Yet another new Product- USB Wall Adapter

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arkywolf

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Is there a noticeable difference in PT performance between the new 2.1 usb wall wart and a standard computer USB 2.0 connection?

Most computer USB are only rated around 1 amp. So in my thinking if you are able to provide as much power as you are using then the proformence should be greater
 

waylonjessi4ever

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Ms. Nancy not much, only 10.5 watts of power max. What the higher than 2.0 amps provides is the ability to fully utilize the wow cartos that come in under 2.5 ohms (and quite a few do). Cool cart users won't notice much difference because they only pull 1.52 (rounded up) amps on average (3.3 ohms).

huh ?:?:.....ok .......thanks science guy ...:) ok i get it that 10.5 watts is good ....
but ...this is so i can use the passthru in the house right ? Thanks for putting up with me Pablo :)
 

markfm

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A solid 2 (or 2.1 :) ) amp wall wart is a good thing. The formal USB 2 spec only requires 500 mA (0.5 amp) for a PC USB port; while many of them will indeed provide more, it is an iffy, out-of-spec, thing, and what can happen is that it "works" only because the PC power supply is being over-stressed dropping the voltage -- you may only be getting 4.5V, not close to 5.

A dedicated low-cost wall wart lets you avoid the possibility of harming the PC -- at the very least blowing a port, and at worst taking out the PC power supply or motherboard -- if you have a short occur.

The plus of 2.1A is that it means you can go down to a 2.4 ohm atty or carto before you exceed the power supply spec; a 2A supply has a 2.5 ohm limit. While practically speaking a 2A rated supply will likely drive a 2.4 ohm carto fine (engineering margin), it is always preferable to stay within the device's rating.
 

dohsma

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A solid 2 (or 2.1 :) ) amp wall wart is a good thing. The formal USB 2 spec only requires 500 mA (0.5 amp) for a PC USB port; while many of them will indeed provide more, it is an iffy, out-of-spec, thing, and what can happen is that it "works" only because the PC power supply is being over-stressed dropping the voltage -- you may only be getting 4.5V, not close to 5.

A dedicated low-cost wall wart lets you avoid the possibility of harming the PC -- at the very least blowing a port, and at worst taking out the PC power supply or motherboard -- if you have a short occur.

The plus of 2.1A is that it means you can go down to a 2.4 ohm atty or carto before you exceed the power supply spec; a 2A supply has a 2.5 ohm limit. While practically speaking a 2A rated supply will likely drive a 2.4 ohm carto fine (engineering margin), it is always preferable to stay within the device's rating.

+1

OK, I'll have to admit.... He said it better than I did
 

kittypie

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Look on the power supply. In small print it will state what the output is. For example, "Output: 5V 1500 mA" or "Output: 5V 1.5A". For a simple, unregulated, passthrough, you want to see at least 2000 mA or 2A, to be able to use down to 2.5 ohm cartos or atties.

Thanks! That makes it simple!
 
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