Our room-response measurements showed relatively flat output from 100 Hz to about 1 kHz and another flat range from 1 to 20 kHz at a 4-dB lower level. The woofer's resonant frequency is given as 50 Hz, +/-5 Hz. The input connectors, spring clips designed to accept only wire ends, are recessed into the rear panel, together with the impedance switch.Īdvent's specifications for the Legacy III include a bandwidth of 40 Hz to 23 kHz, sensitivity (6-ohm setting) of 90 dB sound-pressure level (SPL) at 1 meter with a 2.83-volt input, and a crossover frequency of 2.5 kHz. The woofer, operating in a sealed enclosure, is at the midpoint of the front grille, with the tweeter above it, near the top of the front panel. The front is covered by a removable black cloth grille. The Legacy III's cabinet is made of 3/4-inch particle board covered with black textured vinyl, with a solid pecan top plate and base trim. If two or more pairs of speakers are driven in parallel, as they might be in a multiroom installation, for example, the 8-ohm setting lightens the load on the amplifier. The manufacturer recommends using the 6-ohm setting when the amplifier is driving a single pair of speakers, since that will deliver the system's maximum sensitivity (efficiency). The woofer is unusual in having a dual voice coil that enables the system impedance to be set at either 6 or 8 ohms by means of a toggle switch on the back of the cabinet near the input terminals. The Advent Legacy III is a two-way floor-standing speaker system using a 10-inch woofer and a 1-inch soft-dome tweeter with magnetic-fluid damping.
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