innkeeper 1rx

Digital Hybrid
JK Audio innkeeper 1rx Front

A Hybrid Jam-Packed with Features.

The innkeeper 1rx 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 1rx perfect for radio or television talk shows, teleconferencing, or auto-answer IFB feeds. The main function of any hybrid is to bring in the caller’s voice from the phone line, as clear and clean as possible. In the real world, when you send your voice down the telephone line it has a tendency to bleed over into the caller’s audio. The hybrid must adapt to the phone line in order to properly separate transmit and receive audio. 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.

Learn More Details Specs

Product Details

Features 1rx i2 i4
Excellent Separation of Caller and Talent Voice
16-bit DSP technology
Auto-Answer (Switchable On/Off)
Proprietary Auto Null Algorithm (50 dB null)
AGC, Ducking, Presence
1 kHz Tone Generator
Memory Speed Dial
Alpha-Numeric Keypad
with Backlit LCD Display
Send XLR Line Input 1 2 4
Mic/Line Switch
Master Send XLR
Caller XLR Line Output 1 2 4
Mix Out XLR Line Output
Front Panel 1/4" Headphone Jack
Monitor Handset Jacks 2 4
Remote Control via Screw Terminals or RS-232
RIU-IP Remote IP Interface
Monitor Speaker Terminals
Send and Caller Signal Level LEDs
Send and Caller Volume Controls
Made in America
Approved for Sale in Europe and Australia
JK Audio Guest Module 1

Guest Module 1
Remote Keypad

Control Broadcast Host with a remote keypad instead of an auxiliary phone. Guest Module 1 is sold separately. Learn More


Remote IP Interface

Control innkeeper 1rx, innkeeper 2 or innkeeper 4 remotely from a web browser. RIU-IP is sold separately. Learn More

Automatic Gain Control (AGC)

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 to get a richer sound from the caller’s voice. This digital filter brings back some of the low-end lost in transmission.

Talk Show

For Talk Show applications combine innkeeper 1x/1rx with the Concierge 2x6 Switch Core and a Guest Module Control Surface.

JK Audio innkeeper 1rx Back


Send Balanced Female XLR
Impedance 1k ohms
Level 15 mV RMS (-34 dBu nom)
Mic/Line Pad Switch +6 dBu max
Caller Out Male XLR
Impedance 200 ohms
Level 500 mV RMS (-4 dBu nom, +14 dBu max)
Stereo Headphone 1/8" (3.5mm)
Impedance 8 ohms
Level 250 mW per channel
Speaker Screw Terminals
Impedance 8 ohms
Level 1 watt
Phone Line Connector RJ11C
Aux Phone Connector RJ11C
Ringer 0.8B REN
Isolation 1500 VAC
Frequency Response Telephone Side 200 Hz-3600 Hz
Recommended Operating Temperature -20°C to +40°C
Power 120-240 VAC Power Supply (Internal)
Size 1.75” x 7.3” x 19” (4.5 x 18.6 x 48.3 cm)
Weight 5.7 lbs (2.6 kg)