The ornamental design for a soundamplifier, as shown and described.
FIG. 1 is a front view of a sound amplifier in accordance with the invention.
FIG. 2 is a back view of the sound amplifier in accordance with the invention.
FIG. 3 is a top view of the sound amplifier in accordance with the invention.
FIG. 4 is a bottom view of the sound amplifier in accordance with the invention.
FIG. 5 is a left view of the sound amplifier in accordance with the invention.
FIG. 6 is a right view of the sound amplifier in accordance with the invention.
FIG. 7 is a perspective view of the sound amplifier in accordance with the invention.
FIG. 8 is a perspective view of the sound amplifier in accordance with the invention; and,
FIG. 9 is a perspective view of the sound amplifier in accordance with the invention, shown in an environment of use.
The broken lines shown in FIGS. 1, 2, 4, and 8 illustrate portions of the sound amplifier that form no part of the claimed design. The broken lines illustrating the eight cylindrical elements in FIG. 9 are environment that form no part of the claimed design, while the remaining broken lines in FIG. 9 illustrate portions of the sound amplifier that form no part of the claimed design.