Tekton Double Impacts

@sathtom  Thanks. I did a quick read up on the amp and it will work fine in terms of powering the DIs.

I, of course, do not know your preferences however (for my sensitivities) I would look to pair it with the DI-BE version or the SEs, which can be had used at reasonable prices. I say this because the MA252 / DI is more of a like-like pairing. The BE version or the SEs with the MA252 will likely be more balanced. Again, my opinion. 

@david_ten: Many Thanks for your suggestions. 

Just dropping in after a long hiatus from audio due to a new baby. Sometimes you just stop listening and forget how magical music can be especially with DI's and an LM508 lying dormant.

It all unfolded when my buddy from work stops by unannounced with a surprise gift, and I suggest "Hey, you've never heard my system". Let's do this I told myself, I haven't listened for 6 months! I had the herbies giant glider footers installed but I never recalibrated. After that night I was reinspired. Picked up some bass traps and panels used that weekend and got a new usb cable. Also recalibrated after careful speaker repositioning with REW bass response measurements.

The footers and room treatments brought a large improvement. The Curious Cable improved even further. Realism of instruments, vocals, soundstaging is stunning. Bass is super tight. Thoughts of bringing a subwoofer in are dashed. This LM508ia is a beast, and what a beautiful pairing with the DI's!

This is the thread that lured me back into audio, selling all my gear and building a do it all music genre tube amp / DI speaker system.

Thank you david_ten, waltersalas, grannyring and many others for inspiration and wise guidance. 

Has anyone here tried the Double Impacts with both the speaker spikes on and off?  If so, what were your results?

Without being spiked the DI's over transparency and its tight bass extension are impaired dramatically.