1. Please take 30 seconds to register your free account to remove most ads, post topics, make friends, earn reward points at our store, and more!  
    TalkBass.com has been uniting the low end since 1998.  Join us! :)

need some help understanding amp-things

Discussion in 'Amps and Cabs [BG]' started by Yossarian, Jan 6, 2005.

  1. Yossarian


    Jun 24, 2004
    I have a Peavey Max 700 and 410TVX, and I'm thinking about getting a Dr. Bass Rx212 and Rx210 to replace the 410. it's just too heavy. however, I don't plan to use the Max 700 forever, so I thought it would be wise to get the Dr. Bass cabs in 8 ohms, and for a while I'll only have the 212, so what I'm wondering is this:

    In theory, which of these would be louder? 475 watts through a 410 with 97 db sensitivity (4 ohm peavey cab), or 275 watts through a 212 with 103 db sensitivity (8 ohm dr. bass).

    I'm sure there's more to it than that, but I have no way of trying Dr. Bass so this estimate is the best i can do :)
  2. BillyB_from_LZ

    BillyB_from_LZ Supporting Member

    Sep 7, 2000
    Well, if I'm doing the math correctly....

    Peavey 97 dB + 10 log (474) dB = 124 dB

    Dr. Bass 103 dB + 10 log (274) dB = 127 dB

    Keep in mind that sensitivities are usually measured at 1 KHz.

    Again, assuming that I did the math right, it really goes to show the loudness advantage of having an efficient cabinet.