SPL Audio GoldMike MK2



Modification: Without Modification: Lieferung in 1-2 Werktagen

Modification: Lundahl Transformer + ADC192: Lieferzeit auf Anfrage

  • Stereo tube preamplifier
  • +48V phantom power
  • XLR and TS input
  • XLR and TRS output (+ optional 2 digital outputs)

Produkt vergleichen SKU: N/A Categories: ,

The GoldMike Mk2 from SPL is a microphone and instrument preamplifier. Here the advantages of Class A transistor amplification are paired with warm tube technology. The 16 individual transistors of the preamp are capable of transmitting signals with high dynamics and very low distortion. Thanks to the tube sound, pleasant harmonics are added to round out the sound musically.

Inputs and outputs (XLR, TS):

  • Maximum input level: 23dBu
  • Maximum output level (balanced): 26.8dBu
  • Maximum output level (unbalanced): 21.5dBu
  • Input impedance: 10dBu
  • Output impedance: 50Ω
  • Common mode rejection (0dBu, 1kHz): 70dB
  • Frequency response (-3dB): 10Hz – 90kHz
  • THD + N (0dBu, line gain unity, tube gain +6dB, 10Hz – 22kHz): 0.04%.
  • Noise (A-weighted, 600Ω): -88.5dBu
  • Dynamic range: 110dB

Tube Preamp

The Class A transistor preamp has 48V phantom power, a phase shifter, pad switches and a Butterworth high pass filter whose cutoff frequency is set at 50Hz. The instrument input also operates in Class A mode and is designed as a discrete impedance converter. Via the insert and return of a channel, effects devices can be connected between the preamp and the output.

The VU meters show the current working level, while the corresponding clip LED warns of overload. If the optional AD converter is installed, the AD OVL LED warns of clipping of the converter. The integrated limiter is based on diodes and creates analog saturation effects. However, it is at the same time so fast that it is suitable as a peak limiter. The “Flair” switch can be used to add harmonics and boost the presence range very pleasantly. The combination of tube and the built-in coils musically enriches your sound and provides assertiveness. The tube gain can be adjusted in three stages. The higher the level, the more clearly saturation effects and harmonics appear.

Microphone preamplifier:

  • Maximum input level (Mic): 7dBu
  • Maximum input level (Mic, PAD): 28dBu
  • Input impedance (Mic): 2.8kΩ
  • Common mode rejection (1 kHz, 30 dB gain): 75dB
  • Frequency response (Tube Gain +6 dB, -3 dB): 10Hz – 93kHz
  • Frequency response (Tube Gain +12 dB, -3 dB): 10Hz – 61kHz
  • Frequency response (Tube Gain +18 dB, -3 dB): 10Hz – 34kHz
  • THD + N (30 dBu, 10 Hz – 22 kHz): 0.016%.
  • Noise (A-weighted, 150 Ω, 30 dB gain): -91.2dBu
  • E.I.N.: -128dBu
  • Dynamic range: 110dB

Instrument Preamplifier:

  • Maximum input level (instrument): 7dBu
  • Maximum input level (instrument, PAD): 14dBu
  • Input impedance (instrument): 1MΩ
  • Frequency response (Tube Gain +6dB, 600Ω, -3dB): 10Hz – 68kHz
  • Frequency response (Tube Gain +12dB, 600Ω, -3dB): 10Hz – 51kHz
  • Frequency response (Tube Gain +18dB, 600Ω, -3dB): 10Hz – 35kHz
  • THD + N (Tube Gain +6dB, 10Hz – 22kHz): 0.05%.
  • Noise (A-weighted): -95.5dBu
  • Dynamic range: 105dB

Optional equipment for the GoldMike MK2

Luhndahl Transformer (Premium)

Transformers are transformers that are used as an alternative to electronic balancing stages in inputs and outputs. They are often used in audio engineering because they round off the fundamental range and give it a bit more punch. In addition, trebles sound more present and silky. However, to achieve the highest precision in signal transmission, electronic stages should be used. Therefore the taste and application case decide here. If the Luhndahl transformers are used in the microphone input, they provide an additional gain of 14dB and thus relieve the preamplifier. Also, no noise is added, since the translation raises the level passively in the transformer. Therefore, the input transformer has a greater importance in preamplifiers. However, the sound unfolding is only completed with both transformers together.

AD converter module 1090

There are two digital outputs and one digital sync input on the 24-bit converter card. Input and output 1 are S/PDif, output 2 is optical (Toslink).

The internal sample rate can be set individually to 44.1, 88.2 and 96 kHz. If an external synchronization signal runs via the Sync Input, the values 32, 176.4 and 192 kHz can be selected.

Transformer + converter module

The largest version incorporates both Luhndahl transformers and the AD converter module.

Weight N/A
Dimensions 54 × 38 × 18 cm

ADC192, Lundahl Transformer, Lundahl Transformer + ADC192, Without Modification










S/PDIF, sym. Jack, Toslink, unsym. Jack, XLR



Einheiten (HE)



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