JBL 4825

The JBL 4825 is a professional cinema loudspeaker from JBL Professional, a division of Harman International. Not much else is documented. A handful of sources list it as a compact but powerful cabinet for smaller applications, placed next to larger siblings like the 4850 in JBL's professional speaker lineup.

A period mention in Mix Magazine (June 1989, p.109) grouped the 4825 with JBL's professional sound reinforcement offerings. It called the 4825 the compact option for smaller applications in a family that included larger cabinets with 15-inch bass drivers. The same source indicated the 4825 was part of a broader system, with JBL also offering subwoofers like the 4845 and 4842 for low-end reinforcement.

The available specifications come from a single reference source. They list the 4825 as an 8-ohm cabinet with a frequency response of 50 Hz to 20 kHz, sensitivity of 93 dB (1W/1m), and a continuous power rating of 250W. Dimensions are given as 760 × 550 × 480 mm (H × W × D), and weight as 45 kg. One source suggests a recommended amplifier power of 400-500W, but no other reference confirms that figure.

No production years, original price, driver configuration, crossover details, or design information have surfaced in the available documentation. The 4825 appears to have been a workhorse professional cabinet rather than a heavily reviewed consumer product.

Type: Professional cinema loudspeaker / sound reinforcement cabinet
Impedance: 8 ohms
Frequency response: 50 Hz – 20 kHz
Sensitivity: 93 dB (1W/1m)
Power rating: 250W continuous
Dimensions: 760 × 550 × 480 mm (H × W × D)
Weight: 45 kg