almarg
Responses from almarg
| Dazed & Confused Just this week I saw Paul McGowan of PSA audio imploring viewers to ALWAYS turn DACs up all the way and leave the volume control to the pre-amp. However Paul’s DACs (and the vast majority of others) do not put out maximum voltages anything like 1... | |
| Should I defrag my 1.5 TB HDD BEFORE transfering files to a SSD? OR... SSDs should never be defragmented, as doing so would not serve any useful purpose and would just accrue against the finite (although very large) number of writes an SSD can perform during its lifetime.In fact the defragmenter that is built into Wi... | |
| Phono Preamp Tube Rush Do I conclude from the talk about Johnson noise that (1) MM cartridges with their inherently much higher internal resistance and much much greater inductance will be noisier than MC types? What matters, of course, is signal-to-noise ratio, and of... | |
| Phono Preamp Tube Rush Most LOMC cartridges have bandwidth well past 20KHz- most have no worries going to 40KHz. Hi Ralph,Yes, I realize that. But what I was attempting to calculate was an approximate figure of the amount of Johnson noise (aka thermal noise) attributab... | |
| Class A 30 Watt Amps: Are they enough to drive my book shelfs? Will the amp run so hot that it generally becomes impractical for this space? Since the amp will be operating in class A the great majority of the time the amount of heat it puts into the room will correspond to its 200 watt specified power consu... | |
| Phono Preamp Tube Rush I might wonder whether one can model a phono cartridge based solely on its internal resistance, in that calculation. @lewm, that’s a good point. But the inductance of my cartridge is spec’d as 25 uH at 1 kHz. If we assume its inductance is also a... | |
| Phono Preamp Tube Rush Almarg, What formula did you use to calculate the Johnson noise of a phono cartridge? @lewm Hi Lew,I performed that calculation in two different ways, and got the same result both ways:Method 1: The section of the Wikipedia writeup on Johnson no... | |
| Phono Preamp Tube Rush daveyf 11-11-2019Anyone here actually own a tube phono stage that is so quiet that when you place your ear right up against the speaker and the phono stage is active...and at some mild gain, but with no music playing ( or even at no gain) they hea... | |
| Dazed & Confused This was the manufactures response to your suggestion Al:“The DAC has hot outputs that may be too much for your integrated. I would suggest a level of 55 and if that is still too much then go RCA at that level.”I tried RCA and what I got was a low... | |
| Class A 30 Watt Amps: Are they enough to drive my book shelfs? @atdavid, the Pass XA30.5, as well as the XA25 which I use, and I believe most or all other Pass XA amps, operate in class A up to and somewhat beyond their specified power ratings. (I say "somewhat beyond" in part because those ratings are specif... | |
| Phono Preamp Tube Rush I use a Herron VTPH-2 (not 2A) in conjunction with an AT-ART9 LOMC cartridge rated at 0.5 mv, with the Herron's stock tubes and no loading plugs. If I turn the volume control in my system to a setting slightly higher than I would ever use (whic... | |
| Dazed & Confused 1. I have balanced connections between my DAC & amp.2. The W4S DAC volume is set to maximum, which is 65. Either or both of those factors could very conceivably be the entire cause of the problem, IMO, given the 1K balanced input impedance of... | |
| Dazed & Confused Some questions that are unrelated to speakers, but depending on the answers might be related to the problem:1) Is the connection between the DAC and the Coda integrated amp balanced or unbalanced? It appears that the amp has an unbalanced input im... | |
| Dazed & Confused Looking at the photos linked to above, and also at the photo in your system description thread which shows the speakers, my suspicion is that the major contributors to the problem are:1) The listening chairs are too far off center, assuming you do... | |
| Confused and need help 2x parasound A21 I presume this means that you have used the two A21s in bridged mode. The manual for the A21 states as follows:You should not connect a speaker with an impedance of less than 8 Ω to the A 21 when it is configured for bridged mono... |