dibble wrote: > I'm not an engineer, but I'm trying to get my head around some of the > technical information on the wiki so that I don't blow something up. > And, I'm stuck at a concept. Can someone help me understand what is > being said here? Specifically, with regard to the amplification factor: > > account is too new, so I can't post a link. add the http to the > following > wiki.slimdevices.com/index.php/Connecting_directly_to_a_power_amplifier > > Specifically, the power output and amplifier gain sensitivity section > quoted below: > (emphasis added by me) > > I understand everything about the statement above, except the missing .8 > of line voltage factor. I understand the 29db of gain came from the > specs of the amp. I understand that if you apply 2.3 line input voltage > you get ~65 Vrms by multiplying 2.3v * the 28.2 amplification factor. I > just don't understand how you get the 28.2 factor from 29dB of gain.
Voltage gain in db is 20LogV1/V2 so Gain is 10 raised to the power of 29/20 Ie 10^1.45 = 28.18 odd *Players:* SliMP3,Squeezebox3 x3,Receiver,SqueezeLite-X,PiCorePlayer x3 *Server:* LMS Version: Latest Nightly on Centos 8.0 VM on ESXi 6.5.0U3 on Dell T320 *Plugins:* AutoRescan/BBCiPlayer/PowerSave/PowerSwitchIII/Squeezecloud/Spotty/Player Groups *Remotes:* iPeng9/Orangesqueeze/PC/Jivelite/SqueezeLite-X *Music:* 522GB,1.5K albums with 25K songs by 5K artists mostly FLACs *Want a webapp ?* See http://forums.slimdevices.com/showthread.php?104305-Webapp-for-LMS ------------------------------------------------------------------------ Jeff07971's Profile: http://forums.slimdevices.com/member.php?userid=49290 View this thread: http://forums.slimdevices.com/showthread.php?t=111308 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/discuss
