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FOUR STROKE SERIES USER MANUAL 

V1.0 

 

 

 

POW

ER

 

 

Switches mains power to the amplifier on/off. Connect the supplied IEC/Mains cord 
to the AC Mains inlet (rear). The power LED will illuminate when the mains switch is 
set  to  ON. 

Set  the 

VOL.

 control  to  zero/minimum  before  switching  on  power  to  the 

amplifier.

 

IN

P

UT

 

 

Use a quality shielded instrument cable to connect your instrument to the 

INPUT

 jack socket. 

The 

PAD

 switch (-6dB) selects the correct input level for instruments with active or passive 

pickups. 

V

OL.

 

 

Adjusts the overall output volume level. 

C

OM

P.

 

 

Controls the effect level of the on-board compression circuit. Adding compression can help to 
smooth out sound peaks and transients for a fatter, more rounded tone. The 

COMP.

 LED will 

react to your playing and flash blue at higher 

COMP.

 settings to indicate the gain reduction.   

4

 B

AN

 

PA

RA

M

ET

RI

C

 E

Q

UAL

IS

ER

 

 

 

 
 
 

 

 
 
 

 

 
 
 

 

 
 
 

 

 

 

- / + 

CUT/BOOST 

Controls the level of the 

selected frequency with up to 

18dB cut (-) or boost (+) 

 

FREQUENCY 

Selects the centre frequency of the 
corresponding CUT/BOOST control

 

B

A

SS

 

 

40 – 400Hz 

LOW

 

M

ID

 

 

80 – 800Hz 

H

IGH

 

M

ID

 

 

250 – 2500Hz 

TRE

B

LE

 

 

550 – 5500Hz 

 

When a 

CUT/BOOST

 control is in the 12 o’clock/noon position, the response of the frequency 

band is flat with no cut or boost. Sweeping the corresponding 

FREQUENCY

 control will have 

no effect. 

 

The frequency bands crossover to enable even more cut/boost if required. For example, if the 

HIGH MID 

and 

TREBLE 

frequency bands are both set to 550Hz, the effect of their 

CUT/BOOST

 

controls is combined.  

FOOT

 

SW

IT

C

H

 

 

Connect a latching footswitch (

e.g. Orange FS-1

) to this jack socket to remotely engage/defeat 

the compression circuit. Use a standard instrument/tip-sleeve (mono) cable to connect the 
footswitch. 

 

FRONT PANEL FEATURES 

Summary of Contents for 4 Stroke Series

Page 1: ...USER MANUAL 4 STROKE ORANGE MUSIC ELECTRONIC CO LTD LONDON ENGLAND Est 1968 BASS AMPLIFIER SERIES...

Page 2: ...s passed by a generation of players confronted with an array of lifeless digital offerings 4 Stroke Series amplifiers speak with genuine authority remaining clean composed and expressive all the way u...

Page 3: ...s apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way s...

Page 4: ...age to both the amp and cabinet s Speaker outputs are wired in parallel 1 x 8 Ohm cabinet Use either speaker output 2 x 8 Ohm cabinets Use both speaker outputs 1 x 4 Ohm cabinet Use either speaker out...

Page 5: ...and flash blue at higher COMP settings to indicate the gain reduction 4 BAND PARAMETRIC EQUALISER CUT BOOST Controls the level of the selected frequency with up to 18dB cut or boost FREQUENCY Selects...

Page 6: ...utput power 4 5 VOLTAGE SELECTOR This is factory set for the region in which the amplifier is intended to be sold Do not tamper with this switch Refer to Before Using Your Amplifier 6 AC MAINS INLET C...

Page 7: ...ort pages on orangeamps com Always refer servicing to an authorised Orange technician No user serviceable parts inside Attempts by non authorised personnel to access the interior of the product will v...

Page 8: ...FOUR STROKE SERIES USER MANUAL V1 0 SERIOUS BASS AMPLIFICATION...

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