Acoustic 360 bass preamp

[LP Hovercraft]

I swapped out all of the 1mF electrolytics on my Acoustic 360 preamp clone with Panasonic DME 1mF caps-the kind you'd use in a PT80 echo.  It really lowered the noise level in it, especially in the inductor simulation circuit-very nice and highly recommended.

I was A/B'ing it against an Alembic F-1X bass preamp into an SWR 600 Watt power amp.  Tonewise, it definitely held its own against that beast, but the Alembic smoked it in terms of volume.  Is it much louder when you run it at 25V?  (running mine on 9V currently.)  Alternately, would boosting the output of the Acoustic be just a matter of using a  a modified input cap Microamp at the output, or even one of Tim Escobedo's many booster designs.     

[Eric H]

I swapped out all of the 1mF electrolytics on my Acoustic 360 preamp clone with Panasonic DME 1mF caps-the kind you'd use in a PT80 echo.  It really lowered the noise level in it, especially in the inductor simulation circuit-very nice and highly recommended.

I was A/B'ing it against an Alembic F-1X bass preamp into an SWR 600 Watt power amp.  Tonewise, it definitely held its own against that beast, but the Alembic smoked it in terms of volume.  Is it much louder when you run it at 25V?  (running mine on 9V currently.)  Alternately, would boosting the output of the Acoustic be just a matter of using a  a modified input cap Microamp at the output, or even one of Tim Escobedo's many booster designs.     

There are probably ways to boost the output without adding another preamp --using 25v probably won't  directly add volume, but will add headroom, so you can increase gain here and there.
It's hard to make recommendations without a schematic link, though

-Eric