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The Spirit One is a full around-the-ear closed-back design from Focal that retails for $279, which isn't out of the question nowadays, and within the realm of reason compared to its direct competition. The Spirit One has a nice design, injecting a bit of upmarket audiophile flair to the Beats by Dre-esque form factor, especially in the headband. In other words, the Spirit One is a grown-up, less flashy rendition of some of today's more youth-oriented cans. The materials, despite being largely plastic in nature, look good, and overall build quality seems first-rate. The splash of red inside the nicely padded ear cups is a very nice addition, even if no one will really ever see it. The Spirit One comes with a very audiophile-like detachable cable as standard - in fact, you have to attach it yourself upon unboxing. The cable has controls for volume, as well as to answer and/or hang up on callers bothering you while you're trying to get your LAMFO on. The Spirit One's smart-phone compatibility seems to be universal, as you can use them as a headset, though for full-featured functionality, they must be connected to an iPhone or Apple-branded device.
As for specs, Focal isn't too forthcoming, though the information is easily found elsewhere online. The Spirit One utilizes two (one for each ear) 40-millimeter Mylar/titanium drivers, with a rated impedance of 32 ohms. The 42-inch-long, cloth-covered cord is terminated with a 3.5-millimeter plug with a screw-on 6.3-millimeter adapter as standard. Focal even includes an airline jack adapter and extension cable as standard, too. The ear cups collapse inward, allowing the Spirit One to be stored in its padded travel case, though even when folded over, these are not the smallest headphones in their respective category.
In terms of performance, the Spirit One is capable, but not my favorite, if I'm honest. It possesses incredible high-frequency and midrange clarity and extension, but I found the bass to be a bit light, making for a very top-heavy performance overall. It's not that the Spirit One lacks bass - it has low, mid-bass snap - it just falls a little short in conveying real weight. I found this surprising, given how tight a grip the Spirit One has on the head; generally, closed-ear designs excel at bass and yet I felt that the Spirit One fell just short. Speaking of the Spirit One's fit, I found it to be extremely tight and, well, tiresome after about 30 minutes or so. It's not like anything was digging into my skull or that the headphones' weight were too much for my head and neck, it was just the sheer pressure that got to me. I should think that after weeks and/or months of wear, things would loosen up a bit, but I lived with them for nearly three weeks and I still found them to be quite tight. Also, the ear cups themselves, while visually large, are actually on the smaller side. I have small ear lobes and it took some maneuvering to get my ear inside the cups without feeling the pinch. Read about the high points and low points of the Spirit One headphones on Page 2.