distance of no more than 10 cm from the intermediate-frequency loudspeaker (20); A third tweeter (26) and a fourth tweeter (28), wherein The third high-frequency speaker (26) is arranged on a first side of the mid-range speaker (20) away from the mid-range speaker (20), The fourth high-frequency speaker (28) is arranged at a second side of the mid-range speaker (20) opposite to the first side, away from the mid-range speaker (20). The third tweeter (26) is a directional speaker that radiates sound toward the passenger seat (104), and The fourth tweeter is a directional speaker that radiates sound toward the driver's seat (102), and in: The first tweeter (22) is arranged closer to the passenger seat (104) than to the driver seat (102), and The second tweeter (24) is arranged closer to the driver's seat (102) than to the passenger seat (104) so ​​that a main radiation lobe of the first tweeter (22) does not intersect with a main radiation lobe of the second tweeter (24).

10. The speaker system of claim 9, wherein the third tweeter (26) and the fourth tweeter (28) are each mounted to or in the rear of a driver's seat (102) or a passenger seat (104), or are coupled to a B-pillar of the vehicle (10).

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