Sony is resurrecting the best-selling WH-1000XM4, but with less battery life than the original, I have questions. The new WH-1000XM4C, priced at $300 and promising more comfort and improved noise cancellation, seems like an odd addition to the market. However, its 27-hour battery life, three hours less than the XM4 and XM6, is a major drawback. Yet, the 10-band EQ and updated sound tuning could be game-changers, and perhaps the key to personalising sound preferences.

Price-wise, the XM4C is Sony's best value offering, making it a compelling choice for those seeking a balanced mix of features and affordability. While the XM6 still offers superior noise cancelling, the XM4C's EQ and tuning adjustments could significantly enhance the listening experience for many.

The XM4C's proposed approach to tuning and EQ could be two solid wins. The 10-band EQ is a massive upgrade from the original XM4, and the 'updated sound tuning' could offer a more subtle and detailed sound profile, reducing the mid-bass bloat that has plagued Sony's headphones in the past. Whether this translates into a more natural and immersive experience remains to be seen, but it's an exciting prospect.

Ultimately, the XM4C's price and features make it a worth considering, but Sony's decision to sacrifice battery life for these upgrades raises questions. Only time will tell if the XM4C can win over headphone enthusiasts without compromising on the fundamentals.