georgehifi
Responses from georgehifi
| Lightspeed Attenuator - Best Preamp Ever? As for having my own Lightspeed Attenuator forum Tsciame, it would be nice, but I would have to maintain it, moderate it as well, and I'm flat out building them, it's nice when I have a break in orders to go down and have a surf at the beach come ... | |
| Lightspeed Attenuator - Best Preamp Ever? Banquo363This warm up period with vinyl, it's probably cold/stiff cartridge suspension to start as they are made of rubber then it get's more malleable as it's used this could be the reason.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? So if he doesn't like Fets or Mosfets the input stage to the Samson must be bi-polar, it is not tube as it's all solid state. This means the Lightspeed Attenuator is maybe not giving 100% of it's self, if the Samson is bi-polar input they (poweram... | |
| Lightspeed Attenuator - Best Preamp Ever? Banquo363 As stated in the instructions, you can leave it powered 24/7 just leave the volume at half position when not playing music. If using battery supply this is not possible, but still you can plug in the wall wart and leave it on 24/7 and yo... | |
| Lightspeed Attenuator - Best Preamp Ever? It would be good for someone to grab an ohm-meter and measure the input terminals (Amp off naturally). If it is bipolar transistor input you can bet you life it's going to be less than 47k. If it's fet transistor input there's a chance it's 47k, m... | |
| Lightspeed Attenuator - Best Preamp Ever? Hi guys and Knghifi, glad your enjoying the Lightspeed Attenuator, you've put it up against a very expensive ($14,000) in the Vac Signature pre, I'm over the moon it held it's head up high against to it. One question Knghifi the poweramp TRL Samso... | |
| Lightspeed Attenuator - Best Preamp Ever? 11-02-10: Pubul57>But there is no output impedance optimization based on dial position 10-12-2 o'clock - is that right? Some attentuators seem to have optimal positions in that sense.<Anywhere between minimum and 3-o'clock is good if i/o imp... | |
| Lightspeed Attenuator - Best Preamp Ever? Sorry forgot the other part of your question, as for the position of your Lightspeed control, that's fine it's a good place to be, at around 2o'clock it really starts to increase/rampup the gain rapidly, so you have oodles of gain left.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? You may find that the OTL's are getting loaded down some by the speakers and dropping their output requiring more push from the Lightspeed/CDP. The sensitivity of the OTL was probably judged/measured with an unloaded outputs.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? Just looked at the Merlin VMS impedance graph (Stereophile), at it shows it only drops (over a very narrow band)to a minimum of 6 ohms at around 170hz at 0 phase angle. This is an easy to drive speaker and should be driven off the 8ohm tap. Buy dr... | |
| Lightspeed Attenuator - Best Preamp Ever? Well said Pubul57. If I could just add to that, as I tell many customers, a direct connection between CDP (non tube) and Poweramp is the best/truest transfer of what is recorded on the disc. And the Lightspeed Attenuator comes the closest to that ... | |
| Lightspeed Attenuator - Best Preamp Ever? 10-11-10: Agear CDPs generally suck when driving amps directly due to a lack of current (not merely a function of output voltage as some have suggested above in this thread). Current, from my limited understanding, is needed to reproduce in partic... | |
| Lightspeed Attenuator - Best Preamp Ever? Yes the Burson is also discrete but with +6db of gain, but not DIY, and Nelson's is unity gain and I would say more transparent.As for running a single ended Lightspeed into a balanced amp, you could use something like these on the input of the At... | |
| Lightspeed Attenuator - Best Preamp Ever? Yes, Nelson Pass very kindly did get involved, and designed a nice direct coupled discrete (no yuk opamps) DIY buffer for the Lightspeed Attenuator, because some of his amps were 12k and 20k input impedance, and this made Lightspeed Attenuator mat... | |
| Sennheiser HD 650's thin sounding? Here is a link to the fake HD650.http://fakeheadphones.com/?s=HD650Cheers George |