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Table of Contents
Summary of Contents for Zieaz LCA1
- Page 1 Zieaz™ Microphones Model: LCA1 Instruction Manual Company website: Zieaz.net Webshop: Z-microphones.net EMC 2014/30/EU; DS/EN 55032:2015 (Radiation Emission). DS/EN 55035:2017 (RF immunity @ 3V/m). RoHS 2011/65/EU. Waste from Electrical and Electronic Equipment (WEEE). 1 of 25 v1.0 January. 2022...
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Page 2: Table Of Contents
Frequency Response..........................5 Polar Response............................5 Cardioid..............................5 Accessories..............................6 Zieaz™ HDMI® to 3-Pin XLR schematic................... 8 Radio immunity/noise:..........................9 HDMI® version 2.1..........................9 Example with a mobile phone setup; Wi-Fi + 4G phone connection enabled..10 Advice when recording to avoid Radio Noise:................11 Supplying Power............................ -
Page 3: Introduction
It should be as useful as possible, as practical possible and last as long as possible. A Zieaz™ Microphone is build with the concept of “Precision where It matters”. And means that the microphone is build to balance usefulness and enough mechanical robustness, to last for about 3 human generations. -
Page 4: Specifications
90dB SPL. Power Requirement: Phantom P48 Output Connection: 19 pin HDMI®. See pin schematic for 3- pin XLR connection. Requires a Zieaz™ HDMI to XLR patch cable for use with standard music equipment. Net Weight: 182 Grams; about 170g of Brass (CuZn40Pb2/CW617N). -
Page 5: Frequency Response
Frequency Response Please refer to individually measured data for most accurate frequency curve. Example form SN: 2021002 (+ 2,8dB at 55Hz, -2dB at 1,7KHz, -1dB at 20KHz). +4dB -4dB Polar Response Cardioid. The polar response curve is a guideline for how to place the microphone at the sound source. -
Page 6: Accessories
Shock mount is under development. Please subscribe to printed) relevant newsletter on zieaz.net or contact us for updates. Never connect or use an Active or Optical HDMI® cable, digital device as PC display output/input, TV/Overhead etc. as the electronic components in the cable/device can be damaged permanently, when connected to the Phantom P48 power from the audio device. - Page 7 7 of 25 v1.0 January. 2022...
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Page 8: Zieaz™ Hdmi® To 3-Pin Xlr Schematic
Zieaz™ HDMI® to 3-Pin XLR schematic 8 of 25 v1.0 January. 2022... -
Page 9: Radio Immunity/Noise
HDMI® version 2.1 is different to earlier versions in terms of shielding (also known as “Pin 1 problem”) . A Zieaz™ Microphone is only sold with version 2.1 for compliance to CE regulations regarding RF-immunity. However the microphone can be used with lower versions than 2.1 (backwards compatible), at the users own risk of recording unintended... -
Page 10: Example With A Mobile Phone Setup; Wi-Fi + 4G Phone Connection Enabled
Example with a mobile phone setup; Wi-Fi + 4 G phone connection enabled. The LCA1 microphone comply with a fi eld strength of 3V/m: domestic grade immunity to radio signals. That means that if a mobile phone transmit 2 Watts of radio power and is about 2,7 meters from the microphone, the radio interference or “noise”... -
Page 11: Advice When Recording To Avoid Radio Noise
We recommend connecting all cables with P48 phantom power in OFF mode, to prevent wear on device protective components. The LCA1 microphone requires P48 volts phantom power. When using with devices with no P48 volts phantom power option, an external phantom power supply is needed. -
Page 12: Microphone Placement
Microphone Placement The LCA1 has its front where the grid is, and it is the centre of sensitivity (0 Degree angle). Preparing for basic usage at 0° Deg. Angle We recommend starting with no effects like EQ/filtering/compressor/dynamics, when adjusting the appropriate preamp level in the “analogue domain”. -
Page 13: Recording Sounds Of Different Types
Recording sounds of different types. Dynamic range & online tools Depending on the sound source’s dynamic range, you can estimate the proper gain setting in the analogue domain, and afterwards add various sound processing. There are some limits to consider if want to use the microphone up-close (1 to 30cm), or from to 1 meter to 10 meters. -
Page 14: A Low-Loudness Singer & Use Of Pop-Filter/Pop-Shield
The microphone also performs better in dryer air, as cm, and placed about 20 cm humidity plays a role in the way sound is transferred form the LCA1 to the diaphragm of the microphone. 14 of 25 v1.0 January. 2022... -
Page 15: A Dilemma & Practical Issue
A dilemma & practical issue Example 2: A Trombone at 18cm (assumed to be played that loud...) ; because the waveform of the trombone has high peaks of high frequencies (greater than 1000Hz) , the “Max dB at 0cm” turns yellow to indicate the near maximum limit of the microphone. -
Page 16: Close Miking
Importance to Pad/Gain level in the analogue domain: Since the “Max dB at 0cm” is around 129dB, the peak voltage at peak sound pressure in the LCA1 microphone will reach about +5,2 dBu (1,4 Volts RMS ), so when connected to a -4dBu (0,49 Volt RMS) full-scale preamp, the signal from the microphone needs to be reduced before the gain stage in the preamp to prevent distortion. -
Page 17: Overhead Miking
Overhead Miking Example 4: “Overhead Miking”; In this example the microphone is placed at 2 meters distance from a piano. Assuming that the recording finds place in a concert hall; there will be some background noise from the audience, actors, technical equipment and re-vibration from walls etc. -
Page 18: Storage & Handling
HDMI cable. The LCA1 should be unplugged from the HDMI cable, by pulling from the sides on the back (green circles) , in a straight motion to minimize stress on the plug and the HDMI cable. -
Page 19: After Usage
Using a “Pop filter” to reduce moisture is recommended. Transportation: The LCA1 microphone should be stored in dry place between 5° to 60° degrees Celsius. Using a optional 3D Printed TPU/TPE case for the LCA1 microphone, will protect the microphone against drops, that can damage the the microphone, add dents and/or scratches. -
Page 20: Cleaning & Polish Guide
Cleaning & Polish guide Why? At Zieaz™ we have chosen not to use lacquer or paint on our products. Some of the reasons for this is to reduce the environmental chemical load, and working with brass over stainless steel with higher mechanical strength, requires stronger machinery + liquid cooling and higher cutting-tool wear. - Page 21 The procedure does not promise a desirable result, as scratches, dents cannot be recovered by polishing. And very stubborn patina requires specialized recovery work at a Zieaz™ authorized workshop. Visit our webshop for guidance for our cleaning/polishing and diaphragm replacement services at: https://z-microphones.net/shop...
- Page 22 Press the microphone firmly down to the wet-wipe or printer-paper while pulling/pushing from side to side until an acceptable result is achieved on each side. When polishing the opening with the grid; have 1 side open, so the air pressure does not harm the diaphragm. Optional;...
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Page 23: Future Upgrades & Modifications
3. Allergies caused by handling brass parts with skin contact. Copper hypersensitivity is very rare. 4. As proven by many studies; Copper alloys (as the brass used for the LCA1 microphone) ; are antiviral and antibacterial with relative effective results. -
Page 24: Return Policy
Please refer to the Cleaning & Polish guide in this manual, for optimum hygiene when using the LCA1 microphone. 4. Any upgrades or modifications made by user is not covered by Zieaz™ product guarantee, as Zieaz™ is unable to verify or test the altered product. -
Page 25: Recycling & End Of Life Condition
Recycling & End Of Life condition The LCA1 Microphone should be returned to a Zieaz™ Microphones workshop even if a repair is not possible: A recycling reward may be issued to the submitter: a fixed discount amount, or • electronic payment/bank transfer.