The Infinity SM 152 is a 3-way, floorstanding speaker designed for audio enthusiasts. Manufactured around 1976 in the USA, it features a robust black finish and is built to deliver high-quality sound reproduction. With dimensions of 102 x 44 x 34 cm and a weight of approximately 30 kg, this speaker is substantial in both size and performance. The SM 152 incorporates a 381 mm woofer with a polypropylene cone, two 114 mm midrange drivers featuring polypropylene membranes, and a 25 mm tweeter. The speaker is capable of handling a nominal power of 150W and a peak power of 300W, making it suitable for various audio applications. With an impressive efficiency rating of 102 dB and a frequency response range of 44 Hz to 25,000 Hz (within ±3 dB), it provides a wide and dynamic sound spectrum. The built-in crossover divides frequencies at 500 Hz and 5500 Hz, aiding in the clarity of mids and highs. Additionally, it is equipped with two potentiometers, allowing users to adjust the output levels of the tweeter and midrange drivers for a customized listening experience. The SM 152 was originally priced around 800 DM per piece, reflecting its premium construction and audio capabilities.
