The reissue Ampeg SVT-CL Classic Bass Head brings back in all its glory a classic big-stage amp that was the choice of players in the '60s. There's no question that the SVT-CL delivers 300W (to either 2 or 4 ohms). Its tube array includes two 12AX7s in the preamp, two 12AU7s and a 12AX7 for drivers, and six 6550s for power. Controls include three bands of tone, a five-way mid selector, plus ultralow and high boosts. Other pro features on the Ampeg SVT-CL Bass Head include normal and padded inputs, tube protection circuitry, auto-fault mode, fan cooling, slave output jack, 4/2-ohm selector, user biasing controls, and 3-position AC polarity switch..