I have been asked to assemble a couple of the LDR board sets, one into an existing case and one as a miniature preamp.
The existing case has been updated to have 3 inputs and 2 outputs, both preamps are battery operated.
The top one is the miniature using a NiMH battery, also 3 inputs.
The larger is using an SLA battery.
Side by side internal view.
The sound is very transparent however neither unit will go down to zero volume.
Chris LDR do you have any advice to get down to zero volume?