JK Audio have a range of professional digital hybrid's to suit your application and budget.

A digital hybrid connects audio signals to a standard analog telephone line without the variations in quality found with analog hybrids. The main function of a hybrid is to bring in the caller's voice, as clear and clean as possible. In the real world, when you send your voice down the telephone line it will bleed over into the caller's audio. The hybrid must adapt to the phone line in order to properly separate transmit and receive audio.

JK Audio Product Applications

JK RemoteMix4

RemoteMix 4 is a four channel field mixer and headphone amplifier.  More than just a field mixer, this is a communications interface.  RemoteMix 4 features a phone line hybrid and keypad, a PBX handset interface, and a cell phone interface. All this in a tough, portable unit that’s smaller than a lunch box. All-in-one is an understatement. These parts were designed to work together and save setup time in the field.  No need to send an engineer with patch cables. All the pieces work together in one reliable unit.

Radio - RemoteMix 4 was designed for live remotes. Use it as a phone line hybrid, calling into your studio talk show hybrid.  Use it as a front end mixer for your POTS, ISDN or IP codec. Use it with your laptop codec.

TV – RemoteMix 4 gives you the ultimate phone connectivity with four IFB feeds. Imagine being able to send and receive interview audio, and pull IFB out of any business phone system, even your cell phone.  More than a field mixer, this is a shoot saver.

Great Sound – Bass Boost adds some low end before sending the signal down the phone line.  A soft limiter prevents overdriving the phone line interfaces, while the mixer XLR output is pre-limiter (full range). Line level cue input to the headphones make RemoteMix 4 a perfect companion to your CODEC.

Bluetooth Wireless Technology - RemoteMix 4 will first attempt to connect in hands free mode to a cell phone. If this type of connection is not available, it will connect to any other product, such as a notebook or portable that allows a Bluetooth wireless connection. This wireless headphone mode offers a full audio bandwidth stereo connection.

Convenient 3.5 mm send and receive jacks for recording the show, or mixing in your MP3 player. Separate headphone level and source selection controls. Monitor just the clean mixer output, or the communication return plus the mix.

JK Innkeeper 1x Digital Hybrid

A number of new features have been added to the innkeeper 1x and 1rx digital hybrids:

1. New look, but the same common sense user interface.

2. Lower noise, better echo canceller performance.

3. RS-232 remote interface using simple ASCII protocol, cable included.

4. Now compatible with (optional) JK Audio model RIU-IP Remote Control, an IP

interface with a built in web server for remote control from your web browser.

5. FCC/UL/CE/RoHS marked for sales in Europe, C-tic / A-tic marked for Australia.

The innkeeper 1x gets audio in and out of analog telephone lines. Its excellent caller audio output does not exhibit the transmit/receive crosstalk common to analog hybrids. This makes innkeeper 1x perfect for radio or television talk shows, teleconferencing, or auto-answer IFB feeds.

We use a 16-bit DSP to monitor the phone line and audio signals continuously in order to deliver excellent separation. Our dual-convergence echo canceller algorithm can achieve excellent transhybrid loss, typically exceeding 50 dB, without any setup and without sending a burst of noise into the phone line.

From the front panel you can control on-hook/off-hook, and adjust headphone volume. Front panel LEDs display signal levels and option status. The Send and Caller Volume controls are hidden behind an access panel to discourage unauthorized "tweaking". Five feature switches are also hidden behind the access panel.

AGC (Automatic Gain Control) adjusts the caller volume to an average level. AGC will tame a loud caller, and boost a quiet caller or quiet long distance connection.

Caller Ducking drops the Caller output level by 9 dB whenever the host speaks. This keeps the host "in charge" of the show, automatically making sure the caller never overpowers the host by attempting to talk over the host's voice.

Press the "Presence" button and you'll get a richer sound from the caller's voice. This digital filter brings back some of the low-end lost in transmission.

The Test Tone generator sends a 1 kHz full level tone either down the phone line or out the Caller XLR jack. This tone represents the maximum level transmit into the phone line or out the XLR jacks. The Test Tone generator is not required for tuning the digital hybrid.

Auto-Answer simply answers on the first ring and disconnects at the end of the call. 

Brochure : http://www.jkaudio.com/assets/pdf/innkeeper_1x-1rx_datasheet.pdf

JK Innkeeper 2 Digital Hybrid

JK Audio RIU-IP

The RIU-IP is a remote control interface designed for the new innkeeper 1x, innkeeper 2, and innkeeper 4 digital hybrids. This unit contains a web server which allows the user to send and receive control data through their web browser. RIU-IP can be connected to the user's computer NIC card for direct control, to a switch or hub for network control, or to an ethernet port with internet access for control from anywhere in the world.

Remote Control Capabilities:

• On-Hook and Off-Hook
• Confirmation of Off-Hook on On-Hook transition per line.
• Place call on hold or release hold.
• Dial (number) (line).
• Set Auto-Answer and ring count.
• Start and stop Conference (innkeeper 2).
• Adjust transmit and receive level per line.
• Test tone start/stop per line.
• Address book upload/download.
• Master Send configuration.

Manual : http://www.jkaudio.com/assets/pdf/riu-ip_datasheet.pdf

JK PBXPort Digital Hybrid

PBXport is a professional digital hybrid capable of providing talk show quality caller audio from your PBX phone system. PBXport allows you to send mic or line level signals into your PBX telephone system while maintaining excellent separation between your voice and the caller. The balanced XLR output jack contains only the caller's voice allowing full duplex voice conferencing through the existing PBX phone system without fear of echo and feedback.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/PBXport-1006w.pdf

JK Broadcast Host digital audio Hybrid. 

Broadcast Host is a low cost portable stand alone digital telephone hybrid for radio broadcast talkback applications. This unit can be used connected to a recording device for journalist interview situations or integrated into a on-air console for radio talkback shows. The high speed 16 bit DSP enables excellent separation between announcer and caller with the caller only signal available for program mix in the console.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/Broadcast_Host-1006w.pdf    Set Up Guide : Pages 3-6

JK Guest Module 1

Guest Module 1 gives you remote access to the on-hook / off-hook and dial features of either the Broadcast Host or Innkeeper series digital hybrids.

This little time-saver gives you call control you simply can't get with an auxiliary telephone and a couple of switches. Connect Guest Module 1 using an 8 pin RJ45 modular cable. This cable provides remote power so there is no need for batteries or an external power pack. The Call button will flicker when a call comes in. Press this button to answer or place a call. The button will stay lit when a call is present. When you dial on-air, the tones go out on the line, and do not come back mixed with the dial tone or caller signal.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/Guest_Module1-0606w.pdf

JK Innkeeper PBX digital audio Hybrid

Innkeeper PBX digital telephone hybrid allows the extension handset of an analogue or digital PABX to be used as the interface between your caller and the broadcasting studio console. Excellent for dedicated news booths and journalist offices where PABX extensions are readily available.

The on board DSP constantly monitors send and receive signals to provide maximum separation and best available quality.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/innkeeper_PBX-1006w.pdf       Set Up Guide : Pages 3-6

JK Innkeeper 4 multi-line digital audio Hybrid

Innkeeper 4 provides four independent digital telephone hybrids in a 1RU of rack space making this unit ideal where multiple telephone lines need to be available simultaneously at the on air console. This allows the program presenter to have total control of all callers participating in the talkback session and new participants can be brought in and out as required.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/innkeeper_2-4%201006w.pdf

JK Auto Hybrid

The Auto hybrid is a full duplex low cost hybrid for portable and fixed bi-directional conversations. Auto hybrid suits OB, public address and IFB applications. Small and powerful with auto answer feature this unit can belt pack of be contained in the 4 unit 1RU panel for conservation of rack space.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/Auto_Hybrid-0606w.pdf

JK Celltap

Celltap allows you to connect the coms port of your mobile phone to a recording device. The headphone output allows you to monitor or connect a powered speaker for group or conference listening.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/CellTap-0606w.pdf

JK Compac

JK Compac is a versatile portable interface enabling access to PSTN, PABX and mobile phones for Bi-directional conversations. Should be in every OB kit forthose days when nothing goes right.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/ComPack-1006w.pdf

JK THAT2

THAT2 connects into the handset lead of any telephone and permits the sending or receiving of audio conversations. Ideal for monitoring or getting the highest quality audio down the telephone line.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/THAT-2-0606w.pdf

JK DAP2

DAP2 allows a connection between you OB mixer and a mobile phone. Can be used as a reporters mobile phone interface or as a emergency OB connection when all else fails. A good box to have in your pocket at weekends.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/DaptorTwo-0606w.pdf

JK DAP3

Daptor Three is a simple, professional audio interface using Bluetooth Wireless Technology. Like its predecessor Daptor Two, this new version allows balanced and unbalanced connections to your cell phone. While Daptor Two uses the 2.5mm headset jack, Daptor Three connects to your cell phone like any other Bluetooth Wireless Technology enabled headset. It will also connect to any other product, such as a laptop, that allows a wireless headset connection.

Daptor Three won the Radio World Cool Stuff and Radio Magazine Pick Hit awards at NAB2007. These will move quickly.

JK RAMP

RAMP is a battery operated one watt personal headphone amplifier with belt clip. The output level is separately adjustable to the on-off switch so battery conservation and level setting are not linked.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/RemoteAmp-0606w.pdf

JK PUREFORMER

Pureformer is a stereo isolation transformer for devices such as PC sound cards where input devices are unknown and may have residual DC voltages causing hum loops.

Manual : http://www.jkaudio.com/assets/pdf/user_guides/Pureformer-0606w.pdf