In the high-end audio field, the Alnico magnet is truly the “magic magnetic core” and highly prized.
Back in the early 20th century when audio emerged and the first commercial vacuum tube radios came out, the Alnico magnet brought speakers to life. Speakers using it then had an average lifespan about 35% longer than those of other materials. It let old radios reproduce voices perfectly and vintage gramophones play melodious music stably, becoming crucial for sound quality inheritance and favored by modern engineers.
During professional recording, equipment often runs continuously for over 12 hours and gets extremely hot. The Alnico magnet, with its Curie temperature of around 800 °C, acts as a safeguard. Tests show that after 8 hours at 160 °C, its magnetic attenuation is only 3%. It drives the voice coil steadily, and the recorded sound retains over 90% of details within 5 – 20,000 Hz, providing high-quality material for high-end music creation.
High-end speakers demand extremely high sound quality, and the Alnico magnet is like a “master tuner”. When current passes through the voice coil, its unique magnetic field makes the vibration super smooth. Research indicates that compared with ordinary magnets, it reduces the harmonic distortion rate by about 12% in the 30 – 18,000 Hz range for speakers. The sound is smooth, natural, mellow and clear, accurately reproducing the delicate textures, with a warm and emotional tone.
Physically, the Alnico magnet is excellent, with a magnetic energy product of 10 – 110 kJ/m³ and a residual magnetic induction intensity of 1.2 T. In large-scale performances, speakers equipped with it can transmit sound up to 120 meters away with a loudness attenuation less than 2 dB, perfectly unleashing the stunning sound effect.
In today’s era with endless new materials, the Alnico magnet, with its profound heritage, stable performance and outstanding sound shaping ability, has rooted itself in the high-end speaker field to continue its legend and open the door to wonderful music for enthusiasts.
