If one have an UCD, the above circuit will not be of any use as the amp already have enough gain. Can only get worse with another stage whether tube or sand.
If you insted remove the OP-amp built in the UCD and instead use an unbalanced to balanced tubestage, a mod will be understandable. Talked to the UCD-people a whike ago and we agreed this could be the solution for those wanting to make a hybrid.
If you insted remove the OP-amp built in the UCD and instead use an unbalanced to balanced tubestage, a mod will be understandable. Talked to the UCD-people a whike ago and we agreed this could be the solution for those wanting to make a hybrid.
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- Tube pre-amp + Class-D amp. any experience?