JZ Microphones Black Hole BH1S User manual

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The Black Hole Series Microphones
Owner’s Manual

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Safety Precautions
Detailed safety precautions:
Please read all safety precautions and operating instructions before attempting
to operate the unit. Keep all safety precautions and operating instructions for
future reference.
Water and moisture:
Condenser microphones are extremely moisture-sensitive. Never use your
microphone in close proximity to water (e.g. bath tubs, wash basins, sinks,
washing machines, pools, etc.).
Damage:
Take care not to drop your microphone as this can lead to severe damage. JZ
Microphones assumes no liability for any damage caused by the user!
Service and care:
After each use, remove the microphone from its mount and wipe the
microphone down with a soft cloth and place it back into its protective casing
(included with the microphone).
Never open the microphone as it will void warranty!
Refer all servicing to qualified and manufacturer`s appointed personnel.
Servicing is required when the microphone is damaged in any way, such as
liquid has been spilled or objects have been fallen into the microphone, the
microphone has been exposed to rain or moisture, microphone does not
operate normally or has been dropped. Never remove grille covers in order to
service microphone capsule. The capsule system does not contain any user
serviceable parts.
Usage:
Only use attachments or accessories specified by the manufacturer. Check if
packing contains all of the items listed. If any of these items are missing, contact
your nearest JZ Microphones dealer or JZ Microphones directly.

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Always turn down the levels (means no sound) of the microphone pre-amp or
console while connecting or disconnecting the microphone to avoid possible
damage to your speakers or headphones.
The Black Hole series microphones set up
1. Take the microphone out of the box.
2. Replace the shipping screw from included shock-mount with the included
thumb screw. To unscrew the shipping screw use either the included thumb
screw or appropriate screw driver, or you can use the coin if you have one with
you. (see pictures)
3. Mount the shock-mount on the microphone stand. When it is done, take your
BH microphone, squeeze the shock-mount so it`s both circular ends fits the two
metal pins inside BH microphone and accurately apply the microphone on the
shock-mount and ensure that microphone sits safe on the shock-mount
4. Included shock-mount gives you the opportunity to position and angle your
microphone to the sound source in many various ways for desired results to be
achieved (see pictures)
Tip: When using your BH series microphones on drum overheads you can apply
included shock-mount from the front of the microphone.
BH1S packing includes:
1 x Wooden case
1 x BH1S microphone
1 x Standard shockmount
1 x Thumb screw
1 x Warranty sheet
BH1S packing includes:
1 x BH1S microphone
1 x Standard shockmount
1 x Thumb screw
1 x Warranty sheet

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Installation:
Before mounting your shock-mount on a microphone stand replace the shipping
screw from the shock-mount with included thumb screw for easy operation.
Squeeze the shock-mount and carefully put on the microphone.
There is removable adapter in microphone`s swivel mount which lets you
mount it on mic stands with either metric (Europe) or imperial- gauge threads
(North America). Make sure that your microphone is standing safe on the shock-
mount.
The angle of the microphone to the sound source influences the sound of your
recording; therefore, experiment with different positions until you achieve the
desired sound.
As all our microphones are extremely high quality, we recommend to use a
highest quality balanced XLR microphone cables in connection with highest
quality microphone preamps to grant cleanest signal path from the sound
source to your recording equipment.
The Black Hole series microphone models
The BH series includes 2 microphone models with different capsules, polar
pattern and pad options:
BH1S
Large diaphragm condenser microphone GDC2 capsule
Class A discrete electronics
3 polar patterns: cardioid, figure of 8, omni -10 and -20dB PAD
5 year warranty
BH2
Large diaphragm condenser microphone GDC1 capsule
Class A discrete electronics
Fixed cardioid polar pattern
5 year warranty
All BH series microphones operate on 48 volt phantom power.

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The Golden Drop Capsule (GDC)
The soul of each and every Black Hole Series microphone is the unique Golden
Drop Capsule (GDC) technology, created by JZ Microphones’ founder and lead
designer Juris Zarins.
Using this innovative technology, the capsule’s diaphragm is lighter; therefore, it
moves and gets to its default position faster than the same capsule’s diaphragm
without Golden Drop technology. It gives more clarity, precision, fewer
colorations and distortions in frequency response.
This method of capsule-making has been unique to JZ Microphones and since
the beginning and will remain a closely guarded secret.
GDC technology also allows you to create a matched pair using any two of the
Black Hole Series microphones that have already been crafted or will be
produced in future.
Electronics
All JZ Microphones products use Class A discrete electronics, where all
components are tested and measured for a maximum performance and grants
to the audio signal cleanest path and extremely low self noise properties before
any recording gear. All components are hand soldered by our engineers to avoid
overheating of selected parts. While soldering the components, either it is done
by un-experienced engineer or bad programmed machine, overheating can ruin
specifications of very carefully selected electronic part.
BH series microphones are tube-less at this point, therefore electronic circuit is
designed to work perfectly without tube as modern electronics is developed to
manage the signal path without it.
BH series microphones are transformer-less, therefore electronics are de-
signed to have maximum performance with minimum self noise without the
transformer.
BH1s and BH3 series microphones comes with a PAD switch to have an option to
lower the signal level from -5dB to -20dB depending on microphone model. Our
PAD switch is applied to microphone electronics circuit right after the capsule
which avoids to cut low and high frequencies destroying the signal quality,

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instead it just lovers the signal level allowing capsule to handle high SPL`s and
keeping the signal unaffected.
Important is that in most cases the microphone can handle high signal level but
the microphone preamplifiers can`t. That is why we care about your pre-
amplifier and made a BH1s and BH3 microphones with pad option.
BH series microphones share basically the same electronic parts. Every BH
series microphone except BH1s use component selection with tolerance 1.5 % in
differences between them (only 35% of 1000 parts can pass 1.5% tolerance test)
Components selected for BH1s have tolerance 0.4 % and are custom-made from
those 1.5% parts therefore we are giving lifetime warranty for all BH1s
microphones.
Electronic circuit design and component selection for every JZ Microphones
product is done according to the capsule properties and its special needs to
grant the best possible performance and extremely low self noise before any
gear in the recording ch

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Technical Specifications
BH1S
BH2
› Transducer Type electrostatic
pressure gradient› Operating principle
› Polar Patterns Cardioid / Omni / Figure of 8
2 x 27 mm
› Diaphragm’s active diameter
20 Hz - 20 kHz
› Frequency Response
-10 / -20 dB
› Pad Switch
18 mV/Pa
› Sensitivity at 1 kHz
50Ω
› Output Impedance
>250Ω
› Rate Load Impedance
134.5 dB SPL (2.5kΩ, 0.5% THD)
› Maximum SPL
86.5 dB-A
› S/N Ratio
7.5 dB-A
› Noise Level
127 dB
› Dynamic Range
+ 48V DC Phantom Power
› Power Requirement
590 g› Weight
190mm x 48mm x 22mm
› Dimensions
3-pin XLR male
› Output connector
1.5 mA
› Current consumption
› Transducer Type electrostatic
pressure gradient› Operating principle
› Polar Patterns Cardioid
27 mm
› Diaphragm’s active diameter
20 Hz - 20 kHz
› Frequency Response
21 mV/Pa
› Sensitivity at 1 kHz
50Ω
› Output Impedance
>100Ω
› Rate Load Impedance
134.5 dB SPL (2.5kΩ, 0.5% THD)
› Maximum SPL
87.5 dB-A
› S/N Ratio
6.5 dB-A
› Noise Level
128dB
› Dynamic Range
+ 48V DC Phantom Power
› Power Requirement
590 g› Weight
190mm x 48mm x 22mm
› Dimensions
1.5 mA
› Current consumption
3-pin XLR male
› Output connector

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BH1S
BH2
Frequency response graphs