Mapletree Audio versus Decware preamps

Perhaps others to consider in this grouping would be the Transcendent Sound and Van Alstine Line Stages - seems these 4 companies offer quite a bit of bang for the buck.

Pubul57, it doesn't look like the Mapletree is in your system any longer. What prompted the change? I can't tell from your system edits. Thanks.

Made the commitment to passives (Lightspeed Attenuator) in the system I was using the Mapletree; but I am actually thinking of buying it again as I do miss putting it into the mix.

Having had both the Mapletree and the Transcendent Grounded Grid, I believe the Grounded Grid is the superior preamp.

DId you use both with the same amp, and if so which amp? A nice thing about the Mapletree is the DACT stepped attenuator option, which is not available to me with the Transcendent since I can't do DIY.