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5

Carefully select a place for setting up the GoldMike. The unit
should be situated away from heat sources and direct sunlight.
Avoid installing your GoldMike in environments exposed to vibra-
tions, dust, heat, cold or moisture. Keep the unit away from trans-
formers or motors or any other unit that could generate large
variations in power supply or cause electrical interferences. Do
not install the unit in close proximity to power amplifiers or
digital processors. You may consider placing it in a rack contai-
ning other analog gear. Such placement can prevent interference
from  Word Clock, Smpte, MIDI, etc.

• Do not open the case. You may risk electric shock and may 

damage your equipment.

• Leave repairs and maintenance to a qualified service technician.

Should foreign objects fall inside the case, contact your authorised
dealer or support person.

• To avoid electric shock or fire hazards do not expose your unit to

rain or dampness.

• In case of lightning unplug the unit. Please unplug the cable by 

pulling on the plug only; never pull on the cable.

• Never force a switch or knob.

• To clean the case use a lint-free cloth. Avoid cleaning agents as 

they may damage the chassis. Manufactured in standard 19" EIA 
format, it utilises two rack units.

• Please support the back of the unit whenever it is being mounted

into a 19" rack (especially important when touring).

Again, while GoldMike's housing is EMV-proof and protects
against HF-interference, placement of the unit is very important
since it is capable of amplifying microphone signals as well as
other unwanted signals up to 2200 times. Before connecting the
GoldMike, or any other equipment, turn off all power. Adjust the
voltage setting on the back so that it corresponds with the power
conditions.The GoldMike's XLR inputs, which are used for connec-
ting microphone and line level signals, are electronically
balanced, while the outputs allow for simultaneous feed to the
balanced XLR connectors as well as to the unbalanced 1/4"
outputs. The unit can even be used as a microphone splitter.

Important safety instructions--

please read carefully!

Hookup

Installation &

Connections

Содержание GoldMike 9844

Страница 1: ...Model 9844 Manual Vacuum Tube Microphone Preamplifier ...

Страница 2: ...ion of SPL Limitations of Liability In no event will SPL be liable for any damages including loss of data lost profits cost of cover or other special incidental consequen tial or indirect damages arising from the use of the unit however caused and on any theory of liability This limitation will apply even if SPL or an authorised dealer has been advised of the possibility of such damage SPL electro...

Страница 3: ...often tested and compared in many publica tions and by our customers themselfs and constantly valued with best results I would like to pass on this broad appreciation to those who deserve it my excellent colleagues Hermann Gier Dear customer Thank you for the confidence you have shown towards SPL electronics GmbH by purchasing the SPL GoldMike You have decided to use an innovative microphone pream...

Страница 4: ...e experience of more than 12 years of research in semi conductor amplification design The GoldMike allows for up to 72 dB of gain a value tube only designed preamps can t match The SPL tube IC construction on the other hand superbly combines today s standards with such trademark tube characteristics improved spatial depth rich detailed imaging warm and smooth sonics Moreover the GoldMike delivers ...

Страница 5: ...ug the unit Please unplug the cable by pulling on the plug only never pull on the cable Never force a switch or knob To clean the case use a lint free cloth Avoid cleaning agents as they may damage the chassis Manufactured in standard 19 EIA format it utilises two rack units Please support the back of the unit whenever it is being mounted into a 19 rack especially important when touring Again whil...

Страница 6: ...can be physically disconnected by the Ground Lift switch GND LIFT This helps to eliminate hums The power supply s output side is filtered by an RC circuit to extract noise and hums caused by your power service 6000µf capacitors smooth out the positive and negative half waves The phantom power is derived from a separate winding in the transformer Filtered and rectified by a series of zener diodes a...

Страница 7: ...ge and then maximises the warmth and liveliness of a meticulously selected and tested ECC 83 tube at the second stage This makes the GoldMike an ideal partner for high end HD recording The unit s dynamic range of 111 dBu even outperforms some 24 bit recording gear Advantages of the dual mono design GoldMike s two mono amplifier blocks are designed with a central power supply that utilises a star g...

Страница 8: ...ed shelving bandpass neverthe less a shifted timebase phase is responsible for boosting the harmonic content The close correlation however between frequency and amplitude timebase to the dynamics of the input signal remains intact When working on a hard disc recording system you will greatly appreciate the appeal of the Flair circuitry and the topnotch sounding signal it delivers It can spare you ...

Страница 9: ... 3 When turning on the supply voltage a phantom circuit is generated by splitting the 48 volt supply signal equally between the and conductors of the audio cabling the voltage is returned through the cable s shield No potential difference is present between the two conductors dynamic microphones may be used while phantom power is switched on without damage Phantom power in effect reduces the inter...

Страница 10: ...phone wiring scheme GoldMike s XLR connectors are configured as follows pin 2 high pin 3 low 3 Experimenting with the phase reverse option may reward you with better results The PAD switch attenuates the input signal by 30 dB allowing even high level signals to be processed by the GoldMike This may apply to loud drum or brass recordings The HIGHPASS filter will pass only frequencies above a certai...

Страница 11: ... during the tube amplification stage The resulting recorded signal resounds with more detail intelli gibility presence and cut through The FLAIR circuitry is especi ally valuable when working in an HD recording environment because of the great sounding signal it delivers at the outset thereby sparing you hours of fixing a compromised recording Each of the GoldMike s channels is equipped with a bac...

Страница 12: ...ormerless Input Impedance 1 8 kOhm Max Input Level 25 72 dBu Outputs XLR Output Microphone Instrument Preamplifier electronically balanced differential transformerless Nominal Output Level XLR 6 dB Max Output Level XLR 25 4 dB Nominal Output Level 1 4 0 dB Max Output Level 1 4 19 4 dB Output Impedance XLR Klinke 600 Ohm Dimensions Standard EIA 19 1HE chassis 19 x 3 47 x 6 18 482 x 88 x 157mm Weigh...

Страница 13: ...uthorized SPL warranty repair facility in the country where purchased or to the SPL factory in Germany in the original packaging or a replacement supplied by SPL with all transportation costs and full insurance paid each way by the purchaser or owner All remedies and the measure of damages are limited to the above services It is possible that economic loss or injury to person or property may resul...

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