ClearOne comm CONVERGE SR 1212 - Manual (Page 299)

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CONVERGE PRO 840T
Audio Performance
Conditions: unless otherwise specified, all •
measurements are performed with a 20 hz to 22 khz
BW limit (no weighting)
Frequency response: 20 hz to 22 khz ±1dB
•
noise (eIn): -126 dBu, 20 khz BW, max gain, •
Rs=150 Ω •
thD+n: <0.02% •
Dynamic range: >100 dB (non a-weighted) •
Crosstalk <-91 dB re 20 dBu @ 20 khz channel to •
channel
Auto mixer Features
number of open microphones (nom) •
pa adaptive mode •
First mic priority mode •
last mic mode •
maximum # of mics mode •
ambient level •
gate threshold adjust •
off attenuation adjust •
hold time •
Decay rate •
matrix mixing Features
29x30 matrix •
8 analog in/out •
1 speaker out (amplified) •
12 expansion bus in/out •
4 assignable processing blocks in/out •
4 assignable fader blocks in/out •
1 telco in/out •
Assignable Processing Blocks
Filters •
all pass »
low pass »
high pass »
low shelving »
high shelving »
parametric eq »
notch »
CD horn »
Crossovers •
Bessel »
Butterworth »
linkwitz-riley »
Compressor •
Delay; adjustable up to 250 ms •
Assignable Fader Blocks
gain/mute •
microphone Input Configuration
Input gain adjust •
mic or line level •
phantom power on/off •
echo Cancellation on/off •
noise Cancellation on/off •
Filters •
all pass »
low pass »
high pass »
notch »
peq »
mute on/off •
Chairman override on/off •
agC on/off •
automatic level Control on/off •
auto gate/manual gate •
adaptive ambient on/off •
pre aeC channel •
mic/Line Inputs 1-4
push-on mini-terminal block, balanced, bridging •
Impedance: < 5 KΩ •
nominal level: adjustable -56 dBu to 0 dBu (7 dB step •
coarse gain adjustment)
maximum level: -65 dBu to +20 dBu
•
echo Cancellation: 130 ms tail time (works with 12 dB •
of room gain)
noise Cancellation: 6–15 dB attenuation
•
phantom power: 24 v, selectable •
Line Inputs 5-8
push-on mini-terminal block, balanced, bridging •
Impedance: < 5 KΩ •
nominal level: 0 dBu •
maximum level: 20 dBu •
Outputs 1-8
push-on mini-terminal block, balanced •
Impedance: < 50 Ω •
nominal level: 0 dBu •
maximum level: 20 dBu •
Amplifier Output
Binding post Connection •
10 Watts @ 4 Ω Impedance •
thD + noise: < 0.5% •
Telco Line
rJ-11 •
pots (plain old telephone service) or analog extension •
from a pBx
a-lead supervision provided
•
Telco Set
rJ-11 •
pots (plain old telephone service) or analog extension •
from a pBx
a-lead supervision provided
•
Telephone Audio Performance
Conditions: unless otherwise specified, all •
measurements are performed with transmit limiter and
receive alC disabled
Frequency response: 250hz to 3.3 khz ±1dB
•
thD+n: <0.3% re-max level 250 hz to 3.3 khz •
snr: > 62 dB re-max level •
Telco Line Echo Cancellation
tail time: 31 ms •
null: 55 dB nominal •
Telephone Noise Cancellation
noise Cancellation 6-15 dB attenuation •
Expansion Bus In/Out
proprietary network •
rJ-45 (2), 1.9 mbps •
Cat-5 twisted-pair cable, 200’ maximum cable length •