K+H O 500 C Page 8 Installation And Operation Manual Download | Manualshive

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Page 8

Fig. 1.3/1: Block diagram of the O 500 C studio monitor

uC

VFL

Display

DSP Board

Power Supply Board

Torroidial

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

Switch

I / O - Board

Digital Input

Analog

Input

A/D

D/A

Subwoofer

Output

Digital Controller

High

Mid

Low

Sub

D/A

D/A

D/A

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Summary of Contents for O 500 C

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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