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Velodyne ULD 18 questions / help

Hi,

I have a ULD 18 with a ULD 15 amp. These are series I. I have been trying to locate a ULD 18 series I amp. Anyone know of where I can find one? OR, is there any chance a series II can be converted to a series I? OR (most likely I think) how to tweak a ULD 15 amp to perform best with the ULD 18? Also, does anyone know how to change the crossover point on a series I ULD control amp? I called velodyne a while back and they seemed a bit unsure about the ULD 18 -- long time ago, not many made, haven't seen in shop for ages, not all built the same, etc..

Thanks,
Michael
mfaughn
marktunis's avatar
marktunis
7 posts
 
There is a ULD 18 amp for sale on ebay now,
All the best,
Mark
mfaughn OP
2 posts
 
From what I understand the only dif b/w the amps supplied with the ULD 15 and 18 is that they were tweaked differently so as to operate optimally with the respective driver. Mine does work with the 15 amp but it would be nice to have it closer to perfect. For that matter it was said that each amp was individually tweaked to perform best the the specific specimen of each driver it was paired with...don't know how much that mattered though.

The biggest thing for me would probably be the ability to change the xo point. 85Hz is just too high for me. I currently favor my Infinity SSW210 most of the time because I can adjust the xo point to blend more seemlessly with my speakers. I use my system for music. Don't really care about how explosions in movies sound at all.

The one on ebay was a series II -- not compatible with series I unless there is a way to convert the amp to work with series I (hence my question).
apachef1
164 posts
 
You are correct about Velodyne tweaking each amp and driver as a set. I do know the main difference between series 1 & 2 are that the series 1 has the DIN style cable from the amp to the sub. The series 2 uses an RCA style connection.

The tweaking Velodyne is referring to would be the amp/subwoofers servo control interaction. You will need to find a tech versed in making these adjustments. Thats where it became to time consuming to find a tech and didn't want to deal with sipping the amp and driver out. So I sold mine.

Velodyne is absolutely no help. They act like they never heard of the ULD series subs and will not support the product at all.
I'm more or less done with anything Velodyne
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