georgehifi
Responses from georgehifi
| Sennheiser HD 650's thin sounding? Loftus85 There is something very wrong here, I have heard of HD650 copies getting around, also B stock from the factory, maybe yours could be one of these. As mine are simply stunning to listen to. And the only headphone that I have heard to just ... | |
| Lightspeed Attenuator - Best Preamp Ever? Let's get this right!!!!The Ravel's Bolero test is just a level test, that all, as it starts off very quite and builds slowly so you can gauge level when directly connecting CDP to poweramp, so you don't blow up your amp/speakers. You can use any ... | |
| Lightspeed Attenuator - Best Preamp Ever? 10-09-10: GrannyringQuote>Perhaps the 2D forwardness speaks more to my system synergy then to anything else. This may well be the case as I have no way of really knowing.What you should do Grannyring to see if the Dude is artificially giving de... | |
| Lightspeed Attenuator - Best Preamp Ever? Dual L&R controls in every PDF broucher I send out, is the only option I do. It's a $30usd option, but I tell everyone who inquires about it they are not as user friendly as the single stereo pot. As for different cd level volume change, you h... | |
| Lightspeed Attenuator - Best Preamp Ever? I could but instead of $450 it would end up costing $1450 and would then be no longer a "Stereophile $$$ value" Quality remote, reciever, motorized pot, different power supplies and larger chassis.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? For those who follow Stereophile, the Lightspeed Attenuator has made it into "Class B" Recommended Pre-Amps with a $$$ value tag in the October issue. I received an anonymous email saying if your wondering why it didn't get into "Class A" just hav... | |
| Lightspeed Attenuator - Best Preamp Ever? 1mt each each side of the Lightspeed Attenuator of Eichman Express Six unshielded. I have found shielded cable a little constricted compared to unshielded of the same construction, I believe these days with CD high level output 2v there is no RF b... | |
| Lightspeed Attenuator - Best Preamp Ever? Agear and guys, let's get the name of the main devices inside the Lightspeed Attenuator correct, they are not solar cells, they are not optocouplers, they are LDR's (Light Dependent Resistors). These LDR's are made from (back in the old days) Cadm... | |
| Lightspeed Attenuator - Best Preamp Ever? Agear hi your questions to me are answered here it's a big read, I started doing these some 30 years ago it was new then, I should have patent it, it is refined sonically to the max today, without being overly complex, and pricing kept low as poss... | |
| Lightspeed Attenuator - Best Preamp Ever? You are right Paul, in some instances. But in our case with the parameters I have outlined for the Lightspeed Attenuator, if you have a source that has low output impedance, less than 100ohm and 2v or more output voltage, and the power amp at more... | |
| Lightspeed Attenuator - Best Preamp Ever? I much prefer direct coupling, I can hear coupling caps. But I do not think this circuit can be direct coupled as I think there is a high input offset from the chip amp, I could tell better if they gave a the internal circuit diagram to it, but th... | |
| Lightspeed Attenuator - Best Preamp Ever? I assume you are using the input that is full range not the one with the roll off at 70hz. The diagram actually shows it's 27k input impedance this together with the 1uf coupling cap (yuck) gives a 5hz -3db roll off, the opamp is a 14watt chip amp... | |
| Lightspeed Attenuator - Best Preamp Ever? That is correct, buffers are there to drive long interconnects, and or low input impedance amps. There is no perfect buffer they all sound different As there is no perfect interconnect they all sound different, unless the amp is so low in input im... | |
| Lightspeed Attenuator - Best Preamp Ever? From what we have learnt and heard for myself, the only way to make all interconnects invisible (sound the same) with no sonic signature, is to have the poweramp input impedance at 1kohm or less, this then becomes a hard load for the pre to drive ... | |
| Lightspeed Attenuator - Best Preamp Ever? You are right Pubul57, the momment you start to lower a digital based volume control, you start to whats called "bit strip" the name says it all, and this lowers the resoution. Aways leave it full up when using in conjuction whith the Lightspeed.B... |