audioengr

Responses from audioengr

Why Expensive power Cables when Romex behind Wall?
It's true that some components are designed to be invariant of the power-line voltage. Some Linn equipment is like this, particularly when switching power supplies are used. However, in most amps, the linear power supply is not even regulated, and... 
Why Expensive power Cables when Romex behind Wall?
Even though the cord is short, it still contributes to the overall inductance. ROMEX has up to 10 times the inductance of good after market power cords. If the the last 6 feet of a 20 foot run to the panel is an after-market cord, it will add very... 
What's better: RCA or XLR?
Depends on your components. The designs of balanced outputs can vary greatly.Balanced connections have two signals, a positive and a negative signal, which are inverted versions of each other. They carry the signal currents. At the destination, th... 
Do power cords really matter?
There are certainly a class of cables that do have various types of filtering. However many just attempt to minimize resistance and inductance. These tend to be optimum for power amplifiers. 
How does length affect power cable sound quality?
In systems like the power feed or amplifier feeds, the output impedance of the power source is very low. Because of this, the capacitance between the two conductors is not important. The series inductance is important because current transients th...