Question:
Does anyone know of tricks to match the output level of the driver
in a sub woofer to a given output level of an ESL element?
And what are the drawbacks of a certain method?
Things that come to my mind are:
1) Bi-amping, drawback quite expensive.
2) Bandpass housing, drawback that the impulse response of the
driver is not as ideal as other housings.
Please add as much idea's with comments as possible,
Answer:
Obtaining the correct balance between electrostat and woofer
is paramount toward achieving full rich sound without smearing
the delicay of the electrostatic loudspeaker.
The method Roger Sanders' recommends is to listen to the MIDRANGE--
not the bass. Adjust the woofer level so that the midrange is full
yet completely clean, clear, and detailed. Any hint of a lack of
definition or muddiness in the midrange means that the woofer level
is too high.
Use recordings of male vocalists or symphonic orchestras. If the
midrange seems distant or weak, increase the woofer level.
Yes, but if you demand accuracy and realism then this is a
method that removes problems associated with filters in the
high level signal path.Impulse response is very important. Neutrality is, also.
It is for these reasons that our designs champion the use
of Transmission Line woofers. Recently, I've been using
John Cockroft's hybrid lines that are much less complex to
construct than the classic line
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