gbart
Responses from gbart
| safe to run an amp without jumpers? The center channel jumper is not necessary. Leaving it out will do no harm. | |
| Variac vs. Isolation vs. Balanced Transformer? ALL Jea48, after posting I did some research and found out that ANSI Standard C84.1 covers residential voltage regulation in North America and that the limits are ± 5 percent of 120V. | |
| Variac vs. Isolation vs. Balanced Transformer? ALL Undertow, you raise an interesting point about the relationship between line voltage and bias. I have high line at my house and its something I've taken into account when adjusting the bias of my amps. I don't understand though why gear should sou... | |
| Variac vs. Isolation vs. Balanced Transformer? ALL Undertow, although on the high side, 128V is within the ± 10% utility company voltage tolerance in North America. The voltage at my house has always varied between 121.0V and 124.5V depending on the time of day. Coupled with the small no-load volt... | |
| Power consumption questions 78 watts or even 100 watts if the AVR idle figures are understated, is still less than 1 amp, hardly worth worrying about. The other equipment may be another matter, and I would be concerned about any non-audio devices on the same circuit. Neverth... | |
| Power consumption questions The power consumed by the AVR when used as a preamp would be around what it consumes when sitting idling, with or without speakers connected. That is just a few watts, certainly nothing to be concerned about that would impact your 15A circuit. | |
| Need Marantz Tech Get in touch with member "JBLMAR" at AudioKarma, who is a technician who specializes in vintage Marantz repairs.http://audiokarma.org/forums/member.php?u=3187. | |
| New Electrial Wiring.. No "dedicated" or separate grounding rod. A supplementary grounding rod must be bonded to the main grounding electrode. I won't repeat myself as to the whys here. See the following link to previous discussion in a recent thread.http://forum.audiog... | |
| turntable + fluorescent light = crackling speakers I second what Jea48 said. He knows what he's talking about. Flourescent lighting (and light dimmers and ceiling fan speed controls as well) can cause problems with audio. | |
| how many folks have +10kVA trannys before the rig? I have been using balanced ISOs in my living environment for the past 5 years; currently 1 x 2kVA Equi=Tech Q type and 2 x 250VA in a single chassis. I recently completed a rebuild in a taller chassis, to add the second 250VA transformer. The larg... | |
| preamp jumper cables Your friend may have ground loop somewhere in her system. Did she make any recent changes ? | |
| Dedicated line -Ground wire, what size did you use I did some resarch on the Malaysian electrical system. It is the same as United Kingdom. North America also has incoming live and neutral from the power company, and the electrician installs the grounding electrode. The same grounding rules apply ... | |
| Dedicated line -Ground wire, what size did you use I am not familiar with Malaysian electrical codes, but electricity is electricity regardless of where in the World you are, and behaves in the same way. At 150 feet from the meter box, instead of running multiple branch circuits, you could have ru... | |
| Dedicated line -Ground wire, what size did you use Are you saying the dedicated lines are only grounded to the pipe in your backyard ? This is dangerous for two reasons. First, such a setup is highly prone to a lighting strike. Second, should a fault develop in the wiring, the circuit breakers wil... | |
| Krell FPB 600c 700cx 400cx Heatsink noises. My Classé amp once started making a single, loud metallic ping sound whenever it was powered up. It turned out I had torqued the screws holding the top cover too tight after giving the amp a checkup. Loosening them a tad bit solved that issue. |