7/29/2023 0 Comments 4 pin din connectorSadly, this is all wasted when you connect your system together with RCA-plugged cables. Many manufacturers point to the great trouble they take to “star ground” everything. A single reference ground point is important so that signal details are not lost in the small, yet significant voltage differences inevitable with separated ground paths. It does not reflect like an RCA plug.įurthermore, the system ground (which should be a stable connection point to which all signals and power supplies are referenced) is absolutely critical to the sonic performance of your hi-fi. The DIN plug has an impedance that is similar to the cable. The complexities of the music and the tones of individual instruments get lost. The result is that the quiet instruments will blur or fade away when the loud ones come along. These reflections have an effect on musical information and are especially harmful to low-level signals, particularly quiet harmonics and underlying instruments, where the ringing that is generated by the loudest instruments will smear the smallest signals. In this situation, the two RCA connectors on either end of the cable act as reflective walls at higher frequencies and bounce information back and forth, trapping the signal and extending the decay time of the signal that is trying to pass from one component to the other. The first difficulty with the RCA connector is that it has a high-frequency capacitive impedance of around 200 ohms unfortunately, the typical cable that connects the two RCA plugs together has an impedance of about 50 ohms. This is true - no matter how good the RCA plug is or whether it is made with gold, etc. Its design properties do not lend themselves to transferring music signals that have very low voltages (less Than 5 volts) of alternating current (AC). The phono plug, or RCA connector, as best as anyone can remember, was designed decades ago as a direct current (DC) power connector. The obvious reason: DIN connections sound better than RCAs… So why do Naim prefer to use DIN connectors? DIN5 (5 pins in a 180 degree arc) - Typically used on source interconnects, inputs and input/outputs.DIN5 (5 pins in a 240 degree arc) - Typically used between a power supply and a pre-amp or phono stage where it carries signal as well as 2 x 24v DC.It can carry signal as well as 24V DC when used between a suitable Naim Power amp and pre-amp where the power amp’s power supply also provides power to the pre-amp. DIN4 (4 pins in a 216 degree arc) - Typically used for pre-amp signal OUT and smaller power amp signal IN. A few reasons why we use DIN connections:
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