user manual
Contents
1. AESCHER HANDMADE IN THE EUROPEAN UNION C 2015 AESCHER EUROPA SRG c STRING RESONANCE GENERATOR 2 User Manual WV Series rev 4 0 1 SET UP 1 1 Overview 1 2 Power Supply 1 3 Functions 2 OPERATION 2 1 Instrument Compatibility 2 2 Handling 2 3 String Mounting amp Tracking 2 4 String Driving 2 5 Proximity Effects 2 6 Maintenance 1 SET UP 1 1 Overview The SRG Series are a line of handheld externally powered string resonators based on nano scale SMDI architecture Available in monophonic and polyphonic models SRG 2 package includes e 2 Handheld 2 Voice Polyphonic Bass Resonator e AMX Power Supply Armband e AIMX 9 9 Volt Battery Port e PS 2 Power Cable e or XG Divided Bass String Sensor Kit The V 2 features high flux density neodymium core magnets and SMDI integration 2 modes of operation NORMAL LPF and 2 MUTE triggers one for the Left Channel and one for the Right Channel The V e also features protruding FANG rails for accurate string tracking and 2 ultra bright deep blue LED power indicators one for each string The VS is designed specifically for bass featuring highly inductive low resonant frequency sensor and driver coils directly wound on neodymium core magnets SET UP gt After unpacking the box install the Divided String Sensor according to the KA User Manual Open and fasten the armband over the wrist of the operating arm adjusti2. Magnets Quiescent Current Drain Operating Current Drain Voltage Gain LPF Attenuation THD Storage Temperature Operating Temperature Width Length Height Mass 15mm 9V 500 mW 2300 Hz 2300 Hz Neodymium 8 mA 110 mA 46 dB 26 dB 0 2 15 25 C 0 35 C 55mm 55mm 10 mm 28g STRING RESONANCE GENERATOR AES CHER E U O P A
3. Port allows connection of 2 standard 9 Volt batteries and fits within the attached loop of the AMX Power Supply Armband NO NO IM wer YES Connecting the Power Cable Back View OR Ld DC Connector PS2 Cable AMX 10 Alkali Mangan Prim rzelle AMX Armband AMX 10 Flatcell AMX ARIVIBAND POWER SUPPLY STRING RESONANCE GENERATOR Left Side View Right Side View QT Right Left Fight Left LPF MUTE Back View Front View ENA DC Connector Power LEDs Bottom View Top View ry Tracking Rails HANDHELD POLYPHONIC BASS RESONATOR SRG AZ 1 3 Functions V2 is hardwired with 1 onboard effect for each of the 2 channels o LPF low pass filter The front trigger activates Left Channel MUTE The back trigger activates Right Channel MUTE Rapid triggering or alternated triggering produces some very interesting special effects available only to the SRG 2 OPERATION 2 1 Instrument Compatibility The SRG functions on any stringed instrument with ferromagnetic strings including plain steel strings and steel core strings The V 2 is equally effective on light and heavy gauge strings and optimised for standard bass string spacing as the pole spacing on the V is 15 mm accounting for a standard 864 mm strin
4. g length and 42 mm nut Optionally the V can be customised on request to accommodate any string spacing The outer tracking rails on the V e span 4 strings 2 support strings and 2 resonated strings The unique Fang rail design allows more stable and accurate string mounting and tracking The SRG is also capable of driving Acoustic Steel String Instruments without electromagnetic transducers although the tonal effects are less audible and transducer proximity effects are unavailable 2 2 Handling The V e is designed to be handheld between the thumb and middle finger with the ring and index fingers free to operate the triggers and mute buttons and with the LEDs facing towards the nut of the instrument The V 2 is securely tethered to the cable of the AMX Armband and therefore will not crash to the stage floor if the grip on the SRG is lost during operation 2 3 String Mounting amp Tracking Place the guide rails on the 2 support strings with the support strings on the outside of the Fangs The SRG should rest absolutely level on the support strings and never tilted to one side It s important to get a feel for the optimal positioning of the SRG through persistent practice Proper use of a cello bow is not learned in a day and neither is the proper use of an SRG both take practice 2 4 String Driving String driving resonance will initiate immediately after holding the SRG steady and level on the suppor
5. ng the tightness until the armband is as tight as possible within comfort limits Any looseness in the armband may cause the power supply to impact with the strings Connect the power supply cable first to the AIVEX 9 Battery Port and then to the DC connector on the SRG Orientate the power supply connector in the DC socket of the V 2 outwards away from the strings as shown in the following illustration The armband should be positioned so that the power cable does not have any slack which could impact with the strings The blue LED power indicators will light up instantly when the power supply cable is firmly connected Flickering LEDs means that the cable is Not firmly connected The V 2 is fully operational the moment the 2 blue LEDs are on 1 2 Power Supply The V Series includes a DC connector for an external power supply All SRGs are externally powered and therefore not design limited by internal 9 volt batteries The unconstrained design also allows for future advances in energy storage technology The AIVIX Power Supply Armband and Power Supply Belt Pack both supply 9V 300 mAh to the SRG 2 via a DC power supply cable Only the AIVIX 9 with 2 fresh batteries installed can supply full current to the V2 although the SRG can operate at a lower power output on a single 9 Volt supply The optional AMX 10R is a rechargeable NiMH Flatcell for use only with the AMX 10R Flatcell charger The AIVIX 9 Battery
6. t strings Any deviation from top dead centre above and parallel to the driven string will result in various effects the most obvious being fade in fade out and reverse envelope effect All positional effects are a result of deviation from parallel top dead centre above the driven string The best path to finding desirable effects is through constant experimentation 2 5 Input Transducer Effects Various Legato and Staccato effects are possible through the proximity and forward backward angular relationship between the driver and the magnetic core of the input transducer pickup on the instrument Most useful effects depend on this distance and angular relationship Provoking the input transducer in every conceivable manner will result in the discovery of more than a few useful effects 2 6 Maintenance If possible always store the SRG in a dry dust free environment at room temperature 15 20 C Always remember to disconnect the Power Supply when not in use There is no OFF switch on the V Series SRG or power supply OFF Disconnected Power Cable Clean the SRG using a soft cotton cloth or t shirt soaked in warm water tight places may be cleaned using a cotton bud Never attempt to clean any part of the SRG with alcohol acetone ammonia or any household cleaner TECHNICAL SPECIFICATIONS SRG MODEL V2 Pole Spacing Supply Voltage Power Output Driver Resonant Frequency Sensor Resonant Frequency Core
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