I just bought an Ibanez BTB 5. It's got Bartolini pickups and preamp in it. The preamp runs on 18vdc. It seems that with 18vdc the output signal should need to be padded, however when I plug it into my Active input on my amp (with the 10db pad) I get hardly any signal into the amp, and what's coming out is very wimpy. When I plug it into the unpadded input I get more sound, but it's still pretty wimpy. With an 18vdc preamp I should have WAY more signal in than I need, but as noted.....very very wimpy. There's no pull out Active/Passive switch in the volume control, and it's got the 3 band eq with the mids having a semi-parametric stacked knob config. The serial number indicates it was made in 2006. Any body else have this kind of problem with the Bart preamp, and if so what turned out to be the cause, and how'd you fix it? Before anybody suggests changing the batteries.......already done.