ClearOne comm SR 1212, PRO TH20, PRO 8I operation manual Converge Pro 840T, 294

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

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