JK Audio RemoteMix C+ User Manual

RemoteMix C+

Portable Mixer for

Remote Telephone Broadcasts

User Guide

JK Audio

Introduction

RemoteMix C+ is a professional audio mixer and headphone
amplifier designed to interface with any standard analog
telephone line. This telephone hybrid operates on batteries
or AC power.

Simply plug your audio equipment into RemoteMix C+ and
connect to a phone line. You can now put on headphones,
plug in a microphone, and you are ready to broadcast the
game or talk up a taped interview. The RCA type jacks on
RemoteMix C+ are equivalent to the jacks found on most
home tape recorders, CD players, and receiver/amplifiers.
There are two balanced XLR microphone inputs and the first
one can be switched for mic or line level input. The balanced
line level XLR output jack provides a high quality connection
to mixers and professional tape gear. The adjustable hybrid
circuit provides control over the mix of transmit and receive
audio at the output jacks.

Cellular Telephones

Use our Daptor One to connect the standard 3-conductor,

2.5 mm micro-jack on your digital wireless telephone to the
RJ-11 phone jack on the RemoteMix C+. Then you will con­tinue to use your wireless phone to dial or answer the call,
but you will use the microphone and headphones plugged
into your RemoteMix C+ during the call.

RemoteMix C+ was also designed to work well with a data
interface (fax / modem adapter) connected to your older ana­log cellular telephone or bag phone. These are available
through your cellular dealer. These adapters turn your
cellular telephone into an RJ-11 equivalent jack which
replaces the wall jack in this picture.

2

Connection

Microphones
2 XLR jacks

Headphones or small
speaker, 2 jacks 1/4”
stereo or mono

to RJ-11
Analog wall jack

Tape recorder or audio
equipment input or
output, RCA or XLR

1. Connect your audio equipment, microphones and
headphones to the input and output jacks on the
RemoteMix C+.

2. Connect the jack marked "Phone Line" to any standard
analog telephone line or to the Fax/Modem adapter on a
cellular telephone.

3. Turn on the power switch, flip the "Phone Line" switch to
"Dial/Talk" and dial your call. You are now ready to
broadcast or record a telephone interview.

3

Operation

Send Side (To Phone Line)

There are separate volume controls for the two XLR
microphone inputs and the RCA line input (To Phone Line)
jack. You can use all three inputs at the same time. Mic 1

also has a Mic/Line
level selector switch
which lowers the gain
on the Mic 1 XLR
jack by 30 dB to
allow a balanced line
level input.

Receive Side (From Phone Line)
The receive side has separate controls for headphone output
level and line output level. The Line Out control adjusts the
signal going out the RCA and XLR jacks marked From
Phone Line. This is a mix of both sides of the telephone call.

Headphones

The built-in headphone amplifier is strong enough to power
two pair of headphones or a small desktop speaker. The left
and right channels contain the same mono signal, but are
powered by separate amplifier channels. These jacks will
drive either two 1/4” stereo plugs or two 1/4" mono plugs.

Handset Jack
The handset jack on the side
of RemoteMix C+ allows you
to plug in a telephone handset
and quickly set up a call before
you connect your microphones
and headphones. The handset
microphone volume is
adjusted using the Line In knob. The earpiece volume is
adjusted using the Headphone level knob. All telephone
handsets are different, so if yours is not compatible, try an
AT&T, Sony, or Radio Shack residential phone handset.

4