audio distribution amplifier audio - avr · 2015-01-26 · audio press box is a press conference...

The World’s Best Professional

Audio Distribution Amplifier

Superbly Made Electronics

And Powerful Performance

Audio

Pre

ss B

ox

.co

m

AudioPressBoxAudio Press Box is a Press Conference Audio Distribution Amplifier

ProfessionalAudio Press Box is a sophisticated tool for professional audio distribution at

press conferences, presentations and other events, where audio signals have to

be transmitted or recorded by multiple TVs, cameras, audio recorders, reporters

and/or journalists. It can be fed directly from a microphone on lectern or from a

mixing console. With Audio Press Box, you will have no more hassles with placing

microphones.

Easy to usePerfect signal conditioning means securing a high quality, constant and identical

signal for all connected users, without possibilty of interacting. High ergonomics

and ease of use are key points for safe and “mistake-free” operation, even for less

technically qualified operating staff.

IndependentOptional rechargable battery operation saves installation time and reduces the

number of cables runing across the room, allowing Audio Press Box to be placed

close to the users.

IdeaIdea of inventing the device, which makes sound distribution during press

conferences simplier and more efficient came on the mind during one press

conference. We was inspired by some late comers, who were disturbing the

speaker by connecting their recording devices during conference. From first

ideas and drafts produced in our invention center has been created our first

AudioPressBox. We presented this product first during the ISE 2012 exhibition in

Amsterdam. Positive feedback inspired us to enlarge useability and to inventing

new models and types of AudioPressBox. After introducing at exhibitions

InfoComm Las Vegas and Orlando, PLASA in London and Prolight+Sound in

Frankfurt. AudioPressBox is more and more popular signal distribution amplifier

and it gains customers all over the world.

Audio

Pre

ss B

ox

.co

m

LINE

JOURNALIST

BROADCAST

TV

PA SYSTEM

CONFERENCE

CONTROL CHECK

MIC

System diagram

Technical description

• UniversalMIC/LINEinput–balancedinputwith26dBPAD,RFprotection

and switchable phantom power

• Built-inswitchablehigh-passfilter160Hz–toreducepopsandLFnoise

• IntegratedCompressorandLimiter–tomaintainconstantoutputlevel

• Testsignaloscillatorhelpstosetmaxlevelsbeforerecordingtheconference

Usage

Press conferrences with many TV companies, reporters, camera operators and

journalists. Plug & play usage allows users for connecting or disconnecting

another receivers without disturbing the others or signal distortion.

CONFERENCE PRESS

Audio

Pre

ss B

ox

.co

m

Broadcast & Mobile

APB-116 PPortable version with 16 MIC/LINE Out, Battery option.

MIC(phantompower)/LINEinput–balancedinputwith26dBPAD,

Built-inswitchablehigh-passfilter(160Hz),IntegratedswitchableCompressor

and Limiter, Constant level test oscillator, Headphones control output,

16MIC/LINEindependenttransformerbalancedoutputs,Built-Inrechargablebattery

provides up to 12 hours of full-load functionality.

APB-P112 SBPassive Stagebox design with one LINE Input, 12 MIC Out.

12MICOutputs,balancedandindependentlytransformerisolated,OnebalancedLINE

Inputwithmax.inputlevel+24dBu,NominalOutputlevelis-38dBu(0dBuontheinput).

With APB-P112 SB you can go anywhere and connect to any mixing console. Light

in weight, professional design and good looking. APB-P112 SB offers 12 microphone

transformer isolated outputs to use at once.

With any AudioPressBox you get perfect signal levels without any distortion or

interference.

Audio

Pre

ss B

ox

.co

m

APB-124 SBStage box design with 24 MIC/LINE, Input link, Battery option



and Limiter, Constant level test oscillator, Headphones control Output, Input link,

24MIC/LINEindependenttransformerbalancedoutputs,Built-Inrechargablebattery


APB-116 SBStagebox design with one LINE Input, 16 MIC/Line Out, Battery option

OnebalancedLINEInputwithajustablegain-10db–+20dB.BuiltinselectableHigh-

PassfilterandswitchableCompressorandlimiter.NominalOutputlevelisselectable-6

dBu,0dBu,+4dBuand+6dBu.

With any AudioPressBox you only get perfect signal levels without any distortion or

interference. With optional built-in rechargeable battery module, you are independent

on electricity. Dual High-Pass filter helps to reduce the low-end rumble

Audio

Pre

ss B

ox

.co

m

APB-448 SBStage box with 4 routable inputs and 48 MIC/LINE Out, Driver link,

Battery option

FourroutableMIC(phantompower)/LINEinput–balancedinputwith26dBPAD,


and Limiter, Constant level test oscillator, Headphones control output,

48MIC/LINEindependenttransformerbalancedoutputsin2separatedgroups:24foreach

group,twooutputsforeachgroup,Driverlinkto4APB-024R-EX,APB-008IW,APB-008OW,

Upto96independentA/A+B/Btransformerbalancedoutputs,Built-Inrechargablebattery


Application Diagram:

APB-448SB

Out ABalanced Isolated Outputs

Mic Level -20dBu

Line Level +6dBu

Out BBalanced Isolated Outputs

Mic Level -20dBu

Line Level +6dBu

1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24

Mic Line Mic Line Mic Line Mic Line






1 2 3 4 5 6 7 8 9 10 11 12

13 14 15 16 17 18 19 20 21 22 23 24







JOURNALISTBROADCAST TV

JOURNALISTBROADCAST TV

OUT A...

(UP TO 24)

IN 1 IN 2 IN 3 IN 4

OUT B...

(UP TO 24)

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB] A B

Osc AFL AFL

Phones

Volume

APB-448SB

Charge

100%

50%

25% ON

OFFLow

Battery Power

[dB]

ON

OFF

Hold5s

- 12 -

- 6 -

- 0 -

- -6 -

- -12 -

- -24 -

- -48 -

[dB]

Output

EXT A

EXT B

Audio

Pre

ss B

ox

.co

m

Installation

APB-116 RRack unit design with 16 MIC/LINE level Out, Input link


Built-inswitchablehigh-passfilter(160Hz),IntegratedswitchableCompressorand

Limiter, Constant level test oscillator, Headphones control output, Input link,

16MIC/LINEindependenttransformerbalancedoutputs.

APB-208 RRack unit design with 2 routable MIC/LINE inputs and 8 MIC/LINE Out,

Driver link

TworoutableMIC(phantompower)/LINEinput–balancedinputwith26dBPAD,


Limiter,Constantleveltestoscillator,Headphonescontroloutput.8MIC/LINElevel

(26dBPAD),Independenttransformerbalancedoutputsin2separatedgroups,Two

outputsforeachgroup,Driverlinkto4APB-024R-EX,APB-008IW,APB-008OW,Upto

96independentA/A+B/Btransformerbalancedoutputs.

Audio

Pre

ss B

ox

.co

m

APB-400 R Rack unit design with 4 routable MIC/LINE inputs, Driver link

FourroutableMIC(phantompower)/LINEinput–balancedinputwith26dBPAD,


Limiter, Constant level test oscillator, Headphones control output,

Driverlinkto4APB-024R-EX,APB-008IW,APB-008OW,Upto96independentA/A+B/B

transformer balanced outputs.

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB]

Clip

6

0

-6

-30

3

6

12

18

A+B

A B

PFL

PAD +48V HPF COMP

Out to

Signal GR[dB] A B

Osc AFL AFL

Phones

Volume

APB-400R

Charge

100%

50%

25% ON

OFFLow

Battery Power

[dB]

ON

OFF

Hold5s

- 12 -

- 6 -

- 0 -

- -6 -

- -12 -

- -24 -

- -48 -

[dB]

Output

APB-024R-EXOut A

Out B

Outputs

1 2 3 4 5 6 7 8 9 10 11 12

1 2 3 4 5 6 7 8 9 10 11 12







APB-024R-EXOut A

Out B

Outputs

1 2 3 4 5 6 7 8 9 10 11 12

1 2 3 4 5 6 7 8 9 10 11 12







MIC 1(or AUX)

EXT

A1

EXT

B1

EXT B2

EXT A2

UP TO 6 UNITS...

MIC 2(or AUX)

MIC 3(AUDIENCE)

MIC 4(INTERPRETER)

Out A

Out B

008-OW

1 2 3 4

1 2 3 4



Out A

Out B

008-OW

1 2 3 4

1 2 3 4



Application Diagram:

Audio

Pre

ss B

ox

.co

m

Extender

APB-008 IW Wall extender with 8 MIC/LINE Out

8MIC/LINEindependenttransformerbalanced

outputs in 2 separated groups. Four outputs for

each group.

APB-008 OW Wall extender with 8 MIC/LINE Out

8MIC/LINEindependenttransformerbalanced

outputs in 2 separated groups. Four outputs for

each group.

APB-024 R-EX Rack unit design 24 MIC/LINE Out

AudioPressBox rack extender unit with 24 high quality transformer isolated outputs, each

switchablebetweenMICorLINElevel.Twogroupswithupto12outputsforagroup.Routing

isconfigurableonthemainunit.APB-024R-EXisextenderunitforAudioPressBoxeverywhere

you need more outputs and where you need to distribute your signal all over the room or

multiplerooms.YoucandecideifyouneedMICorLINElevelforeachoutput.Withmore

APB-024R-EXsyoucancascadeyouroutputsupto96alongwiththebasicunit.

Audio

Pre

ss B

ox

.co

m

Accessories

RC 3,5 - 1 Recording cable for AudioPressBox

RC3,5–1issinglecabledesignedforconnecting

recordingequipmentwith3,5mmjackMICor

LINEinput,regardlessStereoorMonoinputjack

configuration.

Specialelectroniccurcuitbuilt-inXLRconnector

provide level and impedance matching and DC

blocking.

RC 3,5 - 2 Recording cable for AudioPressBox

RC3,5–8iseightfoldcabledesignedfor

connecting eight separate recording equipment

with3,5mmjackMICorLINEinput,regardless

StereoorMonoinputjackconfiguration.

Specialelectroniccurcuitbuilt-inXLRconnector

provide level and impedance matching and DC

blocking .

CASE-116PAluminum hard case for

AudioPressBox APB-116P

CASE-116PisforcarryingAPB-116Pand

accessories(cables,charger,etc.)

- Heavy duty case

- Solid aluminum frame

- Locking clasps

- Divider for accessories

Audio

Pre

ss B

ox

.co

m

For: APB-116P, APB-124SB, APB-116R

For: APB-448SB, APB-208R, APB-400R

For: APB-116SB

Block diagram

Audio

Pre

ss B

ox

.co

m

InputGain: LINE: -4/+36dB

MIC: +22/+62dB

Max.inputlevel: LimiterON

MIC: +10/-30dBu

LINE: +36/-4dBu

Limiter OFF

MIC: -2/-42dBu

LINE: +24/-16dBu

Phantomvoltage: 24 V

Inputimpedance: MIC: 2,4kOhm LINE: 3,5kOhm

Inputconnectors: Balanced,XLR

InputLink: 1x(APB124SB)

Nominaloutputlevel: +6dBu

Maximumoutputlevel: +20 dBu no load

+14dBu600Ohmload

Outputimpedance: MIC:220Ohm LINE:600Ohm

Transformerisolatedoutputs: Yes(eachoutput)

Outputconnectors: Balanced,XLR

Controls: MIC/LINEPAD,Inputgain,Phantom,High-passfilter,Compressor,Oscillator,

Phones level, Power, Output PAD

Indicators: Input clip, Phantom power, Output level, Gain reduction, Power, Battery

status(withbatteryoption)

Oscillatorfrequency: 1kHzsinewave(nominaloutputlevel)

THD+N: 0,025%,1kHz,+10dBuinputlevel

Powersupply: 24 V DC, 1000 mA external adaptor, without battery option

Built-Inrechargablebattery: optional

Battery: Li-ion,14,4V,2200mAh(optional)

Li-ion,8,2V,2200mAh(optional)

Batteryoperatingtime: >10hrs(fullload)

Chargetime: approx.3hrs

General technical specification:

AudioPressBox® is one of the division of Mediatech Central Europe Group.

MediaTechCentralEuropeisasoundspecialistinthesupplyandapplicationofprofessionalaudio,

communicationandmultimediatechnology,since1994.

Today, after rich history filled with professional experiences and many reached goals, we are honored to

present us as the largest company in audio hardware market in our country.

Quality in cooperation and professional customer care provided by our experts, continuously raise our

vision, mission and strategy on a higher level. We will make sure that you are always good to hear and see.

MediaTechCentralEuropea.s.

Drienova34

Bratislava82102

Slovakrepublic,EU

Tel.:+421243417777

Fax:+421243427777

E-mail:[email protected]

www.audiopressbox.com

audio distribution amplifier audio - avr · 2015-01-26 · audio press box is a press conference...

Documents