Itec TWIN-BOX User manual

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Designed and Manufactured by
ITEC Tontechnik und
Industrieelektronik GesmbH
8200 Laßnitzthal 300
Austria / Europe
TWIN-BOX
INSTRUCTION MANUAL
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TWIN-B
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X_EN_2019
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10_REV_2021
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Desi
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ned and Manu
f
actured
by
ITE
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Tontechnik und
Industrieelektronik
G
esmbH
8
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00
La
ß
nitzthal
300
Austria
/
Europ
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TWIN-B
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N MAN
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Dear Customer!
ITEC TWIN-BOX – yet another product in our wide range of mobile, mains independent
loudspeaker systems.
The TWIN-BOX offers two possibilities of sound distribution:
1. In two directions - to the front and to the rear: carry the TWIN-BOX with the shoulder strap
and use it to expose a group of people to sound.
2. In one direction - using it for sound reinforcements in rooms, halls or outdoors by placing
the TWIN-BOX onto the tripod. Simply do the unique „twist“ to change from two-sided to
one-sided sound distribution; the two speaker casings will engage automatically in their
appropriate positions.
Use the TWINBOX with cable or radio microphones. Music can be played from external devices
such as CD or MP3 players. Optionally, a USB player and / or a Bluetooth receiver can be instal-
led.
However you are going to use the versatile TWIN-BOX, you will certainly add the perfect sound to
many successful events with this compact, high performance tool so easy to handle.
Sincerely,
your ITEC acoustic team

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INHALTSVERZEICHNIS
1. the twist 4
2. how to wear the TWIN-BOX 4
3. how to stand the TWIN-BOX 4
4. how to start 5
5. using a cable microphone 5
6. playback 5
7. using a radio microphone 6
8. music attenuation - optional 6
9. recording 7
10. connecting an external amplifier 7
11. connecting a passive speaker - optional 7
12. recharging the TWIN-BOX 7
13. general advice 8
14. advice on radio microphones 8
15. Controls 8
16. changing batteries of radio microphones 9
17. The integrated USB-Player/Recorder - optional 10
18. The integrated Bluetooth receiver - optional 11

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1. the unique twist
With a simple 180° rotation of the two speaker casings you can change the sound distribution from two
directions into one direction.
Attention: an integrated blocking system prevents a full circle. Twist only as indicated above!
sound in both directions sound focussed in one direction
2. how to wear the TWIN-BOX
simply click the carrying strap shut in the 2 strap eyes on the top side of the TWIN-BOX. Wear it over your
shoulder, one speaker facing the front, the other one the rear. Make sure the controls point outward for your
easy and quick access.
3. how to stand the TWIN-BOX
loosen the lower adjusting screw of the aluminium light-weight tripod and open the legs of the tripod
(as amply as space allows). Once you have found a solid stand, tighten lower adjusting screw.
mount the TWIN-BOX on the tripod, loosen upper adjusting screw, position the pull-out tube at the height
requested and tighten the upper adjusting screw again.
Attention: make sure the TWIN-BOX does not collapse, particularly when it is windy!

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4. how to start
general:
turn on the TWIN-BOX by turning the ON/OFF switch (1) to the right (position ON); the ON/OFF indicator light
(2) will show.
battery mode:
in case the power supply is not plugged in, the TWIN-BOX will be supplied by an integrated rechargeable
battery. The average operating time with a fully charged battery will be 6 to 8 hours.
mains supply:
in case the TWIN-BOX is connected (socket 10) to the mains supply (220V), the red mains indicator (3)
will show in addition to the indicator light (2). As soon as you switch off the TWIN-BOX the battery will start
recharging immediately with the mains indicator light (3) staying on and the indicator light (2) disappearing
(see 12. recharging the TWIN-BOX).
5. using a cable microphone
plug in the cable microphone in the microphone socket (4) and adjust its volume at the volume control for the
cable microphone (6). See 13. general advice.
technical information:
the multi-jack microphone socket (3) lets you plug in microphones with XLR or ¼” jack.
use either dynamic microphones or electret condenser microphones.
connecting balanced microphones: by means of a XLR plug or a stereo ¼” jack.
connecting balanced microphones with phantom supply: by means of a XLR plug.
connecting unbalanced microphones: by means of a mono ¼” jack.
in case you have a long microphone cable, an interference free operation can only be guaranteed when you use
both balanced microphones and a balanced microphone cable.
TWIN-BOX
no phantom voltage
signal
12
31 earth (US = ground)
2 signal +
3 signal - signal
earth (US = ground) earth (US = ground)
¼” stereo jack, balanced
phantom voltage 12V
XLR plug, balanced no phantom voltage
¼” stereo jack, unbalanced
signal
6. playback
the cinch sockets (5A) will accept any tape recorder, CD player, radio, etc. The volume can be adjusted at
the corresponding control (7).

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7. using a radio microphone
switch on the radio microphone and adjust the volume at the corresponding control (8). See 13. general
advice.
when using a radio microphone make sure the batteries are alright:
Using WM-716, WM-802 or TOA: this is the case when the green LED light shows; when the red LED light
shows the batteries should be replaced.
see 12. recharging the TWIN-BOX
8. music attenuation (optional)
should your device have an automatic music attenuation the volume of the music playback will be turned
down while somebody is speaking. You determine the volume of the attenuated playback by means of the
appropriate control (9).
Control position left: while speaking, the music is turned off completely
Control position middle: while speaking, the music volume is halved
control position right: even while speaking, the music volume remains the same, i.e. no attenuation at all.
attenuation adjustment:
while speaking into the microphone adjust the playback volume you want during your announcement.
attenuation will be started when using a radio microphone or cable microphone and takes effect on music
playbacks via the line-in socket (external equipment)

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9. recording
Connect a tape recorder, MD player or speech mike recording system to the ‘PRE OUT’ cinch socket (5B).
You can record cable microphone, radio microphone and music playback. The output level will depend on
how you have adjusted the controls.
10. connecting an external amplifier
the adjusted signal of the ‘PRE OUT’ cinch socket (5B) may be connected to an external amplifier (see 9.
recording). however, in most cases, the integrated radio receiver will be needed. In this case, please plug in
the ‘HF LINE OUT’ (5C) socket.As for volume, be aware that now the signal of the radio receiver/s overrides
your volume adjustments.
11. connecting a passive speaker (optional)
socket 11 (optional) can take another passive speaker. It is then connected in series to the integrated
speakers and should consequently have an impedance of 4 ohms. We recommend the original ITEC
PASSIVE-BOX.
12. recharging the TWIN-BOX
simply connect the TWIN-BOX (socket 10) to the mains (110/220V) and leave the TWIN-BOX switched off.
The power indicator light (3) is on, the ON/OFF indicator light (2) is not. After approximately 10 hours the
battery will be fully recharged. The power indicator light will remain on! The TWIN-BOX can remain plugged
in without causing any damage.
maintenance of the battery
the integrated lead battery is rechargeable and maintenance free; however, a few basic rules ought to be
heeded:
do not store below a temperature of 5°C
recharge after use
not having used the TWIN-BOX for months we recommend you switch it on for several hours and then recharge it.

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13. general advice
• do not place microphones and speakers close to each other in order to avoid acoustic feedback; too
great a distance, on the other hand, between microphone and speaker has an unnatural effect on the
audience (the sound, bear in mind, does not come from the person speaking) and makes speaking more
difficult (sonic speed, as we now know, is not all that fast). we recommend a distance between mike and
speaker of between 5 and 15 metres.
• furthermore, make sure the speaker does not face the mike directly.
• perfect as the loudspeaker system may be, the person speaking ought to annunciate loudly and clearly.
An audience of 10 should be able to understand him perfectly well without any technical support.
• the distance between the mouth and the microphone should be between 5 and 10 cms.
• it is advisable always to have an attendant near the loudspeaker controls, e.g. should the person
speaking suddenly come too close to the speaker with his mike the resulting feedback could be
remedied.
1 ON/OFF switch
2 ON/OFF indicator light
3 mains indicator light
4 socket for microphone (¼ “ stereo jack, XLR)
5A LINE IN cinch sockets (for external audio supply)
5B PRE OUT cinch sockets
(for external recording device)
5C HF LINE OUT cinch sockets
(Radio reception, not controlled)
6 volume control for cable microphone
7 volume control for external audio source
8 volume control for radio microphone
9 AUTO MUTE for music attenuation (optional)
10 battery recharge socket
11 battery level indicator
12 volume control for 2nd radio microphone (optional)
13 On / off switch for Bluetooth (optional)
14. advice on radio microphones
• make sure the batteries of the radio microphones are in good condition
• high voltage cables, iron gates, metal roofs, etc. can cause interference
• do not place the receiver or the microphone/s anywhere near potential interference sources
(Computers, mobile phone etc.)
15. Controls
123
13
4
8
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6
11
10
9
5A 5B 5C 12

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16. Changing batteries of radio microphones
Attention: old batteries are hazardous waste; dispose of properly!
ITEC WM-716-A - hand held microphone
Unscrew cap on lower end of microphone and insert two new batteries.
Note the poles (- pole at spring contact, both at bottom)!
Battery type: 2 „AA“ 1.5V Mignon
Batteries are okay: LED is green
Batteries are low: LED is red
ITEC WT-716-A - button microphone
Open pocket transmitter cover by pressing left and right snapper
simultaneously. Insert two new batteries.
Note the poles (- pole at spring contact)!
Batteries are okay: LED is green
Batteries are low: LED is red
ITEC WM-5300 Handheld Microphone
Unscrew cap on lower end of microphone and insert two new batteries.
Note the poles (- pole at spring contact, once at top, once at bottom)!
Battery type: 2 „AA“ 1.5V Mignon
When you switch on, red LED briefly illuminates.
Battery status on display.
ITEC WT-5300 Pocket Transmitter
Open pocket transmitter cover by pressing left and right snapper
simultaneously. Insert two new batteries.
Note the poles (- pole at spring contact, left)!
Battery type: 2 „AA“ 1.5V Mignon
Battery status on display.
Hereby ITEC Tontechnik und Industrieelektronik GmbH declares that these radio systems comply with the
directive 2014/53/EU. The EU Declaration of Conformity for each product is available at
https://www.itec-audio.com/products/itec-microphones-and-conference-technology/.
Full test reports are available on request.

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17. The integrated USB-Player (optional)
You can connect USB storage media to the USB port ( 4 ).
For playback only files in .mp3 format can be used!
Important: Please only use high-quality USB sticks of reputable manufacturers.
Low-quality storage media may cause malfunctions.
Playback: Use the Start key to start ( 2 ) playback.
To pause, press the Start key again ( 2 ).
Use the Stop key ( 7 ) to end playback.
Previous title: Press the ( 1 ) key.
Next title: Press the ( 3 ) key.
Playback mode: Press the Mode key ( 6 ) to select the repeat mode.
Single: track is played once.
Folder: all titles of the current folder are repeated.
All: all titles in all folders are played and repeated.
Record: Press the record key ( 5 ) to start recording.
Use the Stop key ( 7 ) to finish recording.
During recording, the device creates a folder named „RECORD“, and inside this folder it creates files named
„FILE_001“ with rising numbers. The files are written in MP3 format and can be read, edited and deleted by
any common PC. The recording can be deleted or renamed directly on the device.
Attention:
The amount of free memory is checked before recording starts. This can take up to 30 seconds depending
on the size of the memory (the red LED lights up - Wait mode) - afterwards recording starts automatically (red
LED flashes). We recommend USB-Sticks with a storage capacity of max. 2 GB, then the recording starts
immediatley. They can be used for recordings up to 20 hours in duration - sufficient for most events.
Funktionen nur auf der Fernbedienung
Direct song selection ( 8 ): By entering a number, a song can be directly selected on a USB stick or SD card
and playback can be started.
Mute ( 9 ): By clicking the Mute button the playback will be muted, it does continue playing though. Pressing
the button again cancels the mute function – playback will resume at the previous volume.
Switch USB / SD ( 10 ): No function
Volume ( 11 ): The volume can be changed using the Vol- (quieter) and Vol+ (louder) buttons.
Previous / Next folder ( 12 ): These two buttons allow you to switch to the previous (<<) or to the next (>>)
folder (if several folders are stored on the storage medium).
A-B playback ( 13 ): This function allows you to play a segment between two arbitrarily selected markers in
an endless loop. To use this function press the AB button at the beginning of the desired segment and then
again at the end. The device will immediately begin playback, starting from the first marker (A) until the se-
cond marker (B) and will repeat until the AB button is pressed again.
Delete ( 14 ): You can delete the current song using the DEL button. The delete action cannot be undone.
To delete a file, play it and then press the DEL button. The question “DEL FILE?” will appear on the screen.
Confirm by pressing the DEL button again, thus permanently deleting the file. If you don’t want to delete the
file, press the Stop button to cancel the operation.