Manual

BH Series Microphones Owners Manual

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 speciﬁ cations 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, 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 preampliﬁ ers can`t. That is why we care about your pre-

ampliﬁ er 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 chain.