Dunlop MC-404 User Manual

For three decades, Bob Bradshaw has been the world’s foremost designer
of custom guitar pedalboards and effects systems for many of rock’s most
influential guitarists. And for just as long, MXR and Crybaby have been
synonymous with the effect pedal innovations that have shaped the tone
of modern electric guitar playing. So it was only natural for them all to join
forces to create a dynamic new line of pedals offering the ultimate in tone,
functionality and road-worthy dependability. Since 1980, CAE’s groundbreaking
pedal designs were made in limited quantities only for a select clientele of
world class guitarists. But now these very same devices and circuits will
be available to the masses.

MC-404 CAE WAH

The MC-404 CAE Wah was developed by Bob Bradshaw of Custom Audio
Electronics and the Crybaby design team with the goal of creating a highly
versatile wah-wah of top-grade components. It features dual Fasel
inductors with two distinct voices (high-end emphasis or low to mid
resonance), and a built-in MXR MC-401 Boost/LineDriver adds even more
flexibility. Choose between inductors and turn the boost on or off with the
side-mounted kickswitches; bright LEDs on each side of the wah indicate
operation status. The MC-404 boasts true bypass, a long-life CTS potentiometer,
and internal pots for "Q" and gain adjustments—high performance and
quality that you can only expect from Dunlop, the world leader in wah-wah
technology.

DESCRIPTION

- Select between a Yellow or Red Fasel Inductor for two distinct tones

- Features a custom designed CTS extended life low noise potentiometer

- User selectable gain output stage with kick switch and led indicator

- Designed with low noise class ‘A’ operational amplifiers

- Bright LEDs indicate effect status, Inductor mode and Boost on or off mode

- True bypass

©2007 DUNLOP MANUFACTURING, INC. P.O. BOX 846 BENICIA, CA 94510 U.S.A.

TEL: [phone] FAX: [phone] WWW.JIMDUNLOP.COM

CONTROLS

1 Volume knob sets the

amount of Boost level

2 Illuminated Blue LED

indicates Boost mode

3 Illuminated Green LED

indicates Effect on

4 Select “IN” position for

Boost mode

5 Select “IN” position for

Yellow Inductor, or “OUT”
for Red Inductor

6 Adjusts the “Q” for the

Yellow Inductor

7 Adjusts the “Q” for the Red

Inductor

92503007900

POWER

Insert a 9-volt battery, plug in an ECB-003 power adapter (ECB-003E for
Europe), or plug into a Dunlop DC Brick multi-power supply 9-volt output.

DIRECTIONS

To begin using your MXR/CAE MC-404 WAH:
A)

Run a shielded instrument cable from your guitar to the MC-404’s
Instrument jack.

1

6

7

5

B) Run another shielded instrument cable from the MC-404’s Amplifier jack into

2

3

4

your amplifier input.
C) Turn on the amplifier and begin playing.
D) Select between two distinct wah voices with the right hand side mounted red
kickswitch. Choose “Red Fasel” (button “out”, red LED lit) for a classic Crybaby

tone or “Yellow Fasel” (button “in”, yellow LED lit) for a deep wah tone with

increased fundamental.
E) For a preset volume boost, use the Boost Volume knob mounted on the right

hand side to select the amount of boost (up to +20dB). Engage the kick-switch

mounted on the left hand-side (LED will illuminate Blue) to have this preset boost

occur when you activate the pedal.
F) To turn the pedal on/off, push the toe of the pedal down until you feel a “click”.

Illuminated green LED indicates On.

SPECIFICATIONS

• HF Mode (Yellow Inductor)

Low Pass .............................................400Hz ±Hz

High Pass .......................................... 1.9KHz –2.2KHz

• LF Mode (Red Inductor)

Low Pass .............................................255Hz - 355Hz

High Pass ..........................................1.3KHz –1.5KHz

INPUT IMPEDANCE (Wah Active): .............................................1M Ohms

OUTPUT IMPEDANCE: ..................................................................<10k Ohms

MAXIMUM INPUT LEVEL (BOOST OFF): ....................................-6dBm@

MAXIMUM OUTPUT LEVEL: .........................................................+8dBm

MAXIMUM GAIN (TOE DOWN): ...................................................+16dB

MAXIMUM GAIN (HEEL DOWN): ................................................+16dB

S/N (HEEL DOWN): ........................................................................>85.5dBV

S/N (TOE DOWN): ...........................................................................>82dBV

BYPASS CONFIGURATION: ............................................................True Bypass

POWER REQUIREMENTS: ............................................................<6.3mA @ 9V DC

Filter’s Center Frequency