I have owned this preamp. It is the best of the less than $1000 preamps I've had in my system. Excellent low end response, fast and dynamic. It is, however, not as transparent as I think it could be. Replacement of the cheap volume pot, either with something of exceptional high quality or something nouveau like a LDR -- I believe such a substitution would take the Grounded Grid to another level.
A DIY type would get great value out of this preamp.
A DIY type would get great value out of this preamp.