USB Powering Multiple Speakers...?!?
A laptop with audio 3.5 mm and USB port for one of those USB audio gizmos. Great. But I have three speakers that I could power and they are made for computer use so they all have built-in amplif...
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The 3.5mm port that is for headphone or external speaker/s can be harnessed to drive your JBL speakers. The power is not enough to drive the voice coil however.
To enhance the wattage output of this 3.5mm port you can install a pre-amp right at the output of the 3.5mm.
Your amplified JBL speakers can work with the pre-amp to even extend the volume range of your laptop.
Three pre-amp models are available at ALL Electronics. Since you already have the amplified JBLs you can try the 4 watt first, if you need more to knock your socks off (lol) go to the 20 watt model. Good stuff made by Velleman in Germany.
Another plus: you said that you have three...you can tap the third speaker to the L channel and you got yourself a pseudo surround sound set up. Mount it behind your head board or your favorite chair.
The model numbers escape me right now but you can browse their website. They sell like hotcakes so one catalog number may not be in stock at a given time. Requires assembly and a bit of some electronic savvy (which shouldn't be a problem)and comes with schematic diagram. Price range is $5 to $25.
DW loves this stuff, it's like being in movie theater watching Netflix in the study-- audio signal from her Samsung tablet.
To enhance the wattage output of this 3.5mm port you can install a pre-amp right at the output of the 3.5mm.
Your amplified JBL speakers can work with the pre-amp to even extend the volume range of your laptop.
Three pre-amp models are available at ALL Electronics. Since you already have the amplified JBLs you can try the 4 watt first, if you need more to knock your socks off (lol) go to the 20 watt model. Good stuff made by Velleman in Germany.
Another plus: you said that you have three...you can tap the third speaker to the L channel and you got yourself a pseudo surround sound set up. Mount it behind your head board or your favorite chair.
The model numbers escape me right now but you can browse their website. They sell like hotcakes so one catalog number may not be in stock at a given time. Requires assembly and a bit of some electronic savvy (which shouldn't be a problem)and comes with schematic diagram. Price range is $5 to $25.
DW loves this stuff, it's like being in movie theater watching Netflix in the study-- audio signal from her Samsung tablet.
