I remember everything from IWISTAO 12 Inch Full Range Speaker Unit without a baffle
The speaker is one inch large and one inch strong, small speaker unit to listen details, and large speaker unit to listen energy. Large-caliber speaker unit have a wide sound field, which is unmatched by small-caliber speakers. The speaker cone frame adopts aluminum die-casting structure, the paper cone is a leather-edge suspension paper cone, and its magnetic circuit adopts a symmetrical magnetic circuit structure with a short-circuit ring, and the magnet adopts Y35 aerospace magnetic outer magnet.
The performance of speaker unit is deep and full in low frequency, beautiful and lyrical in the midrange, clear and bright and elegant in the treble, and full of penetration, also its vocal performance is very outstanding. It is a good match with the tube amplifier, such as 300B, 2A3, EL34, KT88, etc.; Because the speaker unit’ sensitivity is high, the output power of 3 to 5W can produce very good sound. At the same time, it is also suitable for transistor power amplifiers.