TH-03EX

It comes with 2 telephone lines, and either analog or AES/EBU digital inputs and outputs

The TH-03 has built-in signal level metering for each hybrid line

Feedback is automatically mitigated by the digital hybrid

Digital Hybrids with AEQ’s Frequency Extender

The TH-03 is an advanced digital hybrid that comes with 2 telephone lines, and either analog or AES/EBU digital inputs and outputs. The TH-03 has built-in signal level metering for each hybrid line. Feedback is automatically mitigated by the digital hybrid, and no adjustments or calibration required.

It includes a mix-minus bus for multiplex communication while on-air or on-hold in the studio: Pressing the MPX button automatically establishes a conference between the two telephone lines, so only a single audio feed to and from the hybrid to the mixing console is needed. 

Functional
Description

Front Panel

Local & remote control

Put the call on hold

Frequency extension

Puts the call on the air

MULTIPLEX, between the two lines

RING, incoming call indicator

Line input and output signal levels

Connectivity

Mains power connection

Power switch

GPIO for remote control

External telephone set connection

Program audio output, analogue or optionally digital

Telephone line connector

Digital input/output indicator (optional)

Audio input, analogue or optionally digital

Advanced digital hybrid that comes with 2 telephone lines

Technical Details

Audio Inputs and Outputs

AUDIO INPUTS:
– Analog: Electronically balanced.
– Input impedance: > 6 KΩ
– Nominal input level: 0 dBv.
– Digital: AES/EBU transformer balanced.
– Internal adjustment of audio gain.

AUDIO OUTPUTS:
– Analog: Electronically balanced.
– Nominal output level: 0 dBv.
– Digital: AES/EBU transformer balanced.
– Internal adjustment of audio gain.

Telephone Interface

– Input/Output: Transformer coupled.
– Impedance: 600 Ω
– Nominal input level: -10 dBm.
– Nominal output level: -6.5 dBm.
*In conference mode, telephone line output level (nominal line input level): -7.5 dBm.

Audio Bandwidth (Frequency Extender OFF)

– Telephone Line: 300 – 4,000 Hz +/- 1 dB.
– Audio Output: 300 – 4,000 Hz +/- 1 dB.

Audio Bandwidth (Frequency Extender ON)

– Telephone Line: 50 – 3,750 Hz +/- 1 dB.
– Audio Output: 50 – 3,750 Hz +/- 1 dB.
– Distortion: THD+N: 1 KHz at nominal I/O levels.
– Telephone Line: < 0.20%.
– Audio Output: < 0.15%.
– Absolute Noise: TX < -66 dBm. RX < – 68 dBm.
– Frequency Extender: TX = 250 Hz. RX = – 250 Hz.
– Cross-Talk: Lower than absolute noise.

Electronic echo suppression

– Line impedance: One and two lines: 600 Ω
– Signal source: One and two lines 1 KHz.
– Nominal input and output levels.
– Audio output level:
– One line: < -64 dBm typical.
– Two lines: < -54 dBm typical.

Power supply

– AC 90 a 250 V. 50-60 Hz. 35VA.

Dimensions

– 1 Standard 19” Rack Unit.
– Width: 482 mm. (19”).
– Height: 44,5 mm. (1.75”).
– Depth: 230mm. (9”).

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