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Vandersteen 2Wq subwoofers with M5-HP crossovers - help needed

I have been happily using a pair of Vandy 2Wq subs with single-ended M5-HP crossovers for a few years now. My system was dialed in the way I like it (bass a bit on the full side, but still tight and defined). I just had my amplifier repaired and upgraded, and the new input impedance is 22k ohms vs. the 10k ohms before the upgrade. I followed the Vandersteen recommendation for the jumper settings in the M5-HP (6 and 7 only, "on" or not open), and the bass is just about MIA altogether. As per the Vandy web site, I disregarded the chart on the case of the M5-HP and followed the chart on the web site.  Because I am an idiot, I didn’t bother to mark down the settings of the jumpers prior to changing them. Anybody have any suggestions for me that will restore the bass? I am pretty sure the issue is the jumper settings. Thanks in advance!
bondmanp
gdnrbob
2,421 posts
 
@bondmanp 
When Johnny said to measure the voltage, he meant at the main amplifier not the sub.
And, yes, the settings for the M5 should be from the list on Vandersteen's website and not the crossover box. Those, as hifiman pointed out are for the Quatro and above.
Mr. V. can be brusque at times, but never angry. He's too classy.
B
hifiman5's avatar
hifiman5
1,611 posts
 
@gdnrbob  +1  "brusque" is the perfect adjective to describe Mr. V.    
mr_m
1,087 posts
 
Please. Don't take what I said the wrong way. I have talked to Mr. V.  a few times and for the most part, he was very pleasant. We had this very discussion about the 2Wq sub I had just purchased and he got just a bit agitated about how I was going about integrating his sub with my amp. He asked me if I had read the owner's manual and I said YES. Twice! All turned out well after that.
gdnrbob
2,421 posts
 
@mr_m , 
We aren't putting words in you mouth/text in your post.
We just recognize Mr. V's personality.

B
mr_m
1,087 posts
 
Yes. Richard's personality is very colorful!
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