CN209787412U - Tower type vertical linear array active sound box - Google Patents
Tower type vertical linear array active sound box Download PDFInfo
- Publication number
- CN209787412U CN209787412U CN201920961550.8U CN201920961550U CN209787412U CN 209787412 U CN209787412 U CN 209787412U CN 201920961550 U CN201920961550 U CN 201920961550U CN 209787412 U CN209787412 U CN 209787412U
- Authority
- CN
- China
- Prior art keywords
- linear array
- sound box
- shell
- horn
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The utility model discloses a tower type vertical linear array active sound box, which comprises a base sound box and two linear array sound boxes arranged on the base sound box; the base loudspeaker box comprises a shell, a front cavity and a rear cavity are arranged in the shell, and the front cavity and the rear cavity are separated by a partition plate; the front surface of the shell corresponding to the front cavity is provided with a sound returning hole, and a bass loudspeaker is arranged in the front cavity; the front end surface of the shell is in a conical design; the linear array loudspeaker box comprises a first linear array loudspeaker box and a second linear array loudspeaker box. The utility model relates to a rationally, adopt tower arrangement's mode, easy to assemble and dismantlement have alleviateed the work load of equipment, and are convenient to operate.
Description
Technical Field
The utility model belongs to the audio amplifier field, more specifically say, relate to a tower vertical linear array active audio amplifier.
background
At present, a main sound box is connected with a 220v alternating current power supply through a power plug to supply power, a power amplifier is arranged in the main sound box, and the main sound box is connected with an auxiliary sound box through a common audio cable to further push an auxiliary sound box loudspeaker to sound.
However, the main sound box and the auxiliary sound box in the sound box are simply stacked, the mutual connection relationship is poor, the functions are not many, the sound effect cannot be sufficiently ensured, and the application range is greatly limited.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a tower vertical linear array active audio amplifier, reasonable in design adopts tower arrangement's mode, easy to assemble and dismantlement, has alleviateed the work load of equipment, and convenient the starting is provided, and base audio amplifier, cylindricality audio amplifier can make up the use, also can the exclusive use, and this is decided by control chip, and simultaneously, the audio amplifier is effectual, and the practicality is strong, is suitable for the popularization.
In order to achieve the above purpose, the utility model provides a following technical scheme:
The tower type vertical linear array active sound box comprises a base sound box and two linear array sound boxes arranged on the base sound box; the method is characterized in that: the base loudspeaker box comprises a shell, a front cavity and a rear cavity are arranged in the shell, and the front cavity and the rear cavity are separated by a partition plate; the front surface of the shell corresponding to the front cavity is provided with a sound returning hole, and a bass loudspeaker is arranged in the front cavity; the front end surface of the shell is in a conical design; the linear array loudspeaker box comprises a first linear array loudspeaker box and a second linear array loudspeaker box; the first linear array sound box comprises a first shell, and the front end surface of the first shell is in a conical design; the lower part in the first shell is provided with a plurality of bass units, the upper part is provided with a linear high-pitch horn, and the first shell is internally provided with power amplifier equipment; the second line array sound box comprises a second shell, and the front end face of the second shell is in a conical design; the upper part in the second shell is provided with a plurality of bass units, the lower part is provided with a linear high-pitch horn, and the second shell is internally provided with power amplifier equipment;
The base sound box is provided with a circuit board, and the circuit board is provided with a control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface;
A main control circuit board is arranged in each of the first linear array sound box and the second linear array sound box, and a main control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface are arranged on the main control circuit board; the power amplifier equipment is connected with all bass units, linear high pitch horns and woofers in the base loudspeaker box through connecting wires.
As an optimized technical scheme, the linear treble horn comprises a treble unit, a treble linear array waveguide horn arranged in front of the treble unit and a diffusion horn connected with and communicated with the treble linear array waveguide horn; the treble linear array waveguide horn is made by two first and second sub treble horn with identical shapes assembled together.
as an optimized technical solution, the first high-pitch horn comprises a first mounting semicircular plate arranged at the upper end and a first connecting long plate arranged at the lower end; the first mounting semicircular plate and the first connecting long plate are connected together through a first connecting plate; a first through hole is formed in the middle of the first connecting plate, a first raised quarter-sphere outer wall is arranged on one side of the first through hole, and a second raised quarter-sphere outer wall is arranged on the other side of the through hole; the first outer wall and the second outer wall are distributed in central symmetry; the second high-pitch horn comprises a second mounting semicircular plate arranged at the upper end and a second connecting long plate arranged at the lower end; the second mounting semicircular plate and the second connecting long plate are connected together through a second connecting plate; a second through hole is formed in the middle of the second connecting plate, a third raised quarter-sphere outer wall is arranged on one side of the second through hole, and a fourth raised quarter-sphere outer wall is arranged on the other side of the through hole; the third outer wall and the fourth outer wall are distributed in central symmetry; the high pitch linear array waveguide horn is formed by combining and splicing a first high pitch horn and a second high pitch horn; when the assembly is carried out, the first high-pitch horn is in the forward direction, and the second high-pitch horn is in the reverse direction.
As an optimized technical scheme, 1-6 waveguide plates which are arranged in parallel are arranged on the concave surfaces of the second inner wall and the fourth inner wall.
As an optimized technical scheme, a connecting seat is arranged on the upper end face of the pedestal sound box, and a connecting hole is formed in the connecting seat; the upper end face and the lower end face of the columnar sound box are respectively provided with an auxiliary connecting seat, and an auxiliary connecting hole is formed in the auxiliary connecting seat.
As an optimized technical scheme, two side surfaces of the base sound box and the cylindrical sound box are respectively provided with a handle seat, and two sides of the handle seat are respectively provided with a handle connecting plate; a handle is transversely connected between the two handle connecting seats; the handle seat, the handle connecting plate and the handle are connected together through bolts, and the handle seat, the handle connecting plate and the handle are all made of aluminum alloy materials.
As an optimized technical scheme, 8 corners of a side surface of a first shell of the first line array sound box are respectively provided with a connecting hole, and 8 corners of a side surface of a second shell of the second line array sound box are respectively provided with a connecting hole; two adjacent connecting holes on the first linear array sound box and the second linear array sound box are connected together through a plate type connecting piece; the plate-type connecting piece comprises a connecting plate, four corners of the connecting plate are respectively provided with a group of connecting through holes, and the area of each connecting through hole is not smaller than that of each connecting hole; the connecting plate is provided with four connecting columns, the connecting columns are respectively connected with inserting columns through connecting lines, and the inserting columns are inserted between the connecting through holes and the connecting holes to realize fixation.
Owing to adopted above-mentioned technical scheme, compare with prior art, the beneficial effects of the utility model are that:
1. The utility model relates to a rationally, adopt tower arrangement's mode, easy to assemble and dismantlement have alleviateed the work load of equipment, and are convenient to operate.
2. the utility model discloses be provided with control chip in the central line array audio amplifier, such design has guaranteed that two linear array audio amplifiers can make up the use, also can the exclusive use.
3. the utility model discloses control chip and the design of a plurality of interfaces can guarantee that the audio amplifier has 5 at least well mode, and the use of audio amplifier can be guaranteed in the design of many mode.
4. the woofer in the cylindrical sound box of the utility model adopts linear array installation, thus ensuring the tone quality and sound effect; linear display of sound wave is realized to linear high pitch horn, and the sound wave that divide into 3-8 bundles is propagated, and simultaneously, linear high pitch horn in the array audio amplifier of line can transversely be installed, also can vertically be installed, and linear high pitch horn's sound wave diffusion angle is upwards 6, downwards 6, so be convenient for the sound wave to propagate far away, also can linear high pitch horn's sound wave diffusion angle be upwards 6, downwards 24, so be convenient for the sound wave to propagate near.
5. The utility model provides a be provided with the inner chamber of compriseing two first outer walls and two second outer walls in the branch mount pad, the inner chamber is the hair side, and such design has guaranteed that the sound reflection is even, guarantees the tone quality.
The present invention will be further explained with reference to the drawings and examples.
Drawings
Fig. 1 is a schematic front view of the combined base speaker and linear array speaker of an embodiment of the present invention;
fig. 2 is a schematic view of a back structure of the combined pedestal loudspeaker box and linear array loudspeaker box according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of a handle seat and a handle on the linear array loudspeaker box according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of an upper end surface of a base speaker according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first high-pitch horn according to an embodiment of the present invention;
Fig. 6 is a schematic structural view of a second high pitch horn according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a plate-type connecting member connected between two linear arrays of speakers according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1-7, the tower-type vertical linear array active speaker includes a pedestal speaker 5 and a linear array speaker disposed on the pedestal speaker.
The base sound box 5 comprises a shell, a front cavity and a rear cavity are arranged in the shell, and the front cavity and the rear cavity are separated through a partition plate. The front surface of the shell corresponding to the front cavity is provided with a sound returning hole 3, and a bass loudspeaker 4 is arranged in the front cavity. The echo hole 3 can adopt a deepened design mode, so that the echo effect can be ensured, and the tone quality effect is ensured. The front end face of the shell is in a conical design. Be provided with the LOGO on the base audio amplifier, install miniature LED lamp in the LOGO, miniature LED lamp connection control chip can realize that the LOGO is luminous after the start. The base sound box is provided with a circuit board 7, and the circuit board 7 is provided with a control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface. The interface and the control chip can be added or subtracted according to the needs, and all the interfaces and the control chips which meet the needs can be added or subtracted.
the linear array loudspeaker box comprises a first linear array loudspeaker box and a second linear array loudspeaker box. The first linear array sound box comprises a first shell, and the front end face of the first shell is in a conical design. The lower part in the first shell is provided with a plurality of bass units 1, and the upper part is provided with linear high pitch horn 2, and is provided with power amplifier equipment in the first shell. The second line array sound box comprises a second shell, and the front end face of the second shell is in a conical design. The upper portion in the second shell is provided with a plurality of bass units 1, and the lower part is provided with linear high pitch horn 2, and is provided with amplifier equipment in the second shell. The components in the first and second line array enclosures are numbered identically because the two parts use identical linear treble horn and bass units. The main control circuit board 6 is arranged in the first linear array sound box and the second linear array sound box, and a main control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface are arranged on the main control circuit board 6. The power amplifier equipment is connected with all bass units, linear high pitch horns and woofers in the base loudspeaker box through connecting wires.
Linear treble bugle includes the treble unit, installs at the anterior high pitch linear array waveguide bugle of treble unit and connects and communicate the diffusion bugle on high pitch linear array waveguide bugle. The high pitch unit adopts a high pitch loudspeaker which is commonly available on the market. The diffusion horn is a horn-like loudspeaker enclosure. The fan angle of the loudspeaker enclosure determines the angle of sound diffusion. In this embodiment, the linear high pitch horn can be transversely installed, also can vertically install, and the sound wave diffusion angle of linear high pitch horn is upwards 6, downwards 6, so be convenient for the sound wave to propagate far away, also can the sound wave diffusion angle of linear high pitch horn be upwards 6, downwards 24, so be convenient for the sound wave to propagate near.
the treble linear array waveguide horn is made by two first and second sub treble horn with identical shapes assembled together. The first branched horn comprises a first mounting half-plate 12 provided at an upper end and a first connecting long plate 16 provided at a lower end. The first mounting semicircular plate 12 and the first connecting long plate 16 are connected together through a first connecting plate 18. The middle part of the first connecting plate 18 is provided with a first through hole 13, one side of the first through hole 13 is provided with a first raised quarter-sphere outer wall 17, and the other side of the through hole is provided with a second raised quarter-sphere outer wall 14. The first outer wall and the second outer wall are distributed in central symmetry. As shown in fig. 6, the second bifurcated horn includes a second mounting semicircular plate 19 provided at an upper end and a second connecting long plate 23 provided at a lower end. The second mounting semicircular plate 19 and the second connecting long plate 23 are connected together through a second connecting plate 24. The middle part of the second connecting plate 24 is provided with a second through hole 20, one side of the second through hole 20 is provided with a third raised quarter-sphere outer wall 25, and the other side of the through hole is provided with a fourth raised quarter-sphere outer wall 21. The third outer wall and the fourth outer wall are distributed in central symmetry. The concave surfaces of the second inner wall and the fourth inner wall are provided with 1-6 waveguide plates which are arranged in parallel.
The treble horn is assembled by the first treble horn and the second treble horn. When the assembly is carried out, the first high-pitch horn is in the forward direction, and the second high-pitch horn is in the reverse direction. The assembling method is that the first althorn and the second althorn are arranged in the same way, then the second althorn is rotated 180 degrees according to the vertical central axis, and then the first outer wall 17 and the fourth outer wall 21 are assembled together, and a wave guide cavity is formed between the first outer wall 17 and the fourth outer wall 21; the second outer wall 14 and the third outer wall 25 are combined together, a wave guide cavity is formed between the second outer wall 14 and the third outer wall 25, and finally the high-pitch horn is formed by fixing the second outer wall 14 and the third outer wall 25 together through bolts. The sound waves emitted by the high-pitch unit are dispersed through the two wave guide cavities in the high-pitch horn to form a plurality of sound waves, and finally the sound waves of all the sound waves are diffused through the diffusion horn to form beautiful musical notes.
The upper end face of the base sound box is provided with a connecting seat, and a connecting hole 11 is formed in the connecting seat. The upper end face and the lower end face of the columnar sound box are respectively provided with an auxiliary connecting seat, and an auxiliary connecting hole is formed in the auxiliary connecting seat.
The two side surfaces of the base sound box and the cylindrical sound box are respectively provided with a handle seat 8, and two sides of the handle seat 8 are respectively provided with a handle connecting plate 10. A handle 9 is transversely connected between the two handle connecting seats. The handle seat, the handle connecting plate and the handle are connected together through bolts, and the handle seat, the handle connecting plate and the handle are all made of aluminum alloy materials.
it is entirely possible that the first line array speaker and the second line array speaker are used individually or in combination. When the two linear array sound boxes are installed and spliced, the plate type connecting piece is used for connection. And 8 corners of the side surface of the first shell of the first linear array sound box are respectively provided with a connecting hole, and 8 corners of the side surface of the second shell of the second linear array sound box are respectively provided with a connecting hole. And the first linear array sound box and the second linear array sound box are connected together through a plate-type connecting piece between two adjacent connecting holes. The plate type connecting piece comprises a connecting plate 26, a group of connecting through holes 27 are respectively arranged at four corners of the connecting plate 26, and the area of each connecting through hole is not smaller than that of each connecting hole. The connecting plate is provided with four connecting columns 28, the connecting columns are respectively connected with connecting columns 30 through connecting lines 29, and the connecting columns are inserted between the connecting through holes and the connecting holes to be fixed.
the utility model relates to a rationally, adopt tower arrangement's mode, easy to assemble and dismantlement have alleviateed the work load of equipment, and are convenient to operate.
the utility model provides a base audio amplifier, cylindricality audio amplifier all are provided with control chip, and such design has guaranteed that base audio amplifier and cylindricality audio amplifier can make up the use, also can the exclusive use.
the utility model discloses control chip and the design of a plurality of interfaces can guarantee that the audio amplifier has 5 at least well mode, and the use of audio amplifier can be guaranteed in the design of many mode.
The number of the original sub-mounting seats is three, the die sinking and splicing cost of the three parts is high, the process is complex, the mounting difficulty is high, and the tone color can not be fully ensured. The utility model discloses creative use two branch mount pads, two structures that divide the mount pad are the same, only need the die sinking once, the concatenation once can. Just the utility model provides a be provided with the inner chamber of compriseing two first outer walls and two second outer walls in the branch mount pad, the inner chamber is the matte, and such design has guaranteed that the sound reflection is even, guarantees the tone quality.
The utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongings the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. the tower type vertical linear array active sound box comprises a base sound box and two linear array sound boxes arranged on the base sound box;
The method is characterized in that:
the base loudspeaker box comprises a shell, a front cavity and a rear cavity are arranged in the shell, and the front cavity and the rear cavity are separated by a partition plate; the front surface of the shell corresponding to the front cavity is provided with a sound returning hole, and a bass loudspeaker is arranged in the front cavity; the front end surface of the shell is in a conical design;
The linear array loudspeaker box comprises a first linear array loudspeaker box and a second linear array loudspeaker box; the first linear array sound box comprises a first shell, and the front end surface of the first shell is in a conical design; the lower part in the first shell is provided with a plurality of bass units, the upper part is provided with a linear high-pitch horn, and the first shell is internally provided with power amplifier equipment; the second line array sound box comprises a second shell, and the front end face of the second shell is in a conical design; the upper part in the second shell is provided with a plurality of bass units, the lower part is provided with a linear high-pitch horn, and the second shell is internally provided with power amplifier equipment;
The base sound box is provided with a circuit board, and the circuit board is provided with a control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface;
A main control circuit board is arranged in each of the first linear array sound box and the second linear array sound box, and a main control chip, an analog signal input interface, an analog signal output interface, a network transmission interface, an external computer interface, a DSP input interface and a DSP input interface output interface are arranged on the main control circuit board; the power amplifier equipment is connected with all bass units, linear high pitch horns and woofers in the base loudspeaker box through connecting wires.
2. The tower-type vertical linear array active speaker of claim 1, wherein: the linear high pitch horn comprises a high pitch unit, a high pitch linear array waveguide horn arranged in the front of the high pitch unit and a diffusion horn connected with and communicated with the high pitch linear array waveguide horn; the treble linear array waveguide horn is made by two first and second sub treble horn with identical shapes assembled together.
3. The tower-type vertical linear array active speaker of claim 2, wherein: the first high-pitch horn comprises a first mounting semicircular plate arranged at the upper end and a first connecting long plate arranged at the lower end; the first mounting semicircular plate and the first connecting long plate are connected together through a first connecting plate; a first through hole is formed in the middle of the first connecting plate, a first raised quarter-sphere outer wall is arranged on one side of the first through hole, and a second raised quarter-sphere outer wall is arranged on the other side of the through hole; the first outer wall and the second outer wall are distributed in central symmetry;
the second high-pitch horn comprises a second mounting semicircular plate arranged at the upper end and a second connecting long plate arranged at the lower end; the second mounting semicircular plate and the second connecting long plate are connected together through a second connecting plate; a second through hole is formed in the middle of the second connecting plate, a third raised quarter-sphere outer wall is arranged on one side of the second through hole, and a fourth raised quarter-sphere outer wall is arranged on the other side of the through hole; the third outer wall and the fourth outer wall are distributed in central symmetry;
The high pitch linear array waveguide horn is formed by combining and splicing a first high pitch horn and a second high pitch horn; when the assembly is carried out, the first high-pitch horn is in the forward direction, and the second high-pitch horn is in the reverse direction.
4. The tower-type vertical linear array active speaker of claim 3, wherein: the concave surfaces of the second inner wall and the fourth inner wall are provided with 1-6 waveguide plates which are arranged in parallel.
5. The tower-type vertical linear array active speaker of claim 4, wherein: the upper end surface of the base sound box is provided with a connecting seat, and a connecting hole is formed in the connecting seat; the upper end face and the lower end face of the columnar sound box are respectively provided with an auxiliary connecting seat, and an auxiliary connecting hole is formed in the auxiliary connecting seat.
6. The tower-type vertical linear array active speaker of claim 5, wherein: the two side surfaces of the base sound box and the cylindrical sound box are respectively provided with a handle seat, and two sides of the handle seat are respectively provided with a handle connecting plate; a handle is transversely connected between the two handle connecting seats; the handle seat, the handle connecting plate and the handle are connected together through bolts, and the handle seat, the handle connecting plate and the handle are all made of aluminum alloy materials.
7. The tower-type vertical linear array active speaker of claim 6, wherein: 8 corners of the side face of the first shell of the first linear array sound box are respectively provided with a connecting hole, and 8 corners of the side face of the second shell of the second linear array sound box are respectively provided with a connecting hole; two adjacent connecting holes on the first linear array sound box and the second linear array sound box are connected together through a plate type connecting piece; the plate-type connecting piece comprises a connecting plate, four corners of the connecting plate are respectively provided with a group of connecting through holes, and the area of each connecting through hole is not smaller than that of each connecting hole; the connecting plate is provided with four connecting columns, the connecting columns are respectively connected with inserting columns through connecting lines, and the inserting columns are inserted between the connecting through holes and the connecting holes to realize fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961550.8U CN209787412U (en) | 2019-06-24 | 2019-06-24 | Tower type vertical linear array active sound box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920961550.8U CN209787412U (en) | 2019-06-24 | 2019-06-24 | Tower type vertical linear array active sound box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209787412U true CN209787412U (en) | 2019-12-13 |
Family
ID=68789074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920961550.8U Active CN209787412U (en) | 2019-06-24 | 2019-06-24 | Tower type vertical linear array active sound box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209787412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191394A (en) * | 2019-06-24 | 2019-08-30 | 江苏乐道科技有限公司 | Tower vertical linear arrays active audio amplifier |
-
2019
- 2019-06-24 CN CN201920961550.8U patent/CN209787412U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191394A (en) * | 2019-06-24 | 2019-08-30 | 江苏乐道科技有限公司 | Tower vertical linear arrays active audio amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4923031A (en) | High output loudspeaker system | |
| US3918551A (en) | Speaker system | |
| CN209787412U (en) | Tower type vertical linear array active sound box | |
| CN204168461U (en) | Loud speaker | |
| KR20150016505A (en) | Horn type multi-point excitation loudspeaker case | |
| CN105072520B (en) | Cambered surface screen high-fidelity combination sound box | |
| KR200387458Y1 (en) | Line-Array Speaker Horn | |
| CN215682558U (en) | Linear array type sound box convenient for adjusting beam pointing direction | |
| CN110719560A (en) | Sound amplifying device | |
| CN110191394A (en) | Tower vertical linear arrays active audio amplifier | |
| CN211831060U (en) | Linear array audio amplifier of high pitch | |
| CN217445503U (en) | Sound box with multi-sound-cavity structure | |
| CN216217420U (en) | Coaxial sound box | |
| CN201504308U (en) | Portable stereophonic sound | |
| CN220874672U (en) | Multi-sound-beam active array sound box | |
| CN209949387U (en) | Sound box enabling sound to be transmitted farther | |
| CN218772384U (en) | Interactive sound cavity of sound box | |
| CN210670551U (en) | Novel planar array loudspeaker | |
| CN220965083U (en) | Array speaker and audio surface net integrated sound box | |
| CN111131963A (en) | Audio playing device | |
| CN209134591U (en) | A kind of sound column loudspeaker box combination structure | |
| CN219960762U (en) | Three frequency division coaxial line array loudspeaker box | |
| CN216600053U (en) | Horizontal dumbbell type sound box | |
| CN201163815Y (en) | Novel high pitch loudspeaker | |
| CN218387859U (en) | Sound box baffle plate compression device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |