▁can ▁detect ▁the ▁rh ythm . ▁" It ▁was ▁an ▁u pr ight ▁speaker ▁consisting ▁of ▁a ▁ 1 4 in ▁square ▁box , ▁about ▁six ▁feet ▁tall , ▁and ▁about ▁six ▁inches ▁from ▁the ▁floor ▁– ▁with ▁a ▁ 1 2 in ▁speaker ▁facing ▁up wards , ▁and ▁a ▁three ▁in ch ▁port ▁below ▁that . ▁And ▁it ▁worked ▁very ▁well . ▁... ▁The ▁floor ▁shook ▁– ▁and ▁the ▁k ids ▁dan ced ▁away , ▁as ▁they ▁were ▁entitled ▁to ." ▁ ▁Career ▁ ▁In ▁the ▁ 1 9 7 0 s ▁and ▁ 1 9 8 0 s , ▁Ryan ▁gained ▁recognition ▁for ▁his ▁invol vement ▁with ▁several ▁artists ▁including ▁Gary ▁Moore , ▁Plan xty , ▁and ▁Christ y ▁Moore . ▁ ▁Ryan ▁was ▁introduced ▁to ▁the ▁family ▁C elt ic ▁band ▁Cl ann ad ▁by ▁their ▁manager ▁F acht na ▁O ' K elly . ▁In ▁ 1 9 7 5 , ▁he ▁became ▁the ▁sound ▁engineer ▁for ▁the ▁family ▁band ▁Cl ann ad ▁and ▁from ▁ 1 9 7 6 , ▁their ▁new ▁manager ▁along ▁with ▁his ▁wife ▁Roma ▁Ryan ▁after ▁O ' K elly ▁left ▁to ▁manage ▁The ▁Bo om town ▁R ats . ▁In ▁ 1 9 8 0 , ▁Ryan ▁persu aded ▁En ya , ▁the ▁younger ▁sister ▁of ▁sib lings ▁M á ire , ▁P ól ▁and ▁C iar án ▁B ren nan , ▁to ▁join ▁the ▁band ▁with ▁them ▁and ▁tw in ▁un cles , ▁No el ▁and ▁P ád ra ig ▁D ug