Lightspeed attenuator lithium battery pack

I purchased one off E-Bay from a seller here in the states for $28 and free shipping. Just search "Rechargeable 3800mah Li-ion 12V Battery Pack with DC Connector" on there and you will find it. I prefer the sound of the battery with my Lightspeed, for I get better focus with it. The cord that comes with it will work, but is a bit loose on the input to the Lightspeed. You can purchase the ends from Radio Shack or on on-line, and make your own cable like I recently did.
The Lightspeed is a very revealing attenuator, and will certainly let you hear the flaws of cables and everything else in your system. I can not suggest any cables I have heard under $50 that I liked, but there are some between $80-$100 that are quite good.

I just used some simple and affordable 18-20 gauge solid core magnet wire for the plugs. I could not hear a sonic difference between it and the one that came with the Li-Ion battery pack. As far as interconnects go, that may be up to your personal tastes and what kind of "tone" you like best. You may have to try a lot of different ones to find what you like, so I would highly suggest going with a company that gives you a 30 day trial and return option. Two I have found quite good in that price range are MAC Ultra-Silvers at $59 or their Quads at $99. MAC charges quite a bit for shipping (over $15 last time I checked), and their wait time is usually 2-3 weeks.JW Audio sells their Cryo Nebulla cables for $79, and $5 shipping.They usually ship in just a few days, and offer free burn-in on their cables. You could try cables from both companies, and just send back the ones you don't prefer.