Next-generation Noise Cancellation and adaptive modeling to room ambient noise condition
Increased resolution on Microphone Preamp stage 0-56 dB in 7 dB increments
Pre-AEC routing for Sound Reinforcement Applications and maximum of 4 millisecond processing delay
Management Improvements including: integrated Ethernet and USB connections, SNMP and HTML remote management agents, Event scheduler, Diagnostic console
Leveraging the rich functionality of the flagship Converge Pro 880, the new 840T includes a built-in telephone interface and power amplifier for standalone conferencing capabilities. It also links with other Converge Pro mixers for maximum flexibility and use in many applications.
With Converge Pro 840T, ClearOne delivers a comprehensive set of proven features along with the newest technologies. These combine to deliver the best-sounding audio conferencing experience possible including: Distributed Echo Cancellation®, Noise Cancellation, First Microphone Priority, and Adaptive Modeling. Converge Pro 840T is the successor to the industry leading XAP 400.
Next-generation Noise Cancellation and adaptive modeling to room ambient noise condition
Increased resolution on Microphone Preamp stage 0-56 dB in 7 dB increments
Pre-AEC routing for Sound Reinforcement Applications and maximum of 4 millisecond processing delay
Management Improvements including: integrated Ethernet and USB connections, SNMP and HTML remote management agents, Event scheduler, Diagnostic console
Simplified Configuration Software including: Drag & drop A/V and channel objects, selectable views—unit, matrix, channel
Expanded Serial Command List
Next-generation Distributed Echo Cancellation® on every mic input
First-mic priority delivers clear audio to the far end
20 Hz-20 kHz bandwidth for full-range audio response + ALC & AGC keep participants’ audio balanced and consistent
Scalable – link multiple Converge Pro units (880, 840T, 8I, TH20) for extensive microphone coverage and up to 16 phone lines
Enhanced expansion bus, featuring 12 mix-minus audio buses for routing between units
Eight mic gating groups (four internal & four global) allow separation of mics into individual mixer gating groups for greater configuration flexibility
32 presets can be executed on-the-fly without disturbing other ongoing preset operations
255 Macros for customized audio control/configuration with single command execution
Built-in telephone interface and power amplifier
Link with multiple Converge Pro TH20s for up to 16-line capability
Also link to Converge Pro 880 or 8i for additional inputs and outputs
Audio Conferencing System Type - Desktop
Warranty - Yes
Dante Enabled - Yes
Spec Sheet available - Yes
Audio Performance Conditions:
Unless otherwise specified, all measurements are performed with a 20 Hz to 22 kHz BW limit (no weighting)
Noise (EIN):
-126 dBu, 20 kHz BW, max gain, Rs=150 ohms
Auto Mixer Parameters:
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 Parameters:
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 K ohms
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 K ohms
Nominal Level: 0 dBu
Maximum Level: 20 dBu
Outputs 1-8:
Push-on mini-terminal block, balanced
Impedance: < 50 ohms
Nominal Level: 0 dBu
Maximum Level: 20 dBu
Amplifier Output:
Binding Post Connection
10 Watts @ 4 ohm Impedance
THD + Noise: < 0.5%
Telco Line Port:
RJ-11 POTS (plain old telephone
service) or analog PBX extension
A-lead supervision provided
Telco Set Port:
Pass-though RJ-11 analog jack
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
Ethernet:
Autoswitching with Quality of Connection (QoC)
10/100 Mbps Ethernet Network Port
10/100 Mbps Ethernet PC Port
RJ-45 Connectors
RS-232:
Serial Command Protocol Only (Console software not supported on RS- 232 port)
DB-9 female
9,600/19,200/38,400/57,600/115,200 baud rate; 8 bits, 1 stop bit, no parity
Hardware flow control on (default)/off
Control/Status:
DB-25 female A/B (2)
Inputs A/B: active low (pull to ground)
Outputs A/B: open collector, 40 VDC max, 40 mA each
+3.3 VDC pins (2) (300 mA overcurrent protected)
USB:
Version 2.0 compatible
Type: B-connector
Configuration & Admin Software:
Converge™ Console
Power Input Range:
Auto-Adjusting
100–240 VAC; 50/60 Hz
Dimensions (L x D x H):
17.25” x 10.25” x 1.75”
43.8 x 26 x 4.5 cm
Approvals:
See the Installation & Operation Manual for complete details AES48-2005: AES standard on interconnections, Grounding and EMC practices, Shields of connectors in audio equipment containing active circuitry self certified
Optional Accessories:
Converge Pro 880
Converge Pro 880T
Converge Pro 8i
Converge Pro TH20
Converge SR 1212
Tabletop Controller
Button Microphone – Omni-Directional
Button Microphone – Uni-Directional
Delta Microphone
Tabletop Microphone – Uni-Directional
JBL Wall-Mount Speakers
Part Number:
910-151-840 Converge Pro 840T – 4-channel AEC Microphone Mixer with built-in telephone hybrid amplifier
Converge Pro 880
- Professional Conferencing System - Complete, Digital Matrix Mixer Conferencing Solution with Rich Functionality and Legacy ClearOne Audio Performance
Converge Pro 880T
- Professional Conferencing System - Complete, Digital Matrix Mixer Conferencing Solution with Built-in Telephone Interface and Speaker Amplifier
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