This year marks the 50th Anniversary of Mark Levinson. The brand is celebrating with the launch of a high-end, limited-edition monoblock amplifier package, the ML-50 ($50,000/pair). At the same time, the company has launched its first-ever portable product, the № 5909 noise-cancelling Bluetooth headphones ($999). Will potential buyers see the № 5909 as an affordable Mark Levinson product, or a super expensive wireless headphone? Read on to learn more. Read: Mark Levinson New $50k Amp and No 5909 NC Headphones