SKU: 9256180645

SPL GoldMike MK2 Dual-Channel Preamplifier

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Description

SPL GoldMike MK2 Dual-Channel PreamplifierThe 2485 GoldMike MK2 from SPL is a discrete, Class A, transistor stage, dual channel microphone and instrument preamplifier. Like its predecessor, the GoldMike Mark2 retains a hybrid solid state and tube construction to combine the best of both worlds. Available as an option is a 24 bit, 192 kHz A to D converter. The rackmountable GoldMike MK2 has updated tonal flexibility and versatility, making it a useful dual channel front end for almost any

The 2485 GoldMike MK2 from SPL is a discrete, Class-A, transistor-stage, dual-channel microphone and instrument preamplifier. Like its predecessor, the GoldMike Mark2 retains a hybrid solid state and tube construction to combine the best of both worlds.

Available as an option is a 24-bit, 192 kHz A to D converter.

The rackmountable GoldMike MK2 has updated tonal flexibility and versatility, making it a useful dual-channel front end for almost any modern production environment.

The GoldMike MK2 is the result of all our experience and knowledge from its earlier predecessor and it represents an improved, more flexible and modernized version.

We have added technologies that have already been proven to provide improved 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. The is a discrete Class-A transistor stage crafted specifically for this preamplifier.

The degree of tube pre-amplification is no longer the fixed +6 dB value of its predecessor. The GoldMike MK2 sports the selection of three different tube pre-amplifications: +6 dB remains the standard and is complemented by +12 dB and +18 dB. This allows creative variety with the tube saturation and limiting effects.Experiment as you wish to achieve the sounds you are looking for.

We have also added an extra setting to the popular Flair circuitry to give increased flexibility to the "presence" improvement.

Because the GoldMike MK2 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.

Adjust the sound of your world with the GoldMike MK2.

Discrete Class-A solid stage
Tube-drive in three different intensity levels
2-Channel Class-A microphone and instrument preamplifier
Adjustable tube-preamplification circuitry
Flair presence enhancement in two switchable settings
Pre-output limiter stage (faster diode-based operation, for A/D converter protection)
Front-panel instrument input, separate rear-side microphone and line inputs
Phantom power, phase reverse, pad and high-pass filter (50Hz)
Switching inserts
VU metering with three different, switchable display ranges
Available as an option is a 24-bit, 192 kHz A to D converter.
In the Box
SPL GoldMike MK2 Dual-Channel Preamplifier
  • Limited 2-Year Warranty
Number of Channels Two
Frequency Response �10 Hz to 90 kHz (-3 dB)
Input Impedances PER CHANNEL
Microphone, XLR: 2.8 kOhms
Line In, TRS: 10 kOhms
Instrument In, TRS: 1 MOhm
Output Impedance XLR and TRS: 50 ohms
THD + N Input level -30 dBu, Gain 30 dBu: 0.016 %
Input level -40 dBu, Gain 40 dBu: 0.017 %
Input level -50 dBu, Gain 50 dBu: 0.022 %
Input level -60 dBu, Gain 60 dBu: 0.048 %
Noise A-weighted, R=40 ohms
Gain 0dB: -91.2 dBu
Gain 40 dB: -86.6 dBu
Gain 50 dB: -78.7 dBu
Gain 60 dB: -69.3 dBu
Dynamic Range Gain 30 dB: 110 dB
E.I.N. Microphone Preamplifier 128 dBu
Ground Lift Yes
Maximum Input Level Microphone, XLR: +7 dBu
Microphone, XLR +PAD: +28 dBu
Line In, TRS: +23 dBu
Instrument In TRS: +7 dBu
Instrument In TRS +PAD: +14 dBu
Maximum Output Level Balanced, XLR+ TRS +26.8 dBu
Unbalanced, XLR+ TRS +21.5 dBu
CMRR 1 KHz, Gain 30 dB: �75 dB
10 KHz, Gain 30 dB: �75 dB
Phantom Power Yes, 48 V switchable
A/D Converter An optional A to D converter is available
Power Compatibility Switchable
100 to 120 V / 60 Hz
220 to 240 V / 50 Hz
Fuse: 315 mA
Power Consumption 25 W
Dimensions (WxHxD) 19.0 x 3.5 x 8.3" (482 x 88 x 210 mm)
Weight 9.0 lb (4.1 kg)
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9256180645

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4.7 ★★★★★
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K
Verified Purchase
KW
Whiting, US
★★★★★ 5
Worked on slow leak… one month already!!!
Style: 18oz
Edit: Still holding proper pressure at 2-months !!! Had a slow leak where my tire went from 44psi to ~18psi over 2-3 days… Dashboard light would let me know every few days that I had a tire problem and I would inflate the tire back up to 44psi… Anyway, I used this product and filled air back to 44 psi and it’s held the pressure for a month already !!!! Be sure to deflate tire to ~15 PSI before adding the product… it only took about 30 seconds to empty the container into my tire with the tire pressure low. Very happy with this product !!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
K
Verified Purchase
Kindle Customer
Houston, US
★★★★★ 5
Excellent stuff!
Style: 18oz
Used this on a Z-Trac with a flat and it fixed it and has held up for over 8 months.
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Reviewed in the United States on May 11, 2026
J
Verified Purchase
John V. Green
Charlottesville, US
★★★★★ 5
Greats stuff
Style: 14oz
Works super, has kept air steaycfor over 6 months, no leaks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
C
Verified Purchase
Chris_9725
Massapequa, US
★★★★★ 4
Effective temporary fix
Style: 18oz, Style: 18oz
The slim brand has always been an genuine effective fix. I have been using slime since I used to ride on bicycles. Well it is not a permanent fix for if you have a hole in your inner tube it is a great fix to hold you over until you are able to get to either the mechanic or to your local store to get a replacement inner tube. Overall, it's worth every penny and you get plenty in the canister that it comes in depending on which slime you are getting whether that's the plastic bottle for your inner tubes for a bicycle or the metal canister as I've shown in my picture for your SUVs trucks or vans. However I don't give this an entire five stars but more of four stars not because of their product but because resorting to using slime rather than fixing the problem is more of my own problem. ⭐⭐⭐⭐ 👍👍
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Reviewed in the United States on February 25, 2024
C
Verified Purchase
Chara P.
Houston, US
★★★★★ 1
Don't buy doesn't work
Style: 18oz, Style: 18oz
Terrible did nothing. Even tried to let wheel turn 360 degrees yet the solution get in the tire leak proper. Directions on can differ from instructions on here/Amazon. I followed directions on can EXACTLY and still didnt even hold one PSI of air. I'd be better off burning the $10 for warmth rather then waste it this way
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Reviewed in the United States on May 25, 2026

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