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XENYX QX2442USB/QX2222USB/QX1832USB/QX1622USB User Manual

Possible applications for the Voice Canceller are obvious: you can very simply 

stage background music for Karaoke events. Of course, you can also do this at 

home or at your rehearsal room before you hit the stage. Singers with their own 

band can practice singing difficult parts using a complete playback from a tape 

player or a CD, thus minimizing rehearsal time.

2.3.8  2-Track/USB In and Out

QX2442USB

Fig. 2.15: 2-track connectors and lamp socket

2-TRACK INPUT

The 

2-TRACK INPUT

 jacks (RCA) are designed to accept a 2-track recorder 

(e.g. DAT recorder), or they can be used as stereo line input. The output signal of 

a second XENYX can also be connected here. If you connect the output of a hi-fi 

amplifier (with a source selection switch) to the 2-TRACK INPUT, you can easily 

listen to additional sources (e.g. MP3 player, MD player, sound card, etc.).
Using the voice canceller function (QX1832USB only), you can process all signals 

being brought into your mixing console via these connectors.

2-TRACK OUTPUT

These connectors are wired in parallel to the MAIN OUT and carry the main mix 

signal (unbalanced). Connect this to the inputs of your recording device. The final 

output level can be adjusted via the high-precision MAIN MIX fader.

◊ 

If you connect a compressor or a noise gate post 2-track output, 
the main mix fader will probably not be able to create a satisfactory 
fade-out effect.

2.3.9  Lamp socket (QX2442USB only)

Use this BNC socket to connect a gooseneck lamp (12 V DC, max. 0.5 A).

2.3.10  Level meter and monitoring

QX2442USB

Fig. 2.16: Control room and phones sections of the QX2442USB

2-TR/USB

The 

2-TR/USB

 switch routes the signal from the 2-TRACK and USB inputs to the 

level meter, the CONTROL ROOM OUT outputs and the PHONES jack—this is a 

simple way to check recorded signals via monitor speakers or headphones.

SUB 1-2 or SUB

The 

SUB 1-2

 switch routes subgroup 1-2 to the level meter, CONTROL ROOM OUT 

and phones. 

SUB 3-4

The 

SUB 3-4

 switch performs a similar function for subgroup 3-4 

(QX2442USB only).

MAIN MIX

The 

MAIN MIX

 switch sends the main mix to the CONTROL ROOM OUT and the 

PHONES output as well as to the level meter.

PHONES/CTRL ROOM

Use this control to adjust the control room output level and the 

headphones volume.

2-TR/USB TO MAIN

When the 

2-TR/USB TO MAIN

 switch is depressed, the 2-track input is routed to 

the main mix and thus serves as an additional input. You can also connect MIDI 

instruments or other signals here that do not require any further processing. 

At the same time, this switch disables the main mix to tape output link.

POWER

The 

POWER LED

 indicates that the device is switched on.

+48 V

The red “+48 V” LED lights up when phantom power is switched on. 

Phantom power is required to operate condenser microphones.

◊ 

While phantom power is switched on, do not connect or disconnect 
microphones on the mixer (or the stagebox/wallbox). Connect any 
microphones before switching on phantom power. Additionally, 
monitor/PA speakers should be muted before you activate the phantom 
power supply. After switching on, wait approx. one minute before 
adjusting the input gain so that the system has time to stabilize.

2.3.11  Level Meter

The high-precision level meters always give you an accurate display of 

signal level.

LEVEL SETTING:

When recording to digital recorders, the recorder’s meter should not go into 

overload. This is because, unlike analog recordings, it takes only slightly excessive 

levels to create unpleasant digital distortion.
When recording to analog, the VU meters of the recording machine should reach 

approx. +3 dB with low-frequency signals (e.g. kick drum). Due to their inertia, 

VU meters tend to display too low a signal level at frequencies above 1 kHz. 

You should only drive instruments such as a Hi-Hat as far as -10 dB. Snare drums 

should be driven to approx. 0 dB. 

◊ 

The peak meters of your XENYX display level almost independent of 
frequency. A recording level of 0 dB is recommended for all types 
of signal.

MODE

The 

MODE

 switch determines whether the channels’ SOLO switch operates as PFL 

(Pre Fader Listen) or as solo (Solo In Place).