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vandersteen Model 5 x-over for 2WQ functions

I have tried to do my homework but have a few questions about the Model 5 crossover for the 2wQ subwoofer.

1. I am interested in getting a Model 5 x-over for my 2wqs to run with my 3a sigs. As I understand it, it comes with either balanced ends or RCA ends ($200 difference) depending on whether my preamp/amp setup uses xlr or rca. (Mine uses RCA) Is this correct?

2. An RCA ending transmits 6db less than an XLR. If you use xlr to rca adapters, you still lose that 6 db. Is that correct?

3. Since the formula for the capacitance needed for an exact 80Hz crossover in a 50K impedence machine includes both crossover Hz and impedence, by varying the impedence setting on the Model 5 crossover, you can vary the exact crossover point since the impedence on the amp is fixed. Is that correct?

Thanks. Information available about this crossover is a bit sketchy.
bot
sidssp
1,077 posts
 
1. Correct. In your case, you should use the RCA version.

2. The 6db lost is only meaningful if your power amp is truly balanced and has both RCA and XLR inputs. If your amp only has RCA input, there is no other way to connect it so you will never have the 6db gain.

3. I don't know if the switches of the Model 5 crossover changes its impedance or not but you set those switches on and off to vary the crossover point for a particular input impedance of your power amp.
sdcampbell
2,136 posts
 
I should have mentioned in my first post that you will need to obtain the list of settings for the "DIP" switches when the Model 5 crossover is used with the 3A Sig's / 2Wq combo. The settings that normally come with the Model 5 crossover are intended for just the Model 5, and these are different than the settings for the 3A Sig's. You can obtain the settings for the "DIP" switches directly from Vandersteen, and some Vandy dealers may also have them handy. I can also provide you with the list of settings if the other sources don't pan out.
bot OP
12 posts
 
Thanks so much for the replies. It sure helps to know what you are buying.
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