RK1 NoiseDrum user`s manual
Contents
1. IMETASONIX RK1 NoiseDrum user s manual Copyright 2015 Metasonix All rights reserved Please read all of this before using it RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future reference HEED WARNINGS All warnings on the RK1 and in the operating instructions should be adhered to FOLLOW INSTRUCTIONS All operating instructions should be followed WATER AND MOISTURE The RK1 should not be used near water e g near a bathtub washbow l kitchen sink laundry tub in a wet basement near a swimming pool etc Care should be taken so that liquids are not spilled onto or near the enclosure VENTILATION AND COOLING The RK1 normally operates warm to the touch The tube and a zener diode inside the module generate considerable heat It MUST be situated so that its location or position does not interfere with convective cooling The RK1 MUST NOT be used on a bed sofa rug or similar surface which may prevent proper cooling It is NOT a toy If the RK1 is mounted in a synthesizer rack or other built in installation space must be left around it to allow convection cooling Use great caution if handling the RK1 when it is powered up HEAT The RK1 MUST be situated away from heat sources such as radiators heat registers stoves or other devices including power amps that produce heat POWER SOURCE The RK1 should be connected to a power supply ONLY of the type described in the operating manual or as ma2. noise signal being gated by the audio signal Because the signal is very strong and tube squash distortion occurs the RK1 will NOT sound like a conventional solid state noise source MAINTENANCE The RK1 requires a power supply producing 12v DC at 800 mA cold and 300 mA after warmup plus 12v at 10 mA When first powered on the RK1 briefly draws greater current so be aware of this when using a power supply to run it plus other modules You MUST assure the power supply is able to handle the RK1 load plus the load of other modules We do not recommend the use of Tiptop microZeus or Happy Ending power supplies due to their limited peak current capacity We DO recommend use of the Metasonix RKP power system which has ample power capacity to run Metasonix modules The tube in the RK1 is being run VERY conservatively It should last for tens of thousands of hours of normal use Still the RK1 produces a lot of waste heat so we recommend shutting it off when not in use UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING DO NOT REPLACE OR SUBSTITUTE THE TUBE YOURSELF Please note not all tubes have easily visible heaters They were not designed to offer pretty cosmetics If you can t see a heater glowing DO NOT assume that tube is bad If you hear an output signal the RK1 tube is working We get many foolish complaints of this type TUBE REPLACEMENT despite their expected long lifetime the tube might be damaged or develop faulty
3. repair please pack it very carefully preferably using the original packaging materials Please also include an explanatory note IMPORTANT To save yourself unnecessary cost and inconvenience please check carefully that you have fully read and followed the instructions in this instruction manual This warranty is in lieu of all other expressed warranties obligations or liabilities ANY IMPLIED WARRANTIES OBLIGATIONS OR LIABILITIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE DURATION OF THIS WRITTEN LIMITED WARRANTY Some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you INNO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY EXPRESS OR IMPLIED WHATSOEVER Some states do not allow the exclusion or limitation of special incidental or consequential damages so the above limitation may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state METASONIX shall not be held liable for any incidental consequential or direct damages or expenses associated with the use or misuse of its products The audio output of this product is capable of damaging some types of solid state audio equipment such use is entirely at the risk of the user METASO
4. NIX does not guarantee that any of its products are designed for any particular use or purpose The entire risk of suitability and performance of this product lies with the user Products manufactured and or sold by METASONIX are not authorized for use as critical components in devices used in life support and other systems whose failure or performance could result in compromised safety or danger to life or property NOTE All sales are FINAL especially custom designs Only a Metasonix authorized dealer is permitted to return products to Metasonix for a refund or exchange What it does The RK1 is intended to serve as a cymbal sound for synthesis of electronic drums It uses a special selected noise diode to generate white noise and a vacuum tube pentode to gate the noise on and off A built in envelope generator allows adjustment of the attack and decay time Long attack times will require triggering with a long positive pulse while typical cymbal sounds can be made with a short trigger pulse A trigger of at least 5 volts is recommended for best performance Trigger and CV inputs have 100k ohm impedance The audio output is able to drive a 600 ohm load The CV input affects the DECAY time and may be anywhere in the 10v to 10v range the effective range is 1 5v to 5v USAGE Connect the RK1 to an adequate Euro cabinet power supply Connect a positive trigger gate pulse to the INPUT and connect the OUTPUT to a monitor amplifier
5. ing terms and conditions apply 1 Warranty period is for ONE YEAR from date of purchase with proof of purchase submitted Warranty covers electrical failure of vacuum tubes and gas filled tubes except in cases explained in 3 below 2 Operating instructions must be followed This device was intended ONLY for use by AUDIO AND MUSIC PROFESSIONALS IT IS NOT INTENDED FOR USE BY ORDINARY CONSUMERS Product must not have been damaged as a result of defacement misuse abuse neglect accident destruction or alteration of the serial number improper electrical voltages or currents repair alteration or maintenance by any person or party other than our own service facility or an authorized service center use or installation of non Metasonix replacement parts in the product or the use of this product outside of the U S A or Canada except as a product distributed by an authorized Metasonix dealer or modification of the product in any way or incorporation of the product into any other products or damage to the product caused by accident fire floods lightning or acts of God or any use violative of instructions furnished by Metasonix 3 Obligations of Metasonix shall be limited to repair or replacement with same or similar unit at our option To obtain repairs under this warranty present the product and proof of purchase e g bill or invoice to the authorized Metasonix service center transportation charges prepaid When returning the product for
6. internal wiring connections requiring replacement This particular RK1 was shipped and wired for a 6CB6 pentode Other pentodes with the same pinout such as the 6AU6 or 6AKS will also work Do NOT attempt to substitute other tube types 6CB6s are still quite easy to find and are available from distributors such as Radio Electric Supply vacuumtubes net or Antique Electronic Supply tubesandmore com If you are confused or have ANY technical questions feel free to contact us Please DO NOT ASSUME and if you are not an experienced technician DO NOT TRY RANDOM TUBES OR MODIFY THE CIRCUIT IN ANY WAY 495 N Main 109 LAKEPORT CA 95453 USA IMETASONIX 707 263 5343 synth metasonix com www metasonix com
7. or mixer Watch the volume level The RK1 is designed to put out a very hot audio signal Trigger sequencers such as the ALM Pamela s Workout Delptronics Trigger Man Tiptop Trigger Riot or the trigger outputs of the Doepfer A 155 sequencer may be used to trigger the RK1 Most of these devices produce short pulses so the ATTACK control s range will be limited If a wider attack range is desired you must use a pulse stretcher such as the Doepfer A 162 trigger delay before the RK1 This function is built into the Tiptop Trigger Riot See the user manual for whichever sequencer is desired Turn ATTACK DECAY and TONE fully counterclockwise Allow the RK1 tube to warm up then start triggering it Adjusting DECAY will allow a full range of ordinary cymbal effects short decay for ride medium for hi hat long for crash while ATTACK can offer a slow attack cymbal which is normally impossible in real world drumkits The TONE control is a simple low pass filter fully CCW is white noise and fully clockwise is red noise Various shades of Pink are available mostly at the clockwise side of the control s rotation no it s not linear By gating the RK1 on at all times with a DC voltage it can be used as a conventional white pink noise source for other modules It is also possible to process audio through the RK1 feed a VERY hot audio signal to the Trigger input turn ATTACK and DECAY fully CCW and you should be able to hear the
8. rked on the RK1 WARNING Each RK1 requires 12v at 300 mA and 12v at 10 mA with a brief transient consumption of 800 mA at first power on The cabinet power supply must be able to deliver this current Many switch mode power supplies will have difficulty powering Metasonix tube modules WARNING The tube gets hot in normal operation and should not be touched after 10 minutes with power applied CLEANING The RK1 should only be cleaned with a soft cloth moistened with water Disconnect all possible power supplies before attempting to clean or handle NON USE PERIODS The RK1 should be shut off when left unused for a long period of time MECHANICAL protect the RK1 vacuum tube from damage Use of a Eurorack cabinet with a removable lid tall enough to protect the tube is recommended if the synthesizer is to be moved or transported DAMAGE OR TUBE REPLACEMENT REQUIRING SERVICE The RK1 should be serviced by qualified service personnel when The power supply has been damaged The RK1 has been dropped physically damaged or subjected to force Liquid has been spilled onto the RK1 or it has been exposed to rain The RK1 does not appear to operate normally or exhibits a marked change in performance SERVICING The user should not attempt to service the RK1 All servicing should be referred to qualified service personnel METASONIX LIMITED WARRANTY and standard legal disclaimer Thank you for purchasing this Metasonix product The follow
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