Hi all
I use a miniDSP in an AV setup and run 5 subs. All 7.1 channels are fed in to drive the subs (the output is sub only so all channels except LFE are fed direct as well so no DSP on anything other than subs)
My question is about the relatively low levels of signal in and the best way to manage trim and the 10db difference between the LFE and mains
I have simply cut all the 7 channels on the way in by 10db or near and then all the subs are aligned to work as a group and I add the missing bass to each channel
I now realise that the level when playing loud (105db peaks on music more on film) is only 190mV when feeding in 1V to a channel ( I know CD is circa 2V on peaks but used 1V to see what's going on) so my thinking is perhaps better to boost the LFE not cut the input to the 7 channels or everything happening in the DSP is at a lower voltage and possibly SNR ?
Any thoughts
I use a miniDSP in an AV setup and run 5 subs. All 7.1 channels are fed in to drive the subs (the output is sub only so all channels except LFE are fed direct as well so no DSP on anything other than subs)
My question is about the relatively low levels of signal in and the best way to manage trim and the 10db difference between the LFE and mains
I have simply cut all the 7 channels on the way in by 10db or near and then all the subs are aligned to work as a group and I add the missing bass to each channel
I now realise that the level when playing loud (105db peaks on music more on film) is only 190mV when feeding in 1V to a channel ( I know CD is circa 2V on peaks but used 1V to see what's going on) so my thinking is perhaps better to boost the LFE not cut the input to the 7 channels or everything happening in the DSP is at a lower voltage and possibly SNR ?
Any thoughts