Want a very smooth and rich tone with less grit? This is our Gold Pin Option Retube Kit for the Rivera Venus 5 Heads and Combo Amps. It contains five Gold Pin ECC83S's with one being current balanced for the phase inverter in V5. The default power tubes are a matched pair of the JJ 6L6GC's but you can configure this kit to use the JJ 5881's by clicking on the "Customize" button.