ORANGE Bass Butler User manual

I N T R O D U C T I O N
Thank You for Choosing Orange
Ever since the founding of the company in 1968, Orange has been a pioneering force in the guitar
amplification industry. Today, with a team of the world’s finest amplifier engineers, Orange continues to
push back the boundaries of conventional amplifier design.
Our commitment to craftsmanship and quality control has allowed our amplifiers to stand the test of time,
giving their owners as much pleasure now, as the day they were bought. To maintain this level of
excellence, each Orange amplifier is put through many rigorous test procedures before leaving the
factory.
This manual contains valuable technical and safety information. Please take the time to read this
manual as the information may enhance the sound and performance of your amplifier. We are confident
that you will be delighted with your new purchase and that it will provide you with many years of
enjoyment. You are now a member of the Legendary British Guitar Amplifier Owners Club!
In the interests of product improvement, the contents of this manual may be subject to change without notice.
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S A F E T Y
Important Safety Information
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarised or grounding-type plug. A polarised plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding prong.
The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury
from tip-over.
13) Unplug this 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, such as power-supply cord or plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.
NO USER SERVICEABLE PARTS INSIDE. DO NOT ATTEMPT TO GAIN ACCESS TO THE INTERIOR
OF THE PRODUCT. REFER ALL SERVICING TO AUTHORISED ORANGE SERVICE PERSONNEL
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to
the presence of un-insulated ‘dangerous voltage’ within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
Terminals labelled as “Speaker Outputs” must be connected to a speaker cabinet of the designated load
rating using an un-shielded two conductor cable for speaker use at all times during operation.
The exclamation point within an equilateral triangle and "WARNING" are intended to alert the user to the
presence of important operating instructions. Failure to heed the instructions will result in severe injury or
death.
WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
For indoor use only. Do not place liquids, or objects containing liquids on or near the apparatus
Models which use a mains cord/plug to connect to the mains electricity supply must be connected to a
mains socket outlet with a protective earthing connection. The voltage selector switch and mains fuse are
set at the factory for the country or region in which this Orange product is intended to be sold. To prevent
serious damage to the product, ensure that the rated AC mains voltage indicated on the product's rear
panel agrees with the mains voltage from your AC mains outlet before connecting the mains cord/plug.

panel agrees with the mains voltage from your AC mains outlet before connecting the mains cord/plug.
If the product is to be used outside of the factory set region, ensure the voltage selector switch (found on
the rear or side panel) is set to the correct voltage for the new country/region and that the appropriate
mains fuse is fitted in the pull-out fuse tray below the IEC mains input.
The correct mains fuse rating for your product is printed on the chassis. Use only the same 250V type
and rating as specified for the product. Different operating voltages may require the use of different types
of line cord and attachment plugs. If you are unsure, contact your Orange Dealer.
This Orange product conforms to UL 60065:2001 (Seventh Edition) + A1:2005 + A2:2010 for Audio,
Video and Similar Electronic Apparatus. Certified to CAN/CSA CAN/CSA-C22.2 No. 60065:03
This Orange product complies with the WEEE Directive (2002/96/EC) marking requirement. This affixed
product label indicates that you must not discard this electrical/electronic product in domestic household
waste. Please contact your local authority for details of your nearest approved recycling facility.
BASS BUTLER BASS PRE AMP
The Bass Butler was conceived over many IPAs in a small bar on Santa Monica BLVD called the Surly
Goat by Technical Director Adrian Emsley with Morgan Nicholls (who played bass in The Who at the
2012 Olympics closing ceremony and also plays the keyboards in Muse). The idea was to have his epic
bi-amp touring rig in a small, portable preamplifier pedal. We are confident that you will be delighted with
your new purchase and that it will provide you with many years of enjoyment.

Front Panel
Dirty Channel
The Dirty Channel is activated by the footswitch, indicated by a GREEN LED. These controls only apply
when the Dirty Channel is active.
Volume
Controls the overall output level of the Dirty Channel. This controls the level from the Dirty Channel XLR
output and the Amp line output.
Treble
Controls the high end/treble response of the Dirty Channel. Increasing the top produces brighter tones for
‘livening up’ darker sounding basses.
Middle
Controls the midrange response of the Dirty Channel. Increasing the mids creates a fatter sound, whilst
reducing ‘scoops’ the tone.

Bass
Controls the low end/bass response of the Dirty Channel. Increasing the bass produces deeper sounds.
Gain
Controls the gain level on the Dirty Channel only. Higher levels will raise the output volume. When set to
minimum, there will be some sound, voiced mainly for upper mids and treble.
Clean Channel
The Clean Channel is the Bass Butler’s main channel and is always on. The following controls only apply
to the Clean Channel.
Volume
Controls the overall output level of the Clean Channel. This controls the level on the Clean Channel XLR
output and the Amp output.
Treble
Controls the high end/treble response of the Clean Channel. Increase the treble for brighter tones or
reduce for a warmer sound. ( +/- 18 dB )
Bass
Controls the low end/bass response of the Clean Channel. Increasing the bass produces deeper sounds.
( +/- 18 dB )

Rear Panel Features
Compressor
The compressor on the Bass Butler is based on the compressor found in the Orange Kongressor and
designed to emulate studio compressors. A RED LED shows the amount of compression. The more
compression, the brighter the RED LED shines through the jewel.
Power
The Bass Butler only runs on a 18V DC centre-positive polarity power supply (regulated) and the barrel
plug should be a ‘standard 2.5mm pedal type’. Make sure your power supply meets these specifications.
Lift
The Ground Lift switch can solve ground loop issues caused by connecting the Bass Butler to more than
one piece of grounded equipment. Lifting this ground connection can eliminate unwanted hum in this
situation. This function should only be operated to cure this specific issue and never used when the Bass
Butler is only connected to one piece of grounded equipment. Note: The XLR is lifted when the switch is
up.

Bass Butler Signal Path
1
2
3
4
5
6
7
8
9
10
11

12
1
Bass Guitar Input
The signal is split at the input, feeding two completely independent parallel channels.
2
Footswitch
The footswitch on the Bass Butler will mute the Dirty Channel.
3
Optical Compressor

The level of compression is controlled by the compression dial. The LED will glow RED to indicate
compression.
4
Expression Pedal (optional)
Use an external expression pedal to control the amount of signal going to the dirty channel.
5
Clean Bass Amp
With simple-but-versatile Bass, Treble and Volume controls.
6
High Gain Guitar Amp
With 4 stages of gain and a 3-band EQ.
7
Blended unbalanced 1/4” Line Out
8
Bass Cab Sim
Based on the OBC410
9
Guitar Cab Sim
Based on the PPC412
10
Balanced XLR Out
11
1/4″ Line Out
12
Balanced XLR Out
Applications

FX PEDAL STRAIGHT INTO YOUR AMP
Run the ‘AMP’ output of the Bass Butler into the front end of your amplifier.
THROUGH THE FX RETURN
Run the ‘AMP’ output of the Bass Butler into the FX return of your amplifier to bypass the pre-amp section
of the amp.

DIRECT TO MIXING CONSOLE
Run the XLR outputs from the Bass Butler and plug these directly into the input of a mixer/recorder.

EXPRESSION PEDAL
Connect an expression pedal to the Bass Butler to control
the level of gain into the Dirty Channel. Any standard TRS expression pedal will work with the Bass
Butler.
Note: The Gain control on the Dirty Channel will dictate the maximum amount of gain that the expression
pedal can control.
WARRANTY
FREE EXTENDED WARRANTY OFFER
Orange amplifiers are covered by our standard 1 year manufacturer’s warranty from the date of purchase,
covering manufacturing and component defects. This is non-transferable and is subject to consumer
protection laws in the country of purchase and distributor’s terms and conditions. An additional year can
be added by registering your product online. Valves and speakers supplied with an Orange amplifier or
purchased separately at our online store are covered for 90 days from the date of purchase.
The warranty status of any Orange product is subject to its being used for its intended purpose in suitable
conditions. As the manufacturer we reserve the right to refuse to warranty any Orange product which has
been misused in any way whatsoever. Full terms and conditions can be viewed on our webpage here.
REGISTER RIGHT NOW AT
orangeamps.com
FUSES CAN FAIL AT ANY TIME!
Orange amps are protected from damage caused by inconsistent mains voltage by various fuses. We
recommend that Orange users have a set of spare fuses.
For more information on maintenance and for accessories and spares, please click here:
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