The GoldMikeMK2 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.
A significant contribution to the success of the 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 at SPL aim 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 GoldMikeMK2 sports the selection 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 symmetrically 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.
Frequency response: ‹10Hz bis 90kHz (-3dB)
Microphone, XLR: 2,8kOhm
Line In, TRS: 10kOhm
Instr. In TRS: 1mOhm
Output impedance (XLR and TRS): 50Ohm
Input level -30dBu, Gain 30dBu: 0,016 %
Input level -40dBu, Gain 40dBu: 0,017 %
Input level -50dBu, Gain 50dBu: 0,022 %
Input level -60dBu, Gain 60dBu: 0,048 %
Noise (A-weighted, R=40Ohm)
Gain 30dB: -91,2dBu
Gain 40dB: -86,6dBu
Gain 50dB: -78,7dBu
Gain 60dB: -69,3dBu
Dynamic range (Gain 30dB): 110dB
Max. input level
Microphone, XLR: +7dBu
Microphone, XLR +PAD: +28dBu
Line In, TRS: +23dBu
Instr. In TRS: +7dBu
Instr. In TRS +PAD: +14dBu
Max. output level
Balanced, XLR+ TRS +26,8dBu
Unbalanced, XLR+ TRS +21,5dBu
1 KHz, Gain 30dB: ›75dB
10 KHz, Gain 30dB: ›75dB
Power consumption: 25W
Dimensions: W x H x D (mm) 482 x 88 x 210
Specifications subject to change wihout notice.
24Bit/192kHz AD Converter Module 1090
Internal analog to digtal converter module (optional digital output)
The Analog/Digital Converter Module 1090 is an optional digital output for compatible SPL units (see below) with a plug-and-play design for easy installation.
It offers an S/P-DIF output with both coaxial and optical connectors in parallel.
The heart of the module is a 24-bit converter with a variable sample rate of up to 192 kHz. Highly accurate quartz oscillators ensure a clean, low-jitter master clock.
The internal sample rate can be switched between 44.1, 48, 88.2 and 96 kHz. Other sample rates (32, 176,4 and 192 kHz are set by external syncronization.
The converter can be synced to other digital devices via a S/P-DIF input.
The internal oscillators are automatically disabled when an external clock signal is present to prevent interference.
An extremely effective voltage stabilizing circuit ensures that the converter continuously receives sufficient and stable voltage – an important prerequisite for clean, transparent audio.
The compact design of the input stage guarantees the shortest possible signal path to the converter. Overdimensioned grounding surfaces on both sides of the circuit board effectively reduce interference and ensure optimal separation between analog and digital components.
Internal sample rates: 44.1, 48, 88.2, 96 kHz
External sample rates: 32 kHz, 176,4 kHz and 192 kHz
Dynamic range: 112 dB (A-weighted)
THD+N (@-1 dBFS/1 kHz): 0,0007%
Frequency response (48 kHz): 10 Hz-22kHz, ±0.2 dB
Jitter (average; 700 Hz-100 kHz): ‹ 300 ps
Stop band attenuation: -105 dB @48 kHz; -102 dB @96 kHz
0 dBFS: = +15 dBu
Power consumption +15 V: max. 115 mA
Power consumption -15 V: max. 17 mA
Dimensions (W x H x D): 100 x 27 x 76 mm (3.94 x 1.06 x 3 in.)
Weight: 68 g (2.39 oz.)