CONTENTS
Important Safety instructions
Introduction
Main Features
Ra ck Mount
Setup and Operation
Front Panel
Back Panel
Specifications
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02
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04-05
06
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Important Safety instructions
Read these instructions, Keep these instructions, follow all
recommended guidelines included within these instructions.
Failure to do so could void your warranty.
DO NOT expose this equipment to water (or any other fluids for
that matter)
DO NOT cover or block ventilation grills. (tubes and transformers
can become hot and the ventilation is there to dissipate heat)
Clean only with a dry cloth
DO NOT install or operate near anything which emits excessive
amounts of heat (ovens, radiators, refrigerators, etc.) or in extreme
direct sunlight.
Always ensure the amplifier is connected to a grounded, A/C
power supply which meets the power supply specifications on the
rear panel of the amplifier.
Turn off the amplifier and disconnect the power chord from the
amplifier before replacing fuses or tubes.
Only use a 3 pin (grounded) power chord like the one included with
your purchase. DO NOT use a 2 pin (non-grounded) power chord,
this is not safe.
WARNING: Always make sure proper load is connected to the
correct speaker output with matching impedance before operating
the amplifier. Failure to do so could pose a shock hazard and may
result in damage to the equipment.
Use only unbalanced professional speaker cable to connect a load
to the amplifier.
Refer all servicing, repair or maintenance of equipment to a
qualified professional.
MOOER will not be held responsible for damage of the equipment or
personal injury caused by improper use, repair or maintenance of
our products. We are always here to help with advice or instructions
so please feel free to contact us for help.
01
Introduction
The MOOER TUBE ENGINE is a 20W tube power amp. This Class A/B
tube circuit utilizes handpicked and matched sets of el84 tubes to
provide the perfect platform for your preamp pedals, amp modellers
and effects units.
TUBE ENGINE is fairly transparent, allowing the real tone of your
other units to be heard, whilst adding just enough warmth and color to
make this a better choice over the solid-state alternatives.
Controls are very simple as you’d expect with just presence and
volume for dialling in your brightness and getting fast adjustment on
your overall sound. The input has 2 gain settings for easy integration
with different equipment.
TUBE ENGINE has been housed in a light weight metal chassis and
comes complete with a carry handle and rack mounting lugs.
Main Features
• 20Watts class A/B tube power amp
• Hi/Low gain input
• Strong, light-weight metal chassis
• Supplied with carry handle and rack mounting lugs
• 1 X 12AX7 (ECC83) 1 X 12AT7 (ECC81) 2 X EL84 (6BQ5)
• Outputs for 1 X 16 , 1 X 8
or 2 X 16
02
Rack Mount
TUBE ENGINE comes complete with a full set of rack mounting lugs
and can be mounted in a standard 2U rack space.
Remove the bolts in the picture on both sides of the TUBE ENGINE to
release the rack mounting lugs
Put the rack mounting lugs in place and reinstall the bolts being sure
to secure them tightly
03
Setup and Operation
1.Connect your TUBE ENGINE to a speaker or load box with the
correct impedance using a professional unbalanced speaker cable.
(See SPEAKER OUT on the Back Panel section of this manual)
CAUTION: Never operate TUBE ENGINE without a speaker load
connected. This could cause irreparable damage.
2. Connect your preamp, pedalboard or multi effects unit to
the TUBE ENGINE INPUT
Reverb
Amp modelling & Multi Effects
TUNER
HALF SPEEDREVERSE
Multi Eff ec ts
EXP 2
CTRL/TAP
LOOPER
Pream p
EXP
RECORD
DUB
STOP
CLEAR
04
Setup and Operation
3. Ensure the power switch is set to the OFF position and the STANDBY
SWITCH is set to the STANDBY position. Connect your TUBE ENGINE
to your AC mains supply using a 3 pronged AC power chord.
4. Put the power switch in the ON position and wait for at
least 30 seconds for the tubes to warm up. This will help to
extend tube life. Standby can also be used to keep the
tubes warm when taking a break.
30 sec on ds
5.Put the STANDBY SWITCH in the ON position to operate the
amplifier. Adjust the HI/LOW SWITCH, VOLUME and PRESENCE
controls to your liking.
05
Front Panel
01 02 03 04 05 06
1. INPUT
Connect your audio source to this input
2. HI / LOW SWITCH
Select between high and low input impedance
HI = 1M OHMS
LOW = 220K OHMS
3. MASTER
Adjusts the overall output volume
07
4. PRESENCE
Adjusts the overall upper-mid range brightness
5. STANDBY SWITCH
Leave this switch in “STANDBY” position for 30 seconds after
powering on the amplifier.
Then switch to the “ON” position
6. POWER SWITCH
Toggles AC power to the a mpli fier on /off
Always ensure the STANDBY switch is in the “STANDBY” position
when powering the tube engine ON
7. POWER LED
This LED will illuminate when the TUBE ENGINE is switched on
06
01
Back Panel
03
USE ONLY WITE 25 0V FUSE
02
A B
04
1. AC INPUT
Connect the TUBE ENGINE to your AC power outlet using a 3 pin AC
power chord
2. AC VOLTAGE
Select the correct voltage range for your AC power outlet
3. FUSE
Power protection fuse
110V-120V = T1A
220V-240V = T500mA
4. SPEAKER OUT
Always connect a speaker or load box of the correct impedance to
your TUBE ENGINE using a professional unbalanced speaker cable
before powering on.
TUBE ENGINE has 3 different speaker output jacks which are
separated into 2 output sections
A – Connec t 1 x 8 speaker load t o either of t hese two outpu ts
Conne ct 2 x 16 speaker lo ads to each o f these two outp uts
B – Conne ct 1 x 16 speaker lo ad to this ou tput
DO NOT use both of these output sections simultaneously
07
Specifications
Power O u tput:
Pream p Tube :
Power Tube：
Power Requiremen t s：
Di m e nsions:
Weight:
Ac c e ssories:
20Watts
12AT7（ECC81）X 1
12AX7（ECC83） x 1
El84 （6BQ5）X 2
100~120V 50/60Hz
FUSE: T1AL/250V
220~240V 50/60Hz
FUSE: T0.5AL/250V
335mm (D) x 203mm (W) x 91mm (H)
5.252Kg
AC Power Cord, Owner ’s Manual,
Rack mounting lugs
08
MOOER AUDIO CO.,LTD
Shenzhen, China
www.mooeraudio.com
Part No: 203050155 6
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