Vandersteen 5A's Internal crossovers/batteries

I think the Advanced Lithium 9V Battery is the only one they make. Are you sure you're not looking at the rechargeable 9V battery? Also, if I remember correctly, you have to soldier the batteries. They don't just plug in.

I use Ultimate Lithium by Energizer. Supposedly they are the longest lasting. I also use Duracell Quantum Battys which may or may not be lithium.

I forgot to ask that Richard in the manual says to use a soldering iron not a soldering gun. What do you suggest? I own a weller soldering gun.
Radio Shack has a 35 watt iron. Also should I use silver solder?

Thanks Alan

I don't think it matters what kind of soldier you use because no signal runs through what you're working on. But to be honest, we're all audiophiles here, and you'll buy the silver soldier anyway (As would we all. Just make sure you cryo it first.) lol. The reason they tell you to use an iron, is because you probably don't have much room to work, and a full size gun may not allow you the access you need. Before you buy anything, look everything over really well. You need good lighting, so you might as well set something up now, before you start. Check to see if you can get an iron in below the connection you will be soldering. The tip of the iron will need to be under, and in contact with the metal you are going to apply soldier too. If, for some reason it looks like access will not be optimal, you may be better off getting a gas powered soldering iron or torch. None of this stuff is expensive, it is just a matter of what will fit where you are working. If you go into Lowes or Home Depot, all of these types of soldering tools are right in the same place, next to each other. Just pick the one that you think will work best.

Make sure you put something under what you are soldering to catch any drips. Also, before you soldier the battery, test everything first on a couple pieces of old wire first, just to get a feel for the equipment you bought. Even if you have soldiered things before, not all irons have the same feel, and heating time.

I recall the classic Infinity IRS Epsilon used two 9V batteries per loudspeaker to bias the joining point of a series/parallel set of capacitors in the tweeter network which is said to noticeably improve the top end.