Lowell JR410-T870 4in Cone Speaker w xfmr

The Lowell JR410-T870 is a high compliance 4-inch cone driver with mounted transformer. Lowell publishes construction of 20-gauge steel, frame of 20-gauge stamped steel, zinc-plated and driver of 4-inch 15W single cone driver with 10 oz. ceramic magnet, paper cone, treated cloth surround.

Ordered as Lowell part number JR410-T870. Specifications as published by Lowell Manufacturing.

Construction	20-gauge steel
Frame	20-gauge stamped steel, zinc-plated
Driver	4-inch 15W single cone driver with 10 oz. ceramic magnet, paper cone, treated cloth surround
Transformer	70V with taps at 1, 2, 4, 8W
Assembly Frequency Response	75Hz-15.7kHz (±6dB) and 57Hz-20kHz (±7.4dB)
Assembly Average Sensitivity	91.4dB
Assembly Dispersion Angle	170 degrees conical
Assembly Mounting Depth	3.83 in