Manual PHANTOM Dual Channel Microphone, Line & Instrument Preamplifier PAD 48V -20 Off Off PHASE VU CAL dB Clip 48 V So HI PASS Rev. 50 und 20 Hz -10 Limit Performance 3 1 0 10 7 5 3 5 AD OVL Lab Nor. 1 Off Gain 22 21 20 19 18 17 16 15 14 24 27 29 dB 32 35 38 41 44 49 54 60 66 SOURCE INSTR. FLAIR High Off Med VU dB 0 LIMITER 18 Off 12 TUBE AMP 18 6 12 Output INSERT Instr. Line On Mic Off PHANTOM dB dB -10 -9 -8 -6 -12 -5 -14 -2.5 -16 0 -18 2 -20 3.
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.
Contents Introduction ................................................................... 4 Before You Begin ............................................................ 5 Rear Panel/Connections ................................................. Wiring ......................................................................... General advices ........................................................... Mic Input 1/2, Line In 1/2, Inserts 1/2 ........................... Outputs 1/2, GND Lift ................
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 class A impedance converter which premiered in the SPL GainStation preamp.
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 MK2 will simply not function correctly.
3 1 SEND INSERT 2 RETURN 1=Ground, 2=hot(+), 3=cold(-) Pin wiring of XLR mic inputs Effects (EQs etc.) LINE IN 2 Mono Jack: Unbal. 0 dB SERIAL NUMBER VOLTAGE 220 – 240 V~50 Hz 110 – 120 V~60 Hz WARNING AVIS: RISQUE DE CHOC ÉLECTRIQUE - NE PAS OUVRIR RISK OF ELECTRIC SHOCK DO NOT OPEN C AU T I O N TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. DISCONNECT MAINS BEFORE REMOVING COVER. THIS EQUIPMENT MUST BE EARTHED.
Rear Panel/Connections General Advices 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.
Rear Panel/Connections Mic Input 1/2 MIC INPUT 1 Dynamic, condenser or tube microphones can be connected to the Mic inputs. The 48 V switch provides the phantom power necessary for some microphones (see also “Control Elements/ Phantom“ on page 11). MIC INPUT 1 Alternatively the GoldMike MK2 can be equipped with optionally available input transformers from Lundahl (see “Lundahl Transformers“ on page 22). Line In 1/2 LINE IN 1 Mono Jack: Unbal.
Rear Panel/Connections Outputs 1/2 OUTPUTS 1 XLR &TRS Jack: Balanced +4 dB Use Mono Jacks for 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). Unbal.
Control Elements Power 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 22 21 20 19 18 17 16 15 14 24 27 29 dB 32 35 38 41 44 49 54 60 66 Gain The Gain control determines the level of pre-amplification. The pre-amplification values cover a range from +14dB up to + 67dB.
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 +6 dB of amplification or -26 dB of reduction. Output level values set with the output level control are not indicated by the VU meters, which indicate pre-amplification levels before this final stage. Output -10 -9 -8 -6 -12 -5 -14 -2.5 -16 0 -18 2 -20 3.5 -22 -24 5 5.
Control Elements Phase PHASE Rev. The phase reverse function reverses the polarity of the microphone signal, inverting the phase (by 180°) to correct phaseinverted signals caused by multiple signal sources. A voiceover 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 sound.
Control Elements Flair FLAIR High Off Med 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 manipulation, this intensified presence sounds very natural and unobtrusive, and is particularly suited for optimizing the overtones in voice and acoustic instruments.
Control Elements Using the Tube Amp switch Engaging the Tube Amp switch tends to have a significant impact on the overall sound, as it directly 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.
Control Elements Limiter LIMITER 18 Off 12 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-sounding saturation. Depending on the signal, this allows for an effective and subtle level limiting.
Control Elements VU-Cal VU CAL -10 dB The display range of the VU meter can be shifted using the -10dB VU Cal switch position. 0 If the VU Cal switch is set to its 0 dB position and the output level control is also set to 0dB with the limiter switched off, the output level will effectively be 0 dBu. With the VU Cal set to -10 dB the 0 dB mark on the VU meter will represent a +10 dBu output level. This way you can display audio level higher than +6 dB (up to +16 dB) on the VU meter.
Control Elements Display/48 V LED The 48V-LED indicates that the phantom power supply is activated. 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 GoldMikeMK2 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.
Technology Solid state and tube stages The solid stage preamp section is based on a fully discrete, balanced instrument amplifier and operates 12 single transistors in class A mode. A sophisticated circuitry ensures a nearly constant frequency response at any gain level. With an impressive slew rate of more than 200V/µs 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.
Technology 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 impedance, 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, encapsulated relays with gold-plated contacts (the switches themselves only trigger the relays).
Power Supply 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 voltages.
Options • 24-Bit/96kHz A/D converter (after sale upgrades can be done by clients). • Lundahl input and output transformers (after sale upgrades by authorized service personnel or SPL only).
Options 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 switch to the same sample rate that is received. The 2376 is not equipped to accept Word Clock synchronization.
Specifications Frequency response ‹10 Hz to 90 kHz (-3 dB) Input impedances Microphone, XLR Line In, TRS Instr. In TRS 2,8 kOhm 10 kOhm 1 MOhm Output impedances XLR and TRS connectors 50 Ohm THD+N Input level -30 dBu -40 dBu -50 dBu -60 dBu 0,016 % 0,017 % 0,022 % 0,048 % Gain 30 dBu 40 dBu 50 dBu 60 dBu Noise, A weighted, R=40Ohm Gain 30 dB 40 dB 50 dB 60 dB Dynamic range, 30 dB Gain -91,2 dBu -86,6 dBu -78,7 dBu -69,3 dBu 110 dB E.I.N 128 dBu Max.
Guarantee All SPL products come with a two-year manufacturer’s guarantee against defects in material or assembly from the date of purchase. End users are supported in the two-year guarantee through their distributor or dealer. In such cases, please contact your dealer for full guarantee conditions and service. Direct SPL product support requires product registration. Please fill out the guarantee card enclosed in the package legibly in printed letters and send it directly to SPL.
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