Speaker adapter and dual-core speaker assembly

Abstract

The present disclosure provides a speaker adapter and a dual-core speaker assembly. The speaker adapter includes: a main body, two mounting portions are symmetrically arranged on both sides of the main body to match with speakers respectively; a base, the base extends from the main body and around the main body to support the main body from the bottom; and an internal cavity, the internal cavity is formed in the main body.

Description

Technical Field

[0001] The present disclosure relates to speaker assemblies, and more particularly to a speaker adapter and a dual-core speaker assembly. Background Art

[0002] Traditional ECS speakers are single-core speakers. When the speaker is working, there may be packaging vibration, which will generate noise and affect the service life of plastic parts.

[0003] In order to solve the above problems, it has been proposed to fill the adapter with foam. This solution can reduce vibration, but at the same time it will increase the cost and complexity of the production process.

[0004] Therefore, a new speaker assembly is needed that can reduce packaging operating vibration and noise, extend the service life of plastic parts due to reduced vibration, and reduce space and cost. Summary of the invention

[0005] According to one aspect of the present disclosure, a speaker adapter is provided, which includes: a main body, two mounting portions are symmetrically arranged on both sides of the main body to match with speakers respectively; a base, which extends from and around the main body to support the main body from the bottom; and an internal cavity formed in the main body.

[0006] In one embodiment of the present disclosure, the base is open and the cavity is exposed to air.

[0007] In another embodiment of the present disclosure, the base is closed, surrounding the internal cavity.

[0008] Optionally, the cavity may be evacuated, or the cavity may be filled with foam, or the cavity may be filled with air.

[0009] In one embodiment of the present disclosure, the volume of the cavity is in the range of 1.2L to 3.5L.

[0010] In one embodiment of the present disclosure, the volume of the cavity is in the range of 6L to 35L.

[0011] In one embodiment of the present disclosure, the speaker adapter is integrally formed.

[0012] In one embodiment of the present disclosure, the speaker adapter is made of engineering plastic. Alternatively, the speaker adapter can be made of wooden material.

[0013] According to another aspect of the present disclosure, a dual-core speaker assembly is provided. The dual-core speaker assembly includes a speaker adapter and two speakers, wherein the two speakers are assembled face to face on the speaker adapter, and the speaker adapter includes: a main body, two mounting portions are symmetrically provided on both sides of the main body to match the speakers respectively; a base, the base extends from and around the main body to support the main body from the bottom; and an internal cavity, the internal cavity is formed in the main body.

[0014] In one embodiment of the present disclosure, the base is open and the cavity is exposed to air.

[0015] In one embodiment of the present disclosure, the base is closed, surrounding the internal cavity.

[0016] Optionally, the cavity may be evacuated, or the cavity may be filled with foam, or the cavity may be filled with air.

[0017] In one embodiment of the present disclosure, the volume of the cavity is in the range of 1.2L to 3.5L.

[0018] In one embodiment of the present disclosure, the volume of the cavity is in the range of 6L to 35L.

[0019] In one embodiment of the present disclosure, the speaker adapter is integrally formed.

[0020] In one embodiment of the present disclosure, the speaker adapter is made of engineering plastic. Alternatively, the speaker adapter can be made of wooden material.

[0021] In one embodiment of the present disclosure, both speakers are externally coupled subwoofers.

[0022] In one embodiment of the present disclosure, when the two speakers are mounted on the speaker adapter, the gap separating the two speakers is greater than twice the maximum displacement of the cones of the two speakers.

[0023] In one embodiment of the present disclosure, when the two speakers are mounted on the speaker adapter, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

[0024] The speaker assembly is installed in the vehicle luggage compartment above the wheel hub, or in the spare tire position in the luggage compartment, or in the armrest box or shift handbrake between the main driving position and the co-pilot position of the vehicle.

[0025] When the adapter has an opening structure, at least one opening is formed on the body sheet metal part of the vehicle, the dual-core speaker assembly is connected to the engine compartment of the vehicle via the opening, and the dual-core speaker assembly is installed below the vehicle center console in the cab.

[0026] When the adapter has a closed structure, the dual-core speaker assembly is installed below the vehicle center console in the cab without an opening in the body sheet metal part.

[0027] The speaker assembly of the present disclosure can reduce packaging operating vibration and noise, extend the service life of plastic parts due to vibration reduction, and reduce space and cost. Compared with traditional single-core ECS speakers, the speaker assembly provided by the present disclosure has an increased deep base level and higher sensitivity.

[0028] The significance and benefits of the present disclosure will be apparent from the description of the following embodiments. However, it should be understood that these embodiments are merely examples of how the present invention may be implemented, and the meaning of the terms used to describe the present invention is not limited to the specific meanings used in the description of the embodiments.

[0029] Other systems, methods, features and advantages of the present disclosure will be or will become apparent to those skilled in the art upon studying the following drawings and detailed description. It is expected that all such additional systems, methods, features and advantages should be included in this specification, within the scope of the present disclosure and protected by the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present disclosure may be better understood with reference to the following drawings and descriptions. The components in the drawings are not necessarily drawn to scale, but rather emphasize the principles of the present disclosure. In addition, in the drawings, the same reference numerals indicate corresponding parts in all different views.

[0031] Figure 1 A schematic diagram showing an assembled state of two ECS speakers face-to-face assembled on a plastic adapter according to an embodiment of the present disclosure;

[0032] Figure 2 It shows that Figure 1 A schematic diagram of the unassembled state of two ECS speakers and a plastic adapter is shown;

[0033] Figure 3 It shows that Figure 1 A schematic diagram of a side view of an assembled state of two ECS speakers shown face to face assembled on a plastic adapter;

[0034] Figure 4 Shown along Figure 3A schematic diagram of a cross-sectional view taken along line AA in FIG.

[0035] Figure 5 It shows that Figure 1 A schematic diagram of a top view of an assembled state of two ECS speakers shown face to face assembled on a plastic adapter;

[0036] Figure 6 Shown along Figure 5 A schematic diagram of a cross-sectional view taken along line BB in FIG.

[0037] Figure 7 A schematic diagram showing an isometric view of two ECS speakers and a plastic adapter in a separated state;

[0038] Figure 8 A schematic diagram showing a bottom view of a plastic adapter according to an embodiment of the present disclosure;

[0039] Fig. 9 A schematic diagram showing a bottom view of a plastic adapter according to another embodiment of the present disclosure;

[0040] Fig.10 A schematic diagram showing an assembled state in which two speakers are assembled face to face on a plastic adapter according to another embodiment of the present disclosure;

[0041] Fig.11 Graphs showing fundamental and harmonic distortion components as a function of frequency for a dual-core ECS speaker assembly according to the present disclosure and other types of conventional ECS speakers. DETAILED DESCRIPTION

[0042] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.In the following description of the present disclosure, detailed description of known functions and configurations incorporated herein will be omitted.

[0043] In the following embodiments, the ECS speaker assembly is discussed as an example. It should be understood that the structure and concept of the present disclosure can be applied to other types of speakers and speaker assemblies known in the art for reducing vibration and saving cost and space.

[0044] To overcome at least some of the problems of conventional speakers, the present disclosure provides a dual-core ECS speaker assembly in which two ECS speakers are assembled face-to-face on a plastic adapter, and an adapter suitable for supporting the two ECS speakers to form such an assembly.

[0045] With this dual-core ECS speaker assembly, the overall package operating vibration and noise can be reduced, while the service life of the plastic parts of the speaker assembly can be extended due to the reduced vibration. Since a single adapter is used to support two ECS speakers, the space to accommodate the speaker assembly can be reduced and the overall cost can be reduced, and foam filling of such an adapter is not required. In addition, the dual-core ECS speaker assembly has improved acoustic performance, such as increased deep base level and higher sensitivity, compared to conventional single-core ECS speaker assemblies.

[0046] Hereinafter, the structure and concept of the present disclosure will be described in more detail with reference to the accompanying drawings. The details and examples provided are only for facilitating the understanding of the present disclosure and should not be limited in any way.

[0047] Implementation Plan 1

[0048] Figure 1 Two ECS speakers according to an embodiment of the present disclosure are shown assembled face to face on a plastic adapter, and Figure 2 Shown are two ECS speakers and the adapter in a detached state.

[0049] like Figure 1 As shown, a dual-core speaker assembly 1 is provided. The dual-core speaker assembly 1 includes two speakers 2 and a speaker adapter 3. The two speakers 2 are assembled on the speaker adapter 3 face to face.

[0050] like Figure 2 As shown, the speaker adapter 3 includes: a main body 31, two mounting portions 32 are symmetrically arranged on both sides of the main body to match the speaker 2 respectively; a base 33, which extends from the main body 31 and around the main body to support the main body 31 from the bottom; and an internal cavity 34 ( Figure 8 As shown), the internal cavity is formed in the main body 31.

[0051] Optionally, the interior cavity may be evacuated, or the interior cavity may be filled with foam, or the interior cavity may be filled with air.

[0052] As an example, the speaker adapter is formed integrally, and the speaker adapter is made of engineering plastics such as PC, PP, ABS, PPT, etc. Alternatively, the speaker adapter may also be made of a wooden material such as solid wood, MDF, etc.

[0053] In this embodiment, both speakers are externally coupled subwoofers (ECS). However, it should be understood that other types of speakers can also be used in the dual-core speaker assembly as long as the adapter is designed to match the speaker assembled thereon.

[0054] When the two ECS speakers are mounted on the speaker adapter, the gap separating the two speakers is greater than twice the maximum displacement of the two speaker cones, such as Figure 3 shown.

[0055] Furthermore, when the two speakers are mounted on the speaker adapter, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

[0056] When the two ECS speakers are assembled on the mounting portion 32 of the adapter 3, the side view thereof is Figure 3 and a top view in Figure 5 When Figure 3 When taken along line AA, Figure 4 A cross-sectional view is shown in FIG. Figure 5 When taken along line BB, Figure 6 A cross-sectional view is shown in . It can be seen that the structure of the adapter is symmetrical and the mounting portion 32 is suitable for matching with the ECS speaker.

[0057] Optionally, the ECS speaker 2 can be assembled on the adapter 3 in a detachable or non-detachable manner. They can be connected to each other by any conventional means in the art. For example, the speaker can be glued to the adapter, or fastened to the adapter, and the present disclosure is not limited thereto.

[0058] Figure 7 A schematic diagram showing an isometric view of two ECS speakers and a plastic adapter in a separated state. Figure 7 The structure of the ECS speaker can be clearly seen in Figures 1 to 9 In the embodiment, the ECS speaker is shown as an example. However, it should be understood that other types of speakers can also be used in the dual-core speaker assembly as long as the adapter is designed to match the speaker assembled thereon. Therefore, a detailed description of the ECS speaker structure will be omitted in this article.

[0059] Figure 8 Schematic diagram showing a bottom view of a plastic adapter according to the above embodiment. Figure 8 As shown, the plastic adapter has an open structure, and the base 33 only includes a peripheral portion around the bottom edge of the main body for supporting the adapter so that the adapter can be placed on a plane. In this case, the internal cavity 34 formed in the main body is exposed to the air.

[0060] When the plastic adapter has an open structure, the volume of the internal cavity is in the range of 1.2 L to 3.5 L. When the volume of the internal cavity is outside the above range, the dual-core speaker assembly can work, but the performance will be reduced.

[0061] This dual-core speaker assembly with an open structure of the adapter can be installed in, for example, a luggage compartment of a vehicle. In this case, the body sheet metal parts of the vehicle need to be formed with at least one opening.

[0062] For example, the speaker assembly can be installed inside the vehicle body above the wheel hub (inside the trunk), or alternatively installed in the spare tire position in the trunk, or alternatively installed in the armrest box between the main driving position and the co-pilot position or under the shift handbrake. Since the adapter has an open structure, the opening of the speaker assembly can be connected to the engine compartment through the body sheet metal opening, and the speaker is installed under the center console in the cab.

[0063] With the dual-core ECS speaker assembly provided in this embodiment, the overall packaging operating vibration and noise can be reduced, and the service life of the plastic parts of the speaker assembly can be extended due to the reduced vibration. Since a single adapter suitable for supporting two ECS speakers is used, the space for accommodating the speaker assembly can be reduced and the overall cost can be reduced, and foam filling of such an adapter is not required. In addition, the dual-core ECS speaker assembly has improved acoustic performance, such as increased deep base level and higher sensitivity, compared to conventional single-core ECS speaker assemblies.

[0064] Fig.11 Graphs showing fundamental and harmonic distortion components as a function of frequency for a dual-core ECS speaker assembly according to the present disclosure and other types of conventional ECS speakers.

[0065] like Fig.11 As shown in the figure, all speaker sensitivities are measured at 1m / 1W. At 20Hz, the sensitivity of the dual-core ECS is more than 3dB higher than other speakers. From 30Hz to 50Hz, the sensitivity of the dual-core ECS is more than 2dB higher than other speakers. Therefore, it can be seen that Fig.11 Of the speakers shown, the dual-core ECS speaker has the best sensitivity.

[0066] Implementation Plan 2

[0067] This embodiment provides a dual-core ECS speaker assembly, which is very similar to the above embodiment 1, but the only difference is that Fig. 9 As shown, the plastic adapter of this embodiment has a closed structure.

[0068] Fig. 9 FIG. 2 is a schematic diagram showing a bottom view of a plastic adapter according to another embodiment of the present disclosure. Fig. 9 As shown, the base 33 includes a surface that surrounds the inner cavity 34 together with the main body, in addition to the peripheral portion surrounding the bottom edge of the main body.

[0069] When the plastic adapter has a closed structure, the volume of the internal cavity is in the range of 6L to 35L. If the volume is less than 6L, the performance will be reduced. For a volume greater than 35L, more space will be required to accommodate the speaker assembly, and the performance may not be significantly improved.

[0070] The speaker assembly can be mounted inside the vehicle body above the wheel hub (inside the trunk), or alternatively in the spare tire position in the trunk, or alternatively in the armrest box between the main driving position and the front passenger position or under the shift handbrake. For example, the speaker can be installed under the center console in the cab without requiring any body sheet metal openings.

[0071] Implementation Plan 3

[0072] In the dual-core speaker assembly provided in this embodiment, the speaker adapter 3 is the same as those described in the above embodiments 1 and 2, but the difference is that, Fig.10 As shown, the two speakers 10 assembled on the adapter are another type of speakers different from the ECS speakers. For example, the speakers 10 can be subwoofers, mid-woofers, or mid-range speakers.

[0073] Fig.10 A schematic diagram showing an assembled state of two speakers face-to-face assembled on a plastic adapter according to another embodiment of the present disclosure. It should be noted that the two speakers can be any conventional type of speakers used in the art.

[0074] In this embodiment, both speakers 10 may be subwoofers, or alternatively, they may be mid-woofers; or alternatively, they may be mid-range speakers. The adapter is designed to match the speaker to which it is assembled.

[0075] When the two speakers 10 are mounted on the speaker adapter 3, the gap between the two speakers 10 is greater than twice the maximum displacement of the cones of the two speakers. Fig.10 shown.

[0076] Furthermore, when the two speakers 10 are mounted on the speaker adapter 3, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

[0077] The installation position of the speaker assembly of this embodiment can be the same as those installation positions described above. That is, the speaker assembly can be installed inside the vehicle body (inside the luggage compartment) above the wheel hub, or alternatively installed in the spare tire position in the luggage compartment, or alternatively installed in the armrest box between the main driving position and the co-pilot position or under the shift handbrake. If the adapter has an open structure, the opening of the speaker assembly can be connected to the engine compartment via the body sheet metal opening, and the speaker is installed under the center console in the cab. If the adapter has a closed structure, the optional installation position is the same as the open structure case, without any body sheet metal opening.

[0078] Implementation Plan 4

[0079] In this embodiment, an exemplary speaker adapter for use in a dual-core speaker assembly is provided.

[0080] Reference now Figure 2 The speaker adapter 3 includes: a main body 31, two mounting portions 32 are symmetrically arranged on both sides of the main body to match the speaker 2 respectively; a base 33, which extends from the main body 31 and around the main body to support the main body 31 from the bottom; and an internal cavity 34 ( Figure 8 As shown), the internal cavity is formed in the main body 31.

[0081] Optionally, the interior cavity may be evacuated, or the interior cavity may be filled with foam, or the interior cavity may be filled with air.

[0082] As an example, the speaker adapter is formed integrally, and the speaker adapter is made of engineering plastics such as PC, PP, ABS, PPT, etc. Alternatively, the speaker adapter may also be made of a wooden material such as solid wood, MDF, etc.

[0083] In this embodiment, both speakers shown in the drawings are externally coupled subwoofers (ECS). However, it should be understood that other types of speakers can also be used in the dual-core speaker assembly, as long as the adapter is designed to match the speakers assembled thereon. The present disclosure should not be limited to the specific examples shown in the drawings. Both speakers can be subwoofers, or alternatively, they are mid-woofers; or alternatively, they are mid-range speakers. The adapter is designed to match the speakers assembled thereon.

[0084] The adapter is designed so that when the two ECS speakers are mounted on the speaker adapter, the gap separating the two speakers is greater than twice the maximum displacement of the cones of the two speakers, such as Figure 3 shown.

[0085] Furthermore, the adapter is designed so that when the two speakers are mounted on the speaker adapter, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

[0086] When the two ECS speakers are assembled on the mounting portion 32 of the adapter 3, the side view thereof is Figure 3 and a top view in Figure 5 As shown in Figure 3 When taken along line AA, Figure 4 A cross-sectional view is shown in FIG. Figure 5 When taken along line BB, Figure 6 A cross-sectional view is shown in FIG. 1 . It can be seen that the structure of the adapter is symmetrical and the mounting portion 32 is adapted to be matched with the ECS speaker mounted thereon.

[0087] Optionally, the adapter is designed so that the ECS speaker 2 can be assembled on the adapter 3 in a detachable manner or a non-detachable manner. For example, the speaker can be glued to the adapter, or fastened to the adapter, and the present disclosure is not limited thereto.

[0088] Figure 8 Schematic diagram showing a bottom view of a plastic adapter according to the above embodiment. Figure 8 As shown, the plastic adapter has an open structure, and the base 33 only includes a peripheral portion around the bottom edge of the main body for supporting the adapter so that the adapter can be placed on a plane. In this case, the internal cavity 34 formed in the main body is exposed to the air.

[0089] When the plastic adapter has an open structure, the volume of the internal cavity is in the range of 1.2 L to 3.5 L. When the volume of the internal cavity is outside the above range, the dual-core speaker assembly can work, but the performance will be reduced.

[0090] This dual-core speaker assembly with an open structure of the adapter can be installed in, for example, a luggage compartment of a vehicle. In this case, the body sheet metal parts of the vehicle need to be formed with at least one opening.

[0091] For example, the speaker assembly can be installed inside the vehicle body above the wheel hub (inside the trunk), or alternatively installed in the spare tire position in the trunk, or alternatively installed in the armrest box between the main driving position and the co-pilot position or under the shift handbrake. Since the adapter has an open structure, the opening of the speaker assembly can be connected to the engine compartment through the body sheet metal opening, and the speaker is installed under the center console in the cab.

[0092] With the aid of such a speaker adapter provided in the present embodiment, a dual-core speaker assembly can be constructed. The overall packaging operating vibration and noise of the dual-core assembled speaker can be reduced, and the service life of the plastic parts of the speaker assembly can be extended due to the reduced vibration. Since a single adapter suitable for supporting two ECS speakers is used, the space for accommodating the speaker assembly can be reduced and the overall cost can be reduced, and foam filling of such an adapter is not required. In addition, the dual-core ECS speaker assembly has improved acoustic performance, such as increased deep base level and higher sensitivity, compared to conventional single-core ECS speaker assemblies.

[0093] Implementation Plan 5

[0094] In this embodiment, another exemplary speaker adapter is provided, which is very similar to the above-mentioned embodiment 4, but the difference is that, Fig. 9 As shown, the adapter of this embodiment has a closed structure.

[0095] Fig. 9 A schematic diagram of a bottom view of a plastic adapter is shown. Fig. 9 As shown, the base 33 includes a surface that surrounds the inner cavity 34 together with the main body, in addition to the peripheral portion surrounding the bottom edge of the main body.

[0096] In this embodiment, both speakers shown in the drawings are externally coupled subwoofers (ECS). However, it should be understood that other types of speakers can also be used in the dual-core speaker assembly, as long as the adapter is designed to match the speakers assembled thereon. The present disclosure should not be limited to the specific examples shown in the drawings. Both speakers can be subwoofers, or alternatively, they are mid-woofers; or alternatively, they are mid-range speakers. The adapter is designed to match the speakers assembled thereon.

[0097] The adapter is designed so that when the two ECS speakers are mounted on the speaker adapter, the gap separating the two speakers is greater than twice the maximum displacement of the cones of the two speakers.

[0098] Furthermore, the adapter is designed so that when the two speakers are mounted on the speaker adapter, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

[0099] When the adapter has a closed structure, the volume of the internal cavity is in the range of 6L to 35L. If the volume is less than 6L, the performance will be reduced. For a volume greater than 35L, more space will be required to accommodate the speaker assembly, and the performance may not be significantly improved.

[0100] The speaker assembly can be mounted inside the vehicle body above the wheel hub (inside the trunk), or alternatively in the spare tire position in the trunk, or alternatively in the armrest box between the main driving position and the front passenger position or under the shift handbrake. For example, the speaker can be installed under the center console in the cab without requiring any body sheet metal openings.

[0101] With the help of the dual-core speaker assembly and its speaker adapter, the overall package operating vibration and noise can be reduced, and the service life of the speaker assembly plastic parts can be extended due to the reduced vibration. Since a single adapter is used for supporting two speakers, the space for accommodating the speaker assembly can be reduced and the overall cost can be reduced. Due to the vibration cancellation between the two speakers, the anti-vibration effect is obvious even without filling foam in such an adapter. In addition, compared with the conventional single-core ECS speaker assembly, the dual-core speaker assembly has improved acoustic performance, such as increased deep base level and higher sensitivity.

[0102] For purposes of clarifying use in pending claims and hereby providing notice to the public, the phrase “ 、 ,...and <n> At least one of "or"< / n> 、 、... <n>or at least one of a combination thereof” is defined by the applicant in the broadest sense, unless the applicant makes an explicit statement to the contrary, superseding any other implicit definition above or below, to mean that one or more elements are selected from the group consisting of A, B, ... and N, that is, any combination of one or more of the elements A, B, ... or N includes any one element alone or in combination with one or more of the other elements, and these other elements may also include additional elements not listed in combination.

[0103] Although various embodiments of the present disclosure 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 disclosure. Accordingly, the present disclosure is not to be limited except in light of the following claims and their equivalents.< / n>

Claims

1. A speaker adapter, used for assembling two speakers face to face on the speaker adapter, the speaker adapter comprising: A main body, two mounting portions are symmetrically arranged on both sides of the main body, wherein each mounting portion is suitable for matching with a speaker to be mounted thereon; a base extending from and around the main body for supporting the main body from the bottom; as well as an internal cavity formed in the body, The base is closed and surrounds the inner cavity, and the inner cavity is evacuated. 2 . The speaker adapter according to claim 1 , wherein the volume of the internal cavity is in the range of 1.2 L to 3.5 L.

3. The speaker adapter of claim 1, wherein the volume of the internal cavity is in the range of 6L to 35L.

4. The speaker adapter according to any one of claims 1 to 3, wherein the speaker adapter is integrally formed.

5. The speaker adapter according to any one of claims 1 to 3, wherein the speaker adapter is made of engineering plastic.

6. The speaker adapter according to any one of claims 1 to 3, wherein the speaker adapter is made of a wooden material.

7. A dual-core speaker assembly, comprising a speaker adapter and two speakers, wherein the two speakers are assembled face to face on the speaker adapter, characterized in that: The speaker adapter comprises: A main body, two mounting portions are symmetrically arranged on both sides of the main body, wherein each mounting portion matches a speaker mounted thereon; a base extending from and around the main body for supporting the main body from the bottom; and an internal cavity formed in the body, The base is closed and surrounds the inner cavity, and the inner cavity is evacuated.

8. The dual-core speaker assembly according to claim 7, wherein the volume of the internal cavity is in the range of 1.2L to 3.5L.

9. The dual-core speaker assembly according to claim 7, wherein the volume of the internal cavity is in the range of 6L to 35L.

10. The dual core speaker assembly according to any one of claims 7 to 9, wherein the speaker adapter is integrally formed.

11. The dual-core speaker assembly according to any one of claims 7 to 9, wherein the speaker adapter is made of engineering plastic.

12. The dual-core speaker assembly according to any one of claims 7 to 9, wherein the speaker adapter is made of a wooden material.

13. The dual-core speaker assembly according to any one of claims 7 to 9, wherein both of the two speakers are externally coupled subwoofers.

14. The dual-core speaker assembly according to any one of claims 7 to 9, wherein when the two speakers are mounted on the speaker adapter, the gap separating the two speakers is greater than twice the maximum displacement of the cones of the two speakers.

15. The dual-core speaker assembly according to any one of claims 7 to 9, wherein when the two speakers are mounted on the speaker adapter, the product of the gap and the width of each speaker is greater than 80% of the effective area of ​​each cone.

16. The dual-core speaker assembly according to claim 7, wherein the speaker assembly is installed in the vehicle luggage compartment above the wheel hub, or installed in the spare tire position in the luggage compartment, or installed between the armrest box or the shift handbrake between the main driving position and the co-pilot position of the vehicle.

17. The dual-core speaker assembly according to claim 7, wherein at least one opening is formed on a body sheet metal part of the vehicle, the dual-core speaker assembly is connected to an engine compartment of the vehicle via the opening, and the dual-core speaker assembly is installed below a center console of the vehicle in a cab.

18. The dual core speaker assembly of claim 7, wherein the dual core speaker assembly is mounted below a vehicle center console in a cab without openings in a body sheet metal part.

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