USER MANUAL
Contents
1. cables UNPACKING You will find in the Goldmund Mimesis 27 3 box The preamplifier The power cord The remote control transmitter This manual ATTENTION Please keep the packaging in case you need to transport the MIMESIS 27 3 ata later date or if you have to send it for maintenance This packaging has been designed specifically to protect the MIMESIS 27 3 in transit Use of alternative packaging is likely to result in damage invalidating warranty cover User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 5 1 SETTING UP THE MIMESIS 27 3 1 2 CHOICE OF THE PREAMPLIFIER LOCATION The Goldmund Mimesis 27 3 preamplifier generates a significant amount of heat It is necessary to allow a proper cooling of the heat sinks Avoid any location which is not properly ventilated and avoid putting any equipment that is sensitive to temperature on top 1 3 LINE VOLTAGE ADJ USTMENT A voltage selector is provided on the back plate of the preamplifier Adjust it with a screwdriver if the line voltage provided is not appropriate ATTENTION On the 220V position the Goldmund Mimesis 27 3 preamplifier will function properly for main line voltage in between 200V and 240V On the 110V position the main line must deliver between 105 and 125V If your main line is usually out of these tolerances please consult your Goldmund dealer Please check the value of the main line fuse This fuse is located on the power cord recep2. USER MANUAL User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 1 Thank you for purchasing the Goldmund MIMESIS 27 3 Analogue Preamplifier Please take some time to read this manual It may provide you with useful information to make your pleasure of listening to the MIMESIS 27 3 even higher INTRODUCTION GOLDMUND MIMESIS 27 3 ANALOGUE PREAMPLIFIER Goldmund was founded in 1978 and has ever since been dedicated to the accurate reproduction of sound and image At Goldmund we strive to lead in the creation development and manufacture of the industry s most advanced technologies including audio and video systems home networking and music distribution The guiding principle at Goldmund is to produce a precise sound with the least possible loss of quality through the different stages Goldmund will never adopt a technology before it is sufficiently developed to satisfy the high quality standards we set This is why Goldmund has often rejected mainstream technologies and developed its own User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 2 W A R N I N GQ No connection or manipulation may be done before reading these instructions Damage to the Analogue Preamplifier may result if the following instructions are not understood and applied This high quality analogue preamplifier possesses new technical features like ultra high bandwidth and computer linking which are becoming neces
3. ay remain audible in some circumstances when an input is left open and is selected This disturbance has no effect on the preamplifier but may be avoided easily by short circuiting plugs applied to all the unused inputs Connect the tape machines to input 5 and to the Tape output RCA plugs 3 FRONT AND BACK PANELS FUNCTIONS Power On the back panel of the Goldmund Mimesis 27 3 preamplifier the switch is used to power on the preamplifier In regular use this switch is left ON and the circuits of the preamplifier are left ON The standby function of the remote control is only shorting the output to ground for safe removal of the cables to the power amplifier User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 7 The preamp can be powered off by switching the switch to the OFF position A special safety circuit switches the preamp to muting to avoid any disturbance to reach the power amplifier and the speakers even if the preamplifier is disconnected from the AC plug by accident However to optimize the sound quality of the preamplifier and insure the best reliability Goldmund recommends that the unit is left powered ON Muting Muting is controlled from the remote control It can be used to temporarily turn the volume down without touching the volume control When returned to normal the level of the preamplifier is returned to where it was when the muting was activated Volume May be adjusted manually by turni
4. er 10 6 TECHNICAL DATA e REAR PANEL CONNECTORS AND CONTROLS Power cord socket 3 lugs Mains fuse 500mA slow blow Voltage selector 110 220 V Earthing post yellow green Input connectors RCA right and left for Tape and line inputs Doubled Output connector RCA right and left Output connectors RCA right and left for Tape output e SIZE AND WEIGHT 44 cm 17 3 W x 38 cm 15 D x 10 cm 4 H Weight 8 Kg e WARRANTY 3 years parts and labor User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 11
5. ng the volume control or on the remote by VOLUME or Selector Selects one of the 8 if D A option is enabled 5 if not available input for listening including the one tape inputs for monitoring A step clockwise is selecting the next input a step counterclockwise selects the previous input A display on the front panel shows the number of the input selected Selection may be also made on the remote by pressing the key corresponding to the input on the Analog section of the remote Record Record is factory set Tape in is always input 5 If input 5 is selected tape out is disconnected Otherwise tape out is connected to the selected input E g input 3 is selected so tape out receive signal from input 3 SOUND QUALITY OPTIMIZATION Warm up sonic effect If the preamplifier has been left unpowered for a few days the optimum sound quality is only reached after many hours This is why Goldmund recommends leaving the MIMESIS 27 3 powered on User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 8 CLEANING The Goldmund Mimesis 27 3 preamplifier usually requires no maintenance To clean your Mimesis use a soft and slightly wet cloth Always turn the power off before cleaning your preamplifier TECHNICAL DATA e OUTPUT LEVEL Nominal level 2 25 V RMS Maximum output level 3 6 V RMS Output stage output impedance lt 10 Ohms Corrected output impedance 75 Ohms e FREQUENCY RESPONSE The
6. sary for an accurate transcription of today s best analogue messages in complete systems with video computer and audio associated components Only a careful use can provide all the satisfaction you are expecting All handling must be performed according to the following instructions to avoid the preamplifier deterioration Nevertheless if the instructions are perfectly carried out you will notice that the use of the Goldmund Mimesis 27 3 is quite simple and convenient User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 3 CONTENTS SETTING UP THE MIMESIS 27 3 FIRST INSTALLATION AND CONNECTIONS FRONT AND BACK PANELS FUNCTIONS SOUND QUALITY OPTIMIZATION CLEANING TECHNICAL DATA Oe OOMNAM User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 4 iid SETTING UP THE MIMESIS 27 3 Please read very carefully the following instructions This high precision preamplifier will provide the best analog signal possible thanks to its unique circuitry For exacting technicians musicians and all amateurs who demand the very best in recording transcription we strongly recommend the use of a top quality D A converter or to get the D A build in option to decode the today s high definition digital signals The connections between the analogue sources and the preamplifier are also critical Ultra low reflection cables are absolutely mandatory Goldmund recommends using the special Goldmund Interconnect
7. se values for any level to 3 6 V RMS 0 1 dB 0 50 kHz 1 dB 0 150 kHz 3 dB 0 300 kHz e INPUT SENSITIVITY Nominal level 2 25 V RMS Saturation level 3 6V RMS Nominal input impedance 50 kOhms e GROUP DELAY Propagation delay lt 1 ms stable with frequency from DC to 100 kHz e DISTORTION Figures valid for all levels from 0 to 25 V Dynamic TID lt 0 003 80 dB Static THD lt 0 003 80 dB User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 9 TECHNICAL DATA e SPEED Slew rate of the amplification stages gt 20 V us Rise time lt 700 ns e CROSSTALK Separation gt 90 dB between channels NOISE Signal to noise ratio on line input gt 90 dB Weighted ASA A gt 100 GB e OPERATING TEMPERATURE Room temperature 30 to 40 degrees Celsius 22 to 104 degrees Fahrenheit Internal temperature 45 to 65 degrees Celsius 113 to 149 degrees Fahrenheit e POWER SUPPLY Nominal line voltage 117 or 234 V Input voltage range 10 Maximum power consumption 70 W e GROUNDING Separated ground and earth signal Chassis connected to earth e SAFETY FEATURES Automatic switching to MUTING if the AC line drops or is interrupted Automatic protection against tape loops e FRONT PANEL CONTROLS VOLUME control SELECTOR input switch User manual Goldmund MIMESIS 27 3 Analogue Preamplifi
8. tacle The lid can be removed with a small screwdriver when the cord is removed Use a 500mA slow blow fuse for 220V and 110V 2 FIRST INSTALLATION AND CONNECTI ONS 2 1 POWER CONNECTION Connect the power cord to the back of the preamplifier and plug it into the nearest wall plug Use only a 3 lugs grounded plug for safety and noise reasons To get the best sound of the preamplifier avoid any multiple plugs or an extension cord User manual Goldmund MIMESIS 27 3 Analogue Preamplifier 6 If the preamplifier is the logical center of your system and you use a star grounding configuration you may have to use the earth connection of the AC plug and lift the earth connection of the other equipment In such a case connect together the earth yellow green If you have to update the software you will use the DB9 terminated cable provided with this option to connect the Mimesis 27 3 to a computer serial output and follow the instructions delivered with the software This connector has to be left open in all the other situations 2 2 SOURCES CONNECTION Connect the interconnects between the preamp analog outputs and the power amp You will plug the cables to the RCA female sockets noted outputs Connect the interconnects from the analogue source devices to the line inputs number 1 to 5 With the D A option connect the lineal cables from the digital sources to the inputs number 6 to 8 Note a residual High Frequency noise m
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