georgehifi
Responses from georgehifi
| Schiit Bifrost Multibit option Delta Sigma type dacs (redbook dsd, hirez, sacd ect) vs R2R Ladder Multibit dacs (mostly redbook only, there are a couple of very expensive exceptions).This guy hits the nail on the head for me, there are many others also that delve into it far to... | |
| Preamp for Dan D'Agostino Momentum monoblock amps "and thought they should know."Yeah we all know how they fudge a little, in this case it doesn't matter or have any benefit to do so.Cheers George | |
| Gryphon products in the US Don't know how to do it, but the Australian $ is only .72c compared to the $1usd. 28% savingGryphon Australia: If ordering, the mains primary has to be set from 230v to110vhttp://www.gryphon-audio.dk/dealers-distributorsCheers George | |
| Preamp for Dan D'Agostino Momentum monoblock amps From Sterophile tests, not 1mohm but still quite high, tube and passive pre friendly."The input impedance was usefully high, at 200k ohms in the midrange, dropping to 160k ohms at the frequency extremes"Cheers George | |
| Int. Amplifier with Focal 807W Speakers EJR1953, On the Focal Sopra's, I just found graphs for you impedance and phase, the - phase angle is not too bad, but the real measured impedance is quite tough, from 80hz to 120hz it's 2-3ohms, so a good 4ohm solid state with good current ability... | |
| Int. Amplifier with Focal 807W Speakers "Sopra's driven by both tube and solid state electronics. In every case I found the tube equipment to sound "dull" and "restrained", to me not great qualities for these speakers."This would effect the mid bass with amps that can't give good curren... | |
| Int. Amplifier with Focal 807W Speakers Good pickup ZD, and good on NAD for doing a poweramp input, they (integrateds) should all have this feature, and yes a passive VC into the poweramp section will cure your too much gain problem.Cheers George | |
| Schiit Bifrost Multibit option A correction in that list of R2R Ladder Multibit dacs.Delete the EMM labs, it's delta sigma.What should have been in it's place is the DaVinci from Harmonic Light.Cheers George | |
| Int. Amplifier with Focal 807W Speakers Hi Topten, Your Focal 807W are around tested 88db efficiency, about normal. The worst tested impedance is 4ohm between 100hz and 200hz, while this is not too nasty a load by itself for a good 4ohm say 50-100w tube amp. You have to add to that, it ... | |
| Experience with AMR DP-777 My short view of the difference after we (Ason audio Club) did a direct comparision of the DP-777 old v new se both with latest quad board on a high rez system here if want to read about it. We only did RedBook. http://www.diyhifi.org/forums/viewt... | |
| LightSpeed Attenuator vs. GoldPoint SA1X XLR has an advantage only over single ended if the interconnects are very long (EG: 5-10mts) then it's only a noise advantage, if anything single ended in most cases sounds better because of less electronics in the signal path that XLR needs at bo... | |
| Schiit Bifrost Multibit option No, no back to the future for me I briefly stepped my toes into Delta Sigma type convertors (eg: 1bit,bitstream,single bit, Sabre ect) they're all Delta Sigma based. But they couldn't come close to properly implemented R2R Multibit for Redbook rep... | |
| Schiit Bifrost Multibit option Finally a manufacturer that has put sound quality first.Schitt has seen the light? and is now offering an upgrade improved main board of their Delta Sigma based dacs backwards to a Redbook only R2R Ladder Multibit dac. Ahhhh now that's a good Schi... | |
| How important is the amp? Mordante hi, For what amp will sound the best for you really need to see an impedance/-phase angle graphs on them, I've looked for you and there's nothing. Failing to get these graphs, the next best is to email the designer and ask them if they ha... | |
| LightSpeed Attenuator vs. GoldPoint SA1X Yes there are a few clones trying to get around having not to quad match the LDR's which is very labour intensive. Ones I know just dual match (the series and the shunt ldr's) which is half way there to get the best out of it. And then some now d... |