almarg
Responses from almarg
| speaker impeadance question Hi Keith,First, it’s probably worth defining these terms for the benefit of others who may read this thread.An amplifier which provides "constant voltage," aka one that acts as a "voltage source," is one that for a given input voltage provides an ... | |
| Ears hurt when listening after changing speakers Nkonor 9-1-2019Any of you technical guys see any issues with pairing the Spectral pre with the Pass amps ? First, let me add my sincere best wishes to the thoughts others have expressed about the challenges you are facing. After looking at the sp... | |
| speaker impeadance question Hi Bruce (Bifwynne),McIntosh uses autoformers providing multiple output taps on many of their solid state amplifiers, and as far as I am aware they are unique in that respect. The rationale is presumably to make life easier on the output stage whe... | |
| speaker impeadance question No, you won’t hurt anything by using the 8 ohm taps.In some other situations, involving amps that are much less powerful and/or speakers that are much less sensitive, the reduction in the maximum power capability of the amp that would presumably r... | |
| speaker impeadance question :-)Best,-- Al(For others who may not be aware, Duke's statement just above was made famous by "Roseanne Rosannadanna") | |
| speaker impeadance question Hi Duke,I'm afraid I must offer another correction, this being a matter of considerable significance :-)It was actually a different character, "Emily Litella," who concluded her commentary on Saturday Night Live with the words "never mind." As I'... | |
| speaker impeadance question Lots of excellent and informative responses above, except that I believe some of them have been made without the realization that the OP’s monoblock amps are solid state. And the multiple output taps are created via autoformers, the result being t... | |
| Amp problem Tubes can also cause popping but since it moves to the other channel with a cable swap seems unlikely. The tubes in that preamp are all twin triodes (12AX7’s and 12AT7’s), so it’s possible that one of the two sections in a tube (serving one channe... | |
| Ears hurt when listening after changing speakers I'm wondering if the problem may be caused by ultrasonic frequencies the Avior is able to reproduce but the other speakers were not able to reproduce. The Avior's frequency response is spec'd at 25 Hz to 30 kHz (-3 db), and Stereophile measured t... | |
| Audio Research VT100 MK1 and LS15 HELP!!! @jea48 Wow! Yes, it appears you were right that you were wrong :-)And between Chip's comment earlier and my not looking closely enough at the rear panel photos I mentioned it appears that I was wrong as well. What I assumed were separate conn... | |
| Audio Research VT100 MK1 and LS15 HELP!!! The jumpers install into the balanced output jacks.... They would have to be removed before the balanced cables could be plugged in. @jea48 Jim, no, I'm pretty certain that you were right the first time. The OP said that his amp is a VT100 Mk... | |
| Audio Research VT100 MK1 and LS15 HELP!!! Would it damage the system if i dont have jumper connected while using rca? No. It just wouldn't be sonically optimal, and it might result in a bit of hiss and/or hum. Regards,-- Al | |
| Audio Research VT100 MK1 and LS15 HELP!!! @Kentrent, the jumpers must be present on the rear of the amp (in the two places where it says "use jumper for single-ended") if and only if the connections between preamp and amp are made with RCA cables. The jumpers must be removed if the connec... | |
| Audio Research VT100 MK1 and LS15 HELP!!! The jumpers do not go in the XLR socket. The receptor is separate and apart. See the manual. Excellent point about the jumpers, Chip. Since the OP has been using balanced interconnections between the preamp and the amp he should verify that j... | |
| What do you consider "loud" for your system? I mostly listen to classical music, with a small percentage of my listening being to pop and rock and miscellaneous genres. My average listening level at the listening position is around 75 db. However, more than a few classical recordings in ... |