Question about Lanzar SDBT75N Car DVD Player
It does not have a amp out put for my subs how do i hook it up then
If by saying amp outputs you are refering to the RCA jacks on back of the head unit (Left and Right RCA jacks usually labeled FRONT, REAR, SUB, etc...) then you do have options even if your head unit doesn't provide a SUB channel. These RCA jacks/amp outputs carry the signal (music or whatever) at a lower voltage (and is typically more like DC voltage as there is a ground reference which is 0 volts and signal rides on the positive voltage), providing a cleaner signal to the amp which does all the work. The wires behind the amp that you connect directly to the speakers is typically amplified by the head unit itself and is a much higher voltage level and varies from negative to positive ( AC voltage.).
You could use the other channels (FRONT or REAR) if available, (a specific SUB amp output cuts all the higher frequencies out, passing just the lower subwofer frequencies inside the head unit).
if you want to strive for a more efficient use of your sub, use a low-pass/SUBwoffer filter (a crossover) in between the Head unit and amp, thus providing the amp with subwoffer signal, (or if for some odd reason you have SPEAKER level sub connections you can use a line output converter which will let you run RCA to the amp.)
Hope this helps u understand why I couldn't just say get a new stereo nor could I just say use splitters on available amp outs.
Posted on Mar 05, 2009
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Posted on Jan 02, 2017
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