JK Audio RemoteAmp Two User manual

RemoteAmp Two
Stereo Headphone Amplifier
JK Audio
User Guide

2
JK Audio combines professional audio electron-
ics in a rugged new belt pack design.
RemoteAmp Two provides a listen only connec-
tion for mono IFB or for listening to full band-
width stereo music. Separate volume controls
for the XLR and 3.5 mm line input jacks allow a
simple mix of mono and stereo sources. The
XLR line level input accepts either a balanced
mono signal or a party line intercom feed
(listen-only). The 1/2 watt, 1/4” stereo head-
phone jack will cut through any crowd noise. Or
connect an IFB earpiece to the 3.5 mm stereo
earpiece jack.
Description

3
Safety Precautions
RemoteAmp Two contains a
headphone amplifier that is more
powerful than a consumer prod-
uct. JK Audio products are de-
signed for the broadcast industry.
The broadcast professional must be able to
hear headphone signals over the ambient
noise level. From the cheering crowd at a foot-
ball game to trackside at a car race, the pro-
gram material or cues must be heard at high
volumes without distortion.
Road safety
Never use headphones while driving or cycling,
etc. It can be dangerous to turn up the volume
even while walking. Doing so may hinder your
hearing and can be hazardous on the roadways
or at pedestrian crossings.

4
Features
1 2 3
4

5
Features
1. This control will adjust the level of audio
from the XLR Line In jack.
2. This control will adjust the level of audio
from the 3.5 mm Stereo Line In jack.
3. This red LED indicates when the power is
turned on.
4. Press this Power button in to activate the
unit. Press again to turn the unit off.

6
Connection
1. Connect your headphones to this 1/4” jack.
The 1/2 watt stereo headphone output
gives you a mix of the XLR line input and
the 3.5 mm Stereo Line In.
2. The unbalanced 3.5 mm stereo Earpiece
output jack provides a mix of the XLR Line
input and the 3.5 mm Stereo Line In.
3. Connect the output of your other audio
equipment to this unbalanced stereo
3.5mm Line In jack.
4. Connect the output of your audio console to
the XLR Line In jack. This input is line level
only and is not suitable for a microphone.
You can use both the balanced XLR and
unbalanced 3.5 mm inputs simultaneously.
The Stereo Line In allows recordings to be
mixed in with the audio from your console.

7
Connection
1 2 3 4

8
FAQs
?Can I connect a microphone to the XLR
input jack?
!No, this input is line level only. You need to
connect your mic to a mixer or pre amp
first.
?Can I mix sound clips from my personal
audio player with the audio from my
mixing console?
!Yes, you can use both the balanced XLR
and unbalanced 3.5 mm inputs simultane-
ously. The Stereo Line In allows music or
other recordings to be mixed in with the au-
dio from your console.
?Can I connect this to my intercom unit?
!Yes, this headphone amplifier works well
when connected to a ClearCom, RTS or
Telex 3-pin XLR party line intercom link so
you can monitor the feed, even while listen-
ing to the 3.5 mm stereo input.

9
FAQs
?How long will the battery last?
!Based on our tests with the RemoteAmp
Two, a standard alkaline battery should
last for about 20 hours under normal use.
Lithium batteries can significantly increase
the battery life, but at a higher cost. As an
indicator of low battery, the red Power LED
will grow dim and then extinguish a short
while before the battery is completely ex-
hausted and the unit shuts down.

10
Block Diagram

11
Specifications
Input:
Female XLR: Line level, balanced
0 dBu nom
20 k ohms impedance
3.5 mm Line In: Stereo line level, unbalanced
-10 dBu nom
20 k ohms impedance
Outputs:
1/4” Headphone: Stereo, 1/2 watt per channel
8 ohms impedance
3.5 mm Earpiece: Stereo, 40 mW
100 ohms impedance
Frequency Response: 20 Hz - 20 kHz
Size: 4.7” x 3.75” x 1.65”
(12 x 9.5 x 4.2 cm)
Weight: 10 ounces (275 grams)
Note: While RemoteAmp Two was designed to be very
rugged and durable, it is not waterproof and care should
be taken to keep the unit dry.

The model RemoteAmp Two is covered by a 2
year warranty to be free from defective
workmanship and materials. In the event that
the RemoteAmp Two needs repair, you must
call us to get an authorization, and then
carefully pack and ship it to us. You will pay for
shipping to us and we will pay for return back
to you, UPS ground. No free repairs will be
made if the defect was caused by misuse,
weather conditions, or other cause, except for
defective workmanship or materials.
THERE ARE NO EXPRESSED OR IMPLIED
WARRANTIES WHICH EXTEND BEYOND
THE WARRANTY HERE MADE.
07/08
JK Audio, Inc. 1311 E 6th Street, Sandwich, IL 60548 USA
Voice: [phone] Toll Free: 800-JK-Audio
Fax: [phone]
[email protected] www.jkaudio.com
Copyright ©2008 JK Audio, Inc. All rights reserved.
Warranty