ClearOne Converge Pro - Manual (Page 352)

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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: < 10 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: < 10 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