The JBL L112 is a two-way bookshelf loudspeaker produced by JBL in the late 1970s and early 1980s. It is part of the L-series which is known for its dynamic sound and solid construction. The L112 features a 12-inch woofer that delivers powerful bass response, and a one-inch titanium dome tweeter that provides clear and detailed high frequencies. The cabinet is constructed from robust materials and designed to minimize resonance, resulting in better sound quality. It typically comes with a specially designed crossover network that allows the speaker to effectively disperse sound across the frequency spectrum. The L112 is heralded for its performance in both music and home theater applications, making it a flexible option for audiophiles. The speaker usually has a frequency response ranging from 35 Hz to 20 kHz, and a sensitivity rating around 90 dB, allowing it to be driven effectively by a wide range of amplifiers. Additionally, the design often includes adjustable controls for mid-range and high-frequency levels, offering users some customization of the sound to their preferences.