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georgehifi

Responses from georgehifi

Lightspeed Attenuator - Best Preamp Ever?
Wow!! Your guna make me work for it, I'll try my best, in point form.1: For 1mt anything below 100pf per foot is fine2: Yes a number of my customers use quality xlr to rca adapters3: Not much lost with quality adapters from what they say, the gain... 
Lightspeed Attenuator - Best Preamp Ever?
What I meant is that I would not sacrifice sound quality by going back to the MkI Lightspeed configuration and having to charge more for it because it's balanced. I don't think anyone would expect that, let alone purchase it. Single ended sounds b... 
Lightspeed Attenuator - Best Preamp Ever?
I have tried very very hard to make a Lightspeed MkII balanced and reliable to stay in calibration even with electronic genius's trying to help out, but without some extra electronics (like sampling impedance values sort of feedback) it does have ... 
Lightspeed Attenuator - Best Preamp Ever?
Should be no problems, try it on low first you should have enough seeing you have at the moment with it direct. Then if you need to push it harder try the 5v. As for the impedance of 100kohm on the Krell this is great, as with the Lightspeed which... 
Lightspeed Attenuator - Best Preamp Ever?
Lightspeed Attenuators owners and diyer's, I've just been informed again by Stereophile, and you'll be happy to know that your Lightspeed has just made it again into the Recommended Components with the highest 3 x $$$ rating for sound and value fo... 
Lightspeed Attenuator - Best Preamp Ever?
We did experiments with different input impedance to a specially modded poweramp that we could change on the fly while listening. This was with about 30 "golden ears" at our club through a very revealing system, we went from 300kohm input impedanc... 
Lightspeed Attenuator - Best Preamp Ever?
Ditto with what Clio09 said Devilboy, you have a great system match for the lightspeed with those parameters. I also have clients that have poweramps with 20kohms input and say "they couldn't imagine it getting any better than this".Cheers George 
Looking for a Nice Simple Good Sounding Preamp...
Hi Scm, I've lost the countless times I have been asked this question. The Lightspeed Attenuator is all about no contacts in the signal path. And input switching goes against this in a big way. I did once make one that I believe is the closest to ... 
Looking for a Nice Simple Good Sounding Preamp...
Scm hi, I manufacture the Lightspeed Attenuator, looking at your PS Audio phono stage there is no problem feeding into the Lightspeed,being solid state with gain switchability. Also your Rogue Audio poweramp is high input impedance this is also a ... 
Lots of detail, great imaging, not much bass?
All the stars are aligned with your electronics for you to just pick the speakers you want, we just had a shoot out yesterday at our monthly Ason audio society meeting of a hand full of small book shelf speaker from $400 to $4.5k and the Silverlin... 
LDR Active Preamp - does it exist?
Same as what Clio09 said, very hard to pick the difference between battery and wall wart. Even the highly critical listener/reviewer Sam Tellig of Stereophile has memory lapses to what he has on powering his Lightspeed Attenuator when he's using i... 
LDR Active Preamp - does it exist?
May be you prefer the sound of a little second harmonic distortion, nothing wrong with that, adds a little ease to the presentation if needed, and may cover the sound of the Burson a little, that's what tube amps do. But if everything is spot on i... 
LDR Active Preamp - does it exist?
If you think the OPA627 is a little hard then an OP275 is for you, but I think it's a dual, there maybe a OP175 single.As for Burson buffer in the system position, I would put it after the Lightspeed as the Lightspeed is fine with the standard out... 
LDR Active Preamp - does it exist?
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-... 
LDR Active Preamp - does it exist?
This would be better, only use the first half it has 4 x gain, change the NE5534 for a better OPA627. It has 100k input impedance and 100ohm output impedance, put it after the Lightspeed. (Forget about the back stage with the NE5532) This would be...