gs5556
Responses from gs5556
| Unsure how to set levels to use tubes and power amp together By turning the volume to 100% on the Parasound, you are reducing the number of resistors in the path of the signal from the preamp to the amp's input stage. Resistors are noisy and the fewer the better. So the answer is there is less distortion wi... | |
| Distortion on the Power Line Commercial air conditioning systems with variable speed motors are the most likely culprits. They share the harmonic distortion with all their power grid neighbors. | |
| Oscilloscopes - what specs to look for? 100 Mhz should be the minimum, it will be beneficial for viewing parasitic oscillations. FFT analysis is a plus, especially high resolution. Most budget scopes have a math function to do this but the Rhode & Schwarz models have the highest res... | |
| Filter Capacitance The Aegir and the Vidar both share the same transformer and other parts to keep production costs down. Not the ideal amps to make transformer vs power rating comparisons with. | |
| Do WBT spades need break in? Hollow and confused sounds like out of phase. Are you sure you connected the new connectors correctly? First thing I would check is continuity + to + and - to - | |
| Are aftermarket power cords required to be UL / CE approved? There are Christmas tree lights UL listed... and the chances of your house catching fire from them is much much higher than an aftermarket power cord on your CD player.I am almost certain that power cords must be UL listed if they are packaged wit... | |
| Need help in trying to trace cause of distortion I had a similar problem... thought it was the tweeter... traced it to a shorted bypass 150pf cap in the output stage of the DAC. So it could be anything anywhere. It can only be traced by process of elimination. In my case, it was going from singl... | |
| How can I limit the volume on integrated amp If there is a tape record out, this is tied directly to the other inputs. Select an input (say, CD). Take a DMM and place one probe in the left CD input and the other in the left tape out. There should be a resistance of 1k to 5k. If there is a sh... | |
| Gain on preamplifier The max output at 30V could mean at an input of 3 volts it clips. 3 volts in and 30V out is a gain of 20dB. | |
| Beware of NAD M3 Fire Hazard Safety caps do fail short, not enough though to create a fault condition a fuse or breaker can clear. RIFA caps in old Mark Levinson gear are notorious for this. If it's the "round cylinder", it is possible that something conductive shorted the po... | |
| Grounding Speakers Just one caution: If that earth connection on the speaker ties the common (negative terminal) to ground then it would damage an amplifier with active speaker terminal outputs if you ground the speaker. | |
| Voltage question Stepping down the voltage is the correct solution. Running it at 120 volts can cause problems... for example if a secondary voltage somewhere inside the unit is, say, 34 volts and there are 35 volt capacitors, then 120 volts on the primary will in... | |
| Voltage question As Eric says... if the voltage range covers 100 to 120 then no problem.If it only says 100 volts I wouldn’t even plug it in. | |
| The Mytek Brooklyn will not be isolated! If the total USB cable length exceeds two meters it could create problems with some dacs. Maybe that extra cable length is to blame. | |
| What is the reason for my speakers having an audible buzz? Most likely it’s the insulation washers around the rca connectors. If the rca connector comes in contact with the chassis you get a buzz. When you touch the barrel of the cable you are reseating the washer and the buzz goes away. Double check by t... |