CN2542013Y - Double-track loudspeaker box - Google Patents
Double-track loudspeaker box Download PDFInfo
- Publication number
- CN2542013Y CN2542013Y CN 01271177 CN01271177U CN2542013Y CN 2542013 Y CN2542013 Y CN 2542013Y CN 01271177 CN01271177 CN 01271177 CN 01271177 U CN01271177 U CN 01271177U CN 2542013 Y CN2542013 Y CN 2542013Y
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- China
- Prior art keywords
- loud speaker
- power amplifier
- casing
- space
- utility
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a dual sound channel sound box for the computer multimedia, comprising a left and a right boxes, and is characterized in that a loudspeaker and a power amplifying circuit are arranged in one box, the loudspeaker is arranged in the other box, the two space for the loudspeakers to be arranged in is consistent in shapes and sizes in the two boxes and is independent from the space which is for the power amplifying circuit to be arranged in, therefore, the sounding balance of a left and a right sound channels is enhanced. A pitch trimming circuit of the sound box is further simplified by the utility model.
Description
Technical field
The utility model relates to a kind of two sound channel audio amplifiers.
Background technology
Along with the development of Computer Multimedia Technology, and people are to improving constantly that the acoustics of computer media audio amplifier requires, and the cabinet design of the audio amplifier that matches with it requires also to improve constantly.Two present sound channel sound box systems, casing is generally less, also power amplifier is designed in main sound box for saving cost, causes the volume that loud speaker is occupied in two audio amplifiers not wait, and left and right acoustic channels sounding imbalance causes space orientation inaccurate, no stereovision.The low-frequency effect of in addition little casing audio amplifier is because the restriction of casing size can not design very low frequency, and low cut is serious, need compensate low frequency, and existing complex circuit designs, device is many, be difficult to regulate, therefore need simplify, do not lose its function again circuit.
Summary of the invention
A purpose of the present utility model is that another purpose is to simplify the tone control circuit of this two sound channels audio amplifier circuit by the internal structure of two sound channel audio amplifiers is improved the balance that improves the left and right acoustic channels sounding.
Two casings about comprising according to one of the present utility model this two sound channels audio amplifier that the aspect provided, be placed with loud speaker and power amplifier in one of them casing, be placed with loud speaker in another casing, in the casing of left and right sides audio amplifier, inside is placed with spatial form, the size unanimity of loud speaker and is independent of the space that inside is placed with power amplifier.
Comprise that according to a kind of two sound channel audio amplifiers that provided on the other hand of the present utility model the bass and the high pitch that are used for this audio amplifier carry out the tone control circuit that tone is regulated, its circuit as shown in Figure 3.
Below with reference to accompanying drawing, adopt the form of embodiment, above-mentioned aspect of the present utility model and others are described in detail.
Description of drawings
Figure 1 shows that internal structure according to two casings of the two sound channel audio amplifiers of the utility model one embodiment.
Figure 2 shows that the circuit diagram of tone control circuit of the prior art.
Figure 3 shows that circuit diagram according to tone control circuit of the present utility model.
Embodiment
With reference now to Fig. 1, an embodiment of the present utility model is described.
Figure 1 shows that internal structure according to two casings of the two sound channel audio amplifiers of this embodiment of the utility model.In Fig. 1, label 1a, 1b are two casings of this audio amplifier, and label 2 is a loud speaker, and label 3 is a power amplifier.In this embodiment, this audio amplifier is designed to double-decker.Loud speaker is positioned at the last sheaf space of two casings, and power amplifier then is placed in the lower layer space of one of them casing 1b.The shape of the last sheaf space of these two casings, big or small identical.Thereby, make the tonequality left and right sides balance of audio amplifier with regard to having overcome in the prior art owing to the unbalanced shortcoming of left and right acoustic channels sounding that causes is not waited in the space that loud speaker occupied.The structure of this audio amplifier is not limited to double-decker up and down shown in Figure 1, and it can be to make independently other structure of speaker volume, thereby loud speaker also is not limited to be positioned at this double-deck sheaf space of going up.
Below with reference to Fig. 2 and Fig. 3 another embodiment of the present utility model is described.Figure 2 shows that the circuit diagram of tone control circuit of the prior art.In this circuit, the circuit element of use is many, totally seven resistance and four electric capacity, circuit more complicated.For solving many, the baroque problems of tone control circuit element in the existing casing, present embodiment is simplified this tone control circuit, one end of this tone control circuit is connected to outside sound source, and the other end is connected to loud speaker by power amplifier, and its circuit diagram as shown in Figure 3.In Fig. 3, this tone control circuit comprises two resistance and two electric capacity, and wherein, a resistance is in parallel after this two capacitances in series with wherein, and two parallel connected end are respectively output and input, and an end of another resistance links to each other other end ground connection with the end that is connected in series of two electric capacity.This circuit can be in small box, cooperate the design of casing, reach the purpose that high pitch and bass are carried out tone control, and its simplicity of design has only been used two resistance and two electric capacity, and the distortion of introducing is little, the side effect that produces is little, therefore, it can guarantee that small box obtains good bass effect in conjunction with the structure of the utility model balance left and right sides sound.
In another preferred embodiment of the present utility model, the tone control circuit and the power amplifier of this circuit reduction can be arranged in the same casing, and make shape, the size of the speaker volume in two casings consistent and be independent of the space of this power amplifier and tone controller.Thus, the tonequality left and right sides balance of audio amplifier can either be guaranteed, the purpose of simplifying circuit can be reached again.
Be described in the mode of specific embodiment though should be appreciated that the utility model, be not limited to described specific embodiment, also comprise the possible modification and the change that are not separated with principle of the present utility model and spirit.Core concept of the present utility model is exactly to realize the balance of left and right acoustic channels, and guarantees the good bass effect of small box.
Claims (3)
1. sound channel audio amplifier, two casings about it comprises, be placed with loud speaker and power amplifier in one of them casing, be placed with loud speaker in another casing, it is characterized in that: be placed with spatial form, the size unanimity of loud speaker in these two casings and be independent of the space of placing power amplifier.
2. two sound channel audio amplifiers according to claim 1, described two casings are double-decker, and loud speaker places sheaf space, and power amplifier places lower layer space.
3. two sound channel audio amplifiers according to claim 1, in including the casing of power amplifier, also have tone control circuit, an end of this tone control circuit is connected with outside sound source, and the other end is connected with loud speaker by this power amplifier, it comprises two resistance and two electric capacity, wherein, a resistance is in parallel after this two capacitances in series with wherein, and two parallel connected end are respectively output and input, the end that is connected in series between one end of another resistance and two electric capacity is connected other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271177 CN2542013Y (en) | 2001-11-22 | 2001-11-22 | Double-track loudspeaker box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01271177 CN2542013Y (en) | 2001-11-22 | 2001-11-22 | Double-track loudspeaker box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2542013Y true CN2542013Y (en) | 2003-03-26 |
Family
ID=33676664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01271177 Expired - Fee Related CN2542013Y (en) | 2001-11-22 | 2001-11-22 | Double-track loudspeaker box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2542013Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358136A (en) * | 2016-11-22 | 2017-01-25 | 郑州搜趣信息技术有限公司 | Stereo balancing control circuit |
-
2001
- 2001-11-22 CN CN 01271177 patent/CN2542013Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358136A (en) * | 2016-11-22 | 2017-01-25 | 郑州搜趣信息技术有限公司 | Stereo balancing control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |