georgehifi
Responses from georgehifi
| Lightspeed Attenuator - Best Preamp Ever? Yes rooms can be a problem, I have a very symmetrical room but about 1/3 along the side wall is a 1 x .7 mt glass fronted photo and it has to have a towel put over it when I do serious listening as the sonic hf mf side reflections it produces does... | |
| Lightspeed Attenuator - Best Preamp Ever? Clio09, Tony hi, wonder if you can confirm something for me. As I think you have purchased both stereo and dual mono Lightspeeds from memory, as I have never had the opportunity to do it and it goes against all logical reasoning. I have had a few ... | |
| Lightspeed Attenuator - Best Preamp Ever? Their shunt LDR could be paralleled by other shorting components, as there is no way of getting -99db of attenuation any other way, not even with best NSL32SR2S's which have the lowest on resistance of 60ohms at 20mA in quad matched form, sure you... | |
| Lightspeed Attenuator - Best Preamp Ever? From what has been told to me OPC271 (one of the first Lightspeed copies) is like my original Mk 1 Lightspeed Attenuator but with more glitz, which is a series resistor and shunt ldr, while it was still sounding very good and better than all other... | |
| Lightspeed Attenuator - Best Preamp Ever? Devilboy: George, are you joking? Some actually complain about the cost of the current unit? DevilboyI am serious, here is one reply email from yesterday, and I'm ashamed to say he was from Australia as well." Hi George, Thanks for your reply. It'... | |
| Lightspeed Attenuator - Best Preamp Ever? 220v/240v wall warts are supplied to most countries except the U.S. which is unfortunately 110v. (Just like you guys also drive on the wrong side of the road compared to everyone else). I refund $15 to those customers and give them a few links to ... | |
| Lightspeed Attenuator - Best Preamp Ever? Maybe one day in the future, fancier glitzier chassis, remote control volume, multiple inputs (switched via wetted relays). It will more than treble the price but still sound the same, no better than the original sounds now. And some complain abou... | |
| Lightspeed Attenuator - Best Preamp Ever? All you proud Lightspeed Attenuator owners, look out for the upcoming Stereophile issue (I think April issue which comes out in March) with Recommended Components listing, as they just emailed me for any changes (pricing, design etc) to be include... | |
| Lightspeed Attenuator - Best Preamp Ever? So taking any power differences to the LED's out of the equation all we have left is noise difference of battery v mains. But if anyone can hear the difference between 6uV and 4uV they must be superman. I have measured this my Tektronix scope whic... | |
| Lightspeed Attenuator - Best Preamp Ever? Sorry guys the internal regulator in the Lightspeed Attenuator is 5v and will be the same regulator regarless of using battery or mains, so ther is no difference in voltage that the LED's are seeing not even a miniscule of a volt.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? If you know LED lights, you would know they are an extremly stable (even thermally) form of light being powered by battery or regualted mains. This is maybe why battery cannot be picked from regulated mains in an A/B comparisions, like I have cond... | |
| Lightspeed Attenuator - Best Preamp Ever? Because all the supply has to do be it battery or mains, is to hold the LED Light (light emitting diode)steady at a predetermined (by you) luminosity level between 1 and 20mA, this LED in turn shines on the LDR (light dependant resistor)which chan... | |
| Lightspeed Attenuator - Best Preamp Ever? I would also like to hear other opinions about this from owners. This is what I found, I have Lithium Ion batteries I use, and no one, even "golden ears" who visit can reliably detect the difference between them and the standard mains supply that ... | |
| Lightspeed Attenuator - Best Preamp Ever? Dual L&R volume controls are the only option I provide for the Lightspeed Attenuator. It is the only one that does not effect the sound quality, though as you can imagine it is slightly more difficult to use, but a boon to those who have unsym... | |
| Lightspeed Attenuator - Best Preamp Ever? It's all good to add fancy ways of not having to quad match the LDR's but the end result is there's more junk in the signal path and it results in differing sound qualities (not levels) at different listening levels for each channel. This below is... |