Egnater Vengeance effects loop problems

[Rakehell]

A friend of mine recommended this forum as a possible resource for this issue, so here I am.

I recently picked up an Egnater Vengeance head, and I although I really like the sound and overall features, the effects loop is a major issue.
Over the last year I have put together a pedal board that I like and it works flawlessly with my Marshall DSL40c. I got the Egnater thinking that since it has a buffered serial effects loop it should work just fine with my board. Wrong. None of the pedals sound as good as they do through the Marshall, but the bigger problem is that there are several pedals that completely kill the volume and tone when I switch them on. I've emailed back and forth with Egnater about this, and they've been friendly and helpful, but none of their suggestions have helped and I'm now thinking that this is just the way the loop is designed on the amp. So my question is, can the effects loop be modded so that it doesn't affect the tone/volume of my pedal rig? It kinda seems like a headroom issue, but I'm not too tech savvy when it comes to such things. I otherwise dig this amp and I want to make it work, but I'm at the point where I'm thinking about returning it due to this issue.

Any help or suggestions will be much appreciated!

 

[Rising Farce]

If it's anything like the Egnater-designed Randall MTS heads, you'll need to use a line-level booster to make the loop work optimally with most pedals.

Try this: If you have a piece of rack gear, or access to one, run it in the loop and see how it sounds. If it sounds great, then the loop was, in fact, most likely designed to work best with line-level (rack) gear.

Good luck.