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Bass chorus deluxe – Dunlop Manufacturing M83 User Manual

Page 2

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SAMPLE SETTINGS

M83

BASS CHORUS DELUXE

DESCRIPTION

• Chorus and Flanger modes

• Analog bucket brigade technology

• Separate Bass and Treble controls for detailed tone sculpting
• X-OVER mode for increased low end clarity

POWER

The MXR Bass Chorus Deluxe is powered by one 9 volt battery
(remove bottom plate to install) or a 9 volt power supply such as
the Dunlop ECB003/ECB003E AC adapter.

DIRECTIONS
• Run a cable from your bass to

the Bass Chorus Deluxe’s Input
jack and run another cable from
the Bass Chorus Deluxe’s Output
jack to your amplifier.

• Chorus is the default mode.

To use Flanger mode, press the
FLANGER switch. To engage
X-Over mode and decrease
modulation on low
end frequencies, press the
X-OVER switch.

• Start with all controls at

12 o’clock.

• Turn the effect on by depressing

the footswitch.

• Rotate the BASS knob clockwise

to boost low end frequencies or
counterclockwise to cut them.

SPECIFICATIONS
Input Impedance

2 MΩ

Output Impedance

TIP (Mono)

600 Ω

RING (Stereo)

3.3 KΩ

Max Input Level*

1 kHz/+10 dBV

Max Output Level

+13 dBV

Frequency Response

20 Hz to 20 kHz/±1 dB

Signal to Noise Ratio*

>96 dBV

Tone Controls (Delay Signal Only)

+8 dB, -11 dB, 100 Hz (BASS)

-2 dB, 100 Hz (Center Position BASS)

±14 dB, 10 kHz (TREBLE)

X-OVER Control

+7.5 dB, 20 Hz/+3 dB, 100 Hz (Dry Signal)
-18 dB, 20 Hz/-3 dB, 160 Hz (Delay Signal)

Rate Control

0.1 Hz to 10 Hz

Maximum Delay Time

12 ms

Minimum Delay Time

400 µs

Delay Noise Reduction

2:1 ratio

Bypass

Mono

True Hardwire

Stereo

Hardwired

Current Draw

30 mA

Power Supply

9 volts DC

* A-weighted, all controls at mid position

• Rotate the TREBLE knob

clockwise to boost high end
frequencies or counterclockwise
to cut them.

• Rotate the INTENSITY knob

clockwise to increase modulation
intensity or counterclockwise to
decrease it.

• Rotate the RATE knob clockwise

to increase modulation speed or
counterclockwise to decrease it.

• Rotate the WIDTH knob

clockwise to increase the
modulation sweep range or
counterclockwise to decrease it.

• An internal switch selects TRS

(tip-ring-sleeve) Stereo Hardwire
bypass or Mono True bypass.
Factory set to Mono True bypass.

FIXATION BLVD.

THE PO PO

JOHN FRANCIS

DUNLOP MANUFACTURING, INC.

P.O. BOX 846 BENICIA, CA 94510 U.S.A.

TEL: 1-707-745-2722 FAX: 1-707-745-2658

CONTROLS

BASS knob controls how much low

end is cut or boosted

X-OVER switch engages

X-Over mode, which decreases the
amount of modulation on your low
end (indicated by yellow LED)

FLANGER switch activates Flanger

mode (indicated by red LED)

TREBLE knob controls how much

high end is cut or boosted

INTENSITY knob controls the

overall amount of modulation in
CHORUS mode and regeneration
in FLANGER mode.

RATE knob controls the speed of

the modulation sweep

WIDTH knob controls the range

of the modulation sweep

FOOTSWITCH toggles effect on/

bypass (indicated by red LED)

7

7

8

8

SCORE/FOLD

SCORE/FOLD

SHORT TRIM

92503013529revA_M83_man.indd 4-6

11/8/12 8:18 AM