CONVERGE PRO 840T

CONVERGE PRO 840T

The successor to the industry-leading XAP 400. Leveraging the rich functionality, audio performance, and flexibility offered by the flagship Convergetm Pro 880, the new 840T includes a built-in telephone interface and power amplifier for standalone conferencing capabilities. It also provides expansion capability with other Converge Pro mixers for complex installations.

Description

Advanced Conferencing Feature Set
+ Next-generation Acoustical Echo Cancellation
> Improved duplex performance
> Push-to-talk microphone compatibility
+ Next-generation Noise Cancellation
> 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
> Maximum of 4 millisecond processing delay
+ Management Improvements
> Integrated Ethernet and USB connections
> SNMP and HTML remote management agents
> Event scheduler
> Diagnostic console
+ Simplified Configuration Software
> Drag & drop A/V and channel objects
> Selectable views—unit, matrix, channel
+ Expanded Serial Command List

Superior Audio Performance
+ Next-generation Distributed Echo Cancellation® on every mic input
+ First-mic priority delivers clear audio to the far end
+ 20 Hz-22 kHz bandwidth for full-range audio response
+ ALC & AGC keep participants’ audio balanced and consistent

Configuration Flexibility
+ Scalable – link multiple Converge Pro units for extensive microphone coverage and up to 16
phone lines
+ Enhanced expansion bus, featuring 18 mix-minus audio buses for routing between
units
+ Ten mic gating groups (four internal & six global) allow separation of mics into
individual mixer gating groups for greater configuration flexibility
+ 255 Macros for customized audio control/configuration with single command
execution

Conferencing Capability
+ 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

Specification
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 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

29×30 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 channe
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: > 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: 250 Hz to 3.3 kHz ±1 dB
THD+N: <0.3%, re-max level 250 Hz to 3.3 kHz
SNR: >62 dB re max level
Telephone 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
Category 5 twisted-pair cable, 200’ maximum
cable length between any two Converge Pro
devices
Ethernet

Autoswitching with Quality of Connection (QoC)
10/100 Ethernet Network Port
10/100 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, no parity
Hardware flow control on (default)/off
USB

Version 2.0 Compatible
Type: B-connector
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 over-current
protected)
Configuration & Administration Software

Convergetm Console
Power Input Range

Power Input Auto-adjusting
100–240 VAC; 50/60 HzRange
Power Consumption

30W Typical
Dimensions (L x D x H)

17.25” x 10.25” x 1.75”
43.8 x 26 x 4.5 cm
Weight

7.5 lbs/3.3375 kg unit weight
12 lbs/5.4kg shipping weight
Operating Temperature

14° F/-10° C to 122° F/50° C ambient room
temperature
Approvals & Compliance

AES48-2005: AES standard on interconnections
— Grounding and EMC practices — Shields
of connectors in audio equipment containing
active circuitry (self certified)
U.S.A. & Canada
CSA safety listed
EU Countries
RoHS compliant
WEEE compliant
See product manual for additional details
Optional Accessories

Converge Pro 880
Converge Pro 880T
Converge Pro 8i
Converge SR 1212
Converge SR 1212A
Converge Pro 840T
Converge Pro TH20
Tabletop Controller

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