CN2696254Y - Multifunctional broadcast audio power amplifier - Google Patents
Multifunctional broadcast audio power amplifier Download PDFInfo
- Publication number
- CN2696254Y CN2696254Y CN 200420045228 CN200420045228U CN2696254Y CN 2696254 Y CN2696254 Y CN 2696254Y CN 200420045228 CN200420045228 CN 200420045228 CN 200420045228 U CN200420045228 U CN 200420045228U CN 2696254 Y CN2696254 Y CN 2696254Y
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- output
- signal input
- predriver
- dvd
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a broadcast equipment, in particular to a multifunctional audio power amplifier, conprising a power circuit, a signal input device, a preposed driver, a power amplifier, and a tone and volume actuating device. The signal input device is connected with the input terminal of the power amplifier through the preposed driver, and the output of the power amplifier is the output of high resistance and constant pressure and the output of low resistance. The utility model is characterized in that the signal input device is provided with a DVD playing device, and the output terminal of the DVD playing device is connected with the input terminal of the preposed driver. The DVD playing device is arranged on the panel (13) of the audio power amplifier. The audio power amplifier has the advantages of better tone quality, more supply of goods and supply of program, portability, without damp-affecting and deterioration, low failure rate, enjoying image simultaneously, etc. The utility model make the wired broadcasting to be upgraded to the higher grade, and is the progressive direction of the wired broadcasting system in the further.
Description
Technical field:
The utility model relates to a kind of broadcasting equipment, specifically is the multi-functional broadcast loud-speaker of a kind of DVD of containing or VCD, CD playing device.
Background technology:
Existing broadcast loud-speaker, mainly form by signal input apparatus, predriver, power amplifier and tonal volume adjusting device etc., signal input apparatus generally also is provided with cartridge playback set etc. except that microphone input, broadcast receiver, circuit input unit.But the moisture-sensitive that has tape goes bad, is subject to, and magnetic field is removed, is difficult for keeping, is carried inconvenience, price is higher, tonequality is relatively poor, the source of goods and shortcomings such as program is few, failure rate height.
Summary of the invention:
The purpose of this utility model is to overcome the shortcoming of existing broadcast loud-speaker, provides a kind of tonequality multi-functional broadcast loud-speaker preferable, easy to carry.
The realization of the utility model purpose adopts DVD or VCD, CD to replace the cartridge playback.
The utility model, comprise power circuit, signal input apparatus, predriver, power amplifier and tonal volume adjusting device, signal input apparatus links to each other with the input of power amplifier by predriver, power amplifier is output as output of high resistant level pressure and low-resistance output, signal input apparatus comprises audio signal reception device, the microphone input, the circuit input, it is characterized by: signal input apparatus also comprises DVD or VCD, the CD playing device, DVD or VCD, the output of CD playing device is connected with the input of predriver, DVD or VCD, the CD playing device is installed on the panel of sound amplifier.
The utility model at the input of predriver, can be provided with the device that echoes.
The utility model at the output of described predriver, is provided with video output.
The utility model, because in signal input apparatus, adopt DVD or VCD, CD to replace the cartridge playback, except the function that possesses common broadcast loud-speaker, have also that tonequality is preferable, source of goods program source is more, easy to carry, can not become damp and rotten, failure rate is low, adopt DVD or VCD playing device also can appreciate advantages such as image simultaneously.What be provided with the device that echoes can also improve tonequality.The utility model will make wired broadcasting bring up to higher class, is the direction of wired broadcast system Future Development.
Description of drawings:
Fig. 1 is the functional-block diagram of embodiment, and Fig. 2 is the panel schematic diagram, and Fig. 3 is a back plate schematic diagram.
Among the figure, 1, DVD playing device 2, audio signal reception device 21, radio reception tuning knob 3, microphone input 31, microphone input jack 32, microphone input joint knob 4, circuit input 5, device 51 echoes, adjusting knob 61 echoes, function selection switch 7, tonal volume adjusting device 71, volume adjustment knob 72, tone adjusting knob 8, circuit output 81, antenna input jack 82, video output plughole 9, power amplifier 10, high resistant level pressure output 11, low-resistance output 12, power circuit 13, panel 14, back plate 15, fluorescence display 16, the selected songs storage.
Embodiment:
With reference to Fig. 1, this multi-functional broadcast loud-speaker, comprise power circuit 12, signal input apparatus, device 5 echoes, predriver 6, power amplifier 9 and tonal volume adjusting device 7, signal input apparatus links to each other with the input of power amplifier by predriver, the output of predriver 6 also comprises circuit output 8, video output 82, the output of power amplifier comprises output 10 of high resistant level pressure and low-resistance output 11, signal input apparatus comprises audio signal reception device 2, microphone input 3, circuit input 4 and DVD playing device 1, the output of DVD playing device is connected with the input of predriver, and the DVD playing device is installed on the panel 13 of sound amplifier.The panel of present embodiment, back plate setting such as Fig. 2, shown in Figure 3.
Claims (3)
1, a kind of multi-functional broadcast loud-speaker, comprise power circuit (12), signal input apparatus, predriver (6), power amplifier (9) and tonal volume adjusting device (7), signal input apparatus links to each other with the input of power amplifier by predriver, power amplifier is output as high resistant level pressure output (10) and low-resistance output (11), signal input apparatus comprises audio signal reception device (2), microphone input (3), circuit input (4), it is characterized by: signal input apparatus also comprises DVD or VCD, CD playing device (1), DVD or VCD, the output of CD playing device is connected with the input of predriver, DVD or VCD, the CD playing device is installed on the panel (13) of sound amplifier.
2, multi-functional broadcast loud-speaker according to claim 1 is characterized by: at the input of predriver, the device (5) that echoes is set.
3, multi-functional broadcast loud-speaker according to claim 1 is characterized by: at the output of described predriver, video output is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045228 CN2696254Y (en) | 2004-04-23 | 2004-04-23 | Multifunctional broadcast audio power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420045228 CN2696254Y (en) | 2004-04-23 | 2004-04-23 | Multifunctional broadcast audio power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2696254Y true CN2696254Y (en) | 2005-04-27 |
Family
ID=34775543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420045228 Expired - Fee Related CN2696254Y (en) | 2004-04-23 | 2004-04-23 | Multifunctional broadcast audio power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2696254Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702271A (en) * | 2013-12-13 | 2014-04-02 | 宁波中荣声学科技有限公司 | Amplifier back panel |
| CN105978651A (en) * | 2016-06-18 | 2016-09-28 | 广州市声讯电子科技有限公司 | Movable emergency broadcasting system |
-
2004
- 2004-04-23 CN CN 200420045228 patent/CN2696254Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702271A (en) * | 2013-12-13 | 2014-04-02 | 宁波中荣声学科技有限公司 | Amplifier back panel |
| CN103702271B (en) * | 2013-12-13 | 2017-06-30 | 宁波中荣声学科技有限公司 | A kind of amplifier back panel |
| CN105978651A (en) * | 2016-06-18 | 2016-09-28 | 广州市声讯电子科技有限公司 | Movable emergency broadcasting system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20120208481A1 (en) | Remotely controlling sound system in enclosure | |
| CN201084428Y (en) | An inlaid background music player | |
| CN2696254Y (en) | Multifunctional broadcast audio power amplifier | |
| CN201000742Y (en) | Music accompanying microphone | |
| CN205881462U (en) | On -vehicle audio player of intelligence | |
| CN102630067A (en) | Multimedia reproducing system and driving method thereof | |
| CN101950155B (en) | Multifunctional intelligent alarm clock sounding device | |
| CN215072826U (en) | Multichannel sound card live broadcast video equipment sound box | |
| CN2904520Y (en) | Loudspeaker structure | |
| CN207910790U (en) | A kind of intelligent broadcast control system | |
| CN1627364A (en) | Remote information processing terminal capable of controlling volumes at different audio frequency acoustic channels | |
| CN202068551U (en) | Decoding sound circuit | |
| CN205385606U (en) | Teaching is with multi -functional wireless megaphone | |
| KR200422312Y1 (en) | Electronic music album with FM transmitter | |
| CN1295103C (en) | Vehicular video-audio player | |
| CN2660591Y (en) | Automatic digital music USB device | |
| CN2752857Y (en) | Vehicular MP3 player | |
| CN2644227Y (en) | Digital audio apparatus for automobile | |
| CN202231864U (en) | Multi-functional combination audio | |
| CN2622977Y (en) | Broadcast public address receiver | |
| CN2710293Y (en) | Sound equipment of independent broadcast high middle low sound | |
| CN2754300Y (en) | Radiofrequency receiving type ceiling loudspeaker system acoustics | |
| CN200950661Y (en) | Built-up sound equipment | |
| CN2727906Y (en) | Vehicle mounted MP3 sound equipment | |
| CN201682544U (en) | Karaoke machine used on mobile terminal |
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 |