Want the vintage Tweed tone and the smooth rich Gold Pin tone? This kit includes a matched pair of JJ EL84's, a Gold pin JJ 12AY7 for V1, a standard Gold Pin ECC83S for V2 and a balanced Gold Pin ECC83S for the phase inverter in V3. The Gold Pin tubes are a little richer and smother sounding. Just let us know in the comments section if you’re looking for max headroom, moderate or an early breakup so we can select a proper grade for the power tubes.