LDR Active Preamp - does it exist?


I am using passive LDR (Light Dependent Resistor) volume control LightSpeed Attenuator. As much as clarity and all the good stuff about this little preamp, I wish I can have some gain for my low sensitivity amplifiers. Is there any existing active preamp using LDR volume control?
nguyen787
And there's this one also,even better, already has a OPA627 and gain can be changed 7 or 2 And it has a discrete match fet output stage, I would omit R1 as the output of the Lightspeed will take it's place.

http://www.ebay.com/itm/OPA627-K170-J74-2SK170-2SJ74-Audio-preamp-DIY-KIT-/320840215695?pt=US_Amplifier_Parts_Components&hash=item4ab3912c8f

Cheers George
Burson Buffer is $550, not $700.

http://www.partsconnexion.com/t/Index/bur_buf160.html

I have not much to say about the Decware. At the risk of being impolite, when people talk about buffers, Burson usually comes up first. I'd go with the more well known manufacturer in this case.
+1 for Burson with LDA. A great match, been happy with this combo. Also, the people at Burson are friendly and accommodating.
George - the OPA627 DIY is too hard for me. Is there another version that easier.... :))
4hannons - how do you set up the Lightspeed and Burson.

Source --> Lightspeed --> Burson --> Amp

or

Source --> Burson --> Lightspeed --> Amp

Have you tried between those two configurations and what sonic results different between those two configurations.