iconic piece stereo created introduced discontinued production run longest speaker launch expensive domestic market designed concept elaborated feet long requires man hours hand finishing team dedicated resembling conventional elegant landmark product company sought celebrities estimated total production units highly sought collectors day history horn loaded stereo speaker system housed piece piece including slot panel foot cabinet based principle developed consultant launched world earliest production stereo home use expensive speaker time flagship product cost equivalent terms product longest production run produced continually discontinued replaced product line named design early days sound designers faced issue listener located exactly speaker units col pioneer sound film industry solution problem stereo sound centrally positioned listener devised system sound speaker drive units curved surfaces wood panels cabinet create wide uniform stereo image hold stable location listening room ranger ranger radial system reproduction axis symmetry speakers consistently equal effect soon listener moves axis speaker moves takes sound intensity decreases rapidly distance distant speaker quickly loses nearer avoided projecting sound speaker curved surface acts convex lens sound directs strongly opposite speaker convex sharp axis symmetry movement listener disturbing listening area integrated speaker system energy stereo channels builds sound readily appreciated person axis symmetry longer unstable critical listener term unstable mere stereo reproduction customary appear center certain sections accompanying music positioned right left important stay uncertain movement apparent sound source gives feeling possible hold sound center found regular stereo fell proper place curtain sound opened ranger foot prototype product plenty right angles shiny black skin imposing visually called industrial design consultant project early wolf later president chief executive initially asked produce shell version dealers shops transportation installation constraints decided speaker split components left right channel curved panel easily assembled support weight prevent design called feet height instead producing detailed drawings wolf worked scale models created model plastic ended scale model design phase relationship wolf ranger tense project nearly collapsed parties came month june agreed definitive production specification way design construction seen unusual shape complicated build engineering factory translated design shop floor overcoming manufacturing challenges posed curved panels cabinet legs speaker entered production late original way design consisted bass drivers inch elliptical horns essentially drivers start rolling feedback foreign distributors way adding ring mounted cabinet aimed central sweet spot bass mid crossover mid frequencies crossed resembles measures inches weighs pounds according product standard finishes include birch premium wood finishes included light dark oak teak piano finish cost extra team worked unit spending estimated man hours complete single unit spent finishing assembly hours needed entire enclosure coats applied hand allowed dry product revisions components went numerous changes years launched domestic industrial variants driver added early 60s bass driver replaced early 60s power launched available integration powered speakers removed 1970s use new drivers employing instead bass driver replaced driver replaced discontinued reception said ideal listening position metres away lower normal seated position alternatively speaker needs hoisted comfortable sound sound described possessing dynamics turned loud sign distortion impressive separation instruments sonic describes sound possessing integrated liquid highs excellent bass worth dying rumours acquired left center right channels monitor recordings master tapes thousand units produced year life height production units left factory week units mint condition upwards second hand market featured museum exhibitions held entitled living modern way spin offs legacy launched smaller elaborate way speaker measuring inches named self powered employing stereo optional miniature version available early
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