The AIRcorp Model 500PH Pro Announcer microphone processor was designed to fill the needs of the modern broadcast studio or remote. Model 500PH input levels can be remotely controlled to correct levels between announcers. When levels are correct the equalization can easily be established with no further adjustment required.
The unique compressor/expander combination of the Pro Announcer reduces room noise and equipment noise, while providing level control and increased loudness for the announcer.
More exclusive Pro Announcer features:
- Front panel selection of input level in four ranges, +4dB to -50dB. Remotely controllable.
- Three section variable boost and cut equalization designed for easy setup without increasing low frequency room rumble and system hiss.
- Symmetry correction (phase rotators) provides more talk power with less compression.
- Compressor/expander combination provides punch without noise rush-up.
- Dynamic Control Coupling eliminates "hollow room" flanging effect.
- "Popless" insert point for any effects device. May be operated while announcer speaks. Remotely controllable.
- Simultaneous mic level output and line level output to feed console and telephone hybrid.
- De-esser suppresses excessive sibilance without being noticeable on normal material. Remotely controllable.
- Servo-balanced outputs eliminate ground loops in any installation.
- Buffered headphone jack to permit setup without being on air.
- DB-25 connector extends all logic functions for user convenience.
- Internal 48 Vdc Phantom Supply.
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Input type Input connector Input impedence: With "phantom power" ON With "phantom power" OFF Input CMRR (50
Hz - 20 kHz) EIN @50 dB gain Input gain range Input adjustment range Maximum input level
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Balanced differential transformerless 3-pin female XLR 13.6 kOhm 20 kOhm > 40 dB -127 dB typ (150 Ohm
source) Nominally, +50 to -4 dB, selectable in four steps ± 10 dB from indicated input level selected
+26 dB (15.5 Vrms)
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Output type Output connectors Line output impedance Line maximum output level Microphone output impedance
Microphone output level Microphone output into 150 ohm Line output residual noise and hum Usable dynamic
range Quiescent distortion @ unity gain
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Servo-balanced transformerless line driver and resistive balanced attenuator microphone level output, 150
Ohm source Z 3-pin male XLR 100 Ohm balanced, 50 Ohm unbalanced +26 dBm (600) 150 Ohm ± 10% -50 dB
ref. 0 vu -30 dB Maximum -80dB typical ref. .775 Greater than 100dB .02% typical THD (1 kHz) .05% typical
SMPTE IMD
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Input type Input connector Input impedence Maximum input level Output type Output connector Output source
impedance Maximum output level
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Differential balanced (ground-sensing) op-amp ¼" tip/ring/sleeve jack 100 kOhm balanced, 50 kOhm
unbalanced +26 dB (15 Vrms) Servo-balanced transformerless line driver ¼" tip/ring/sleeve jack 100
Ohm balanced, 50 Ohm unbalanced +26 dBm (600)
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Processor type Compressor attack time Compressor ratio Compressor release time Compressor threshhold
Expander attack time Expander slope Expander release time De-esser sidechain breakpoint
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Feedforward compressor with interactive expander and sidechain equalized de-esser 10 ms typical,
program-dependent Nominally 4:1 20 dB/second typical, program-dependent Nominally, -10 vu Identical to
compressor 2:3 @ 30 dB Range or less 1:2 at Range settings greater than 30 dB Tracks compressor release time
Typically 2 kHz
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Equalizer type Range of boost or cut Low bandpass fc Mid bandpass fc High bandpass fc
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First-order variable boost and cut series bandpass sections with all-pass follower for reducing waveform
asymmetry ±20 dB typical Nominally 140 kHzz Nominally 2.5 kHzz Nominally 5.0 kzz
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Mains input Mains connector Power consumption High voltage breakdown rating Phantom (parallel) microphone
power supply output characteristics
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115/230 Vac 50/60 Hz ±10% IEC appliance input connector per IEC 320 15VA maximum Transformer wound on
VDE/IEC approved bobbin and certified @ 4 kv Nominally +48 Vdc @ 6 mAdc
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MECHANICAL
The Model 500PH is housed in a steel and aluminum1.75" x 16.5" enclosure. A rack mounting kit is included for
installation into standard 19" equipment racks.
NOTES
0 dB and 0 dB ref .775 Vrms refers to 0 Vu at 0.775 Volts rms
0 dBm referes to 0 Vu at a power level of 1 mW into 600 Ohm
Noise measurements are made using an rms-responding meter in a 20 kHz corrected noise bandwidth
Specifications are subject to change without notice
