Final Sonorous IV are a closed back (isolating) full sized headphone that fits around the ear. They are very easy to drive and provide excellent sound quality, especially from high quality portable sources, like outboard dacs and our quality portable music players. Sonorous IV use a high end 50mm driver with a balanced armature super tweeter style driver - the second driver adds a spaciousness, air and open feel to the music, more open than many closed headphones.
Pro tip- if you are matching Sonorous IV with a dac, ideally look for something that has a spec of output impedance of 1 ohm or lower, so as not to alter the frequency response of the headphones.
The Sonorous IV have excellent clarity, with drivers similar toFinal's higher end models, at a more affordable price, since they use less metal in the design and more ABS. The cable feels high quality and is replaceable. These do not fold or include a carry bag. Headband is well padded on the inside and there is little clamping pressure, for good comfort.
From Final:With the synergistic effect of a hybrid design that merges balanced armature with a 50mm diameter dynamic driver unit coupled with BAM mechanism, we’ve achieved a clear, vast sound stage with depth to it. A driver unit with a diameter of 50mm, newly designed for SONOROUS. By increasing the precision of the parts, it has become possible to make the gap between the magnetic circuit, the pole piece and the yoke narrower than with common products. A powerful neodymium magnet is coupled with this, making for a high magnetic flux density. The result is clear sound quality
We got engineers who had been involved in the development of corsets to participate in developing our ear pads, and re-examined the fit between the user’s ear and the ear pad. By employing the appropriate technology – pursuing synthetic leather with the best elasticity and the best sponge cutting and adopting ultrasound fusion for the adhesion of the synthetic leather to the inner frame – we constructed an unwrinkled, three-dimensional form with just the right amount of tension to it.
- impedance: 8 ohms
- SPL: 105 dB
- weight: 410 g
- cable: 1.5m