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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
hifiman5's avatar
hifiman5
1,832 posts
 
@gdnrbob  +1  "brusque" is the perfect adjective to describe Mr. V.    
mr_m
1,900 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
4,492 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
1,900 posts
 
Yes. Richard's personality is very colorful!
bondmanp OP
1,833 posts
 
@audioconnection I am starting to lose it. Tried 80Hz settings recommended, 1 up and 1 down, and I get no sound out of 2Wqs. Upped efficiency control to 85 dB, no difference. Burned a CD of Vandertones, but my amp did NOT like being touched by multimeter pins.... triggered protection circuit repeatedly.

I set the M5-HPs back to the 20k settings and will try letting them and the amp burn in for a while.

FYI, I took the M5=HPs and 2Wqs out of the chain altogether and got much better low end from my speakers run full range. I really miss what the 2Wqs used to do. :-/
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