Hello,
can anyone else confirm this?
When running the board at 12V from the battery, the output to the woofer is a a bit stronger than on the 21V PSU - about 4 dB while other outputs seem effected only by 1 dB (also tested with a SPL meter).
Could anyone test if this on their own board?
Board: TPA3116D2 from aliexpress
Subwoofer driver: Dayton audio SD215a-88 wired in parallel with it's 2 coils (for some reason the official site redirects to parts express so here is the link from where I bought it from)
mids/high tones drivers(2): Visaton FR10 HM 8 ohm
Dayton is on a mono channel while the visatons are on L/R channels.
Amp has 3 outputs.
Expected FR simulation:
can anyone else confirm this?
When running the board at 12V from the battery, the output to the woofer is a a bit stronger than on the 21V PSU - about 4 dB while other outputs seem effected only by 1 dB (also tested with a SPL meter).
Could anyone test if this on their own board?
Board: TPA3116D2 from aliexpress
Subwoofer driver: Dayton audio SD215a-88 wired in parallel with it's 2 coils (for some reason the official site redirects to parts express so here is the link from where I bought it from)
mids/high tones drivers(2): Visaton FR10 HM 8 ohm
Dayton is on a mono channel while the visatons are on L/R channels.
Amp has 3 outputs.
Expected FR simulation: