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my DAC has fixed/variable outputs - it's the phono that requires it. if the dac had an analogue input, it would be fine.
the stereo coffee boards look to be good value. i don't suppose you'd fancy building one for a fee?
http://hifiwigwam.com/forum/topic/82725-stereo-coffee-ldr/
BRM-
It looks very easy, I'd put it together for you as long as you provide the bits. I'm guessing the biggest problem would be decided on an enclosure and having the right size drill bits. The soldering on that is a 20min job.
I'm going to try and post a pic of the phono stage, I had to source the components from 3 different places and it took a week of evenings mousing around. The physical build took 5 hours for the 2nd unit, the first one took longer because I wanted to test it with 2 9v batteries.
I bet Sachin at Audiokarma has some LDR boards. The phono ones are lovely.
Airhead
Not totally related to what you're asking but I just built a pair of CNC phono stages and OPS power supplies on a couple of boards supplied from a guy in India. They came out well and allowed me to dial in the gain I wanted by using specific resistor values. That allowed me to avoid preamps. I'm going through a DAC most of the time and largely use powered monitors, so I use a digital switching/mixing box to switch between sources. Obviously you're building an analog system so you need a different solution. The CNC+Power Supply cost around £150 each in total including the enclosure and interconnects. Audiokarma have a huge thread on it and quite a few on preamps active & passive.