It is unlawful to operate a powered public address system or amplified music speaker system or other means of amplified sound in any park areas without a written permit by the parks and recreation director or the director’s designee. Battery operated portable radios and tape players are permitted; provided they shall not be operated at a volume or in any manner which unreasonably disturbs the peace of others and cannot be heard 75 feet from the source. (Ord. 2174 § 1, 2015; Ord. 2094 § 1 (Exh. A), 2012; Ord. 1835 § 1, 2000; Ord. 1277 § 1, 1987).