@reverendo The Mola Mola Makua is an excellent option and maybe a real superstar. I have been participating on a thread on Computer Audiophile about the Makua for maybe 3 years now. We were all waiting for the Makua DAC module and/or the Tambaqui standalone DAC to finally arrive.
In that thread another option was also discussed to maybe rival the Makua. That involved the Benchmark LA4 preamp + another standalone DAC such as the Tambaqui or some other great DAC.
The reason the LA4 was brought up on the Makua thread was that the design of the 2 preamps seem to have the same goal of making it as quiet as possible. I believe these 2 preamps are the quietest preamps out there (LA4 #1). The LA4 preamp has the reputation of making DACs sound their best. The LA4 is also continually sold out on the Benchmark site (a good sign).
The price of the LA4 is $2.5K and almost all reviews of it say it sounds like a $20K preamp. The Makua is around $20K with the DAC module. Though I have seen the Makua without the DAC module offered for around $7K used. The LA4 has a 30 day home trial which I will take them up on before I dip my toes into the Makua.
BTW - I noticed a Mola Mola Tambaqui DAC up for sale for about $7K yesterday. It looks like it sold in 1 day.
BTW2 -
http://www.enjoythemusic.com/superioraudio/equipment/1019/Mola_Mola_Makua_Preamplifier_DAC_Phono_Kaluge_Power_Amplifier_Review.htm