Start with 5-watt single-ended Class A operation for the smoothest breakup that begs to be cranked, switch to the 15-watt push-pull mode to get the grind and chime of vintage British amps, and then flip over to the 25-watt Class A/B section to get the most headroom and power as well as a sound that's unique to the TA-15. If that sounds too good to be true, think about the flexibility of having this switching on independent channels for cleaner and higher-gain sounds. Stuff all of this into a road-ready metal enclosure that comes in at just 12 pounds, and you've got the Transatlantic TA-15.