Use a pair of Rothwell attenuators at the input jacks of the preamp to which the tuner is connected.
10db, which is the amount of attenuation they provide, is considered as a rough rule of thumb to correspond to a factor of 2 difference in subjectively perceived volume. The 10 db should therefore be just about the right amount to compensate for the "almost twice as high" volume that you appear to be describing. 10db is approximately a factor of 3 difference in voltage, btw, if your reference to level was referring to voltage.
Regards,
-- Al
10db, which is the amount of attenuation they provide, is considered as a rough rule of thumb to correspond to a factor of 2 difference in subjectively perceived volume. The 10 db should therefore be just about the right amount to compensate for the "almost twice as high" volume that you appear to be describing. 10db is approximately a factor of 3 difference in voltage, btw, if your reference to level was referring to voltage.
Regards,
-- Al