- 积分
 - 28
 
- 在线时间
 - 2 小时
 
- 最后登录
 - 2019-11-23
 
- 阅读权限
 - 40
 
- 精华
 - 0
 
 
 
 
 
  
- UID
 - 869044
 
- 帖子
 - 27
 
- 精华
 - 0
 
- 经验
 - 28 点
 
- 金钱
 - 26 ¥
 
- 注册时间
 - 2019-11-15
 
             
                            
 
 | 
Try connecting a 1/8” stereo jack as follows: Tip (left) to pins 3 and 5 Ring (right) to pins 1 and 9 Ground (sleeve) to pin 13 
Also, I used a 10K pot to limit the sub, although this didn't work as I expected. I connected the left audio channel to pin 3 of the pot, pin 1 of the pot to ground, and pin 2 of the pot (middle pin) to pin 2 
of the DB15. 
And finally, ground pins 6,7 & 8 to ground (pin 13). The center channel is unused. Tweak the pot until the bass sounds right. Note that the sub will suck  
power out of one of the channels and I haven't bothered to figure out why. 
When you are done soldering (I did all of this inside the sub box, drilling 1/4" and 3/8" holes for the 
audio jack and pot), hot glue everything so that the sub woofer doesn't shake it loose. I do not know what pins 11 and 12 are. They have 100 ohm impedence to ground and a DC offset of 
0.140 mV. Remember that there is no volume control on this, so when you are testing it, start low. Do no use "line-out" to drive this, use the head-phone out so that you have volume control on your iPod or 
whatever. I connected the 3 "enable" pins to ground and it worked for, ie the amp went from standby/idle mode 
with zero output to a decent output level. |   
 
 
 
 |