2-3 Weeks. 45 Day Lowest Price - 100% Satisfaction Guarantee. Three years in the making, the small-but-mighty Two/Fifty/Two is an affordable dual 50-watt sweetheart that features a pair of premium EL34 power tubes in each channel. Its spacious well-ventilated chassis provides maximum air flow to the diagonally mounted power tubes. The fan even switches automatically to high speed when Class A mode is engaged to ensure reliable performance under demanding conditions.