stereo to mono problem

Status
Not open for further replies.
Hello, i am trying to convert stereo into mono on my bluetooth amplifier/receiver, since i am using a woofer + tweeter setup. I included a picture of how i solder the pins together. Right now the pot is up to a maximum, which means the pins are effectively shorted together. I know ur supposed to use a resistor but i am looking for a max SPL, even if the amplifier dies after a few months. The amplifier chip itself is TPA3116D2. The amplifier board is ZK-502C hifi.

Problem 1: Even when the pins are shorted together, i get on average about 4-5dB less SPL than i would otherwise and i dont understand why since i am not using any resistors and pot doesnt offer any resistance.

Problem 2: When pins are shorted together, the speaker amplifier will shut down and restart if the pot is over 80% volume. This happens even if the speakers are not connected ! I am really wondering why.

Question: Is there any way to get around this since i need every single last dB i can get, so i cant lose even 1dB, let alone 3dB.
 

Attachments

  • IMG_1582.JPG
    361.1 KB · Views: 445
  • TPA3116D2-50W50W-Speaker-Audio-Amplifier-with-Filter-HIFI-Level-20-Stereo-bluetooth-Digital-P...jpeg
    361.1 KB · Views: 392
  • ZK-502C-HIFI-Wireless-Bluetooth-5-0-TPA3116-Digital-Power-Audio-Amplifier-board-TPA3116D2-50WX...jpg
    212.3 KB · Views: 380
1) Auto is an automobile? Or is auto for something that is automatic?
2) 2800Hz frequency cut if bass or a cut of treble frequencies?
3) What is the crossover frequency between the woofer and the tweeter?
 
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…