細節
An Amplion wood horned speaker
with A.U. 7 drive unit --the horn 14½in. (37cm.) diam; a BSA Western Electric Kone speaker in maker's carton; a Mullard HT unit; and a quantity of valves
(a lot)
with A.U. 7 drive unit --the horn 14½in. (37cm.) diam; a BSA Western Electric Kone speaker in maker's carton; a Mullard HT unit; and a quantity of valves
(a lot)