13EURORACK UB1204FX-PRO/UB1204-PRO User Manual

Balanced ¼" TRS connector

strain relief clamp

sleeve ring tip

sleeve ground/shield

ring cold (-ve)

tip

hot (+ve)

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Fig. 4.4: 1/4" TRS connector

¼" TRS headphones connector

strain relief clamp

sleeve ring tip

sleeve ground/shield

ring

right signal

tip

left signal

Fig. 4.5: 1/4" TRS connector for headphones

5. Specifications

Mono Inputs

Microphone Inputs (IMP “Invisible” Mic Preamp)

 

Type

XLR, electronically balanced,

 

 

 

discrete input circuit

Mic E.I.N. (20 Hz - 20 kHz)

 

 

@ 0 Ω source resistance

-134 dB / 135.7 dB A-weighted

 

 

 

 

 

@ 50 Ω source resistance

-131 dB / 133.3 dB A-weighted

 

 

 

 

 

@ 150 Ω source resistance

-129 dB / 130.5 dB A-weighted

 

 

 

 

 

Frequency response

<10 Hz - 150 kHz (-1 dB),

 

 

 

<10 Hz - 200 kHz (-3 dB)

 

Gain range

+10 to +60 dB

 

Max. input level

+12 dBu @ +10 dB gain

 

 

 

 

 

Impedance

approx. 2.6 kΩ balanced

 

 

 

 

 

Signal-to-noise ratio

110 dB / 112 dB A-weighted

 

 

 

(0 dBu In @ +22 dB gain)

 

Distortion (THD+N)

0.005% / 0.004% A-weighted

 

 

 

Line Input

 

 

Type

1/4" TRS connector

 

 

 

electronically balanced

 

Impedance

approx. 20 kΩ balanced

 

 

 

approx. 10 kΩ unbalanced

 

Gain range

-10 to +40 dB

 

Max. input level

30 dBu

 

 

Fade-Out Attenuation1 (Crosstalk Attenuation)

 

Main fader closed

90 dB

 

Channel muted

89.5 dB

 

 

 

 

 

Channel fader closed

89 dB

 

 

 

Frequency Response

 

Microphone Input to Main Out

 

 

<10 Hz - 90 kHz

+0 dB / -1 dB

 

 

 

 

 

<10 Hz - 160 kHz

+0 dB / -3 dB

 

 

 

Stereo Inputs

 

 

Type

1/4" TRS connector,

 

 

 

electronically balanced

 

Impedance

approx. 20 kΩ

 

 

 

 

 

Max. input level

+22 dBu