What Can I Do With This LPS?


I have a Tera Dak LPS that I used with a streamer/renderer at 2 Amp. I'm wondering what I can now use it for? Modem/Router, etc.. Here are the specs,


New TeraDak Dual-Rail 3.3VDC & 12-15VDC Linear PSU

Manufacture date: March 2015
Country of origin: Taiwan


+3.3vdc @ 3a
+14vdc @ 1a (internally adjustable from 12vdc to 14.8vdc)

Connection (LPSU side): single 4pin mini XLR for both rails.

The other end is unterminated and needs to be terminated by the buyer as appropriate for your application.
* White: 3.3vdc positive
* Black: 3.3vdc negative
* Red (no mark): 14vdc positive
* Red w/black mark: 14vdc negative

Appreciate you.



Since it has one rail that is 12-15VDC, that should be very flexible for a number of things. A router, satellite, or ethernet switch is one area. If you use a NAS or server/streamer that uses a typical wall wart, that might be a good area for an upgrade. Even some DACs can benefit if they use a wall wart. That said, just make sure whatever you are trying to power uses a voltage rating that matches your power supply. 

@blisshifi Thank you kindly. Yeah, matching the voltage rating is where I might have issue. Sometimes I see it posted and at other times I don’t. I have a streamer/ renderer connected via 7 cat ethernet to a separate router and I’m thinking I could increase streaming quality by placing it there. Does the amp rating matter as it’s set at 2? What concerns might I consider regarding the voltage rating. I’m thinking that anything under 12-15 V would be subject to damage. Sorry I use to know more about this but can’t remember anything. 

You should make sure the voltage requirements are aligned with the rails of the power supply. Sometimes a unit can be flexible (EtherRegen can use 7v-12v for instance), but in most cases it needs a specific voltage and ampere. The voltage should be listed on the wall wart you are replacing, on the unit itself, or in its manual.

Amperes are also important, but they do not need to be matched. The ampere rating is the amount of current that the power supply can handle. It can be higher than the unit you are trying to power, but not lower. If the unit you are trying to power requires more amperage than the power supply can provide, it will fry the fuse in the power supply, or the fry the power supply itself. The wall warts that you are replacing may have a higher ampere rating than the unit actually draws. It is more important to know what the unit requires vs trying to match the wall wart.


So when it was bought, the seller set the ampere at 2 for that particular wall wart that I was replacing. What’s confusing to me is this spec:

+3.3vdc @ 3a
+14vdc @ 1a (internally adjustable from 12vdc to 14.8vdc)

Actually I’m assuming the amperes was set at 2. The unit I replaced used 2 amperes for power. 

@blisshifi  Anyway, thanks for your help. Not wanting to take any chances, I’m going to have my friend test it and tell me what it was set for.