Telos Hx-1 Digital Telephone Hybrid

POTS phones never sounded so good!

In the mid-1980s, Telos pioneered the very first digital adaptivetelephone hybrid. Since then, our POTS phone hybrids haveearned a worldwide reputation for extracting clean, clear calleraudio from even the most difficult calls. We’ve pioneered plenty of improvements to POTS hybrid technologyin the past 20 years, and the Telos Hx1 and Hx2 representthe highest state-of-the-art in hybrid performance. Advancesin DSP have been pretty great as well. We’ve used every bit ofknowledge gained to make Hx1 and Hx2 the best, most advancedPOTS hybrids we’ve ever made, without much doubt. Inside the single-hybrid Hx1 and dual-hybrid Hx2, you’ll find Telosprocessing technologies that take the POTS hybrid to a new levelof consistently superior performance, regardless of telephone linecharacteristics. This advanced hybrid technology brings newstandard features that sweeten and control caller audio betterthan ever beforefeatures you won’t find in other POTS hybrids.

Hx1 and Hx2 have Auto-Answer, caller disconnect detection,sophisticated new audio-leveling and anti-feedback routinesfor enhanced open-speaker applications, call screening and lineholdfeatures, and front-panel send and receive audio metering- plus much, much more.Audio processing tools include a new symmetrical wide-rangeAGC and noise gate by Omnia, with adjustable gain settings to helpkeep caller audio smooth and consistent from call to call. Studioadaptation and a subtle pitch-shifter help prevent feedback inopen-speaker situations. Adjustable caller override improvesperformance even further, and allows you to individualize thedegree to which the announcer ducks the caller audio.

Finally, our famous Digital Dynamic EQ, coupled with an adjustable smartleveler, keeps audio spectrally consistent from call to call.
On the front panel, you’ll find EQ Meters for each hybrid, to tell youexactly how much DDEQ is being applied. Next to those, separateSend and Receive level meters monitor each hybrid. There’s alsoan animated line status display that visually indicates when a lineis ringing in, on air, on hold or available. A complement of Take,Hold and Drop buttons complete the front-panel control set. Around back, you’ll find a switchable mic/line input, balancedanalog receive-out output, RJ ports for telco input and phoneset,input level adjustment, and a DB9 remote control connectorwith GPIO closures for hybrid control and status indicator lamps.Need digital I/O? No problem – Hx comes in an AES/EBU versionwith built-in sample-rate converter.

Features

• Our best, most advanced hybrid algorithms.
• New symmetrical wide-range AGC and noise gate by Omnia, with adjustable gain settings
• Studio adaptation and pitch shifter help prevent feedback in situations where open speakers are required.
• Adjustable caller override improves performance and allows you to individualize the degree to which the announcer ducks the caller audio.
• DDEQ-Digital dynamic EQ keeps audio spectrally consistent from call to call.
• New EQ High and EQ Low display meters for each hybrid.
• Separate Send level and Receive level meters for each hybrid.
• Status Symbols make life easier for producers and talent with their animated high-contrast icon display of line status.
• Place caller on-hold via front panel button.
• Auto-Answer with selectable ring count.
• Worldwide disconnect signal detection. (loop drop, dial tone, or reorder tone)
• Input/output via analog XLR. (Optional AES3 I/O module)
• Input switchable between MIC or LINE levels.

Input Range:Select between MIC and LINE levels
Input Level:Adjustable from -10 to 4 dBu (nominal)Impedance:Bridging, > 50K OhmsAnalog Clip Point: 21 dBuAnalog-to-Digital Converter

Resolution: 20 bitsOutput Level:Nominal at 4 dBuImpedance:<50 ohmsDigital-to-Analog Converter Resolution:24 bitsHeadroom Before Clipping:20 dB headroom from 4dBU nominal levelsAES Digital Input / Output (Optional):Plug-in module converts the XLR inputs and outputs to AES3.Rate Conversion:Sample Rate Converters on all inputs and outputs. Inputscan accept 32, 44.1, and 48kHz rates. Clock for outputs may be sourced from the AES inputs or internallygenerated 48 KHz.Input Level:Nominal at -20 dBFsOutput Level:Nominal at -20 dBFsFrequency Response:200 to 3400 Hz, /- 1 dBTHD N/Input:< 0.5% THD N using 1 KHz sinewaveSignal to Noise:>90 dBGeneral purpose Input/Output:Single 9 pin D-Sub connector with 2 status outputs (Ringing and ON-AIR) and 2 control inputs (ON and OFF) per hybridTrans-hybrid Loss:> 55 dB