1. Transmission frequency characteristics of the sound reinforcement system (system bandwidth) 2. Volume, reminder and site area of ​​the room 3. Loudness and signal to noise ratio of the audience to the district Four. Reverberation time of the room 5. The distance from the audience to the speaker 6. The ratio of direct sound to reverberation sound 7. The pointing characteristics of the speaker Eight. Using the number and layout of speakers IX. The speed of speech of the speaker X. Audience's ability to distinguish Secondary factors affecting professional audio engineering 1. The gender of the speaker Second, system distortion System balance state 4. Sound field balance 5. Sound focus and room resonance 6. The direction of the voice reaching the audience 7. Interfering with the direction of the sound source Eight. Speaker's microphone use technology IX. The relationship between the speaker's information and the following.
Introduction of Inverter Filter
Rated currents: 6 to 2000A
Stud or terminal
block optional (above 250A it is copper bar)
FT330/FT330T series
are general purpose filters, suitable for most inverter brands
Could be customized
according to the real interference of customer`s working field
Features of Inverter Output Filter
FT330 series is designed according to the
frequency characteristics of interference generated by inverter when it works towards power grid or other
digital equipment.
Three-stage
filtering design, high impedance at broad frequency range due to special
magnetic materials
adopted.
Assure the smooth
operation of other electronic devices in the vicinity, solve the interference
problems of inverter;
FT330T series is specially
designed according to the frequency characteristics of interference generated
by inverter output when it
works towards load;
Effectively solve
abnormal conditions such as load heating and howling that are easy to occur
during long-distance transmission of frequency inverters, and better effect can be achieved with reactors;
Effectively control
the common mode interference along the cable to protect load and increase its
service life;
Touch-safe terminal
block versions are available to meet the high safety requirement of certain
special applications;
Copper bar terminals
applied for versions above 250A to keep pace with international standard, easy
and safe connection;
Optional 520VAC/690VAC
(and above) high voltage versions.
Inverter Filter Inverter Filter,Inverter Output Filter,Inverter RFI Filter,Power Inverter Noise Filter Jinan Filtemc Electronic Equipment Co., Ltd. , https://www.chinaemifilter.com
Factors affecting the intelligibility of the sound system
The main factors affecting professional audio engineering: