OK..if I go with the power expander I am still going to have to use a matchbox to adjust my servos before they go into the powerbox system...correct?
but the whole purpose is to have uninterupted flow of voltage to each servo...but 3 or 4 servos into a matchbox and then into one wire into the powerbox defeats the whole purpose....or am I missing something??
Thanks for the help.

Hi xtra330,
I am not sure exactly what configuration you are talking about. If you use a PowerExpander you would plug the Equalizer (or MatchBox) into the PowerExpander and then plug the servos into the Equalizer (or Matchbox). Yes, you are necking the power down to one wire if you do it this way. Both the MatchBox and Equalizer 3D recommend that you use the auxiliary power input when using more than two servos. In the MatchBox case you still end up with one wire but they way I see they figured it, that wire should be a short wire to a second battery. A short wire has less resistance than a long wire so you get less voltage drop. The Equalizer 3D has two aux power inputs so you would be running four servos off two wires. The other thing to consider is how the power is getting to the Equalizer (or MatchBox). If you use a receiver you have one or two 22ga wires with 3A plugs. This limits the current that can come into the receiver to start with without seeing large voltage drops between the battery and the receiver. Using the PowerExpander you have Deans plugs and at least 18ga wire, most of the time two 18ga wires. The 18ga wire can handle about 4 times the current of the 22ga wire comfortable and the Deans plugs can handle nearly 50A. You get a lot more power (less voltage drop) to the servo connector on the PowerExpander than you do to a servo connector on a receiver.
Please let me know if I need to expand on any of this for you.
Thanks,

Hey there,
That helps a little bit.Let me describe what I have:
4ea 8611a servos on the rudder
3ea 8611a servos on each aileron
2ea 8611a servos on each elevator
2ea 4800 mah lithioum ion (Fromeco)
1ea 2800 mah lithioum ion (for ignition)( Fromeco)
3ea voltage regulators (Fromeco)
If I went with your products, how would YOU set this up to get the most out of the system. Let me know what I would have to buy.
Thanks for your help and assistance, Joe

Hi Joe,
If I were doing this I would do the following. I would run both regulators into the PowerExpander. I guess you have them matched well enough that you do not get uneven battery draw which is lucky. Usually you get one battery going down faster than the other when two regulators' outputs are tied together. Next I would use an Equalizer II in each wing. I would plug one of the 8611As into the the PowerExpander directly and I would use the Equalizer II to match the other two servos to the first. You would use your transmitter settings to set the center and throw on the one plugged direcly in. I would use the Equalizer II on each elevator half unless you have them matched mechanically well enough you are happy. I would split the ailerons for sure and you can either split or not split the elevator depending on how you configure your mixes. On the rudder I would use two Equalizer IIs for the four servos. You get the best power this way using any matching device. You might also consider an Ignition Cutoff. Hope this helps. Let me know if I left anything out.

Hi Robert,
I gues I am just not sold yet on this whole battery voltage thing. I have been flying 35% and 40% planes in IMAC for 5 years now and have set the planes up as follows:
aileron servos to a matcbox(located in the wing root, single wire going to reciever.)
rudder servos in a tray(hooked to a matchbox, single wire going to reciever.)
elevator servos (hooked to a"Y" Harness(bothsides have there own "Y" Harness), single wires going to reciever.
I have always ran 2ea recievers, 2ea batteries, 2ea regs, and 2ea switches...split down the middle of the plane, all with 22AWG wire.....not a problem one(knock on wood).
I would like to try these new systems you have to offer as well as Powerboxes, but just seem unsure about them.
If I went with your system, would I have to send the Batteries and Regs back to Fromeco to have a new set sent out with the Deans connectors.
Basically, If I didnt have the batteries and Regs with standard wires and connectors, what should I get??
Anymore help or info would be appreciated.
I assume the set up you mentioned for my plane is the 40% package you are offering??

Hi Joe,
A lot of people are still doing what you do. It does work, you are just not getting the most out of your servos. I tell people if they are happy then stick with what you are using. I do feel you would notice a difference. You might try posting to see if you can get feedback from people that have used the PowerExpander or even other units like the PowerBox and Emotec. The only way to really get an advantage out of the PowerExpander is to beef up the wiring coming into the unit, if you keep single 22ga wires coming in you will not see the full benefit of the PowerExpander. If you want to use your old Fromeco stuff with the PowerExpander I would look into having the wiring changed to a heavier gauge and adding Deans plugs. We offer two packages for the 40%+ planes. One comes with just the TurboReg and PowerExpander and the other adds some Equalizers. Please let me know if I can answer any more questions.