Two things to note regarding the Pyramid PS3: It is rated at only 2 Amps continuous and 3 Amps peak. There is no over-voltage protection listed in the specifications. A failure in the power supply could fry the radio connected to it.
I use a Samlex RPS1204 rated at 3 Amps continuous with over-voltage protection. It has run continuously for the last 10 years with no failures. This is a better, safer unit than the Pyramid.
The unit he linked to shows the PS-3KX which does show overload protection but no over voltage protection. That is a good catch.
The link the OP posted also says 3 amps constant and 5 amps surge.
I checked some other sites specs on the KX series and they all showed a max of 2.5 amps constant but still no OVP.
I also found several sites that again claimed the 3 amp constant but I'd figure 2.5 myself now that I found so much misinformation.
The Samlex RPS1024 also has the cigarette lighter socket the OP needs if he intends on powering his HP-1 from it.
Now that you pointed this out, I agree that the Pyramid PS-3 may not be a good choice for some of the expensive items he talked about powering from it. The site in his link is also misleading. The item is called the PS-3 but the picture shows the PS-3KX. The KX does have a slightly higher rated output over the PS-3 but who knows which he will get. Plus they reversed the constant and surge ratings in the specs they listed!
The Samlex model is a little costlier and I'm not sure how much the OP can afford but I do agree that the Samlex is the better choice.
XENO194, I think I agree with pro92b and the Samlex model he mentioned would be a safer choice especially after you mentioned hooking up the 996 and HP1 to it! That right there is close to a grand worth of receivers so why take a chance of frying them from overvoltage when you can spend a little more and get a better supply that will shutdown from over voltage.
I just did a really fast search on the Samlex model and the 1st link offered it for $35 bucks so I'd imagine you could do even better. Don't overlook what I added into my previous post about not powering the HP-1 directly from a 12 volt supply!
pro92b, do you know what the Samlex OVP shutdown voltage is and can it be adjusted? How about the actual output voltage, can that be changed internally via a pot adjustment?
I'm glad you spotted this. I saw overcurrent but my brain did not translate that into no OVP. All of my large supplies have both, OVP and OCP plus I have external voltage monitors (at the loads) on them as they charge banks of batteries so I take no chances that something may fail. I even monitor battery temps in between some of the large SLA cells. Those sensors will not shut the supply down but they will alarm me just like a smoke detector would should they trip.
I also use current limiting resistors to limit the initial charge current into the battery banks should the power fail and deplete the batteries while I'm away. They limit the charge current to 10 amps max. The batteries can handle 15 to 20 amps initial charge current.
I do shut all of this down if I leave for an extended time though.
Nothing better than a little piece of mind when away on vacation!