Question about Marantz Audio Players & Recorders
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: passive radiator speaker wiring
Passive Radiators are not driven by the amp. They have no voice coil and no power goes to them. They are used to enhance the bass or lower frequencies in a speaker system. They work by utilizing the back pressure that a driver (woofer) produces. When a woofer produces sound, it moves forward and backwards inside the speaker cabinet. This backward motion is what drives the passive radiator. So in order for the passive radiator to work, it would have to be placed in speaker cabinet along with a woofer that is hooked up to an audio amp.
Posted on Jul 24, 2009
SOURCE: Amplifier displays "CUR"
The "CUR" display means that the amp is drawing excessive current and the protection circuit is activating. Too low impedance or shorted speakers will cause the amp to draw excessive current.
The Alpine V12 is a Class D mono amp with only one set of speaker outputs. All versions, M301, M501, and M1001 are only stable to 2ohms. Assuming that all 6 of your connected subwoofers and speakers are 4ohm and they're all connected in parallel, the amp sees a .67 ohm load, far below it's rated impedance.
When brand new, the amp could probably operate at low to moderate volume levels without drawing excessive current. But as electronic components age, their tolerances change and they become less able to withstand excessive current or mismatched impedances.
I'd get a 4-channel amp and drive the 4" speakers off the front channels and the 6X9's off the rear channels. And just power the subs off the V12 making sure that they are connected to show a minimum load of 2ohms.
Hope this helps.
Posted on Jul 29, 2009
SOURCE: Car Ampli Problem
Use x21000w speaker size 10 that is good for your ampli..........theres no over heat because your ampli using a battery of your car thats is 12amp supply your ampli
Posted on Sep 29, 2009
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