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JK Audio ComPack Universal Telephone Audio Interface

BH #JKCOMP • MFR #COMP
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JK Audio ComPack Universal Telephone Audio Interface
Key Features
  • HD Voice Compatible
  • Use with Analog/Digital PBX/VoIP Phones
  • Four-Conductor 3.5mm Headset Interface
  • Headphone/Mic/Line Input Level Controls
The JK ComPack Universal Telephone Audio Interface bridges the gap between cell phones, analog phones, PBX systems, and professional audio sources. The ComPack is designed for remote broadcasts, IFB feeds, or telephone interviews. The provided balanced XLR input accepts signals from line level sources and microphones. The 2.5mm jack connects the ComPack to any cell phone with an ear-piece port. Standard analog phones can connect via the RJ-11 phone jack. The ComPak also functions as a simple telecom interface for an existing belt-pack intercom system. This feature provides a full-duplex, always-on connection to any telephone network.
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JK Audio COMP Overview

The JK ComPack Universal Telephone Audio Interface bridges the gap between cell phones, analog phones, PBX systems, and professional audio sources. The ComPack is designed for remote broadcasts, IFB feeds, or telephone interviews. The provided balanced XLR input accepts signals from line level sources and microphones. The 2.5mm jack connects the ComPack to any cell phone with an ear-piece port. Standard analog phones can connect via the RJ-11 phone jack. The ComPak also functions as a simple telecom interface for an existing belt-pack intercom system. This feature provides a full-duplex, always-on connection to any telephone network.

Telephone / Audio Interface
The ComPack is a complete interface between audio sources and analog phones and cell phones. It is designed for telephone interviews, broadcast, IFB, and more.
Cell and Analog Phone Interface
It features a standard RJ-11 jack for interfacing with analog phones, as well as a 2.5mm cell phone headset jack.
Mic & Line Level Input
The balanced XLR input accepts either microphone or line level signal. A Mic/Line switch is provided.
Telecom Interface Feature
As a bonus feature, an XLR intercom link is provided. This allows the ComPack to be used as a simple telecom interface for belt pack intercom systems.
Extended Battery Life
The ComPack is supplied with an AC power supply and will operate for up to 20 hours on a single 9 volt battery.
UPC: 814170010048

JK Audio COMP Specs

Input
Female XLR input (mic/line switchable)
3.5mm Line input
Output
Male XLR output
1/4” TRS output
Handset
1/4" Phone output
Phone Line
RJ11C
Impedance
Inputs
XLR: 1 kOhms, -10 mV RMS (-35 dBm nom) mic, +5 dBm line
3.5 mm Mini: 20k Ohms, -10 dBm RMS

Outputs
XLR: 600 ohms balanced
1/4” TRS Connector: intercom mode - 3-Pin bidirectional unbalanced
Headphone: 8 Ohms, 500 MW
Power Requirements
Operates for approximately 20 hours on one 9 V battery
Dimensions
8.0 x 3.0 x 2.2" (20.3 x 7.6 x 5.6 cm)
Packaging Info
Package Weight
2.55 lb
Box Dimensions (LxWxH)
10.5 x 7.2 x 3"

JK Audio COMP Reviews

Excellent for Comm Tie In

By Frank
Rated 5 out of 5
Date: 2023-12-06

We use these to create a tie into our ClearCom system from crew members outside the venue who need to be on comm with us for virtual events. One of these and an a tablet with a headphone jack - using any voice collaboration tool (Zoom, Teams, WebEx, etc) and you can set up a voice bridge for many tied into your Comm system. Works like a charm - with very good quality.

I would buy this product again and again

By Anonymous
Rated 5 out of 5
Date: 2010-11-09

A ALL IN ONE BOX

See any errors on this page?

question

Does it accept an rj45 port and do you have to contact the I.T. department to allow the device on their network?
Asked by: Jeffrey S.
The Compak does not have an RJ-45 but if you have a network phone system, keep the base of phone connected into network via the RJ-45 jack. Replace the handset from said phone with the JK Audio Compak. The Compak will now act as a handset and will require no special access because the base station phone is already connected into the network.
Answered by: Andrea O.
Date published: 2018-08-27

question

Looking to use interface for phone interviews for radio broadcast and recording. I notice the XLR port is not standard...will this call for an adapter or different cable?
Asked by: Anonymous
Mine came with xlr connectors. I dont believe I ordered anything special.
Answered by: Henry D.
Date published: 2025-10-22
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