georgehifi
Responses from georgehifi
| Amp improvement since 1994? I don't call it an improvement one day maybe when technology has let them get to use switching frequencies 10 x higher than now, but class D is the only real new technology I can recall. Everything tube or transistor although bigger, heavier, and ... | |
| is lamm 1.2 enough for sasha The Lamm 1.2 in "1–6 ohms" operation will work quite nicely with the Saha's and sound good and an owner maybe quite happy, but they are still Mosfet, and they just don't do current like a BJT (bi-polar) transistor can. To get the absoulte best out... | |
| Pass x250.8 vs Boulder 850 vs Spectral DMA250 Hi Max65.I would say the best amp of the three you mentioned for the Sonus Faber Elipsa Red is the Spectral DMA250 being BJT (bi-polar)output it can almost double it's wattage for each halving of load impedance all the way down to 2ohms, and that ... | |
| Is it worth refurbishing my tube Marantz? Forget what these guys are saying, just give them to me.Seriously these are great investments to keep, if like you say they were looked after and carefully stored, they could be in great condition. BUT!!! I would not just plug them in and switch t... | |
| Gain Issues for Passive's? Hi Cable designer, A dac with a digital domain volume control is the best way to go, but some need to be used in the top 25% of their full output otherwise "bit stripping" may occur.Failing that a passive pre is the next best. A couple of paramete... | |
| is lamm 1.2 enough for sasha Hi Tabu, your probably aware the the Sasha's while being a great speaker are a pig of a load, if not just read the test measurments Stereophile did on them. esspecially in the lower mid bass, nasty impedance coupled to severe negative phase shift.... | |
| How big a change would this upgrade make? Looking at what you've got Rrolack, I hope you tried direct connection between The PS Audio Dac and your X30.5 poweramp as Paul McGowin has said the dac has what he calls "Resolution perfect volume and balance controls". Maybe upgrade this to Dire... | |
| Best Tube Based Options For B&W 803S Speakers Bullitt731 hi, This is the only impedance graph I could find, and yes it does look to be tube friendly for good push pull tubes with low output impedance. But this graph needs to be read in conjuction with a phase angle graph as well, and there ar... | |
| Recommendations for SS preamp for Pass XA-30.8 "Looking for more revealing and resolving sound with more air around instruments, better/tighter bass, better 3D imaging and wider/deeper soundstage."Alex hi, if you want all the above, just use your Oppo direct into the Pass XA30.8 and use the Op... | |
| Lightspeed Attenuator - Best Preamp Ever? 3 x the price yes, remote yes, same build no, they use the auto-cal "forced matching" circuit to save on production/labour costs as I outlined in my last post.Cheers George | |
| Lightspeed Attenuator - Best Preamp Ever? Yes we tried doing the same auto-calibration system in many different configurations all with the same negative results to the quality of the sound.Documented years ago in diyforum, we tried many auto-calibration circuits for the Lightspeed Attenu... | |
| Preamp gain ??? The Rothwell Attenuators will change (lower) the load impedance his BAT VK5 preamp will see, and being tube it (the load) may come down too far for it to perform at it's optimum, and could roll of the bass early as it is capacitor coupled.[url]htt... | |
| Lightspeed Attenuator - Best Preamp Ever? Hi Lacee, you could change the gold rca's that I use and replace them if you wish with the Furutech Rhodium ones.NB: If you want to do this let me know and I'll give you the dismantling procedure, it's not what you think, and can be tricky without... | |
| Lightspeed Attenuator - Best Preamp Ever? It is the most revealing, easiest to listen thru,least expensive(I 've owned some pretty expensive esoteric preamps over the past 40 years,tube and solid state)and quietest "pre amp"I've ever owned, and will be my last.Are there better ones out th... | |
| impedance match of preamp and main amp. I like big solid state, biased hard into class A with huge power supplies, and that has bi-polar output for great current delivery.The Classe CA400 you have is no slouch either, I would be quite happy owning that even though they are Mosfet output... |