MCAudioLab MP1 MkII Manual

MCAudioLab MP1 MkII Microphone Preamp Kit
MP1 MkII Mic Preamp Solid State, with OpAmp and Input Transformers
Congratulations and thank you for purchasing the MP1 MkII Mic Preamp Kit. The MP1 MkII Mic
Preamp is based on a classic preamplifier circuit, emulating 70s-era electronic topology.
This kit does not require any specialized or expensive tools or techniques. You simply need to follow
the instructions. However, we would like to provide some useful tips:
Attention to Detail: The most important skill when assembling this kit is meticulousness. A single
misplaced component, an incorrectly oriented part, or a faulty solder joint can prevent your kit
from functioning properly. The key to success is simple: follow the assembly guide closely and
double-check your work.
Good Soldering Practices: Your kit's reliability depends on the quality of your solder joints. Good
soldering technique is essential, but it is a skill you can quickly learn. If you have no prior soldering
experience, start by practicing on a piece of Veroboard with a handful of resistors. After an hour or
two of practice, you should be ready to assemble your kit.
Basic Electrical Knowledge: It's helpful to understand basic electrical and electronic concepts. Do
you know what voltage, resistance, and current are? Can you use a digital multimeter? If the
answer is "no," consider asking a knowledgeable friend for assistance.
PLEASE READ THIS ASSEMBLY GUIDE IN ITS ENTIRETY BEFORE STARTING THE ASSEMBLY PROCESS.
Using Discrete OpAmps (DOA): The MP1 MkII Mic Preamp is designed to accommodate Discrete
OpAmps. The MCAudioLab 816i DOA, our flagship Discrete OpAmp, around which the kit has been
designed. The 816i DOA follows the standard API 2520 OpAmp size and pinout, allowing
compatibility with various 2520 opamps. Each opamp is interchangeable, though performance may
vary depending on the model selected.
Basic Tools Required: Below is a list of essential tools for assembling your audio kit. Though the list
is thorough, don't worry - everything is straightforward!
1. Soldering Iron: A good quality, temperature-controlled soldering iron is essential. It will allow
you to create clean, precise solder joints. Do not use a hot-air soldering gun.
2. Solder: Use high-quality, lead-free solder. We recommend rosin-core solder for optimal flow.
3. Wire Cutters: Sharp wire cutters will be needed for trimming component leads after
soldering.
4. Needle Nose Pliers: These pliers are useful for bending component leads and positioning
parts accurately on the board.
5. Desoldering Pump or Desoldering Braid: In case you need to correct mistakes or remove
excess solder, a desoldering pump or braid is essential.
6. Soldering Iron Tip Cleaner or Sponge: Regularly clean your soldering iron tip by wiping it
with a damp sponge or using a brass tip-cleaning pad.
Copyright © 2025 MCAudioLab
For comments or corrections about this guide, please contact us at www.mcaudiolab.com
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