RemoteMix x4
4 Channel Field Mixer
User Guide
™
JK Audio
Welcome
Thank You
Thank you for purchasing a JK Audio RemoteMix x4 Field Mixer. Please read this
guide for instructions on setting up and using your new product.
Getting Assistance
If you have technical or application questions:
In the US & Canada, call us toll free at: 800-552-8346
All other countries dial: 815-786-2929 (M-F 8:30-5:00pm Central Time Zone)
E-mail us at: support@jkaudio.com
Or, check out our FAQ section for answers to common questions.
Limited Warranty
The RemoteMix x4 is covered by a 2 year warranty to be free from defective
workmanship and materials. To obtain service, contact JK Audio by phone or
e-mail for return authorization. Once authorized, you will carefully pack and ship
the faulty product and all accessories to us. You will pay for shipping to us and
we will pay for return back to you.
This warranty does not cover damages due to accident, weather, re, ood,
earthquake, misuse, unauthorized repairs or modications, or damages occurred
in shipping, only defective workmanship or materials.
There are no expressed or implied warranties which extend beyond the
warranty here made.
ii
RemoteMix x4™ Field Mixer
Contents
Overview 1
Getting to know your RemoteMix x4™
2 Controls & Indicators
4 Inputs & Outputs
FAQs 6
Technical Information 8
2
Contents
iii
Features
Four Low Noise, High Headroom XLR
Mic Jacks
Mic/Line Switches on Channels 3 & 4
Individually switchable
48v Phantom Power
120 Hz Low Cut Filter
Master XLR Output 20 Hz – 20 kHz
Four ¼” Headphone Jacks with
Individual Source Selector and
Level Controls
In the Box
Universal Power supply with
detachable cord
¼” Headphone Cue Input
Phone Headset Interface with 3.5 mm
TRRS Plug
3.5 mm Send and Receive Jacks
LED VU Meter
Hot-Swappable Dual 9-Volt Batteries
100-240 VAC External AC
Power Supply
3.5 mm 4-conductor Wireless
Interface Cable
iv
RemoteMix x4™ Field Mixer
Overview
Introducing the RemoteMix x4™
RMx4™ combines a four-channel eld mixer with a four-channel headphone
amplier. After all, what good is a eld mixer if you do not have a exible
monitoring capability for the whole crew?
Great Sound – Four low-noise, high-headroom, active-balanced mic inputs
feature extremely high common mode rejection for outstanding cable noise
immunity. High-Pass lter removes room rumble and mic handling noise. Direct
drive DC coupled XLR output for improved output cable noise immunity. A soft
limiter prevents over driving the full-duplex headset interface, while the master
XLR and 3.5 mm outputs are pre-limiter (full range).
Convenience - 3.5 mm send and receive jacks for recording or playing back of
recorded material. Separate headphone level and source selection controls for
each headphone output. Monitor just the clean mixer output, or the Cue input
plus the mix.
Power Smart Design – Phantom power is not always needed, yet it can be a
real drain on batteries. The phantom power generator only runs if any of the
rear panel 48V switches are set to “ON” position. Low noise, low power ICs are
used throughout to preserve battery life. The 100-240 VAC desktop-style power
supply (included) overrides the battery power only when the supply is actually
providing power. If the power goes out, the batteries automatically cut in. Use
one battery or two. The RMx4 is equipped with separate battery compartments
for hot swapping batteries.
Radio/Podcast – RMx4 is designed for news, sports, and live remotes. Use it as
a front-end mixer for your POTS, ISDN, IP or smart phone codec. XLR out, ¼”
return to headphones.
TV – RMx4 is designed for ENG, Sports, and interviews, with four ¼” headphone
outputs. 3.5 mm TRRS provides 2-way IFB audio from your cell phone or
notebook.
AV/Conference – RMx4 is perfect for small press or hotel conferences.
Rugged design for eld use, runs > 10 hours on two hot-swappable 9-volt
batteries. RMx4 will also route audio through cell phones or notebooks with the
included 3.5 mm TRRS headset interface cable.
Overview
1
Getting to Know Your RemoteMix x4
21
3
4 76
5
Controls & Indicators
1. Mic Level Controls
Each of the four XLR inputs has a level control knob with a separate red
<Peak> LED to indicate clipping on each channel. If you see more than an
occasional ash of the <Peak> LED you should decrease the level for that
channel.
2. Master Level Control
The <Master> control knob will set the overall level of the sum of all the mic
and line inputs. The LED meter for the master audio level ranges from
-30 dB to +3 dB.
3. Headphone Controls
Each of the four headphone outputs has a separate level control and source
selector so each listener can adjust their audio level independently. Monitor
a mix of local mic and line inputs including the cue input or only the return
audio from the Cue Input / Wireless Phone Interface without the local mix.
4. Cue Control
The <Cue> input control adjusts the signal going to the headphones from
the 1/4” <Cue Input>. When using the 1/4” Cue Input Wireless Interface,
the individual headphone level control adjusts the overall level of your
headphones while the <Cue> input control adjusts the level of the person
on the other side of the call in all headphones. You should keep in mind
that your wireless telephone also has level control. If you are having level
problems that cannot be corrected with the controls on the RemoteMix x4,
try adjusting the level on the wireless telephone itself.
2
RemoteMix x4™ Field Mixer
Getting to Know Your RemoteMix x4
Controls & Indicators Cont’d
5. 120 Hz Low Cut Filter
Turn on the Low Cut / High Pass lter to remove room rumble and mic
handling noise.
6. LED VU Meter
Represents the signal level of all four channels being sent to the
<Master Output> and <Line Output>.
7. Power
This is the main power switch that turns the unit on. Whenever the power
is turned on, the red LED above this switch will be lit. The green <AC>
LED will be lit whenever a live AC power source is connected, even if the
main power switch is off.
RemoteMix x4 is powered by two 9 volt alkaline batteries located on
the side of the unit. The red <Power> LED on the front of the device will
gradually dim as the battery runs down, then extinguish about a half hour
before the unit shuts down.
These two batteries are in separate drawers and wired in parallel, you
can hot swap one battery at a time so you never lose power.
It is important to replace both at the same time with identical batteries.
If two fresh batteries are not available, it is better to run using only one
good battery. Since the battery xtures are wired in parallel, it does not
matter which one gets the single battery.
Controls & Indicators
3
Getting to Know Your RemoteMix x4
7 86
Inputs & Outputs
1. Mic Inputs 1 and 2
Balanced XLR jacks with low-noise pre-ampliers.
2. Mic Inputs 3 and 4
Balanced XLR jacks with low-noise pre-ampliers. A <Mic/Line> selector
switch adds a 40 dB pad for a line level balanced input.
124 35
3. Stereo 3.5 mm Line Level Input
The stereo 3.5 mm line level input can be used instead of or in addition to
the channel 4 XLR input. You can connect either a mono or stereo signal to
this mini jack. If you use a stereo input, both channels will immediately be
summed together. Then the audio from the mini jack and the XLR would be
added together and treated as one mono signal on channel 4
4. Stereo 3.5mm Line Level Output
Can be connected to your mini disk or other recording device. The
<Master Output> will be on the Left channel and the Return mix from the
<Cue input> on the Right channel.
5. The Master Output
A balanced XLR jack that contains the sum of all four input XLRs and the
3.5 mm input. This audio signal has a full 20 Hz to 20 kHz bandwidth.
4
RemoteMix x4™ Field Mixer
Getting to Know Your RemoteMix x4
Inputs & Outputs
6. Cue Input / Wireless Phone Interface
RemoteMix x4 comes equipped with a <Wireless Phone Interface> built
in to the 1/4” <Cue Input>. This 1/4” wireless interface accepts a specially
designed 1/4” to 3.5mm cable provided with the unit. This interface works
with any wireless phone or notebook that accepts standard third party
headsets and earpieces. Your product has been supplied with a 1/4” TRS to
3.5mm TRRS interface cable. While the majority of current wireless phones
use a 4 conductor, 3.5mm TRRS headset jack, some older phones use a
2.5mm TRS headset jack. If your phone uses this smaller 2.5mm headset
jack, you may contact our support department to request a compatible
interface cable.
When using the wireless interface, it is important to keep your wireless
telephone 12” - 24” away from the RemoteMix x4 and any microphone or
headphone cables. This will help prevent unwanted RF noise from entering
the unit.
7. Headphone Jacks
Headphone output is determined by the source selector switch next to the
Headphone Controls on the front.
8. Power Jack
RemoteMix x4 is battery powered but we also provide a high quality,
regulated AC to DC adapter to power RemoteMix x4 when AC power
is available. Simply plug it into the back of RemoteMix x4 and plug the
transformer into a wall outlet. This is a switching power supply so you can
connect to a 110 or 220 VAC power source. When the power connector is
inserted into the jack, the batteries are bypassed. The AC adapter does
not charge the batteries. If you lose power during your broadcast, the
RemoteMix 4 automatically reverts to battery power so your broadcast will
not be interrupted.
Make sure you use only the supplied AC power adapter with the
RemoteMix x4. Using any other adapter could damage the unit.
WARNING! It is strongly recommended that this product be connected
to an adequate surge protection device.
Inputs & Outputs
5
FAQs
1) How long will the batteries last in my RemoteMix x4?
There are many variables that affect battery life, such as the number of
headphones. All of our battery life tests included 4 headphones playing music
at average listening levels. These tests use standard alkaline batteries.
Lithium batteries can add 3 to 4 times the battery life, at 3 to 4 times the cost.
The following numbers are from lab tests and may not represent your usage:
10 hours using dynamic microphones.
2) Will any cellular telephone work with RemoteMix x4?
The wireless interface on the RemoteMix x4 works very well with most
cellular telephones. However, some wireless telephones generate excessive
RF noise which can be heard as a “chattering” or “motor boat” sound.
The noise from these particular telephones will be unacceptable for most
broadcast applications.
RemoteMix x4 is supplied with a 1/4” TRS to 3.5mm TRRS interface cable.
While the majority of current wireless phones use a 4 conductor, 3.5mm
TRRS headset jack, some older phones use a 2.5mm TRS headset jack.
If your phone uses this smaller 2.5mm headset jack, you may contact our
support department to request a compatible interface cable.
3) What kind of device can I connect to the Cue Input?
Setting the switch for the dual-purpose 1/4” input to Cue Input will provide a
standard line level input for connection to another audio device, such as a
portable radio. The audio signal will be sent to all of the headphone outputs.
This way, your announcers can listen for a cue from their radio station at the
end of a station break.
4) The cellular interface cable was left behind at our last event.
Can I get a replacement at our local audio supply store?
This is a custom made cable and is not wired the same as those that may
be available at your local electronics store. Please contact your JK Audio
dealer or our Customer Service department and ask for a CN113 replacement
cable. The CN113 has a 3.5 mm TRRS headset plug. Most newer phones,
especially those that include a mp3 player, have a 3.5mm TRRS headset jack
and therefore require the CN113 cable.
5) The output from Mics 3 & 4 are very low but the other mics
are ne.
Check the position of the <Mic/Line> switch near Mics 3 & 4. This input can
be switched to accept a line level signal from a mixer or other equipment.
6
RemoteMix x4™ Field Mixer
6) How can I tell how much battery life is remaining?
The red <Power> LED functions as a battery life gauge that will gradually dim
as the battery runs down. This red LED will go completely dark about a half
hour before the unit shuts down. Keep in mind that the VU meter, Bluetooth,
and clipping LEDs will remain bright until the unit stops functioning.
7) Does the AC power supply charge the batteries?
No. You may use rechargeable batteries, but you must remove and recharge
the batteries outside of the RemoteMix x4.
8) I have lost my power supply for my RemoteMix x4 unit. I
have a power supply that ts from a different product. Can I
use this instead?
No! Never use a power supply other than the one that was supplied by your
manufacturer. Power supplies are available in either AC or DC output with
many combinations of voltage and available current. Most consumer power
supplies are not regulated. This could invariably damage your equipment,
and also create a great deal of noise. Our products are designed for and
tested with their respective power supplies for optimum operation. If you
have lost your power supply, please contact your JK Audio dealer or our
Customer Service department and ask for a PS009 power supply for your
RemoteMix x4.
FAQs
FAQs
7
Technical Information
Simplified Block Diagram
February 9, 2015
Phantom
Block Diagram
Output
Master
LED
Meter
High
Pass
3.5 mm
Master
stereo
output
1
Headphone
Headphone2Headphone3Headphone
4
Cue Input
Wireless Phone/
Return
Headphone Cue
Headset
Emulator
Limiter
RemoteMix x4
XLR
Input
8
RemoteMix x4™ Field Mixer
Mic / Line
Phantom
1
XLR
2
Input
Phantom
XLR
3
Input
Phantom
Mic / Line
XLR
4
Input
3.5 mm line input
Technical Information
Specications
Specications
Input Impedance / Level
Female XLR (4) Mics:
Phantom Power: 48 VDC with 6.8k ohm supply resistance
1/8” (3.5mm) Stereo Line: 20k ohms / -10 dBm nom
Headphone Cue 1/4” Mono: 20k ohms / -10 dBu nom
Output
Balanced Male XLR:
1/8” (3.5mm) Stereo: 100 ohms, -10 dBu nom
Headphone 1/4” Stereo: 8 ohms / 1/3 watt per channel
Misc.
Power 100-240 VAC, 50-60Hz or Two 9 VDC batteries
Size 9.5” x 8” x 3” (24 x 20 x 8 cm)
Weight 3.6 lbs (1.6 kg)
2k ohms / -25 dBu nom
Channels 3 & 4 have a -40 dBu Mic/Line pad switch
Line Level: 50k ohms / +20 dBu max
50 ohms / +16 dBu max, 20 Hz - 20 kHz, +/- 1dB,
0.04% THD @ +16 dBu
Technical Information
9
FCC Registration
Declaration of Conformity
Manufacturer’s Name:
Manufacturer’s Address:
Declares that the product:
Product Name:
Model Numbers:
Conforms to the following Product Specications:
Safety:
ESD:
Emissions: EN 55022:1998
The product herewith complies with the requirements of the following Directives and carries the CE
marking accordingly:
The Technical File containing supporting documentation is maintained at:
JK Audio, Inc.
th
1311 E 6
Sandwich, Illinois 60548 USA
RemoteMix x4 Field Mixer
RemoteMix x4
AS/NZS 60950.1:2003
CAN/CSA-C22.2 No. 60950-01-03
UL Standard 60950-01 1st edition
EN 55024:1998; EN 61000-3-2; EN 61000-3-3
AS/NZS CISPR 22 (2002)
FCC Part 15, Subpart B
ICES-003
EN 300 328
FCC Part 15.247 FCC ID R47F2M03MLA
IC Radio Standards RSS-210 Annex 8
LVD 2006/95/EC (Safety)
R&TTE 1999/5/EC (Telecom)
EMC 89/336/EEC (EMC)
RoHS Directive 2002/95/EC
JK Audio, Inc (Corporate Headquarters)
Compliance Manager
1311 E 6th Street
Sandwich, Illinois 60548 USA
815-786-2929 phone
815-786-8502 fax
Street
10
RemoteMix x4™ Field Mixer
FCC Part 15 Compliance
FCC Registration
Your new JK Audio product has been registered with the Federal Communications
Commission (FCC). This product complies with the standards in Part 68 of the
FCC rules.
FCC Part 15 Subpart A Compliance
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his/her own
expense.
Changes or modications not expressly approved by JK Audio can void the user’s
authority to operate the equipment.
FCC Complaince Notice
11
RemoteMix x4™
Field Mixer
User Guide Version 6/10/15
JK Audio, Inc.
1311 E 6th St.
Sandwich, IL 60548
United States
Telephone: 815.786.2929
Toll Free: 1.800.jkaudio
Fax: 815.786.8502
www.jkaudio.com
© 2015 JK Audio, Inc. All rights reserved.
JK Audio
Loading...