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1. SUSTAIN RELEASE RANGE ORORO 0 ITO EXT CLOCK AS MASTER Set the master s he black push bu he other sync set yne source to EXT and insert a cable with a clock into the EXT CLOCK jack The pedal reacts to rising edge clock signals from OV to at least 3V Use tton to send start stop bytes MIDI and start stop gates DIN on he next rising edge trigger The EXT CLOCK input is a switching type jack that overrides tings AUDIO OUT Ko t gt O rQ NG Sd 5 AEL Lys n n Se CEO OHOO aN aN SUSTAIN E cS r ri Elle TO LO FI PWM OSCILLATOR Use the LFO as a ing ENV into the n oscillator and a loop LFO SYMM to modulate the pulse width of the waveform Experi ment with other wave shapes for different sounds and adjust the speed to change the pitch CV OUT CVOUTI se nP E Caa CHOLERE E 2p Feanadancae er Z ITO LFO ENVELOPE PING PONG LFO Envelope Ping Pong Take a standard 1 4 patch cable inverted LFO outp and connect it from the ut to the envelope gate input ENV GATE Set the LFO to SYNC and chose the square wave shape Play around with the LFO symmetry knob Your envelo2. CV Output ENV INV 2 The ENV INV CV output is the inverted enve lope output Signal ranges from 7 6V OV Analog Clock Output DIVISION 6 This is the division output sending a 50 duty cycle square wave signal depending on the setting of the rotary DIVISION switch The DIVISION output is twofold and both outputs are buffered RH 301 A CLOCK DIVISIGN DECAY ree n RANGE Control to change the time range on the A D and R stages By turning this knob clockwise the envelope becomes slower and fades from a snappy linear to a logarithmic behaviour ENVMopE Slide switch to chose between master clock sync division sync or free running mode Rear Panel Controls Data MIDI THRU This is the unproce ssed MIDI signal pres ent at the MIDI input jack chained through Clock Output DIN OUT This is the clock out ut for DIN Sync re eptive devices t provides the clock nformation sync24 s well as the start op gate settings er 7S ey hy SS Ss Clock Output MIDI OUT This is the connection for the outgoing MIDI ignal It contains the clock information as well as start and stop signals for MIDI recep tive devices n Imprint KOMA Elektronik GmbH is a subsidiary company of KOMA Elektronik B V MIDI THRU AUX DIN OUT MIDI OUT Clock Data Input DIN MIDIIN Socket for MIDI or DIN Sync clock input The RH301 can distinguish if and consequently which signalis
3. There is one CV input rimmer each for LFO Symmetry and LFO Rate Turn the trimmer fully CW to get 100 signal going through and turn he trimmer fully CCW o get no incoming CV signal 9V DC CONNECTOR m Standard BOSS Style adapter 2 1 x 5 5mm barrel plug 9V center polarity negative S00mA minimum Only use the KOMA Elektronik power supply shipped with this pedal KOMA Elektronik GmbH Mahlower Strasse 24 12049 Berlin Neukolln Germany Tips amp Tricks Switching PSU To make sure the RH301 runs without any problems we recommend using a 9 Volt power supply center negative with a minimum of 500mA Make sure the power supply is rated for the line voltage of your country 120 VAC for the USA 220 VAC for Europe and most other countries have my DAW as a master clock controlling the RH301 but the tempo is fluctuating What can do Many sequencer programs and other music software will send all available MIDI information on all available MIDI channels at the same time sometimes leading to nstable MIDI clock information because of sound card or hardware limitations Try choosing the right MIDI channel to clock the RH301 improving accuracy of the MIDI signal My LFO will randomly reset while syncing to external clock signals Please check your MIDI DIN Sync analog clock connections Many problems come from cheap or broken cables Also make sure you don t accidentally modulate your LFO rate via
4. envelope settings to further manipulate your sounds and rhythms Front Panel Connections amp Controls Analog Clock Output CLOCK T This is the main clock output It sends a 50 duty cycle square wave signal The CLOCK output is twofold and both outputs are buffered CV Output ENV 5 The ENV CV output holds the signal of the envelope generator Signal ranges from OV 7 6V DIVISION A N Used to send a divi sion or multiples of the master CLOCK out put This ranges from 16th notes to once every full bar in ref erence of the master clock beats source Three way switch the TAP position allows you to use the large black push button to ap in a certain tempo The FREE position can be used to freely set he main tempo of the pedal with the TEMPO button The EXT po sition serves as your choice i e if you want he pedal to sync to either MIDI DIN Sync or EXT CLOCK input Tempo c B Only active in FREE mode and can be used to freely adjust the main tempo an ywhere from 40bpm to 240bpm beats per minute attack o Control to set the at tack time of the enve lope pecaYy E Control to set the de cay time of the enve lope susTAN F E Control to set the level of the envelope while the gate is high PUSH 3 Push button to tap in tempo or start stop clock Also re syncs when in MIDI slave mode RELEASE H Control to set the release time of the envelope eenn
5. present at this connection so that you don t have to worry about different settings Managing Director Christian Zollner amp Wouter Jaspers Registered Office Berlin Germany RATE SUSTAIN s nme meee IN MIDI IN MIDI OUT Ei KOMA ELEKTRONIK RHYTHM WORKSTATION UTILITY TOOL 3 EXT CLOCK Analog Clock Input This CV input accepts rising edge driven analog clock signals Every time a signal rises from OV 3V the pedal counts one beat 7 LFO SPEED CV Input Controls the speed of the LFO When you insert a control voltage into this input the RATE knob determines the offset voltage Usable range from 0 SV DIN OUT AN SFNSAR SYMMETRY 6 SHAPE RELEASE mune n K SENSOR 00002uunust Emits a CV signal that can be patched up with any CV receptive socket on KOMA prod ucts and for example a modular synthesiz er By moving your hand over the sensor you can control the parameters of the CV input patched to it DIN MIDIIN AUX CONTROL LFO SYMM LFO SPEED g CVIN CV IN QV DC INPUT AUX CONTROL Trigger In Manual start stop for the clock when there is a rising trigger functions the same as the push button Court of Registration Amtgericht Berlin Charlottenburg Registernummer HRB 145453 VAT ID DE285522050 MID THRU E 7 lt z m za lt 4 LFo SYMM CV Input Controls the symmetry of the LFO W
6. same cable and plug but not the same pins patch my sensor to the CV inputs and it doesn t seem to change anything Make sure you use the correct PSU 9V 500mA center polarity negative for the sensor to work correctly Also check if your CV attenuators are on the right settings on the rear panel Keep in mind that the incoming CV signal is added to the corresponding knob on the front panel LFO RATE and LFO SYMMETRY so you won t hear your changes if they are set too high set my RH301 to FREE mode EXT mode and sync to an external clock signal but my DAW synthesizer drum machine doesn t start playing The RH301 converts incoming start stop signals from MIDI to DIN Sync If you miss those start stop signals because they were sent before you plugged in the cable or none are sent at all you have to create them yourself by pressing the large black pushbutton CV Theory The concept of control voltage CV is not hard to understand Instead of turning a knob on your pedal you simply connect a voltage the control voltage to the cor responding CV input that does the job for you So for example if you want to have a quickly varying LFO SYMMETRY you don t have to turn that knob all the time back and forth until your fingers fall off but simply connect an alternating CV to the LFO SYMMETRY input You can use control signals from any source to manipulate certain features of the RHSOL All of the CV inputs of the RH3
7. 01 accept bipolar as well as unipolar control voltages but work best with CV from 0 SV The incoming CV signals are mixed to gether with the corresponding knob on the RH301 itself and we provide you with a attenuator for each CV input on the backside of the panel If you notice a significant distortion or clipping in your control signal waveform or range CV behavior simply turn the attenuator counter clockwise towards the word CV until you hear your desired result By turning it counter clockwise you attenuate the incoming CV signal Fully counter clockwise means that the incoming CV signal is completely gone whereas fully clockwise means that the incoming CV signal is arriving to the circuit unattenuated Furthermore you can set an offset voltage to your control voltage to adjust the CV signal to your needs The offset voltage is set by the corresponding knob on the front panel LFO RATE and LFO SYMMETRY There s also a distinction between bipolar and unipolar signals This is best explained with a few pictures n BIPOLAR CV SIGNALS V 0V Bias Voltage EY set by knob CADER Ve CV Signal inside the pedal Original CV Signal So what happens The incoming CV signal is shifted around the voltage that you select with the corresponding knob Example if you insert a 5V to 5V sine wave into the LFO SYMMETRY CV jack you will get the following result
8. ANALOG CLOCK IN HNO a a a 24 PPQN ANALOG CLOCK OUT MIDI DIN SYC 24 PPQN 1 BEAT 24 PPQN SYNC OFF BEAT The push button can also be used to sync off beat If you push it while the RH301 is running already the pedal will reset its internal clock to 0 in sync with the incoming clock This way you can manually sync the RH01 into shifted clock signals UPDATING FIRMWARE The RH301 provides the possibility of updating its firmware by sending dumping IDI SysEx data through a MIDI cable connected to the DIN MIDI input on the back of he pedal To get into firmware update mode unplug the power cable as well as any other connections on the patchbay or back panel jacks Press and hold the large black pushbutton while re connecting the power cable Keep holding the button or 2 seconds If executed correctly the blue light around the pushbutton should now steadily glow blue Connect a MIDI cable between the DIN MIDI input on the back panel of the RH301 and your MIDI host The RH301 is now ready to receive firmware updates For more detailed information on this topic and the latest firmware please check out the RH301 product page on www koma elektronik com Here is a table for the CV if you want to change your LFO division precisely ov MINE IN EN 221V ETO N SN 4i4IV GS IY TEN AAN ZNW SEN 3 85V 4 4V 5 0V cV Technical Specs CASING Powder coated aluminum casing silk screened text and wooden side panels SHIPP
9. ING WEIGHT 1 5 kg 3 3 lbs including power adapter and this instruction manual DIMENSIONS 23 cmx 20 cmx5cm LxWxH 9 x 9 8 x 2 LxWxH POWER REQUIREMENTS 9V DC power adapter S00mA min center polarity negative only use the KOMA adapter shipped with the pedal NET WEIGHT 1000 g 22 lbs Warranty KOMA Elektronik warrants its products to be free of defects in materials workmanship and conforming to specifications at the time of shipment for a period of two years from the date of purchase During the warranty period any defective products will be repaired or replaced at KOMA Elektronik s option on a return to factory basis This warranty covers defects that KOMA Elektronik determines are no fault of the user RETURNING YOUR PRODUCT You must obtain prior approval in the form of a RMA Return Material Authorization number from KOMA Elektronik before returning any product Email us at support koma elektronik com to request the RMA number All products must be packed carefully and shipped with the KOMA Elektronik supplied power adapter Sorry the warranty will not be honored if the product is not properly packed Once you have received the RMA write it on the box together with the word WARENRUCKSENDUNG and carefully pack your product ship the product to KOMA Elektronik with transportation and insurance charges paid and include your return shipping address WHAT WILL WE D0 Once received we will e
10. RH 301 RHYTHM WORKSTATION UTILITY TOOL USER MANUAL Dear KOMA user Thanks a lot for purchasing the KOMA Elektronik RH301 Rhythm Workstation Utility Tool The RH 301 is our solution to a problem many musicians are struggling with analog and digital equipment that needs to run side by side in sync but at the same time still needs to be controllable which is not always an easy task There are many standards out there MIDI DIN Sync analog clocks and control voltages in the form of LFOs and envelopes They al basically represent different approaches to synchronize dif ferent instruments and effect units some of them are nearly as old as synthesizers themselves some are more recent Some are intended to let devices run at the same speed some at creating repeated or single events within a certain time frame that s in sync with other gear Synchronization problems are always a time consuming and annoying reality for many musicians This is why we decided to build a Rhythm Workstation Utility Tool that helps electronic musicians get the most out of their equipment by properly syncing a large amount of devices in many different ways without losing a hands on feeling and creativity The heart of the RH301 is the master clock of which the tempo can be set by turning the Tempo knob by tapping a tempo on the tap button by syncing it to MIDI DIN Sync or an external analog clock signal The generated clock signal can be
11. a CV signal into LFO SPEED Keep in mind that if you do so the LFO needs one bar to adjust to the new tempo connected my DAW to the RH301 via MIDI but the pedal doesn t seem to start First make sure that you set the master clock sync source to EXT and your DAW is sending the correct MIDI signals The RH301 expects a MIDI clock signal not a MIDI time code Your DAW should send a start signal whenever you hit play but sometimes only sends a start signal in the beginning of a song i e in Ableton Live try to set MIDI Clock Type to Pattern in the MIDI Sync preferences tab Your RH301 also won t start to sync to MIDI if there is a cable plugged into the EXT CLOCK jack even if no clock signal is present there Also check your MIDI cables Some of my equipment is starting to hum when attach a MIDI cable This can happen in some setups mostly involving USB MIDI interfaces or other equipment with a USB MIDI connection sound cards hardware MIDI controllers etc Try to prevent ground loops and check your MIDI connections and cables My drum machine to the DIN OUT of the RH301 it starts and stops randomly Please check your DIN cables Like with MIDI most problems stem from defective or wrong DIN cables Make sure that all the pins on the cable are connected from one end to the other With some MIDI cables sometimes only the pins used for MIDI are actually connected through the cable MIDI and DIN use the
12. e clock formats that the RH301 is compatible with MIDI is a digital communication standard from the 80s coming in the flavor of a serial protocol With MIDI clock the clock signal itself consists of 24 pulses called ticks per quarter note to sync the tempi together For a synchronized start and stop of se quencers LFOs or other functions start and stop bytes are sent over the same cable When you run the RH301 in SLAVE mode all incoming MIDI messages are merged with the clock to the output DIN Sync is an even older synchronization possibility from the pre MIDI age It usually uses 24 pulses sync24 seldom sync48 sync96 or even sync192 you can set your preferred DIN sync format via a jumper on the main PCB it s set to Syns24 by default per quarter to sync tempi together For the synchronized starting and stopping of devices a gate signalis used If the gate is high it means start run while if it is low it means stop With analog clocks the matter is also pretty straight forward the clock signal con sists of a pulse or Square wave that syncs the tempi Starting and stopping can be solved through various approaches most of them include a start stop gate All of the mentioned standards have been brought together in the RH301 to provide a us able working environment no matter what setup you use The difference between MIDI DIN Sync and Analog Clock Signals
13. hen you insert a control voltage into this input the SYMMETRY knob determines the offset voltage Usable range from 0 SV LFO RESET CV Input The LFO RESET input can be used the externally reset the LFO to bar 1 at any time The input reacts to any rising edge trigger that changes from OV to 3V OR LE On Output This is the CV output of the infrared motion sensor The closer you move something to wards the sensor LFO INV OR Output Inverted LFO output of the pedal It is in phase with the main LFO out put but the voltages are inverted Signal ranges from 7 6V OV LFO CV Output Main LFO output of the pedal Signal ranges from 0 7 6V HIM LFO ENV GATE CV Input Input for external ris ing edge gate signals to trigger the enve lope T o rate Sets the speed of the LFO If you chose to have the LFO synced to he master clock you can select a division or multiples of the mas er tempo to sync to f the LFO is running in ree mode you can set any speed between 0 25Hz and 260Hz oe N SHAPE Determines the output wave of the LFO You can choose be tween sine wave tri angle square sample and hold and a spe cial waveform which is composed of a sine wave and digital noise a Choose to have the LFO run freely or synced to the clock Used to wave shape the LFO output You can bend the symmetry of the wave from 10 to 90 CV ATTENUATORS Trim pot
14. passed on via two clock outputs two division outputs or via the MIDI Output and DIN Sync Output An incoming MIDI signal can also be passed along via the MIDI Thru and MIDI Out sockets And that s not all besides having a master clock section he RH301 is also fitted with a LFO which can be synced to he master clock or run freely from 0 25 Hz to 260 Hz in five different waveforms sine triangle square SSH and noisine This means the pedal can also be used as a lo fi oscillator when you turn the LFO up into the audible range The LFO has wo separate outputs on the patch bay LFO out and LFO in verted out Some of the features of the LFO can also be mod ulated via control voltage the pedal boasts CV inputs for LFO SPEED LFO RESET and LFO SYMMETRY The third main feature of the RH301 is an Envelope Generator which can easily be synced to the master clock a division of the master clock or run in loop mode Besides the normal controls for ATTACK DECAY SUSTAIN and RELEASE the pedal comes with a RANGE knob to change the time range of the envelope created The envelope generator comes with a normal envelope output and an inverted envelope output and can also be triggered by an external gate trigger via he external gate input To improve playability and to stimulate your creative process he RH301 also has a built in infra red motion controller which can be used to control the CV input
15. pe will now start its cycle every time the LFO just went low so ping pong way bu hey are playing in a nice stillin sync with the rest of the clock signa CLOCK OUT SO Cnn Ss e Beas lenny TN Gpasneeetenneay LFO LFOINV LFOSYMM SENSOR LFO Aah SYMMETRY oy Qa G Q RATE SHAPE ENV ne DAW AS MASTER Set the master sync source to EXT and plug the MIDI cable with the clock signal into the DIN MIDI IN jack A start stop byte from the external clock is sponding byte re translated into a corre ceived by the pedal and sent to the DIN and MIDI OUT jacks If there s no start stop byte the black push button can be used to s tart stop the pedal and send out the information from the DIN and MIDI OUT jacks Features The RH301 enables you to accomplish a couple of different tasks including convert ing clock signals from different formats into other formats The RH301 can work with and be synced to analog clocks MIDI and the DIN Sync format For most applications it is necessary to achieve two things First sync the tempi of two or more pieces of gear so that they are running at the same speed The second thing you need to achieve is to have the two synced tempi run in phase for example let them start running at the same time These two steps are solved differently in the thre
16. s of the RH301 other KOMA products or any device that accepts CV inputs in general since it has it s own dedicated SENSOR Output on he patch bay o matter what your setup is digital or analog if you use a modular synthesizer DAW drum computer synthesizer or our own BD101 and FT201 effect pedals the RHS01 is an effective tool to make sure they all walk in line while you have your hands free to create beautiful tunes Have fun All the best from Berlin The KOMA Elektronik Team outed Wouter Jaspers Hayden Moskowitz Christian Zollner Robert Kunz Getting Started 1 UNPACK YOUR MACHINE The package comes with the RH301 pedal a 9VDC SO0mA center negative power supply and this manual Make sure that the power supply is rated for the line voltage of your country 120 VAC for the USA 220 VAC for Europe or most other countries 2 CONNECT IT Be sure your amp or mixer is turned off then connect the clock envelope and LFO outputs to your instruments you want to control Or connect external MIDI DIN Sync or a clock source to the RH3O01 to sync it 3 SET UP A BASIC PATCH Set all controls and connections to a patch in basic settings 4 POWER UP BYPASS Connect the RH301 power supply to the RH301 DC input on the backside of the pedal When you press the PUSH switch you start the clock 5 PLAY Now play that machine Adjust divisions and multiplications of the clock as well as LFO and
17. s while turning the SYMMETRY knob BIPOLAR CV SIGNALS O 9V Bias Voltage Bias Voltage set by knob set by knob OND 0V OND 0V Original CV Signal Low Bias Voltage CV Signal inside the pedal High Bias Voltage A similar thing happens to unipolar CV signals Their point of origin OV is shifted by the amount set with the corresponding knob In other words You add the voltage of your knob to the voltage of your incoming unipolar CV signal UNIPOLAR CV SIGNALS V 9V Bias Voltage set by knob GND OV OND 0V Original CV Signal CV Signal inside the pedal Basic Settings MIDI OUT er CLOCK OUT DIN OUT A Lng k o FOINV LFOSYMM SENSOR i ea eA AY AB 8 DIISION ATTACK DECAY SUSTAIN RELEASE RANGE IO RH301 AS MASTER For the RH301 to be the master clock source there are two possibilities set the master clock to FREE and adjust the tem po with the TEMPO knob Pressing the black push button creates the start stop func tions Or set the master clock to TAP then use the black push button to tap a tempo After the third tap a start byte and gate is created automatically CV OUT CEEE ES Q oo RHYTHMICALLY CHANGING LFO PATTERN Take a standard 1 4 patch cable and con nect it from the envelope output
18. to the LFO speed input Set both LFO and enve lope generator to sync and create a slow ly changing envelope The envelope will change the LFO division in a rhythmical manner Pattern mayhem GATE OUT quae i JER S TRIG Some synthesizers especially older Korg Moog and Yamaha ones expect S Triggers on certain trigger inputs Set the LFO to square wave and connect the inverted LFO output to the S Trigger input Set the LFO to sync mode turn the LFO symmetry fully CCW to be on beat and turn it clockwise to add a groovy feeling to it DIN IN CLOCK OUT Ret tale MIDIOUT g oe OTe DIN AS MASTER Set the master sync source to EXT and plug he DIN cable into the DIN MIDI IN jack An incoming start stop gate is translated into a corresponding start stop byte a IDI OUT If no start stop gate is received by the pedal create your own by pressing he black push button This starts the peda and sends a MIDI start stop byte to MID OUT as well as a start stop gate to DIN OUT CLOCK IN MIDI OUT DIV OUT ome Be ETTI on L DIN OUT on ELETI FOINV LFOSYMM SENSOR G LFO AN SYMMETRY oe G
19. xamine the product for any obvious signs of user abuse or damage as a result of transport If the product has been abused damaged in transit or is out of warranty we will contact you with an estimate of the repair cost Warranty work will be performed and KOMA Elektronik will ship and insure your product to your address free of charge HOW TO INITIATE YOUR WARRANTY Please initiate your warranty online by sending an email to support koma elektronik com Graphics by www rabadaun com
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