The Dodd uses (2) 6dj8s and as previously mentioned, it only uses 1/2 of each tube (when they get old you switch tubes and the other half of the tube is used). I thought this was a pretty nifty feature for getting double the life from expensive NOS tubes, but maybe part of the decision was based on the battery supplies limitations in terms of driving tubes - don't know. Maybe a well implemented battery power supply is expensive, but nothing like the $10,000K + traditional preamps with robust powersupplies, often requiring a second chassis.
Battery Powered Preamps
I notice that the more expensive preamps get within a line, or in general, the more complexity and expense seems ot be applied to the power supply and regualtion; sometimes with the addition of a second box for the power supply.
I conclude power supply is important. If this is so, why not go the simpler route of battery power for pure DC? My Dodd Battery Pre works very well indeed (for context -I've owned CAT, Lamm, ARC, Joule, Placette Active, Atma-sphere (still own), Bent TAP). Am I missing something, or doesn't battery power just make the most sense for a preamp - off the grid and all that? Seem much simpler than most highend approaches, and much less expensive to implement.
I conclude power supply is important. If this is so, why not go the simpler route of battery power for pure DC? My Dodd Battery Pre works very well indeed (for context -I've owned CAT, Lamm, ARC, Joule, Placette Active, Atma-sphere (still own), Bent TAP). Am I missing something, or doesn't battery power just make the most sense for a preamp - off the grid and all that? Seem much simpler than most highend approaches, and much less expensive to implement.
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- 24 posts total
- 24 posts total