JPH0167822U - - Google Patents
Info
- Publication number
- JPH0167822U JPH0167822U JP1987163045U JP16304587U JPH0167822U JP H0167822 U JPH0167822 U JP H0167822U JP 1987163045 U JP1987163045 U JP 1987163045U JP 16304587 U JP16304587 U JP 16304587U JP H0167822 U JPH0167822 U JP H0167822U
- Authority
- JP
- Japan
- Prior art keywords
- filter circuit
- selects
- amplifier
- frequency characteristic
- switching operation
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Networks Using Active Elements (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は第１図の実施例の周波数特性を示す図、第３
図はフイルタ回路の動作説明のための特性図、第
４図は従来例の周波数特性図である。
５……重低音用アンプ、８……バンドパスアク
テイブフイルタ回路、１２〜１５……第１〜第４
抵抗、１６〜１９……第１〜第４コンデンサ、２
０……切換回路。
Fig. 1 is a block diagram of an embodiment of the present invention;
The diagrams show the frequency characteristics of the embodiment in Figure 1, and Figure 3 shows the frequency characteristics of the embodiment in Figure 1.
The figure is a characteristic diagram for explaining the operation of the filter circuit, and FIG. 4 is a frequency characteristic diagram of a conventional example. 5... Deep bass amplifier, 8... Bandpass active filter circuit, 12-15... 1st to 4th
Resistance, 16 to 19...1st to 4th capacitor, 2
0...Switching circuit.
Claims (1)
れた重低音の信号を増幅出力する重低音用アンプ
において、 前記フイルタ回路は、複数通りの周波数特性に
それぞれ対応する複数の素子と、切換操作に応じ
て前記複数の素子を切換選択して周波数特性を設
定する切換回路とを備え、 前記切換操作によつて前記フイルタ回路の周波
数特性を可変することを特徴とする重低音用アン
プ。[Claims for Utility Model Registration] A deep bass amplifier that includes a filter circuit and amplifies and outputs a deep bass signal separated by the filter circuit, wherein the filter circuit includes a plurality of bass signals each corresponding to a plurality of frequency characteristics. and a switching circuit that selects and selects the plurality of elements according to a switching operation to set a frequency characteristic, and the frequency characteristic of the filter circuit is varied by the switching operation. amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163045U JPH0167822U (en) | 1987-10-23 | 1987-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987163045U JPH0167822U (en) | 1987-10-23 | 1987-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0167822U true JPH0167822U (en) | 1989-05-01 |
Family
ID=31447418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987163045U Pending JPH0167822U (en) | 1987-10-23 | 1987-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0167822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0334394U (en) * | 1989-08-11 | 1991-04-04 |
-
1987
- 1987-10-23 JP JP1987163045U patent/JPH0167822U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0334394U (en) * | 1989-08-11 | 1991-04-04 |
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