If increase the volume above a certain level, the low-frequency and high-frequency’s reverberation reduces, and their harmonic strongly condenses and emits. So, the main violin and orchestral bands of ‘Max Bruch's Violin Concerto No. 1’ give breathtaking harmony which is like competing against each other. Even though the composition is complicated orchestra performance, HS1501 presents enough liveliness to the listener.
The HS1501 is designed for portable audio devices, from smartphones to portable digital audio players (DAPs). The tonal range of sound-signature according to devices is not large. But still, the better output stability of the device offers more headroom on mid and bass, so that listeners can get more detailed and richer expression of harmonics and imaging. When connected to the balanced (2.5mm or 4.4mm) output terminal, the stage moves backward two steps and gets widened, and the texture of the overall harmonics becomes smoother.
Clear mid and treble
Suitable for Portable devices
High quality make
Uncomfortable fit for some of the users
Thick cable for outdoor
The Acoustune HS1501AL was offered by ‘Acoustune’. The content of the review has been written without any restriction because the authors' freedom is respected.