Mapletree Audio versus Decware preamps


Has anyone been able to compare these two low-cost, tube preamps? They seem to be desinged by folks that know what they are doing.
pubul57
Pubul

I can't comment on Decware but as a MAD line 2 owner I can tell you that this is one of audio's best values. I've heard preamps that cost 10 times it's price that didn't came even close to it's dinamics, clarity and lush sound.
I am looking for an amp that adds a little tube warmth, as I use a Lightspeed Attenuator with my Music Reference RM10 and RM9 SE amps, and it is about as neutral and transparent as any preamp I have ever heard - like a direct connect between source and amp. I'm looking for something to throw into the mix when I want a bit of tube warmth. Does the Mapletree lean toward modern tube neutrality, or a bit of the romantic side of things?
I haven't used a Decware but the Mapletree is a wonderful tube pre that does have a warmth to it...