Velodyne DD15 - worth repairing the plate amp?

@m-db Mine was a DD18 made in 2006.  I'm not complaining about the failure.  It went 17 years with no problems and I got it fixed for not that much money.  

whart Those Class D plate amps with 'electronic' (can't think of the term) power supplies (without the huge/heavy transformers and coolers) are very light and cheap to ship. My LT1300 plate amp is 40 lbs, this one is maybe 5 lbs. 

I just picked up an Earthquake MiniMe DSP P12,  at $640 ($1300msrp) it was a great value and perfect for movies and non critical music , but my brother's HGS 15 walks all over it.  

Those big Velodyne have great pitch definition and really dig deep.  

CORRECTION: My Velodyne Plus subwoofers have been in my service for 12 years, not 22. Velodyne CA. Digital Drive Optimization technology may be over 20 years old beginning with the SMS-1. My apologies.

["On the other hand my current Plus 12’s and the 10 Plus are over 22 years old."  "set between +1 - +5dB between 38Hz - 15Hz for the past 22 years."] 

@kraftwerkturbo ,

It is not push pull kraft it is push push and totally relevant to this topic if you want the best performance. Take any subwoofer and play a bass heavy number at highish volume. Put your hand on the subwoofers enclosure. You will feel it vibrating, even if it is spiked to the floor. This is distortion. Ideally you should feel nothing. A sub like the Martin Logan will have 90% less vibration = less distortion. If you like distortion go with a single driver design, even s servo driven single driver design is going to have more distortion.