almarg
Responses from almarg
| Need RCA to XLR adaptor for digital cable.Help Yes, something like this SPDIF to AES/EBU converter, costing $90, is probably the best way to go:http://www.bhphotovideo.com/c/product/395533-REG/Hosa_Technology_CDL_313_CDL_313_Data_Link.html#specificationsHowever, if your Fostex is a CR500 or si... | |
| Question re matching pre and power amp impedance.. Thanks for the kind words, AJackson1. No, I'm just a humble audiophile, and a retired electronics engineer with extensive experience designing and supervising design of analog and digital circuits. In defense avionics, though; no relation to audio... | |
| Question re matching pre and power amp impedance.. Yes, the 10X rule of thumb is commonly cited as a minimum acceptable ratio of amp input impedance to preamp output impedance. A considerably higher number (such as 20 or 30X) is preferable, though, if possible (and it is possible more often than n... | |
| Any Other Low Output MI Cartridges Out There? I was thinking Grado made some, but I may be wrong.No, you were right. The five different cartridges in their Statement series are all moving iron's, with 0.5 mv output.Regards,-- Al | |
| Improper ground On several occasions I offered to switch the breaker off because he was just charging ahead with live wires.Electrician had "really shaky hands"Somehow I think there is a connection there (no pun intended)!His helper got electrocuted when trying t... | |
| Different length digital cables all true 75 ohms? Yes, it makes one wonder.I would expect that the significance of the connectors being close to 75 ohms, as they are with the Canare's, would be subtle, and would probably be insignificant if the dac has good jitter rejection capability.If the cabl... | |
| How to split pre out to connect power amp and sub Actually the one I suggested was 20 watts, 8 ohms. The wattage rating is the MAXIMUM power that the resistor is rated to handle. A margin of at least 2 to 1, and preferably more, should be allowed between the wattage rating of the resistor and the... | |
| Solid state recorders The better flash-based audio recorders, which certainly include many at that price level (and less), are wonderful performers. They also represent mature technology, having been introduced about 6 or 7 years ago, when flash storage was vastly more... | |
| Different length digital cables all true 75 ohms? The 75 ohm impedance rating of a digital cable does NOT mean that its resistance is 75 ohms. It's resistance for any reasonable length is likely to be well under one ohm, and insignificant in relation to the source and load impedances of the two c... | |
| volume level and xlr According to the i-7 manual, each input has an independently configurable volume offset, programmable between +10db and -10db. Have you tried adjusting that, or checking to see what it is presently set at?Re question 2, it depends on a lot of thin... | |
| Light bulbs are constanly burning out The only time the lights dim is when my wife switches on the kettle (1500 watts). The kettle is plugged into the same breaker as the plug that the lights in the main living area are connected to. If I take a reading on that plug the voltage drop i... | |
| Light bulbs are constanly burning out The only time the lights dim is when my wife switches on the kettle. The kettle is plugged into the same breaker as the plug that the lights in the main living area are connected to. If I take a reading on that plug the voltage drop is from 123.8 ... | |
| Light bulbs are constanly burning out Nice explanation, Jim. Thanks!So if he has a 3V differential between ac neutral and ac safety ground at the particular outlet he measured, let's make the following rough assumptions:-- 100 feet of wiring from the outlet to where those two lines ar... | |
| How to split pre out to connect power amp and sub You're welcome!Probably anything between 4 and 12 would be fine. Not sure about 16. Too high is what can be harmful.From this link:The thing you CAN do to hurt a tube output transformer is to put too high an ohmage load on it. If you open the outp... | |
| How to split pre out to connect power amp and sub Not sure if a typical hifi shop would have a suitable resistor or equivalent device. They commonly have accessories to convert speaker level outputs to line-level signals, but those are usually designed for use with solid state amps, and present a... |