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Sebrof, EL84s are wonderful sounding tubes, but not all EL84 amplifiers have the characteristics of your Stingray. That has more to do with Manley Labs. If you want to warm up the sound a little replace the 12AT7s with NOS Telefunfens. The original Stingray came with EI 12AT7s. Also , depending on which version you have, the later versions are less powerful due to an output tube change which resulted in a smaller power transformer. This is why many believe the original Stingray is the best sounding.
Sebrof, EL84s are wonderful sounding tubes, but not all EL84 amplifiers have the characteristics of your Stingray. That has more to do with Manley Labs. If you want to warm up the sound a little replace the 12AT7s with NOS Telefunfens. The original Stingray came with EI 12AT7s. Also , depending on which version you have, the later versions are less powerful due to an output tube change which resulted in a smaller power transformer. This is why many believe the original Stingray is the best sounding.