Passive Attenuator with Fidelix TruPhase Selector

True Phase True absolute phase
The name of TruPhase is derived from "True Phase," and the absolute phase can be adjusted instantly. Many recordings have this absolute phase, but some are the opposite depending on the recording time, record company, and recording engineer. For those who are sensitive to this difference, it is natural that they all want to listen together. This TruPhase enabled toggle switches to respond to such requests.

This inverting principle turns the number 2 and 3 of the XLR pin over, but this function is the first feature of this machine. It is equipped with a phase-inverting switch that can be switched instantaneously when playing regenerative devices with different phase balance outputs, such as Hot 2 and 3, and records recorded by reversing phase.

Passive attenuator with 21-contact rotary switch
The rotary switch of 21 contacts switches the 20-inch PRP high-quality resistance, making it a high-quality sound. Setting the 2 o'clock position of the clock as standard It is easy to fine adjustment, and the sound quality of the silence volume is also improved. It adopts a full passive professional specification of 20KΩ specifications, about 2dB steps.

Selector switch adopts 8 circuit 5 contacts, completely separating the earth
For general selectors, the Earth selects only signals in common, but the Earth is completely separated by a switch of 8 circuit 5 contacts to switch between them.
It is already well known that the sound changes depending on the polarity of the power supply. This is because the current flows to the earth, but to eliminate this, there is no connection to the earth. In order to relieve the negative effects of the earth current caused by the power supply, this TruPhase separates the equipment, including the ground of the signal line, and it is a culmination that can be said to be an antithesis to the preamplifier based on the experience of Fidelix. However, in Europe and the United States, it is necessary to take the power supply earth in terms of electric shock prevention.

For the vast realism, the left and right earths are completely independent. Silicon diode linkage in the opposite direction from the protective implications, but in the event of trouble, full connection by dip switch is possible.

In addition, if you want to connect more devices, we recommend adding a separate passive input selector or TruPhase. The XLR output can be reversed phase and output both XLR and RCA inputs. On the other hand, RCA output cannot be phase inverted and does not output XLR input. We introduce know-how in detail such as minimization of circuit loop, measures against vibration mode, absorption effect of electromagnetic wave. Mogami electric wire oxygen-free copper and polyethylene coated wire are adopted.

* Noise occurs because hot and earth leave at the same time when input switching. General selectors select only the signal in common with the earth, but since the earth is switched at the same time because of the sound quality emphasis design, since the switch of 8 circuit 5 contacts is completely separated, noise comes out as "vachy" when the input is switched.
※ Please note that it is necessary to lower the volume of the power amplifier or turn off the power.