Telos Hx1

Digital Hybrid - Analog In-Out


Product Highlights

  • Input/output via analog XLR
  • Input switchable between MIC or LINE levels
  • New EQ High and EQ Low display meters
  • Advanced hybrid algorithms
  • Digital Dynamic EQ and adjustable smart leveler keeps audio spectrally consistent from call to call
Rentex No. TELOSHX1 | Mfr No. TEL-200100242/HX1

The Telos Hx1 represents the highest state-of-the-art in hybrid performance, with Telos processing technologies that take the POTS hybrid to a new level of consistently superior performance, regardless of telephone line characteristics.

Inside the single-hybrid Hx1, you’ll find advanced hybrid technology with new features that significantly sweeten and control caller audio. It comes standard with Auto-Answer, caller disconnect detection, sophisticated new audio-leveling and anti-feedback routines for enhanced open-speaker applications, call screening and line-hold features, front-panel send and receive audio metering, plus much more.


  • Telos 3rd-generation Adaptive Digital Hybrid.
  • Telos Exclusive Feedback Reduction Functions.
  • Send-to-Caller Processing: High-pass Filter, Frequency Shifter, AGC/Limiter, Sample Rate Conversion (with AES option).
  • Receive-From-Caller Processing: High-pass “Hum” Filter, Smart AGC / Platform Leveler, Noise Gate, Telos DDEQ (Digital Dynamic Equalization) 3-band Adaptive Spectral Processor, Sample Rate Conversion (with AES option)


Analog Inputs

  • Send Analog Inputs: 1 for Hx1, 2 for Hx2 (one per hybrid)
  • Connector : XLR Female, Pin 2 High (Active Balanced with RF Protection)
  • Input Range: Selectable between MIC and LINE levels
  • Line Input Level: Adjustable from -10dBV to +8 dBu (nominal)
  • Analog Clip Point : +21 dBu
  • Impedance: Bridging, > 50 Ohms
  • Analog-to-Digital Converter Resolution: 24 bits


Analog Outputs

  • Receive Analog Outputs: 1 for Hx1, 2 for Hx2 (one per hybrid)
  • Connector: XLR Male, Pin 3 High (Active Balanced, RF suppressed
  • Output Level: Nominal +4 dBu, fixed
  • Impedance: < 50 Ohms
  • Digital-to-Analog Converter Resolution: 24 bits
  • Headroom Before Clipping: 20 dB headroom above 4 dBU nominal levels


AES3 Digital Inputs/Outputs (optional)
Plug-in module converts standard analog XLR inputs and outputs to AES3 (one input or output on left channel of AES stream)

  • Conforms to AES3 standard
  • Sample rates: 32kHz to 48kHz.
  • Rate conversion: Input and output, independently selectable
  • Output Clock: AES input or 48kHz internal.
  • Input Level: Nominal at -20 dBFs.
  • Output Level: Nominal at -20 dBFs


Audio Performance

  • Frequency Response: 200 to 3400 Hz, +/- 1 dB
  • THD+N: < 0.5% THD+N using 1 KHz sine wave
  • Dynamic Range: Analog in to Analog out, studio loop mode, 10Hz-20Khz. A-weighted: > 92 dB
  • SNR: Analog output, referred to -12dBm phone line signal (+4dBu studio out), 10Hz-20Khz a-weighted: > 72 dB
  • Trans-Hybrid Loss: Analog phone line with ducking, gate, AGC, EQ
  • all OFF relative to +4dBu input level: >55 dB


Analog Telephone Line Connectivity 

  • Universal interface for worldwide application. Programmable loop current, ring signaling, and flash time. Includes caller ID decoding using Bellcore 212 modem standard.


Power Supply 

  • Type: Internal auto-ranging, 90–265 VAC auto-switching, 50–60 Hz.
  • Power consumption: 100 Watts.

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