I second the comments about recording technique and quality.
Also, to be sure that nothing simple is being overlooked, are you using the 4 ohm taps on the amplifier? If not, that is undoubtedly part of the problem.
Also, given that the impedance of the speakers descends to very low values in the upper treble region (as is typical of electrostatics), if your speaker cables are particularly long and also have highish inductance per unit length that could be a contributing factor as well.
Regards,
-- Al
Also, to be sure that nothing simple is being overlooked, are you using the 4 ohm taps on the amplifier? If not, that is undoubtedly part of the problem.
Also, given that the impedance of the speakers descends to very low values in the upper treble region (as is typical of electrostatics), if your speaker cables are particularly long and also have highish inductance per unit length that could be a contributing factor as well.
Regards,
-- Al