Sound Performance Lab 2485 Microphone User Manual
Contents
1. SULIM Uld JO SUNM Uld HSAd auoydoniWw wSIDUBIS u17 2 0SU0 Sapsoras 1 1 AU0J 219 03 sall TANANI JW TNIGNIT TAYISNI Tsindino 1311 AN9 swana sva an INDR 0 73 20n 30 INDSE SAV 39DVLIOA SLNdLNO TI3ISNI ZNUND TINdNIDIW gt 6 OA lt sanl e SA Bel FE ee zeg SE Zeie weg GND engt 4 dL ONIWa ISNA ann gel OUOW oa bam ml anani ze ave e nos yal CEA an WAWAN IVINS ge soueuuoyieg punos ANYWY39 NI 30YW en MO S gu STE 2H 0S A0bz 07z wo2 qe e2ue wopedpunosmmm of eee Seen les DS sud lino waroia anam us aava mawvs av 96 e mun 59701970 Tas O 278 Japso2al GH UO DZJUOAYDUAS DU12 Xx2 10f WMP oi DUBIS 410 d S DUBIS 410 d S 9ZEz japow 191124U0 q y jouondo GoldMike MK2 General Advices Rear Panel Connections Again while the GoldMike MK2 s housing is EMV proof and protects against HF interference placement of the unit is very important since it amplifies microphone signals as well as other unwanted signals Before connecting the GoldMike MK2 or any other equipment turn off all power IMPORTANT Adjust the voltage setting on the back so that it corresponds with your local power conditions 220 240V 50 Hz 110 120 V 60 Hz The following graph shows the correct wiring for connecting unbalanced signals to the balanced XLR connectors VOLTAGE Output balanced unbalanced 1 GND 22. Manual Gold Ee HON the Er Mark 2 ii Model Ko GoldMike Mk 2 Model 2485 Dual channel microphone and instrument preamplifier Manual GoldMike MK2 Model 2485 Version 1 2 12 2005 Designer Ruben Tilgner This user s guide contains a description of the product It in no way represents a guarantee of particular characteristics or results of use The information in this document has been carefully compiled and verified and unless otherwise stated or agreed upon correctly describes the product at the time of packaging with this document Sound Performance Lab SPL continuously strives to improve its products and reserves the right to modify the product described in this manual at any time without prior notice This document is the property of SPL and may not be copied or repro duced in any manner in part or fully without prior authorization by SPL SPLelectronics GmbH Sohlweg 55 41372 Niederkruechten Germany Tel 49 0 2163 983 40 Fax 49 0 2163 983 420 Email info soundperformancelab com Website www soundperformancelab com SPL USA EMail www spl usa com Website info spl usa com 2005 SPL electronics GmbH All rights reserved Names of other companies and their products are trademarks of their respective owners spl 2 GoldMike MK2 Introduction sorserien seet nede hedde es 4 Before You Begin ccsseicccscescessscsacttcaaceceaseds caseabierse teats tau 5 Rear Panel Connec
3. SAMPLE RATE SYNC INPUT DIGITAL OUTPUTS Converter t SYNC LOCK Modet M441 SPDIF SPDIF OPTICAL Madein 2376 m48 INPUT OUTPUT OUTPUT Taiwan The optional 24 96 Converter module model 2376 provides a digital output for the GoldMike MK2 in the form of an S P DIF output with RCA and optical connectors in parallel The converter transmits 24 bit signals The module is based on a 24 bit converter by AKM with a variable sample rate of up to 96 kHz All common sample rates can be selected see below Highly accurate quartz oscillators ensure a clean low jitter master clock Sample Rate The 24 96 AD converter module allows you to select among the four most common sample rates of 44 1 48 88 2 and 96 kHz Using the 44 1 48 button select one of the two basic sample rates out 44 1 kHz in 48 kHz The x2 button doubles these sample rates to select 88 2 or 96 kHz respectively Dig Out The converted S P DIF signal is routed in parallel to the RCA and optical outputs The signal is in professional format with no sample rate data in the status block GoldMike MK2 Options ES Options HE Sync Input The SYNC input allows you to feed an external signal into the converter to control the sample rate since this is an AD converter the SYNC Input is no audio signal input Connect an S P DIF output from your master source e g sound card to the SYNC input The AD converter will automatically
4. The op amp circuits use premium FKP foil condensers which sound much more open than ceramic types and provide more natural dynamic response GoldMike MK2 Technology E Power Supply Go In the case of the power supply no expense was spared After all the power supply is one of the primary factors in the audio quality and overall sound of any device Just like the best coffee beans in the world will not produce a good cup of coffee with poor water the best circuits can t produce a great sound with unreliable inconsistent current The transformer delivers three different voltages each of which is separately screened and regulated 250 V anode current for the tube 48V for phantom power and 2 x 15V for the audio signal path Critical currents are stabilized via a 100 nF MKP foil condenser to ensure sufficient current for even the shortest impulses The transformer is encompassed by double shielding to keep magnetic stray fields to an absolute minimum An AC power cord is included for connection to the standard 3 prong IEC connector The transformer power cord and IEC connector are VDE UL and CSA approved The AC fuse is rated at 315 mA for 220 240V and 630 mA for 110 120 V GoldMike MK2 e 24 Bit 96kHz A D converter upgrades after sale can be done by clients e Lundahl input and output transformers upgrades after sale by authorized service personnel or SPL only 24 96 A D Converter 24 96 AD
5. VERY IMPORTANT All microphones with balanced ground free outputs including tube microphones can be used with the phantom power activated Phantom power should only be activated when using microphones that require it Please be sure to deactivate phantom power with all other microphones Unbalanced microphones may only be used with phantom power deactivated PLEASE ALWAYS FOLLOW THESE INSTRUCTIONS TO ACTIVATE AND DEACTIVATE PHANTOM POWER First connect the micro phone tothe GoldMike MK2 then activate phantom power When finished first deactivate phantom power and wait at least until the 48V LED has gone out completely before disconnecting the microphone This ensures residual current will be discharged Furthermore when changing microphones you should wait until the 48V LED is completely dark before re patching THE GOLDMIKE MK2 S INPUT STAGES CAN BE DAMAGED IF YOU IGNORE THESE PROCEDURES GoldMike MK2 Output RU Off ES Control Elements RU Off ES Phase The phase reverse function reverses the polarity of the micro phone signal inverting the phase by 180 to correct phase inverted signals caused by multiple signal sources A voice over artist for example hears himself during recording through the headphones and simultaneously through the bones in his head Phase inversion will cause an unnatural sound and even minimal variations in distance to the microphone will cause drastic variations in the s
6. all important information can be viewed without distraction Display VU Meter The VU meter shows the internal gain level not the output level Its scale ranges from 20 dB to 6 dB If needed the sensi tivity can be reduced by 10dB which extends the scale to 16 dB see VU Calf above Please refer as well to the information About Gain Adjustments on page 10 GoldMike MK2 Control Elements Display 48 V LED The 48V LED indicates that the phantom power supply is acti vated The 48V LED will slowly dim before going out to indicate that it takes some time for residual current to discharge VERY IMPORTANT The connection between microphone and GoldMikeMKz2 should not be disengaged before the LED is completely dark To avoid damages please note also the phantom power supply usage information on page 11 Display Clip LED The Clip LED shows internal clipping of the GoldMike MK2 To avoid distorted results the Clip LED should never illumi nate during a recording session also refer to About Gain Adjustments on page 10 Display Limit LED The Limit LED shows the activity of the Peak Limiters The Limiter threshold can be set to 12 or 18dBu and for optimal operation should only illuminate in very short intervals If the LED is illumi nating too often even at the 18dB position you must reduce the Gain value and possibly afterwards further adjust the output level to achieve unobtrusive results unless of cou
7. cold 3 hot The Line Input connector is designed for unbalanced signals only The TRS output connectors see Outputs on page 9 can be operated both with balanced and unbalanced wiring Simply use amono 1 4 plug for unbalanced operation GoldMike MK2 7 Rear Panel Connections MIC INPUT 1 TNIANIT Mono Jack Unbal 0dB LINE IN 1 TI 143SNI TRS Jacks Balanced 4dB Use Mono Jacks for Unbal Operation RETURN SEND INSERT 1 Mic Input 1 2 Dynamic condenser or tube microphones can be connected to the Mic inputs The 48V switch provides the phantom power necessary for some microphones see also Control Elements Phantom on page 11 Alternatively the GoldMike MK2 can be equipped with option ally available transformer inputs from Lundahl see Lundahl Transformers on page 22 Line In 1 2 The unbalanced Line Inputs are dedicated to high imped ance high level signals such as A D converters synthesizers or samplers with an impedance of less than 1kOhm Signals with an impedance of above 1kOhm e g instruments like E bass acoustic guitars with pickups or Fender Rhodes must be connected to the Instrument Input on the front panel The max input level of the Line Inputs is 23 dB IMPORTANT The Line Input is deactivated as long as an instru ment is plugged into Instrument Input jack on the front We recommend connecting the Line Input to a patchbay if sources need to
8. sounding saturation Depending on the signal this allows for an effective and subtle level limiting Diode based limiting works very quickly much faster than common VCA or FET based limiters reliably limits even micro second long transients and is very effective for drums and percussion The peak limiter also enables maximum loudness Its degree of activity is displayed via the Limit LED The peak limiter is ideally suited to limit signals with a high degree of transients suchas snare kick brass and other percus sion instruments Sine wave like signals such as vocals flute and layer sounds can also be protected but the degree of increased loudness is limited Overdriving the peak limiter will be audible as distortion an effect quite similar to overdriving the preamplifier In order to avoid irritations please monitor the Clip LED If the Clip LED is not illuminating the distortion is coming from the peak limiter In that case reduce the Threshold value There are two threshold values to choose from 12 dB and 18 dB Limiting is less when selecting the 18dB threshold and intensified when choosing 12 dB If the Limit LED illuminates constantly you should select the 18 dB setting or reduce the Gain control setting also see Limit LED on page 17 After setting the Limiter you can adjust the output level signal for equipment coming next in your chain If you have opted for the internal A D converter you should keep an eye
9. switch to the same sample rate that is received The 2376 is not equipped to accept Word Clock synchronization The yellow Sync Lock LED illuminates when a valid sync signal is present at the Sync input and the converter is automatically synchronized to the external sample rate To prevent interference the internal oscillators are automati cally disabled when an external clock signal is present If the sync signal is no longer present e g in the case of a dropout the converter automatically reverts to the sample rate selected via the converter s control switches Lundahl Transformers Transformers have characteristics usually associated with other analog components like tubes or coils they sound warmer and punchier especially in the bass and mid area and deliver improved presence without boosting the top end One reason for this is that transformers cancel out a large amount of odd harmonics those portions of an audio signal that sound harsh to human ears Equipping the GoldMikeMK2 with transformer based inputs and outputs means you benefit from their unique characteris tics IMPORTANT The GoldMike MK2 s input transformer delivers up to 14 dB of additional passive gain which must be added to the printed values GoldMike MK2 Frequency response Input impedances Microphone XLR Line In TRS Instr In TRS Output impedances XLR and TRS connectors THD N Input level 30dBu 40 dBu 50 dBu 60dBu Noi
10. ain control until the VU shows values between odB and 3 dB There is still enough headroom to prevent clip ping at varying input levels Note that the VUs show average levels instead of peak levels which can be up to 10dB higher Thus in recording high level signals such as snare and kick etc it may be necessary to engage the Pad switch You can drive the Gain harder if you know that unexpected input level changes are unlikely to occur Watch if the Clip LED indi cates clipping in the preamplifier stages and set the VU Cal to 10dB to adjust the VU meter range accordingly IMPORTANT The Clip LED should never illuminate during a recording session to avoid distorted results GoldMike MK2 Control Elements Output This potentiometer adjusts the output level for devices following in the chain or to the converter The Output Level control allows an additional 6dB of amplification or 26dB of reduction Output level values set with the output level control are not indicated by the VU meters which indicate pre amplifi cation levels before this final stage Phantom The GoldMike MK2 provides 48 Volt phantom power for micro phones requiring external current generally condenser micro phones Such microphones are dependent upon a clean consis tent and noise free power supply for optimal operation and audio quality The GoldMike MK2 continuously delivers precisely 48V and a maximum of 14mA which will power all micro phones
11. be changed regularly Inserts 1 2 The balanced TRS Insert connectors Send and Return are used to integrate further units EQs Compressors Limiters Effects into the signal path of the GoldMike MK2 The Send connector is placed behind the tube stage and can also be used as direct out without output level control The Return connector is located in front of Limiter and Output control which allows to control the output level e g for precise drive level of following A D converters GoldMike MK2 Rear Panel Connections Outputs 1 2 The preamplifier signals are fed to these electronically balanced outputs Alternatively the GoldMike MK2 can be equipped with optionally available transformer outputs from Lundahl see Lundahl Transformers on page 22 Since the XLR and 1 4 inch TRS connectors are wired in parallel an unbalanced connection at one connector will cause unbal anced operation in its parallel connector e g if a mono 1 4 inch plug is inserted into the 1 4 inch jack the corresponding XLR socket will also operate unbalanced GND Lift The GND Lift switch separates internal ground from chassis ground The switch can be activated to eliminate ground loop humming which may occur if the GoldMike MK2 is connected to units with a different ground potential The switch should normally be in the GND position to main tain the shielding effect of the metal housing for internal GoldMike MK2 electronics TsSindi
12. d for optimizing the overtones in voice and acoustic instruments Through Flair a recorded signal gains richness in detail pres ence intelligibility for voice and in an increased ability to cut through in a mix In such mixes a Flair processed signal stands out without resort to conventional processing often unsuited to the task saving both time and a need for artificial processing Flairworks through an emphasis in the 1 5 20 kHz range centered around 6kHz The GoldMike MK2 provides for two different settings with a High setting of 2 5dB and a Med with 1 5 dB emphasis An Off setting allows you to deactivate the Flair circuit entirely Tube Amp The Tube Amp switch varies the degree of tube pre amplifica tion added to the discrete class A pre amplification which itself is set with the Gain control The switch allows for three settings 6dB standard 12dB and 18dB In each setting the output of the tube is automatically reduced in proportion to the increased input thus eliminating affects to the overall output level there is no need to recalibrate This allows for instant comparison between varying Tube Amp values and their sonic effects see About Gain Adjustments on page 10 GoldMike MK2 High Off Med gt dB 18 6 12 E Control Elements 5 ES 4 Using the Tube Amp switch Engaging the Tube Amp switch tends to have a significant impact on the overall sound as it directl
13. e instrument amplifier s output signal into an unbalanced one which is then fed to the tube Here an additional 6dB tube amplification is added switchable to 12 and 18 dB with the Tube Amp function The tube type a Sovtek 12 AX7 LPS was also selected after extensive measurements and listening tests This tube type outclasses the standard 12 AX 7 by far and delivers an open transparent sound excellent noise values and is especially reli able An impedance converter adapts the tube s high imped ance signal to the following stages Output Stage The output stage can drive very long connections depending on cable capacities up to several hundred yards The max output level is at 26 dBu allowing plenty of headroom to drive subse quent converters GoldMike MK2 Class A Instrument Input The Instrument Input is a fully discrete impedance converter that also operates in class A mode It is based on a low noise field effect transistor that due to its extremely high input impe dance is especially well suited to this task Relay switching In order to ensure the shortest possible signal paths nearly all switching functions are handled by optimally positioned encap sulated relays with gold plated contacts the switches them selves only trigger the relays Since resistors also greatly affect audio quality the entire audio signal path utilizes painstakingly selected resistors with 0 1 tolerance Foil condensers
14. ly mirrored around the power supply in the center from channel 1 to channel 2 This results in an identical signal flow to supporting a naturally balanced stereo image Additionally the print board provides extra large ground areas maximizing the shielding against crosstalk and interference GoldMike MK2 Before You Begin IMPORTANT Before you operate your GoldMike MK2 first check carefully whether the local voltage setting corresponds to the switch setting on the rear panel If not and the voltage is in one way or another incorrect you will either experience an immediate fuse burn through if the setting is lower than the supplied power or if the power is 110 120 V at a 220 240 V input switch setting the GoldMike Mk will simply not function correctly Moreover make sure you remove the power plug from your GoldMike MK2 before changing this switch setting Always turn volume down or mute your speakers when connecting or repatching audio cables to avoid damage to your speakers and ears It makes good sense to think about where you place your MTC before connecting it It should be positioned so that you can easily reach it but there are other considerations Try not to place it near heat sources or in direct sunlight and avoid expo sure to excessive vibrations dust heat cold or moisture It should also be kept away from transformers motors power amplifiers and digital processors In addition please e Do not open the ca
15. no XLR amp TRS jack Balanced 4dB Use Mono Jacks for Unbal Operation oe OUTPUTS 1 Front Panel Connections Instr Input 1 2 The Instrument input jack is placed on the front panel for easy access It should be used to connect instruments like E bass electric guitars acoustic guitars with pick ups etc The Instrument input features a 1MOhm one Mega Ohm input impedance IMPORTANT As long as an instrument is plugged into front Instrument input the rear panel Line Input is deactivated GoldMike MK2 A P ro 4 Control Elements Power 0 Gain gt P 4 10 Power You guessed that with the Power switch the GoldMike MK2 is activated verified by the illuminating switch Please read Before You Begin on page 5 before throwing in for the first time Gain The Gain control determines the pre amplification of the micro phone signal The pre amplification values cover a range from 14dB up to 67dB IMPORTANT If Lundahl input transformers are fitted the scale values are to be increased by up to 14dB depending upon microphone in use About Gain Adjustments Amplifying a signal to line level should principally be done solely with the Gain control The Output level control is used to adjust the proper drive level for subsequent equipment The VU Cal switch should be set to odB Note The VU displays the pre amplification not the output level Now turn up the G
16. on the A D Ovl LED When this LED illuminates the internal A D converter is clipping Reduce the output level until the A D Ovl LED goes out If external converters are used check their clipping LEDs when setting the output level This placement of the limiter before the output level control helps exploit the headroom of A D converters to the maximum while at the same time offering a signal peak safety margin GoldMike MK2 3 Control Elements Instr Line Mic Ge VU Cal The display range of the VU meter can be shifted using the 10dB VU Cal switch position If the VU Cal switch is set to its odB position and the output level control is also set to odB with the limiter switched off the output level will effectively be odBu With the VU Cal set to 10dB the odB mark on the VU meter will represent a 10dBu output level This way you can display audio level higher than 6dB up to 16 dB on the VU meter Source This switch allows you to select between the Mic and Line Instrument inputs All inputs can remain connected at all times regardless of which input is selected You can choose the Line input as source as long as the Instrument Input is not being used If you engage this switch first after powering up the unit there can bea noticeable pop due to the discharge of residual current This is normal and no cause for concern Central Display The display consists of all status LEDs and the VU meter so that
17. ound Phase inversion is also commonly encountered when using multiple microphones on a single sound source We recommend checking for correct polarity before each recording Pad The Pad switch attenuates the input by 20dB High level input signals can be attenuated in order to prevent overdriving the preamplifier The GoldMike MK2 has a minimum pre amplifica tion of 14 dB But with miked signals such as drums and brass or high level line input signals this may already be too much Engaging Pad attenuates the minimum pre amplification Gain control fully counter clockwise to 6 dB thus providing a useful Gain control range for loud input signals Hi Pass This switch activates the integrated high pass filter which operates at a 50Hz center frequency and 12dB octave often called a rumble filter The filter is entirely passive avoiding additional active circuitry that could potentially degrade the signal and cuts 6dB pre and 6dB post solid state stage pre amplification to prevent the amplification of unwanted low frequency signal components GoldMike MK2 Control Elements Flair As with its predecessor the model 9844 GoldMike the GoldMike MK2 features our sound optimizing Flair circuitry This circuitry takes advantage of a combined coil and tube filtering to enhance signal presence In comparison to simple EQ manip ulation this intensified presence sounds very natural and unob trusive and is particularly suite
18. rse you really want this effect also see the chapter Limiter on page 15 Display AD OVL LED This LED is only active when the optional AD converter module is installed It displays clipping in the internal AD converter and illuminates at approximately 0 5 dB before odBfs This LED should never illuminate when using the internal or an external converter If it does the output level must be reduced accord ingly For further information on the converter module see page 22 Optional Digital Output 24 96 AD converter model 2376 With external converters in use please always check their internal clipping displays GoldMike MK2 Technology ES Solid state and tube stages The solid stage preamp section is based on a fully discrete balanced instrument amplifier and operates 12 single transis tors in class A mode A sophisticated circuitry ensures a nearly constant frequency response at any gain level With an impres sive slew rate of more than 200V us the solid stage is capable to amplify highest frequencies and fastest transients with almost no distortion which is crucially important to achieve a realistic sound experience Coupling condensers were used as spar ingly as possible to avoid their inherent disadvantages such as diffuse sound slurring and loss of dynamics To eliminate DC artifacts these are replaced by servo circuits operating outside of the audio signal paths An op amp subsequently converts th
19. se A weighted R 400hm Gain 30dB 40dB 50dB 60dB Dynamic range 30dB Gain EIN Max Input level Mikrophone XLR Mikrophone XLR PAD Line In TRS connector Instr In TRS connector Instr In TRS connector PAD Max output level Balanced XLR TRS Unbalanced XLR TRS CMRR 1KHz Gain 30dB 10 KHz Gain 30dB Power consumption Gain 30dBu 40dBu 50dBu 60dBu lt 10 Hz to 90 KHz 3 dB 2 8KOhm 10 KOhm 1MOhm 500hm 0 016 0 017 0 022 0 048 91 2dBu 86 6dBu 78 7 dBu 69 3 dBu 110 dB 128 dBu 7 dBu 28 dBu 23 dBu 7 dBu 14dBu 26 8 dBu 21 5 dBu gt 75 dB 75 dB 25W Dimensions BxHxT 482x88 x210 mm 19 28 x 3 52 x 8 4 in Weight Specifications subject to change without notice GoldMike MK2 4 1Kg 9 02 lbs Specifications Guarantee SPL products are guaranteed for a period of one year against faults in materials or workmanship Refer to your local supplier for full sales and guarantee terms Go GoldMike MK2 GoldMike MK2 Notes Manual GoldMike MK2 Model 2485 Rediscover Analog at soundperformancelab com
20. se You may risk very dangerous electric shock and damage to your equipment e Leave repairs and maintenance to a qualified service techni cian Should foreign objects fall inside the case contact your authorized dealer or support person e To avoid electric shock or fire hazards do not expose your unit to rain or moisture e In case of lightning unplug the unit Always unplug the cable by pulling on the plug only never pull on the cable e Never force a switch or knob e Use a soft lint free cloth to clean the case if necessary together with an acid free cleaning oil Avoid any cleaning agents as they may damage the surfaces of the unit GoldMike MK2 ADVLIOA 220 240 V 50 Hz 110 120 V 60 Hz VOLTAGE CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS RISQUE DE CHOC LECTRIQUE NE PAS OUVRIR iring Rear Panel Connections sJajdwes SYJU S S13 13AUOD y q a SWUO gt 6 pue g sased uo suoldiosap Indu aas JOY ay UO Mdu JUaWINA SU au 0 pa 2IUUOD aq 0 ae SWIYOT aAoge SsaduepadW YIM sJuawns suy T Ugy Jamo SaduepadW YIM SJLUSIS 104 x 10 I9UU0I SY JO punoi9 anaays pjoo Sury 04 di P102 oy z punorg T syndjno vm JO SUNM Uld p109 E oy z punoig t syndul 31w MIN
21. ss A impedance converter which premiered in the SPL GainStation preamp Asignificant contribution to the success ofthe predecessor was the hybrid preamplifier concept It combines transistor and tube preamplifier stages and specifically utilizes their technological and sonic advantages The efficiency and low noise of a discrete transistor stage is enriched with musical coloration of a tube stage The transistor stage is composed of single transistors in a class A design The circuitry is fully discrete and each transistor is completely optimized for its specific task You will not find any IC s in this preamplifier stage because they cannot be optimized for this specific application to the degree we aimed for This all new discrete class A transistor stage is a genuine innovation in the entire preamplifier market at this price level The degree of tube pre amplification is no longer the fixed 6 dB value of its predecessor The GoldMike MK2 sports the selec tion of three different tube pre amplifications 6 dB remains the standard complemented by 12 dB and 18 dB This allows creative variety with the tube saturation and limiting effects We have also added an extra Setting to the popular Flair circuitry to give more flexibility to the presence improvement Because the GoldMikeMK2 is a dual channel preamplifier its channel separation is of fundamental importance for the stereo image Therefore the print board layout is symmetri cal
22. tions c cccsssccesseccesseeeeseeeesees 6 WINE sarace eeen ni E AE S 6 General adViICES see Neie eet ee et 7 Mic Input 1 2 Line In 1 2 Inserts 1 2 scesessseceseeeneeees 8 Outputs 1 2 GND Dt sseui 9 Front Panel Connections 9 lte lu It 9 Control Elements ccscccesssccssseeesseeeeseeecsseeecsseeees 10 Power Gain About Gain Adjustments ceeeceeeeeeees 10 OUtpUty El EE 11 Phase Pad Hi PaSS scccscvccsssctevascssevdcadvisvensdversevavtavecess 12 Flair Tube Amp About Tube Amping eeeeeeeeeeeeeeeee 13 lte 15 VU Cal Source Display VU Meter MG ssseeeseseeeerereeeerrrner 16 48V LED Clip LED Limit LED AD OVLLED ee 17 TECHNOLO 2 AR euer SER SR RR eessen canis iusecousteeev ous 18 Solid State and Tube Stages Output Stages eesse 18 Instrument Input Relays Foil Condensers ee 19 Power SUPPLY zeessen iens E S 20 Options A D Converter and Lundahl Transformers 21 Specifications Dimensions amp Weight 23 Garanteret eden sulavacensdeteoecedsabivdestetavtaeuscss 24 lee EEN 25 GoldMike MK2 Contents Introduction The GoldMike MK2 is the result of all our experience and knowledge from its successful predecessor and represents an improved more flexible and more modern version We have added technologies that have already proven to provide superior tonal results in other SPL products For example the instrument input is designed around a cla
23. y changes the sonic character of the tube The higher the Tube Amp value the more you will have tube saturation and harmonic distortion in addition to limiting effects These effects can be used creatively to shape a sound Subtle overdrive of the tube creates moderate saturation effects and relatively little harmonic distortion the limiting effects are already present If this behavior is desired try a 12 dB setting with the Gain control also set to moderate pre amplification For a more dramatic tube sound the Tube Amp switch should be set to 18dB This results in a very audible saturation and harmonic distortion The intensity can then be fine tuned with the Gain control The more gain the more phatt Tube limiting controls peaks in a musically advantageous fashion and can be used to complement the Limiter The tube limiting is not as accurate and sonically neutral as the Peak Limiter because harmonic tube distortion is added to the signal To fully protect connected converters you should keep the Peak Limiter active and monitor the action of the VU meter the Clip and Limiter LED GoldMike MK2 Control Elements Limiter The GoldMike MK2 offers a peak limiter that operates before the output level control This ensures that the limited signal can be controlled as perfectly as possible for the internal or an external converter The peak limiter operates with special diodes that convert signal peaks into a pleasant
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