Red Sound MICRO AMP User manual

micro amp
OFF
ON
INPUT
www.redsound.com
POWER
Red
Sound
the colour of music
micro AMP
12dB
12dB
MIN
12dB
12dB
MAX
HIGH
LOW
LEVEL POWER
EQ
+
-
-
+
+
-
Issue 2

The amplifier section of the MICRO AMP is capable of delivering very
high volume levels to the connected headphones which, if sustained
over long periods, could cause damage to your hearing. Also, the
headphones may be damaged if high output
levels are maintained.
Always use the lowest, most comfortable volume level setting to suit
the particular environment. We cannot be responsible for the
improper use of this product!
drivers in the connected
WARNING!
AVOID USING THIS PRODUCT AT HIGH VOLUME LEVEL
SETTINGS FOR EXTENDED PERIODS OF TIME!
INTRODUCTION
Thank you for buying the RED Sound MICRO AMP headphone amplifier.
Please read the following sections of this manual carefully to understand the operation of
your new RED Sound
The fully portable poor headphone monitoring
performance so common in today’s mixing desks and audio equipment. This pocket - sized,
high quality audio amplifier with built-in 2 band EQ will make all the difference when it comes
to successful monitoring in the club, studio or home environment.
With straight-forward connections and simple setup, a compact case and three mounting
options, the MICRO BPM will integrate perfectly into any setup.
fully
MICRO AMP.
MICRO AMP is the ideal solution for
IMPORTANT NOTICE - PLEASE READ
Always ensure the battery compartment screw is fully tightened.
Noise or hum may occur if this screw is loosened.
Explanation: The metal case of the MICRO AMP acts as shielding for
The top panel is connected
to the base panel by the main fixing screw which acts as the
grounding connection between the two panel sections.
the very high gain amplifier section within the product and effectively
stops any induced hum or noise pick-up.

OFF
ON
INPUT
www.redsound.com
POWER
Red
Sound
the colour of music
micro AMP
12dB
12dB
MIN
12dB
12dB
MAX
HIGH
LOW
LEVEL POWER
EQ
+
-
-
+
+
-
1
2
Use a suitable input cable [3.5mm jack] to connect
headphone monitor output on
your mixing desk/audio equipment.
Connect the output plug of the optional 17vDC
transformer to this socket.
AUDIO INPUT - Connector
POWER IN - Connector
this socket to the
The centre-click, High (6.5kHz) and Low (100Hz)
EQ controls can be used to cut or boost the audio
frequencies whenever adjustment is required.
This knob controls the output level to the
connected headphones.
Use this switch to turn the MICRO AMP’s power on
and off (always ensure the power is switched off
when the MICRO AMP is not in use to preserve
battery life).
Connect the plug from your headphones to this
6.3mm gold-plated output socket.
3
4
5
6
EQUALIZATION - Rotary controls
LEVEL - Rotary control
ON/OFF - Switch
HEADPHONE OUT - Connector
2
1
6
FRONT PANEL CONTROLS AND
CONNECTORS
Here’s a quick guide to the controls and connectors
on the MICRO AMP.
4
3
5
FRONT PANEL/CONNECTORS
1
PAGE

BATTERY#1
BATTERY#2
0002000
FITTING/REPLACING
THE 9V BATTERIES
To fit or replace the batteries (not
included) first ensure the on/off
switch is set to ‘off’ and then remove
the three front panel control knobs
by pulling them vertically away from
the unit (keep them in a safe place
for re-fitting).
Next, release the main rear panel
case screw by turning in the
direction indicated, as detailed in
diagram 2. Carefully lift away the top
cover and note the layout of the
circuit board / battery locations as
detailed in diagram 1.
If replacing, remove the old batteries
from their respective compartments
and disconnect the snap terminals
taking care not to damage any PCB
components.
Connect new batteries to the snap
terminals observing the correct
polarity and fit them into respective
battery compartments observing the
correct orientation as shown in
diagram 1 (Always use new, high
power Alkaline batteries to ensure
the best performance from your
MICRO AMP).
Carefully re-fit the top cover ensuring
the battery leads are clear of the
case and not trapped by any internal
components. Turn the rear panel
screw in a clock-wise direction until
fully tightened
Re-fit three control knobs by pushing
firmly into place on potentiometer
shafts. The MICRO AMP is now
ready for use.
(this ensures a good
earth contact between the two
case halves which eliminates any
hum or noise pick-up)
Diagram 1 Diagram 2
BATTERY INSERTION
2
PAGE

When you have chosen the best
mounting option for your setup, connect
the MICRO AMP into your system as
follows:
1. Connect a suitable input cable to the
3.5mm socket on the
marked ‘INPUT’.
2. Connect the other end of the cable to
the headphone monitor output on your
mixing desk. (Ensure that the headphone
level control on the mixing desk is turned
right down at this stage)
3. If you have purchased the optional
17vDC transformer, connect
Connect the 6.3mm plug from your
headphones to the MICRO AMP socket
marked on the front panel.
MICRO AMP rear
panel
the output
plug of the power adaptor to the MICRO
AMP’s power in socket on the rear panel.
4.
You can choose from three mounting options
included with the MICRO AMP.
1. - Stick one in each corner on
the underside panel for free mounting.
2. - Stick one
either side of the serial number label on the
underside panel. Locate a flat, clean surface
on your equipment/rig, peel-off film and press
firmly into place for a permanent mounting.
3.
- The MICRO AMP
can be conveniently located on either side of a
mixing desk for a semi-permanent mounting.
Rubber feet
Double sided adhesive pads
Brackets, for use with 19” rack mount
holes on mixing desks
CONNECTING THE
MICRO AMP TO YOUR
SYSTEM
MOUNTING THE MICRO AMP
HEADPHONES
INPUT CABLE TO OPTIONAL
AC ADAPTOR
19” RACK
Hole pitch
range =
Min 90mm
Max 240mm
Rotate the chrome brackets
to line-up with the 19”
rack mounting holes on
your mixing desk.
M3 SCREW
(LENGTH = 6mm MAX)
BRACKET
M6 SCREW
M6 NUT
DJ MIXING DESK PANEL
19” RACK MOUNT HOLE
HEADPHONE
OUTPUT
LEVEL
MIXING DESK
MOUNTING/CONNECTIONS
3
PAGE
OFF
ON
INPUT
www.redsound.com
POWER
Red
Sound
the colour of music
micro AMP
12dB
12dB
MIN
12dB
12dB
MAX
HIGH
LOW
LEVEL POWER
EQ
+
-
-
+
+
-

HEADPHONE AMPLIFIER
SPECIFICATION:
With the MICRO AMP connected to your system as detailed on page 3 and switched on, set
the MICRO AMP‘s ‘EQ’ controls to their centre (click) position and the ‘LEVEL’ control to
minimum. Now play an audio track on one of your CD/Vinyl decks and ensure that the
corresponding channel on the mixing desk is selected for monitoring. Set the monitor output
control ON YOUR MIXING DESK/AUDIO EQUIPMENT to approximately the mid position. To
hear the monitored audio on the connected headphones, slowly turn up the LEVEL control on
the MICRO AMP until a comfortable listening level is reached.
The High and Low EQ controls on the MICRO AMP can be used to tailor the monitored audio
sound to your individual requirements.
From the centre-click null position, turn this knob clockwise to boost the
LOW frequencies or anti-clockwise to cut them.
From the centre-click null position, turn this knob clockwise to boost the
HIGH frequencies or anti-clockwise to cut them.
Remember to switch off the MICRO AMP’s power when not in use to conserve
battery life. If the optional power supply is used, remove the batteries as a precaution against
long-term battery decay. The sound will become distorted when the batteries are run down.
LOW EQ - 100 Hz:
HIGH EQ - 6.5KHz:
NOTES:
Freq Response:
Input level:
Output level:
High EQ:
Low EQ:
Mounting kit:
Batteries:
Battery life:
Size:
Weight:
Power Supply:
Amplifier
Accessories (Included)
Power
Dimensions/Weight
Optional Accessory
20 Hz to 20kHz(+/-0.5dB)
nominal 500mV
2 watts RMS minimum (8 ohms)
+/- 12dB @ 6.5kHz
+/- 12dB @ 100Hz
2 x chrome brackets/2xM6screws/2xM6nuts/
2 x M3 screws,
2 x double-sided adhesive pads,
4 x rubber feet
2 x 9vDC type ‘PP3’, Mn1604 or equivalent (not included)
30-40 Hours using Alkaline batteries
42(W)x195(D)x22(H) mm
Less than 0.5 Kg
17vDC, 320mA (RED PSU2) output plug wired centre pin positive. Ask
your dealer/distributor for availability.
OPERATION
PAGE
4

This product complies with the requirements of European Directive 89/336/EEC
For Europe
Printed in England
Copyright / Software Copyright / Design Right 2001RED Sound Systems Ltd.
* Specification and /or appearance subject to change without prior notice due to product
improvement.

Bourne House, Cores End Road,
Bourne End, Bucks. SL8 5AR. England
Phone : [phone]
Fax : [phone]