georgehifi
Responses from georgehifi
| Recommend Class a Amp I think maybe it's because of the Parasound name having too many entry level products.They are very popular in Australia, they get snapped up s/h as soon as they are listed which is very rarely. And they will drive anything, as they keep almost do... | |
| Input sensitivity, Gain and Preamp matching Hey Al good to hear from you, as you stated, yes a few of the quietest early cd's have low recorded volume and your -6db seems about right for these. So even if Pani has source outputs 2.5v this will be ample for 90% of the rest of recordings to ... | |
| Is my preamp useless? So True!!!Cheers George | |
| Input sensitivity, Gain and Preamp matching Pani hi, before doing anything suggested, what are your source/s, maybe they have the output volts that's needed >2.5v as many do these days, even phono stages Your amp is high at 2.5v, the input impedance at 47kohm is fine, if your source/s ha... | |
| Is my preamp useless? 03-31-15: MarqmikeThanks Grannyring for the comments. I am looking forward to hear how the LSA works for you this timeDoubt it will be a favourable outcome, "once again". this will be the 4th time, why keep trying??? Knowing Grannyring's obsessio... | |
| Is my preamp useless? Here is the graph of a 10kohm passive output impedance.On the left (vertical axis) is it's output impedance, for the given volume resistance (horizontal axis). As you can see at half volume rotation it is at the worst 2.5kohm output impedance, eit... | |
| Is my preamp useless? Just to give an example, A 10kohm passive preamp which all solid state sources can drive, has a worst case 2.5kohm output impedance. In the worst case of 2.5kohm, this passive preamp driving reasonable quality interconnects of 100pf per foot at 2m... | |
| Is my preamp useless? Just to add to the above, when these high capacitance interconnects (>200pf per foot) are used, they can cause a high frequency filter, not only with passives but also with the many tube preamps.This is another reason they have no place in hi-e... | |
| Is my preamp useless? Scare tactics of the capacitance of interconnects with passive preamps are off the mark. As most good interconnect cables are less than <100pf (picofarad) per foot. And at 1-2mts are fine. Only when you get into cheap nasty cables do these scar... | |
| Recommend Class a Amp Excuse my ignorance, as I'm from down under (Australia), but why every time I suggest to you American lot, the Parasound JC1 monoblocks I always get a stoney silence?These John Curl designed beauties are a steel new and s/h, when you live in US. W... | |
| Recommend Class a Amp Stereophile boys say you need around 200 watts and good current drive for the babies. That means a big solid state amp if you want the Class A sound as well. The only one I can think of that would be a reasonable price S/H is a pair of Parasound J... | |
| Theta Miles owners: Using preamp or direct? Many of the electronics of that era, were not the best either, and it was also the infancy of metal dome tweeters which were in your face with their resonant peak in the HF. So I would not solely point at the Theta Miles having the problem. Becaus... | |
| Is my preamp useless? Going direct like the OP can do, will not add or subtract anything that the source is presenting. As his source (PSA) has perfect impedance match and voltage output to drive his Cary amps and the "interconnect". Any active pre that is put between,... | |
| Theta Miles owners: Using preamp or direct? Maybe it was his amp! As going direct will show the tonal colour of it and the speakers, as there is no preamp in the way to colour the sound.And yes I have found the Theta Miles very neutral, transparent and dynamic when going direct, as well imp... | |
| Theta Miles owners: Using preamp or direct? Hi Jsbach1685Your Theta Miles has a very nice low 50ohms output impedance plus 4v from the rca output, or 8v from the balanced This means it will drive any poweramp direct no trouble at all from either output. So save your money and use it direct ... |