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GoldMike Mk2

R 37,525.00
GoldMikeMk2GoldMike Mk2

Class-A meets Tube

The GoldMike Mk2 is a hybrid preamplifier consisting of a discrete transistor stage and tube stage. The hybrid design of the preamplifier combines the advantages of semiconductors (high dynamics with low distortion, low noise) with the musical qualities of tube sound (pleasant high/overtone spectrum, beautiful three-dimensionality).

The microphone class A transistor preamplifier is discretely constructed from 16 individual transistors.

The preamplifier features 48 V phantom power, polarity inversion, padding and a Butterworth Hi Pass filter.

 

Instrument

The instrument input is a discrete impedance converter that also operates in class A mode.

The core is a low-noise field-effect transistor, which is ideally suited as an impedance converter due to its very high input resistance.

Insert

A compressor, de-esser, limiter or even a reverb unit can be switched between preamp and output.

VU

The VU shows the audio “energy” level, the clip LED warns of clipping. If optional AD converters are installed, the AD OVL LED also warns of converter overloads.

Limiter

The limiter is based on diodes whose characteristic curve produces a nice, analog saturation effect and thus unobtrusively limits the signal peaks.

Its speed makes it suitable as a peak limiter, which can intercept transients in the microsecond range and can thus function very well as protection for the AD converter.

Flair

This circuit uses the pleasant sound characteristics of the coils in combination with the tube to emphasize the presence range. It is ideally suited to intensify the overtone range of voices and acoustic instruments, thus improving the ability to cut through in the mix.

Tube Amp

The proportion of tube gain to total gain can be switched in three stages. The higher the value, the more pronounced are the saturation effects and overtones of the tube.


Specifications:

Line/Insert inputs & outputs; XLR (balanced) & Jack (unbalanced)

Maximum input gain: 23 dBu
Input impedance: 10 dBu
Maximum output gain (balanced): 26,8 dBu
Maximum output gain (unbalanced): 21.5 dBu
Output impedance: 50 Ω
Common mode rejection (1 kHz, 0 dBu): 70 dB
Frequency range (-3 dB): 10 Hz – 90 kHz
THD + N (0 dBu, Line Gain unity, Tube Gain +6 dB, 10 Hz – 22 kHz): 0,04 %
Noise (A-weighted, 600 Ω): -88,5 dBu
Dynamic range: 110 dB

Microphone Preamplifier

Maximum input gain (Mic): 7 dBu
Maximum input gain (Mic, PAD): 28 dBu
Input impedance (Mic): 2.8 
Frequency range (Tube Gain +6 dB, -3 dB): 10 Hz – 93 kHz
Frequency range (Tube Gain +12 dB, -3 dB): 10 Hz – 61 kHz
Frequency range (Tube Gain +18 dB, -3 dB): 10 Hz – 34 kHz
THD + N (1 kHz, 30dBu Gain): 0.016 %
Noise (A-weighted, 150 Ω, 30 dB Gain): -91.2 dBu
E.I.N.: -128 dBu
Dynamic range: 110 dB

Instrument Preamplifier

Maximum input gain (Instrument): 7 dBu
Maximum input gain (Instrument, PAD): 14 dBu
Input impedance (Instrument): 1 
Frequency range (Tube Gain +6 dB, 600 Ω, -3 dB): 10 Hz – 68 kHz
Frequency range (Tube Gain +12 dB, 600 Ω, -3 dB): 10 Hz – 51 kHz
Frequency range (Tube Gain +18 dB, 600 Ω, -3 dB): 10 Hz – 35 kHz
THD + N (Tube Gain +6 dB, 10 Hz – 22 kHz): 0,05 %
Noise (A-weighted): -95.5 dBu
Dynamic range: 105 dB

Internal Linear Power Supply with Toroidal Transformer

Operating voltage for analog audio: +/- 18 V
Operating voltage for relays and LEDs: +12 V
Tube anode voltage: +250 V
Tube heating voltage: +12,6 V
Phantom power: +48 V

Mains Power Supply

Mains voltage (selectable): 230 V AC / 50; 115 V AC / 60 Hz
Sicherung für 230 V: T 315 mA
Sicherung für 115 V: T 630 mA
Power consumption: max. 25 W

Dimensions & Weight

W x H x D: 482 x 88 x 210 mm / 19 x 3.46 x 8.23 inch
Unit weight: 4.1 kg / 9.04 lbs

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GoldMike Mk2

R 37,525.00
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