Resonant

a.	1.	Returning, or capable of returning, sound; fitted to resound; resounding; echoing back. Through every hour of the golden morning, the streets were resonant with female parties of young and old. - De Quincey.
	2.	(Elec.) Adjusted as to dimensions (as an electric circuit) so that currents or electric surgings are produced by the passage of electric waves of a given frequency.

Adj.	1.	resonant - inducing resonance; "resonant frequency"
	2.	resonant - characterized by reverberation; "a resonant voice"; "hear the rolling thunder" Synonyms: resonating, resounding, reverberating, reverberative, rolling

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