RHA has, in a sense, downscaled. The headphone company has adapted key components from its midprice earphones to produce the budget-price MA150.
The MA150, at $20, uses 10-millimeter drivers similar to those in the popular MA350 model, which are $40, and the $50 MA450.
RHA, of Glasgow, Scotland, trims cost where it is largely unnoticeable. The earphones' cable is rubber instead of cloth, and it is a bit shorter. The earpieces are plastic rather than aluminium. The ear tips are single-density silicone rather than double-density.
The warranty is one rather than three years. Some differences you might notice, like the loss of the three-button controller on the cord and the lack of a carrying case. One reason the sound remains good may be that the 150's ear tips fit a little loosely in the ear. With a really good seal, the bass may be a little overpowering and the overall sound a little fuzzy and indistinct. Using slightly looser tips improves the overall impression. But at $20, that is more a quibble than a complaint.