Lightspeed Attenuator - Best Preamp Ever?

The question is a bit rhetorical. No preamp is the best ever, and much depends on system context. I am starting this thread beacuase there is a lot of info on this preamp in a Music First Audio Passive...thread, an Slagle AVC Modules...thread and wanted to be sure that information on this amazing product did not get lost in those threads.

I suspect that many folks may give this preamp a try at $450, direct from Australia, so I thought it would be good for current owners and future owners to have a place to describe their experience with this preamp.

It is a passive preamp that uses light LEDs, rather than mechanical contacts, to alter resistance and thereby attenuation of the source signal. It has been extremely hot in the DIY community, since the maker of this preamp provided gernerously provided information on how to make one. The trick is that while there are few parts, getting it done right, the matching of the parts is time consuming and tricky, and to boot, most of use would solder our fingers together if we tried. At $450, don't bother. It is cased in a small chassis that is fully shielded alloy, it gets it's RF sink earth via the interconnects. Vibration doesn't come into it as there is nothing to get vibrated as it's passive, even the active led's are immune as they are gas element, no filaments. The feet I attach are soft silicon/sorbethane compound anyway just in case.

This is not audio jewelry with bling, but solidly made and there is little room (if any) for audionervosa or tweaking.

So is this the best preamp ever? It might be if you have a single source (though you could use a switch box), your source is 2v or higher, your IC from pre-amp to amp is less than 2m to keep capaitance low, your amp is 5kohm input or higher (most any tube amp), and your amp is relatively sensitive (1v input sensitivity or lower v would be just right). In other words, within a passive friendly system (you do have to give this some thought), this is the finest passive preamp I have ever heard, and I have has many ranging form resistor-based to TVCs and AVCs.

In my system, with my equipment, I think it is the best I have heard passive or active, but I lean towards prefering preamp neutrality and transparency, without loosing musicality, dynamics, or the handling of low bass and highs.

If you own one, what are your impressions versus anything you have heard?

Is it the best ever? I suspect for some it may be, and to say that for a $450 product makes it stupidgood.
Oops, posted the same question twice...

Clio9, that is the email address to which I sent the quiry. I wanted to know if George accepted paypal or preferred CC transactions. I also wanted to know shipping costs to the UK. I sent two email within a period of two weeks. Perhaps George is on holiday.

He's been posting here of late so I doubt he is on vacation. I suspect your email may be getting caught in a spam filter. George usually responds to emails within a day or two.

I bought mine from George using PayPal. I don't think he takes credit cards. Let's hope he sees your posts here and can contact you through the Audiogon system.

Be patient, it's worth the wait.
Zendent7 E-mail George thru Audiogon. I also used his website address with no responce. E-mailed him thru Audiogon and he answered within 1 hour.
Zendent7 Does anyone how where or how to buy this preamp. I have tried to contact the manufacturer using the email from their website, with the intention to purchase, but there has been no response. Zendent7

Zendent7 you can email me through the Audiogon Industry Directory

Or the Lightspeed Attenuator website
And I will send to you PDF pricing/shipping/sales brochures. And remember as says on the web site remove the spaces before and after @ on my email address

Cheers George

Also Zendent7 I get about 50 Lighjtspeed inquiries per day, the only one I have had trouble sending to in the last week was this one if you are tag*** I cannot send anything to you, not even an email let alone a PDF as your provider earthlink is hell bent on blocking anyything, I've tried everything, it's so frustrating getting emails bounced back.

Cheers George