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Page 36

7 Technical Data

Acoustical Specification

Freefield frequency response

30 Hz - 20 kHz, +/- 1,5 dB

Self generated noise level at 10 cm distance

25 dB(A)

THD

< 0,5% in 1 m distance from

100 Hz @ 101 dB /SPL

Sound Pressure Level ( SPL )

im halfroom

123,4 dB /SPL @ 1% THD
averaged between 100 Hz und 6 kHz

Connectors

Inputs analog

Number, type

1 x XLR

Impedance elektron. balanced

10 kOhm

Impedance transformerbalanced

10 kOhm

max. input level

24 dBu

Common mode rejection ( CMMR )

> 80 dB @ 15 kHz

Outputs analog

electronically balanced (Sub Out)

1 x XLR

Output impedance

< 70 Ohm

resolution, principle

24 bit AD, D/S

Outputrange steps

16, 12, 6 dBu

Inputs digital

AES/EBU

XLR

S/P-DIF

BNC

Impedance

AES/EBU

110 Ohms (transformer balanced)

S/P-DIF

75 Ohm (unbalanced)

Outputs digital (through)

AES/EBU

XLR

Remote control, Data interface

MIDI, RS232

D-Sub D 25

Baudrate

9600, 31520

IR-remote controle

IR-receiver

Performance

THD @ 1 kHz, + 6 dBu

0,0004 %

Noisefloor

- 126 dBFS

Signal processing

AD-Conversion

resolution, principle

24 bit stacked AD,

∆/Σ

Clockrate

44,1 kHz, 48 kHz

Pre-Emphasis

50/15 µs

DA-Conversion

resolution, principle

24 Bit, D/S

Latency behaviour

basic latency

5-7 ms

filter latency

depends on type and setting of filter

Filter section and Limiter

Factory presets

Filter algorithm

FIR-Filter (finite impulse response)

max. number of filters

depending from filter length, typ. 50

Type of filters

Linear-, mixed linear/minimal,
minimalphase

Содержание O 500 C

Страница 1: ...Auf dem Kessellande 4a 30900 Wedemark Germany Tel 49 0 5130 5848 0 Fax 49 0 5130 5848 11 Email infoklein hummel de www klein hummel de www klein hummel com Digital Studio Monitor Installation and Ope...

Страница 2: ...Page 2 Fig 1 Front view Fig 2 Rear view Fig 3 IR Remote control RC 55...

Страница 3: ...g 12 2 2 Connectors and wiring 14 2 3 VF display on the front baffle 18 2 4 Recall of the loudspeaker parameter setup 18 3 Operation Description of Menus 3 1 Menu structure and concept of operation 19...

Страница 4: ...oid standing too close to loudspeakers that are being driven at high levels If you must be exposed to high sound pressure levels over an extended period of time use hearing protection Mains Connection...

Страница 5: ...to 96 dB per octave which can be said is close to ideal but never possible with analog designs In this case the overlapping frequencies reproduced from both drivers in the x over area is only a few Hz...

Страница 6: ...ther internal or external digital controllers the controller of the O 500 C is programmed with individual filter settings for every driver system which were measured in an anechoic chamber and set at...

Страница 7: ...d then fed to the DSP where all parameters selected are processed in the digital domain When the signal has passed all stages in the DSP it will be D A converted and then sent to the analog power ampl...

Страница 8: ...al Transformer Mains Socket Microcomputer Board Power Amplifier Board IR Decoder RS 232 MIDI High Freq Driver Mid Freq Driver Low Freq Driver Display Board Limit LED Speaker Enclosure DSP DSP Main Swi...

Страница 9: ...channel from the digital data stream EQ Gain at this stage the digital signal can be reduced or raised by an adjustment of the word length to match the peaks or dips in the following parametric EQ The...

Страница 10: ...l Output Stage Peak Thermo Limiter Peak Thermo Limiter Peak Thermo Limiter Peak Thermo Limiter X over Speaker FIR EQ Hi X over Speaker FIR EQ Low X over Speaker FIR EQ S ub Channel Delay T Channel Del...

Страница 11: ...er The following limiter section contains a PEAK RMS limiter and a thermo limiter They have been designed to avoid the clipping of the power amps a too high peak power to the drivers and a limitation...

Страница 12: ...ns and the positioning of the mounting points on the bottom and the sides Mounting on a tripod Fig 2 1 2 shows how the O 500 C is mounted Fig 2 1 1 The dimensions of the O 500 C RESET Rearpanelmay bec...

Страница 13: ...fers a special version for horizontal operation please specify for horn LEFT horn RIGHT where the horn is rotated by 90 degrees and special heatsinks are provided to follow this type of operation This...

Страница 14: ...ludes the mains fuse Above the power socket is the mains switch with a built in controllamp The groundlift switch is provided to separate the Fig 2 2 1 The connectors at the lower part of the rearpane...

Страница 15: ...this connector so that several O 500 C monitors can be interconnected to eachother Chapter 4 shows the complete wiring scheme of this connector and gives a description of the connecting cables needed...

Страница 16: ...cable has a characteristic impedance of 110 Ohms Do not use ordinary XLR cables as normally used for microphones or Line levels To connect the O 500 C to analog sources from consumer HiFi units an ad...

Страница 17: ...2 PIN 3 AES EBU Output To Optional Subwoofer To Optional Subwoofer Digital Consumer Equipment Mixer Preamp RESET ANALOG INPUT SERIAL PORT DIGITAL S P DIF INPUT DIGITAL AES EBU INPUT THROUGH SUBWOOFER...

Страница 18: ...y indicator it will only light up when the digital controller has booted correctly This light may be shut off see chapter 3 3 Vacuumflourescent display blue with 2x24 digits can be adjusted in brightn...

Страница 19: ...electing any of the menu sections the system will show the headline of the relevant menu When pressing the MAIN key for example the K H O 500 C Main Menu headline will appear in the VF display of the...

Страница 20: ...ow shown To get to the next subpage the cursor can be moved by the LEFT or RIGHT cursor key which then will be displayed Examples for the splitting of one menu point into several subpages can be seen...

Страница 21: ...an be left at any time by pressing the SYSTEM MENU key Important note All setups and the current adjustments of all menu points will be stored in the SRAM of the digital controller When the monitor is...

Страница 22: ...he delaytime may be varied by max 999 mS which is equal to 339 90 meters 10 Delay Offset This menu adjusts the overall delay of the monitor in very small steps It will adjust the basic delaytime of th...

Страница 23: ...the writing unlocked appears if the password was correct After moving the cursor to the left display side at Security Level Nr the number of the desired security level is entered by the increment keys...

Страница 24: ...additional confirmation is necessary by pressing the Main key Otherwise it is possible to turn back by pressing the SYS key 8 Service Section This menu has no function in the O 500 C 9 Version No Epr...

Страница 25: ...r 5 2 13 Load EQ Setup In this menu it is possible to store EQ setups An EQ setup contains all adjustments of the menus 3 EQ1 12 EQ10 To recall them simply press the increment keys until the name of t...

Страница 26: ...ese keys can be used to recall the main setups 1 4 which have been stored in menu step 2 of the Main menu see chapter 3 2 IR ON OFF This direct access key will allow for the ON OFF switching of the IR...

Страница 27: ...O 500 C are linked together the MIDI OUT socket of one monitor is connected to the MIDI IN socket of the next monitor the distance between two boxes may be up to 15 meters In menu 2 Midi Settings of...

Страница 28: ...select the option RS 232 The RS 232 interface in general has been provided to allow for a data transfer between the O 500 C and a personal computer The presets for this interface are made in menu 2 Mi...

Страница 29: ...2 6 Listing of the individual commands for the O 500 C Syntax BIN2SYX p x 1 9600 XX Y 1 Int 1 COM1 2 COM2 9600 Baud Rate XX No Of Command taken from table Y Value as taken from table No Of Command Nam...

Страница 30: ...election of well known music It would be advantageous to make a plot of the resulted frequncy response before and after the adjustment so it can be seen from the curves how the frequency curves have b...

Страница 31: ...10 dB in steps of 2 dB each Fig 5 1 3 The Mid EQ funktion plotted from 0 5 dB in steps of 1 dB Fig 5 1 4 The High EQ funktion plotted from 1 4 dB in steps of 1 dB Lowering the level in the bass freque...

Страница 32: ...ples and diagrammes given may not be useful for an in dividual setup In a normal average listening zone room the absorption of materials in the room can be very different and are very much depending o...

Страница 33: ...Q 0 4 0 6 0 8 1 0 Gain 6 dB crossover frequency 1 kHz Frequency range of adjustment 10 20000 Hz When the Peak mode is selected the mid frequency is adjusted in case of the shelving filters or high and...

Страница 34: ...ith some experience it will be possible to see which adjustment will also have some influence on other bands at an octave or more above Finally the result of the adjustment should be checked and verif...

Страница 35: ...parameter setups Note New loudspeaker parameter setups can only be downloaded into the system by erasing the old existing files It is not possible to add new settigs to the list The serial interface R...

Страница 36: ...ge steps 16 12 6 dBu Inputs digital AES EBU XLR S P DIF BNC Impedance AES EBU 110 Ohms transformer balanced S P DIF 75 Ohm unbalanced Outputs digital through AES EBU XLR Remote control Data interface...

Страница 37: ...h Low shelving 6dB oct 12dB oct High Low pass 6dB oct 12dB oct peakfilter EQ for local adjustments Filteralgorithm IIR Filter infinite impulse response Number of filters 4 Type of filters Low Cut Low...

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