关于OTL功放的思考

adagio1793

OTL功放可以取消输出牛,但扬声器阻抗在8欧,因此OTL往往效率很低,且需要输出管的并联,单声道用5对管的推挽都有,为了几瓦的输出,整机变取暖器了.
      我们不得不回头研究输出牛.我提出个设想,如果扬声器阻抗是600欧,那么OTL就容易了,是吗?扬声器的线圈能否改变呢,当然改变后,会改变原有参数,但经过输出牛耦合也会失真的.如果为扬声器换个线圈,用更细的线圈,必然会带来更多匝数更高阻抗,而且线圈绕制不会比输出牛更难的.我准备去尝试一下,找对百来元的单元试一下.请大侠发言.

6l6gc

神使

以下是引用家家乐在2006-1-13 18:25:00的发言：
前辈们已经失败过，你还想再进死胡同？

古代没有6C33之类的低阻管子。

家家乐

前辈们已经失败过，你还想再进死胡同？

qongtou

qongtou

<img src="attachments/dvbbs/2006-1/2006120233923644.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-1/2006120233923644.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

qongtou

如是好图就上，毕竞比用输出牛节省一大堆米。<img src="attachments/dvbbs/2006-1/2006120233234822.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2006-1/2006120233234822.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

liucheng1210

前进吧,哥们