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Vandersteen 5a battery biased crossovers

I've been using my 5As nearly every day for over 2 and a half years now and I feel they are the best move I ever made in audio. I researched them (and many other speakers)thoroughly before I made my purchase. I must say that everything incorporated in this design makes more sense to me than any other speaker I've encountered(Richard Hardesty's review covers this all very well for those not familiar) The one feature I still wonder about though is the battery biased crossover. How much does this help the sound? I believe that after about 5 years the battery needs to be changed on each crossover. Has anyone here had the 5A long enough that this had to be done? Did you do it yourself or does it require shipping to the factory?( I think the batteries are soldered in place to keep from rattling)Also, has anyone just let this go and not really noticed a difference?
sonofjim
audioconnection
1,271 posts
 
Ion Long life type.
There is a total of 8 9V batteries you must install
one 9V in each X 5 High pass
and also three 9v in each of the speakers Internal Modular Crossover.
Make sure you are are a class act with soldering pencil as its important the 9Vs be soldered in tightly.
Removing the Back plate removing the screws and pulling out the modular Xovers then either perform yourself, Mail them out to Vandersteen Audio or Call you local Vandy dealer.
Cheers Johnnyr
sonofjim OP
557 posts
 
Thanks,
I knew this wouldn't be as simple as changing a flashlight battery. Luckily, it looks like the originals have a life of around 5-7 years so I'm jumping the gun on this more than I thought. For a while I guess I'll just continue to sit back and enjoy this fabulous speaker.
dem
79 posts
 
When you decide to replace your 5a's batteries, you may want to consider using the longer-life Lithium version. When I shipped my crossovers to Richard Vandersteen for battery replacement, I included 6 new RadioShack 9V "Ultralife" Lithium batteries (3 per crossover).
jeff_jones
418 posts
 
Helpful thread, thanks all. When I pulled the crossover boards out of my speakers I found that one battery had apparently shorted, and had blown its guts out the bottom. I'm the original owner and do not know when this happened, my guess is that it has been like this since the factory test floor. The batteries are series connected so the blown open battery would have removed all 3 from the circuit.
All 8 batteries have fairly heavy wire soldered on to them and generous amounts of solder, I strongly suspect that the heat required to solder does internal damage to many of the batteries at installation.
I normally am a Vandersteen fan, but this is just a really awful design.
sonofjim OP
557 posts
 
Jeff,

I see you have your 5As listed for sale. Will you be switching to a different speaker? If so, do you mind me asking what that might be?
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