I've been interested in trying George's Lightspeed Attenuators for a while http://members.optusnet.com.au/~georgehifi/ , details of the Lightspeed are on here http://www.diyaudio.com/forums/showt...194&highlight=
I got these particular modules from Paul Hynes who did his own remote control version, he kindly did a small batch available to the diyers, details are further on in the diyaudio thread .
Anyway heres some pics of the thing I've been using for a few weeks.
I housed it in a small aluminum enclosure from Maplin. The infra red transmitter is enclosed inside a plastic project box fed from AA batteries, keypad is made by Storm from Farnell
The remote is big and junky but does the job
The vol adjustments is nice and smooth, I keep my finger held down on the up button until the sound is audible, I then tap it until its at the required volume
The balance control is a handy feature, it seems to work well for the less than perfect matched LDR's, mine was a little off centre, a few taps on the balance sorted it nicely.
The volume and balance re-sets after power cycling
I'm really pleased with this thing, sound quality is better than any of my normal pots (Alps blue and black) and also betters my Vishay Dale Attenuator
Obviously works best with high input impedance amps though