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Old 15th Jan 2016, 11:13 pm   #33
'LIVEWIRE?'
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Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
Default Re: Wiring 'Aux-in' (iPod) connectors to Car radios

AFAIK, the Motorola 112/114/122/124 series can drive two speakers in parallel. I have the service manual somewhere, but not immediately to hand. It may be available for £1.99 from the VRSD link at the top RH side of this page, and will confirm or refute this. Be aware that the output will still only be monophonic and that connecting too low impedance speaker(s) will damage the output transistors. The nominal impedance of car speakers is 4 ohms. Back in the day (1970s) if two speakers were fitted in a car, they were often wired via a speaker balance control though these are unlikely to be available now.
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