Listed Specifications for Guitar Speaker Frequency Range
Mat Nieuwenhoven wrote:
If the SPL
is measured at 2.84 Volts, then the sensitivity will be less for the
16 Ohm version.
** The spec is for so many dBs *per applied watt* at 1 metre.
For an 8ohm speaker this equates to 2.83V rms and for a 16 ohm
model 4.0V rms.
Sometimes the makers will use 100mW for their tests as SPLs
of 98dB and over are *very* loud.
Technically, you are correct. The 1998 book "Testing loudspeakers"
from D'Appolito gives the formula in chapter 2.8.3.
** Ya don't say.
However, amplifiers don't amplify watts. They amplify voltages, and
have a limitation on the current they can supply: that determines
their wattage.
** No fooling.
For practical use with given amp, a speaker with a higher SPL at
2.83V will sound louder than one with a lower SPL, even though the
latter one might be more efficient when looking at SPL/Watt.
** Sorry, that makes no sense at all.
Statements of the bleeding obvious followed by a complete non-sequitur do you no credit at all.
.... Phil
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