JPH062390Y2 - Low range enhanced loudspeaker - Google Patents
Low range enhanced loudspeakerInfo
- Publication number
- JPH062390Y2 JPH062390Y2 JP6530785U JP6530785U JPH062390Y2 JP H062390 Y2 JPH062390 Y2 JP H062390Y2 JP 6530785 U JP6530785 U JP 6530785U JP 6530785 U JP6530785 U JP 6530785U JP H062390 Y2 JPH062390 Y2 JP H062390Y2
- Authority
- JP
- Japan
- Prior art keywords
- power amplifier
- speaker
- output terminal
- range
- bass
- 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 - Lifetime
Links
Description
【考案の詳細な説明】 考案の目的： ［産業上の利用分野］ この考案は低音域を拡張して増強する低音域増強型拡声
装置に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the invention: [Industrial field of application] The present invention relates to a bass-range-enhanced loudspeaker that expands and enhances the bass range.
［従来技術］ 第２図はオーディオの分野において用されている低音域
増強型拡声装置のブロック図を示す。この低音域増強型
拡声装置は，ＳＥＰＰ−ＯＴＬ方式の回路を備えた増幅
器１とスピーカシステム３とを接続する拡声装置に、更
に、２組のＳＥＰＰ−ＯＴＬ回路２ａ，２ｂを逆相で駆
動し、それぞれの出力点間に低音用のスピーカシステム
４を接続する方式の所謂ＢＴＬ回路方式の拡声装置を追
加して、低音域の拡張を図ったものである。[Prior Art] FIG. 2 is a block diagram of a low-range-enhancement type loudspeaker used in the audio field. This bass-enhancement type loudspeaker is a loudspeaker that connects an amplifier 1 equipped with a SEPP-OTL system circuit and a speaker system 3 and further drives two sets of SEPP-OTL circuits 2a and 2b in reverse phase. The bass range is expanded by adding a so-called BTL circuit type loudspeaker system in which the bass speaker system 4 is connected between the respective output points.
［考案が解決しようとする問題点］ このような従来の低音域増強型拡声装置は、低音域の拡
張を計り得るが、２台の増幅器１，２を必要とし、観点
を換れば、３台のＳＥＰＰ−ＯＴＬ回路方式の増幅器
１，２ａ，２ｂを必要とすることになり高価なものとな
る。延いては、一般大衆向けのものとなり難い欠点があ
った。[Problems to be Solved by the Invention] Although such a conventional bass-range-enhanced loudspeaker can extend the bass range, it requires two amplifiers 1 and 2, and from the viewpoint, it is 3 This requires the SEPP-OTL circuit type amplifiers 1, 2a and 2b, which is expensive. In the end, it had the drawback that it was difficult to reach the general public.
この考案は叙上の点に鑑みてなされたものであって、安
価に低音域を拡張でき、しかも低音域を増強できる低音
域増強型拡声装置を提供せんとしてなされたものであ
る。The present invention has been made in view of the above points, and was made as an attempt to provide a bass-range-enhanced loudspeaker that can inexpensively expand the bass range and can enhance the bass range.
考案の構成： この考案は、第１図のブロック図で示すごとく、モノラ
ル信号又はステレオ信号のＬチャンネル若しくはＲチャ
ンネルの入力信号の低周波成分を増幅する低周波帯域増
幅器１０と当該低周波帯域増幅器１０の出力を電力増幅
する第１電力増幅器２１と、前記低周波帯域増幅器１０
の出力の位相を反転する位相反転器２３と当該位相反転
器２３出力を電力増幅する第２電力増幅器２２と前記第
１電力増幅器２１出力端に接続された第１出力端子２１
ａ（ホット側端子）と前記第２電力増幅器２２出力端に
接続された第２出力端子２２ａ（ホット側端子）を有す
る増幅装置２０と、低音用スピーカ３２と中高音用スピ
ーカ３１とを有するスピーカ装置３０を具備し、前記中
高音用スピーカ３１の一方の入力端が前記第１出力端子
２１ａに、他方の入力端がアース２１ｂにそれぞれ接続
されており、前記低音用スピーカ３２の一方の入力端が
前記第１出力端子２１ａに、他方の入力端が前記第２出
力端子２２ａにそれぞれ接続されている低音域増強型拡
声装置である。Configuration of the Invention: As shown in the block diagram of FIG. 1, the invention is a low frequency band amplifier 10 for amplifying a low frequency component of an L channel or R channel input signal of a monaural signal or a stereo signal, and the low frequency band amplifier. A first power amplifier 21 for power amplifying the output of 10 and the low frequency band amplifier 10
A phase inverter 23 for inverting the phase of the output of the second power amplifier, a second power amplifier 22 for power amplifying the output of the phase inverter 23, and a first output terminal 21 connected to the output terminal of the first power amplifier 21.
A speaker having an amplification device 20 having a (hot side terminal) and a second output terminal 22a (hot side terminal) connected to the output terminal of the second power amplifier 22, a speaker for low-pitched sound 32, and a speaker 31 for mid-high range. A device 30 is provided, one input end of the speaker 31 for middle and high frequencies is connected to the first output terminal 21a, and the other input end is connected to the ground 21b, and one input end of the speaker 32 for low tone is provided. Is a bass-range-enhanced loudspeaker that is connected to the first output terminal 21a and the other input end to the second output terminal 22a, respectively.
［実施例］ 第１図はこの考案の実施例の回路ブロック図を示す。第
１図において、低周波帯域増幅器１０は演算増幅器Ａ１
の帰還抵抗に固定抵抗Ｒ３と可変抵抗ＶＲ１を用いて、
この可変抵抗ＶＲ１の中点とアース間にコンデンサＣ１
と半導体インダクタンスＬ及び抵抗Ｒ４との直列接続か
らなるインピーダンス素子を接続して低域の或る所定の
帯域の増幅度を可変できるようにしてある。スピーカ装
置３０は中高音用スピーカ３１と低音用スピーカ３２を
含むものである。第１電力増幅器２１と第２電力増幅器
２２とは入力間で正相、または逆相の電力増幅器であっ
て、第２電力増幅器２２を通る入力信号は位相反転器２
３によって位相が１８０度反転することになる。尚、第
１電力増幅器２１の入出力間が正相で、第２電力増幅器
２２の入出力間が逆相の場合は、位相反転器２３が第２
電力増幅器２２に含まれたことになる。[Embodiment] FIG. 1 shows a circuit block diagram of an embodiment of the present invention. In FIG. 1, the low frequency band amplifier 10 is an operational amplifier A1.
Using a fixed resistor R3 and a variable resistor VR1 as the feedback resistor of
A capacitor C1 is placed between the midpoint of this variable resistor VR1 and ground.
By connecting an impedance element consisting of a semiconductor inductance L and a resistor R4 connected in series, the amplification factor in a certain low band can be varied. The speaker device 30 includes a mid-high range speaker 31 and a low-range speaker 32. The first power amplifier 21 and the second power amplifier 22 are positive-phase or negative-phase power amplifiers between the inputs, and the input signal passing through the second power amplifier 22 is the phase inverter 2
By 3, the phase is inverted by 180 degrees. When the input and output of the first power amplifier 21 are in the positive phase and the input and output of the second power amplifier 22 are in the opposite phase, the phase inverter 23 outputs the second phase.
It is included in the power amplifier 22.
そして、中高音用スピーカ３１の一方の入力端（＋）が
第１出力端子２１ａ（ホット側端子）に他方の入力端
（−）が第１電力増幅器２１のアース側端子２１ｂにそ
れぞれ接続されており、低音用スピーカ３２の一方の入
力端（＋）が第１出力端子２１ａ（ホット側端子）に、
他方の入力端（−）が第２出力端子２２ａ（ホット側端
子）にそれぞれ接続されている。Then, one input end (+) of the mid-high range speaker 31 is connected to the first output terminal 21a (hot side terminal), and the other input end (-) is connected to the ground side terminal 21b of the first power amplifier 21, respectively. And one input end (+) of the bass speaker 32 is connected to the first output terminal 21a (hot side terminal),
The other input terminal (-) is connected to the second output terminal 22a (hot side terminal), respectively.
このようなこの考案の実施例の低音増強型拡声装置は、
低周波帯域増幅器１０により低音域を増強でき、しかも
第１電力増幅器２１の第１出力端子２１ａと第２電力増
幅器２２の第２出力端子２２ａ間の出力が低音用スピー
カ３２に供給されるので低音域を増強できる。The bass-enhanced loudspeaker according to the embodiment of the present invention is
The low frequency band amplifier 10 can enhance the bass range, and the output between the first output terminal 21a of the first power amplifier 21 and the second output terminal 22a of the second power amplifier 22 is supplied to the bass speaker 32. The range can be enhanced.
考案の効果： この考案の低音域増強型拡声装置は、低音域を拡張及び
増強できると共に、中高音用スピーカ３１、低音用スピ
ーカ３２を駆動する増幅器としてＳＥＰＰ−ＯＴＬ回路
方式のものが２台分で足りることになり、安価なものと
なる。Effect of the Invention: The low-range-enhancement type loudspeaker of the present invention is capable of extending and enhancing the low-range, and has two SEPP-OTL circuit type amplifiers for driving the mid-high range speaker 31 and the low-range speaker 32. Will be enough, and it will be cheap.
第１図はこの考案を説明するブロック図、第２図は従来
例を説明するブロック図、である。 １０…低周波帯域増幅器、２０…電力増幅装置、２１…
第１電力増幅器、２２…第２電力増幅器、２３…位相反
転器、３０…スピーカ装置、３１…中高音用スピーカ、
３２…低音用スピーカ。FIG. 1 is a block diagram for explaining the present invention, and FIG. 2 is a block diagram for explaining a conventional example. 10 ... Low frequency band amplifier, 20 ... Power amplification device, 21 ...
First power amplifier, 22 ... Second power amplifier, 23 ... Phase inverter, 30 ... Speaker device, 31 ... Mid-high range speaker,
32 ... Low-pitched speaker.
Claims (1)
端子に接続され前記入力信号の低周波信号成分を増幅す
る低周波帯域増幅器（１０）と当該低周波帯域増幅器
（１０）に接続された第１電力増幅器（２１）と前記低
周波帯域増幅器（１０）出力に接続された位相反転器
（２３）と当該位相反転器（２３）に接続された第２電
力増幅器（２２）と前記第１電力増幅器（２１）出力端
に接続された第１出力端子（２１ａ）と前記第２電力増
幅器（２２）出力端に接続された第２出力端子（２２
ａ）とを有する電力増幅装置（２０）と、低音用スピー
カ（３２）と中高音用スピーカ（３１）とを有するスピ
ーカ装置（３０）を具備し、前記中高音用スピーカ（３
１）の一方の入力端が前記第１出力端子（２１ａ）に他
方の入力端がアースにそれぞれ接続されており、前記低
音用スピーカ（３２）の一方の入力端が前記第１出力端
子（２１ａ）に他方の入力端が前記第２出力端子（２２
ａ）にそれぞれ接続されていることを特徴とする低音域
増強型拡声装置。1. An input terminal to which an input signal is applied, a low frequency band amplifier (10) connected to the input terminal and amplifying a low frequency signal component of the input signal, and the low frequency band amplifier (10). A first power amplifier (21), a phase inverter (23) connected to the output of the low frequency band amplifier (10), a second power amplifier (22) connected to the phase inverter (23), and the second power amplifier (22). A first output terminal (21a) connected to the output end of the first power amplifier (21) and a second output terminal (22 connected to the output end of the second power amplifier (22).
a), and a speaker device (30) having a low-frequency speaker (32) and a mid-high range speaker (31).
1) One input end is connected to the first output terminal (21a) and the other input end is connected to the ground, respectively, and one input end of the bass speaker (32) is connected to the first output terminal (21a). ) Has the other input end connected to the second output terminal (22
A bass-range-enhanced loudspeaker, which is connected to each of a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530785U JPH062390Y2 (en) | 1985-04-30 | 1985-04-30 | Low range enhanced loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6530785U JPH062390Y2 (en) | 1985-04-30 | 1985-04-30 | Low range enhanced loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61182191U JPS61182191U (en) | 1986-11-13 |
| JPH062390Y2 true JPH062390Y2 (en) | 1994-01-19 |
Family
ID=30597190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6530785U Expired - Lifetime JPH062390Y2 (en) | 1985-04-30 | 1985-04-30 | Low range enhanced loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH062390Y2 (en) |
-
1985
- 1985-04-30 JP JP6530785U patent/JPH062390Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61182191U (en) | 1986-11-13 |
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