Chandler Limited REDD User manual

For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
Chandler Limited®
REDD Microphone
User Manual
OFFICIAL
EQUIPMENT

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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
Thank you for purchasing the Chandler
Limited REDD Microphone, you now own a
piece of EMI / Abbey Road Studios official
equipment.
Continuing in the rich tradition of
innovation at EMI, dating back to the
early 1930s with Alan Blumlein, the father
of ‘Stereo’, the company’s first coil
microphones, velocity ‘ribbon’ mics and the
“Blumlein pair” technique, Chandler Limited
and Abbey Road Studios introduce the first
new EMI badged microphone in over a half
century, the ‘REDD Microphone’.
Designed by Chandler Limited Founder and
Chief Designer, Wade Goeke, the patent
pending REDD Microphone represents a shift
in traditional microphone design, bringing
together historic circuitry and the
heralded EMI REDD.47 pre-amplifier sound in
a new and unique way.
The REDD Microphone is a large diaphragm
tube condenser microphone, featuring a
dedicated internal REDD.47 Mic Amplifier
circuit.
The REDD Microphone system includes:
microphone, 7-pin microphone cable, power
supply and AC cord, shock mount suspension
apparatus, pattern select screwdriver, and
custom moulded flight case.
The REDD Microphone, featuring its on-board
REDD.47 pre-amplifier circuit, is contained
in a cylindrical metal assembly, directly
coupled to a premium custom made, hand-
milled, platinum membrane capsule, housed
in the chrome head-basket compartment. The
front of the microphone is distinguished by
the Chandler Limited and Abbey Road Studios
logos.
The close proximity of capsule to
microphone pre-amp provides the shortest
possible distance between microphone
capsule and pre-amplifier, allowing the
REDD Microphone to drive the line from the
source, rather than the end. The all-in-one
approach reduces electronic circuitry in
the audio path, and allows for high-grade
audio transmission from the source.
The REDD Microphone was designed to
plug directly into audio interfaces or
tape machines, however, can be used with
traditional external pre-amplifiers for
more tonal possibilities.
At Chandler Limited we are proud of our
American made products and we hope you like
them!
Please feel free to call our shop anytime
for help or questions. Phone: (319) 885-
4200
HISTORY
In 1958, EMI and Abbey Road Studios,
through their REDD (Record Engineering
Development Department) technical
division, designed the REDD.47 line
amplifier as a plug-in line amplifier for
their new REDD.51 consoles, replacing the
Telefunken/Siemens V72s used in early REDD
mixing consoles. The REDD.47 line amplifier
was unique, both in design and sound from
the V72s.
The first REDD.51 console was manufactured
in 1959. However, it wouldn’t be until 1964
before a REDD.51 console was installed at
Abbey Road Studios’ Studio Two, home to
The Beatles, leaving its exceptional sonic
character on their recordings from 1964 to
1968.
OFFICIAL
EQUIPMENT

3
For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
IMPORTANT
QUICK START & POWER CYCLE PROCEEDURE
1. Mount the microphone to a suitable microphone stand using the supplied
shock mount suspension apparatus.
2. PRIOR TO POWER-UP - CONNECTIONS
a. Connect the microphone to power supply using the supplied 7-pin
microphone cable.
b. Connect the user supplied standard 3-pin XLR microphone cable to audio
interface or tape machine.
c. Connect the power supply to an AC outlet.
3. POWER-UP
a. Once all connections to and from the power supply to the microphone
have been made, turn on the power supply, by means of the power switch
located at the front of the PSU.
b. The on-board microphone LED will illuminate red inside the head basket
of the microphone to signify power is on, and help align the capsule
to the sound source.
c. WARNING- Do not disconnect the 7-Pin microphone cable while AC power
is applied to the microphone. If disconnection is to be made, power
down the microphone, and allow 3-5 minutes of cool-down time prior to
disconnection of the 7-pin microphone cable from the power supply.
4. WARM-UP TIME
a. Prior to sound incident or usage, allow the microphone’s tubes to
warm-up for a minimum of 5 minutes.
5. POWER DOWN
a. Prior to disconnecting any cables, power down the PSU, and allow 3-5
minutes for the microphone’s internal tubes to cool down and the
capsule adequate time to discharge.

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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
ON-BOARD MICROPHONE CONTROLS
PRE AMPLIFIER
The dedicated on-board REDD.47 Mic
Amplifier (pre-amplifier) circuit provides
the ability to use the REDD Microphone
with or without the need for an external
pre-amp. The preamplifier and most of its
available features are adjustable directly
from the microphone body.
GAIN
The on-board microphone pre-amplifier
gain setting is adjustable at the rear
of the microphone. There’s nine gain
settings to chose from, including:
+4,8,12,16,24,27,30,33db. The resultant
effective gain is also dependent upon the
‘NORM’ vs ‘DRIVE’ mode setting; selection
of either ‘NORM’ or ‘DRIVE’ mode is
available via toggle switch from the front
of the microphone body, and have a tonal
effect on the microphone signal.
NORM
When the toggle switch is set to ‘NORM,’
the REDD Microphone pre-amplifier is
considered in its normal operational
condition. The sound characteristic in this
state, is more organic or natural, or laid-
back in comparison to ‘DRIVE’.
DRIVE
The ‘DRIVE’ setting has an overall effect
over the adjustable gain range, both in
terms of structure and more importantly,
harmonic content. It is similar to the
‘FINE GAIN’ on the REDD.47 Mic Amplifier
rack-mount counterpart, however, set fully
on and non-variable.
When set to the ‘DRIVE’ position, the
tonal effect on the microphone signal
is identifiable, characterized as being
more immediate, punchy and present. The
resultant tonal change is also interactive
and dependent upon the gain setting.
Depending upon the sound incident level
and gain setting, ‘DRIVE’ mode, if driven
hard enough, can impart wonderful harmonic
coloration and tube saturation with a
little characteristic ‘hair’ on a signal.
+33
+24
+20
+16
+12
+8
+4
+30
+27
PATENT APPLIED FOR
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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
POLE
In cases where phase continuity relative
to other microphones in the environment
is required, an 180ºpolarity reversal of
the output signal is achieved by use of
the ‘POLE’ or phase reverse toggle switch
available from the microphone body.
When the toggle is set outward, to the
circular or ‘O’ designation, phase is in
its natural position at 0º. Conversely,
when the switch is positioned to the left
at the ‘ø’ designation, phase is reversed
180º.
POLAR PATTERNS
The directional characteristic of the REDD
Microphone is selectable. Two polar pattern
options are provided, Cardioid or Omni-
directional, either is available via toggle
switch from the microphone body, using the
supplied pattern select screwdriver.
CARDIOID
This unidirectional polar pattern
discriminates against source arriving
at the rear of the capsule, and to a
lesser degree at the sides, in preference
for sound incident at the front of the
microphone.
Proximity effect is a natural occurrence
of the Cardioid polar pattern, where low-
end is emphasized when the sound source is
closer to the microphone.
TIP- If in Cardioid, the microphone is
required to be placed in close proximity to
a source, such as acoustic guitar, where
capture of low frequency data is less
desired, or in small environments where
natural build-up can occur, use the ‘LOW-
CONTOUR’ feature as an alternate microphone
voicing; See ‘LOW-CONTOUR’ control section.
If Cardioid is not required, and ‘LOW-
CONTOUR’ is unnecessary, the Omni pattern
can be used to diminish proximity effect.
TIP- Use the Cardioid pattern in scenarios
where minimal pickup at the rear of the
microphone is needed.
OMNI
The omni-directional polar pattern is
spherical, picking-up from all sides of the
capsule, e.g. the pattern is indiscriminate
to the direction of sound incident.
Proximity effect is not a feature of the
Omni pattern, and as a result, an apparent
drop in lows (and gain,) is a normal
byproduct of this setting.
TIP- Use Omni where a sense of space is
apropos, for example, strings, acoustic
guitars, pianos or other material, or a
more natural distribution of low-end is
preferable.

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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
PAD
Facility to decrease sensitivity of the
microphone by -10db exists, and is made
available from the microphone body via
toggle of the PAD switch to the downward
position, using the supplied pattern select
screwdriver.
TIP- Use the PAD feature in scenarios where
the sound incidence is overloading the
capsule.
POWER SUPPLY & AUXILIARY
CONTROLS
The power supply (PSU,) supplied with the
REDD Microphone kit is wired localized for
regional AC, either 110V or 220V (115/230V,
depending upon country of purchase. A
REDD Microphone kit purchased in a region
where AC is 110V (115V) standard cannot be
used in 220V (230V,) unless it is modified
for the correct operating voltage or an
external power converter is used. NOTE:
Some external power converters.
PSU REAR PANEL
AC POWER
At the rear panel of the PSU, exists a
standard male IEC connector for connection
to AC power, using the supplied IEC cable.
Also at the rear PSU panel is bayonet style
fuse compartment. For fuse replacement
procedure and value, please reference the
maintenance section of the manual.
POWER SWITCH
The master power switch is located at
the bottom left of the PSU rear panel and
labeled ON/OFF. Once all connections, to
and from the microphone to the PSU have
been made, flip the power switch to supply
mains power to the microphone. NOTE: The
microphone head basket will illuminate,
signifying power is on.
FUSE
000001
Chandler Limited
REDD MICROPHONE
CAUTION AVIS
RISK OF
ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR FACEPLATE)
DO NOT EXPOSE TO RAIN OR MOISTURE
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR

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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
PSU FRONT PANEL
MIC INPUT
The top receptacle is a 7-pin female
jack. Plug the supplied 25’ (762cm) 7-pin
microphone cable here, and attach the
female end of the cable to the microphone
base connector.
LINE OUTPUT
The bottom receptacle is a standard 3-pin
male XLR jack. This output jack supplies
analog line level signal to your audio
interface converter, tape machine, or
other external audio processor; the source
(output) impedance is 200 ohms.
OUTPUT CONTROL
The ‘OUTPUT’ control is continuous, acting
as a fader would on a console, and is used
to reduced the overall output of the REDD
Microphone; this control is functionally
the same as the REDD.47 Mic Amplifier rack-
mount.
In most applications, attenuating the
output of the microphone signal maybe
unnecessary and should be left fully
clockwise at unity or ‘0’. However, if
reduction of the overall output signal
is required, simply rotate the ‘OUTPUT’
control counterclockwise until the level
desired level is achieved.
TIP- On drums room application, if a
driven sound with tube saturation is the
goal, turn up the gain, engage ‘DRIVE’ and
turn down the ‘OUTPUT’ to not clip your
converter’s input.
The ‘OUTPUT’ control is operational
regardless of the ‘PULL FOR LOW CONTOUR’
feature being actuated or not.
LOW-CONTOUR
The ‘LOW-CONTOUR’ function is an alternate
voicing of the REDD Microphone, it features
a tighter sound with top-emphasis and is an
excellent choice for many sources.
‘LOW-CONTOUR’ is available from the power
supply (PSU,) to actuate the ‘LOW-CONTOUR’
voicing, simply pull the ‘OUTPUT’ control
potentiometer outward; the ‘OUTPUT’ control
is still fully operational.
TIP- In recording scenarios and
environments, where a more top-emphasized
sound and a tailored low-end may be
desired, the ‘LOW-CONTOUR’ voicing is well
suited for this purpose.
0
-I
-3
-4
-5
-6
-7
-8
-9
0
-2
-I
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E D D
Y P
E
P
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F
O
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O
W
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PUSH
0
-I
-3
-4
-5
-6
-7
-8
-9
0
-2
-I
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F
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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
MAINTENANCE
STORAGE
When the REDD Microphone is not in use for
extended periods of time, please stow the
microphone system in the supplied pressure
controlled waterproof case, in a room
temperature environment.
NOTE: If the microphone is to be left out
for daily use, take care to use a dust
cover, to further protect capsule.
TUBES
The dedicated on-board REDD.47 Mic
Amplifier circuit relies on two vacuum
tubes. Should one or both of the microphone
tubes need replacement, please make the
appropriate contact as found in the service
section of this manual.
FUSE REPLACEMENT
WARNING- if, fuse replacement is necessary,
make sure to replace using the same type of
fuse only. FUSE TYPE: 1/2 AMP 250V SLO-BLO.
If fuse replacement is required, make
sure the PSU is disconnected from AC power
by removing the power cord from the IEC
receptacle, and or AC wall jack.
Push gently on the fuse cap and turn in a
counterclockwise motion, releasing the cap
by unscrewing it until it is free from the
fuse holder compartment.
Place the new fuse (of the same type 1/2
AMP 250V SLO-BLO) into the fuse cap. While
holding the fuse cap, insert the opposite
end of the fuse into the fuse holder
compartment and gently push the fuse cap
inward, turning in a clockwise motion
until the fuse cap is securely screwed into
place; do not over-tighten.
TECHNICAL SERVICE
U.S. SERVICE
Prior to sending in your gear for
repair, please contact our shop at the
number below. We will assist you in
troubleshooting the problem and, if needed,
we will issue you an RMA# to send in the
gear.
Send repairs to:
Chandler Limited, Inc.
Attention: Repairs
222 S. Cherry St.
PO Box 38 (if sending via the postal
service)
Shell Rock IA 50670
Phone: [phone]
Email: [email protected]
INTERNATIONAL SERVICE
Repair of Chandler Limited products
purchased outside of the United States, is
provided by local or regional authorized
Chandler Limited distributors. To obtain
service or repairs, please contact your
local dealer or regional distributor for
further instruction.
Visit chandlerlimited.com for a list of
authorized International Distributors.
CE Certification
Chandler Limited declares under its
sole responsibility that all products
manufactured by them are in compliance
with Electromagnetic Compatibility
(EMC) Directive 2014/30/EU; Standards:
EN55103-1:2009+A1:2012; EN55103-2:2009;
EN55013:2013 and Low Voltage Directive
(LVD) 2014/35/EU; Standards: EN60065:2
002+A1:2006+A11:2008+A2:2010+A12:2011,
EN60065:2014.

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For more information, visit www.chandlerlimited.com. © 2017 Chandler Limited, Inc. All Rights Reserved. REDD-MIC_UM_123116
Abbey Road Studios, EMI, REDD and their associated logos are trademarks of EMI (IP) Limited.
REDD MICROHPONE SYSTEM
Item Description Dimensions Weight
Microphone Tube, Large Diaphragm
Condenser
10.97(L)x2.46(W) in
(278.64x62.48 mm) 1.11 lb / 0.504 kg
Capsule
Platinum membrane,
custom handmade, hand-
milled
x x
Circuit REDD.47 Mic Amplifier,
Tube x2 x x
Gain Switchable / +4 to
+33db in ‘NORM’ mode x x
Maximum Gain Extended gain in DRIVE
mode x x
Patterns Cardioid / Omni x x
PAD 10db / Switchable x x
Phase 0-180º/ Switchable x x
Power Supply
External PSU, AC set
internally for region,
included
11.4(L)x4.04(W)
x4.81(H) in
(289.56x102.62x122.17
mm)
5.02 lb / 2.28 kg
Low-Contour Control Preset, switchable x x
Output Control Continuous, 200Ω output
impedance x x
Fuse 1/2 AMP, 250V SLO-BLO x x
Accessories
Microphone Cable 7 Pin, Mogami (Neglex
3172,) included 25’ (7620 mm) x
AC cable Type IEC, included 6’ (1828.8 mm) x
Shockmount Included x x
Pattern select screw-
driver Included x x
Case Moulded flight case,
included
21.85(L)x8.31(W)
x16.85(H) in
(555x211x428 mm)
20 lb / 9.07 kg, loaded