hifigeek1
Responses from hifigeek1
| Audio Research SP-8 or Quicksilver Full Function ? If my memory serves me the SP-11 is a hybrid preamp where as the SP-8 is very much an all tube preamp except for some transistor constant current sources and filament voltage regulator. The series the SP-8 comes from include the SP-6 and the SP-10... | |
| ARC vt100mkiii Questions? Leonard is no longer at Audio Research. If the bass is a bit lacking, I would suggest your output tubes need to be replaced. I always tell customers if your buying a used tube amp don't expect the seller to re-tube it. My guess is your output tube... | |
| Audio Research SP-8 or Quicksilver Full Function ? The SP-8 is actually an improved SP-6. In fact the final revision of the SP-6E1 is almost identical to the SP-8. I think the SP-8 sounds a little less lumpy in the bass. Also the SP-8 has a tube rectifier in the power supply which can be more gent... | |
| Buy tubes from Audio Research or not The reason you blew a resistor is because an output tube arced. When this happens the others output tubes are not far behind. Therefore, it's to your advantage to replace all the output tubes since they all have the same amount of hours on them. | |
| Buy tubes from Audio Research or not I am referring to output tubes onlyG | |
| ARC Ref-300 or 600 or 210: Which sounds best ? Ref-210. Awesome dynamic slam due to the 6550 drivers. Relatively simple circuit too. Great amp.G | |
| Buy tubes from Audio Research or not The advantage to buying ARC tubes include the 90day warranty, the fact that they have been burned in at voltage for 24hrs. so bias drifting is minimized, and are matched to the amp you need them for i.e. the biasing window of adjustment is optimiz... | |
| Audio Research amps - balanced & non ...And the one big disadvantage of a transformer is phase shift and frequency roll off at the extremes. If the transformer is feeding a poorly designed wide bandwidth circuit then in fact the transformer might actually improve the sound over all. ... | |
| Audio Research amps - balanced & non Twenty seven years ago I was, with my business partner, designing a head amp. At that time I had a meeting with a man named Dene Jensen at his facility. I spoke with him for about an hour. He was the first person to actually design a computer prog... | |
| Audio Research amps - balanced & non Can't answer that as question as I don't know other manufacturers circuit topology. Even with an XLR/RCA converteryou don't have the inverting half of the balanced input so unless the input circuit can compensate for that, your not going to get pr... | |
| Moving Up the ARC Chain: Some Observations Enjoyed your remarks. It amazes me that there are people out there that buy expensive audio equipment without first getting information about the company they just purchased it from. I have countless stories of audiophiles spending ungodly amounts... | |
| Audio Research amps - balanced & non Martykl you are correct! When driving an ARC balanced amp with the SP-10 preamp you will find that you are unable to get symmetrical clipping out of the VT-130. At about half the rated output of the amp, one half of the waveform will indeed softly... | |
| Audio Research LS9 volume control is not working.. You know what I misspoke. I was thinking you had an SP-9. Does the LS-9 have a digital volume control?? If it does it is possible that the chip controlling the volume has been damaged and will need to be replace..My bad. | |
| Audio Research LS9 volume control is not working.. Well that is pretty odd. Not a common failure at all. The volume control in that unit is a 100 k ohm blue alps control. They can get noisy but I have not heard of the wiper in the control loosing contact with the resistive element. The preamp shou... | |
| Leave tubes in phono section if not using it? Some preamps not only want phono tubes left in, but if the tubes are not quiet they can cause issues with the power supply and can actually cause problems for your high level/line stage as well. Best bet is to call George Kaye and ask him. Then yo... |