User Manual

Phonitor

Control Elements

Mono

The Mono switch creates a sum of the stereo channels. If, per the above

description, you employ this Mono switch along with the Solo, the

overall signal level will be approximately 6 dB below a stereo signal

and mono-switch only. This is normal, since in Solo mode only a single

mono channel is active.

Aside from the above scenario, the Mono switch also offers important

and useful functions in combination with Phase and Solo switches in its

ability to examine the mono compatibility of a mix. While such compati-

bility tests are essentially the same as in earlier eras, they nonetheless

remain an important standard in radio mixing or vinyl production.

Volume

The Volume level control allows you to increase or decrease the

signal level at the headphone output from between +10dB

down to -80dB.

To this end we employ a high-grade ALPS RK27 poten-

tiometer. It distinguishes itself through a high head-

room, very low tolerance and excellent handling

that on the one hand offers sufficient resistance

while, on the other, avoids stickiness.

The Volume control is calibrated in a relative dB

scale that references the input level. The 2-o’clock

position represents 0 dB, where the input signal

is led to the output with an unaltered level (unity

gain).

If a 600 Ohms headphone is connected, a 0 dB Volume

control setting results in ca. 80 dB sound pressure level,

measured at a distance of 3 cm from a headphone transducer.

With a stereo signal the sound pressure level is then at ca. 83 dB.

Mono, Volume