dhl93449
Responses from dhl93449
| Capacitance loading for AT 150 mlx cart Al:Thanks for your comments. To address your points:The phono stage of the GCPH is bipolar. PS Audio uses and Analog Devices microphone pre-amp SSM2019 which has a bipolar input.If it were an FET stage, it would be a non-issue, as FET input stages... | |
| Capacitance loading for AT 150 mlx cart Just got another wild idea, actually from another post where the Soundsmith folks are recommending the use of attenuators between the cartridge and pre-amp. As I posted there, in the late 70's we did this with MM cartridges to increase the effecti... | |
| Capacitance loading for AT 150 mlx cart Thanks for everyone's feedback. Incredibly useful.Looks like no matter what cartdridge I end up with, low capacitance cables may still be required. As Al rightly points out, large low Q resonant peaks at 40KHz can be just as damaging as ones at 15... | |
| Capacitance loading for AT 150 mlx cart Johnyb:Where can I get a 100 pF RCA/DIN phono cable? Most manufacturers of aftermarket versions don't spec the capacitance. ADC made a 100 pF special version back in the day, but this is NLA and I have never seen a used one.FYI the ADC arm's inter... | |
| Impressions of PS Audio GCPH Swanny:No, I was using the single ended outputs. I am not sure about the 6 dB more gain beacuse it depends on how the line pre-amp handles balanced inputs. Uncertain about the JC2, but some pre-amps I know of divide back the 6 dB gain when they co... | |
| Capacitance loading for AT 150 mlx cart Al:Thanks for your input. Since posting I have done more digging into this and it's a bit more complex than I first thought.The site you reference is a bit misleading because his plots don't take into account the effect of the series resistor on t... | |
| Sound Smith Phono Pre Attenuators Back in the late 70's early 80s, I experimented with variable attenuators between the phono cartridge and the phono pre-amp inputs. But this was in the days before the prevalence of MC cartriges, as an audiophile friend of mine observed that phono... | |
| Bargain power amp for PC nearfield speakers? You might be sorely dissapointed by using a revealing SS amp like a Parasound with a PC soundcard. The crappy op amps and electrolytic coupling caps used by these cards will limit sound quality and a high resolution power amp will just emphasize d... | |
| Tube Preamp/solid pwr amp or solid pre/ tube pwr I am a solid state person and I use B&W 830(d)s with Parasound JC1s. These are somewhat power hungry speakers and I cannot imagine these being driven with a 25 Watt tube power amp, at least not to realistic transient levels. For low level list... | |
| Removing power conditioner... I am in the power conditioner use camp. I use prof audio grade Furman power factor correcting conditioners (PF Pro R) that have built in capacitance to aid in current surge demands form the equipment, particularly the power amps. I have one condii... | |
| Parasound Halo jc1 or a21 I have also owned both, and currently use two JC1s with B&W 803(d)s. I agree with Thankful in that the JC1s sound considerably better. The JC1s have better bass articulation and a sweeter high end than the A21. More detailed and better transie... | |
| Amp is plugged to the wall, why use a conditioner? Gdush:I have one Furman AR-15 for two JC1 mono power amps and a HSU subwoofer; and a second one for the preamp, CD deck, and D/A. The power cords for each AR-15 are connected to the same power outlet. Cannot comment on the products you mention bec... | |
| 3 preamps with transformer hum, DC on the line? Jea48From your reference:"It's also worth noting that DC is usually not a problem with toroidal transformers of 300VA or less. Their primary resistance is usually high enough that any DC will have little effect.""Most of the time, the DC offset is... | |
| Powered subwoofers running into power amp? WolfmanThe OP didn't say he was a pro using balanced line 600 ohm outputs, amigo.If he was, I doubt if he would have asked this question. | |
| Amp is plugged to the wall, why use a conditioner? There are a lot of GOOD reasons to use a line conditioner. Irrespective of audible effects, a good line conditioner like the Furman products filter a lot of line voltage transients that can damage your equipment. These transients over time can dam... |