thomann Harley Benton Mighty-15TH User manual

Mighty-15TH
guitar amp head
user manual

Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
13.10.2020, ID: 484306 (V2)

Table of contents
1 General information................................................................................................................................. 4
1.1 Further information........................................................................................................................... 5
1.2 Notational conventions.................................................................................................................... 6
1.3 Symbols and signal words............................................................................................................... 6
2 Safety instructions..................................................................................................................................... 8
3 Features....................................................................................................................................................... 13
4 Installation and starting up................................................................................................................ 14
5 Connections and controls................................................................................................................... 15
6 Technical specications....................................................................................................................... 19
7 Plug and connection assignment.................................................................................................... 22
8 Cleaning....................................................................................................................................................... 23
9 Protecting the environment.............................................................................................................. 24
Table of contents
Mighty-15TH
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1 General information
This user manual contains important information on the safe operation of the device. Read and
follow all safety notes and all instructions. Save this manual for future reference. Make sure
that it is available to all persons using this device. If you sell the device to another user, be sure
that they also receive this manual.
Our products and user manuals are subject to a process of continuous development. We there‐
fore reserve the right to make changes without notice. Please refer to the latest version of the
user manual which is ready for download under www.thomann.de.
General information
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1.1 Further information
On our website (www.thomann.de) you will nd lots of further information and details on the
following points:
Download This manual is also available as PDF le for you to download.
Keyword search Use the search function in the electronic version to nd the topics of
interest for you quickly.
Online guides Our online guides provide detailed information on technical basics
and terms.
Personal consultation For personal consultation please contact our technical hotline.
Service If you have any problems with the device the customer service will
gladly assist you.
General information
Mighty-15TH
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1.2 Notational conventions
This manual uses the following notational conventions:
The letterings for connectors and controls are marked by square brackets and italics.
Examples: [VOLUME] control, [Mono] button.
1.3 Symbols and signal words
In this section you will nd an overview of the meaning of symbols and signal words that are
used in this manual.
Letterings
General information
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Signal word Meaning
DANGER! This combination of symbol and signal word indicates an
immediate dangerous situation that will result in death or
serious injury if it is not avoided.
CAUTION! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in minor injury if it
is not avoided.
NOTICE! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in material and
environmental damage if it is not avoided.
Warning signs Type of danger
Warning – high-voltage.
Warning – danger zone.
General information
Mighty-15TH
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2 Safety instructions
This device is intended to be used for the amplication of signals from musical instruments
with electromagnetic pickups. Use the device only as described in this user manual. Any other
use or use under other operating conditions is considered to be improper and may result in
personal injury or property damage. No liability will be assumed for damages resulting from
improper use.
This device may be used only by persons with sucient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.
Intended use
Safety instructions
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DANGER!
Danger for children
Ensure that plastic bags, packaging, etc. are disposed of properly and are not
within reach of babies and young children. Choking hazard!
Ensure that children do not detach any small parts (e.g. knobs or the like) from
the unit. They could swallow the pieces and choke!
Never let children unattended use electrical devices.
DANGER!
Electric shock caused by high voltages inside
Within the device there are areas where high voltages may be present. Never
remove any covers.
There are no user-serviceable parts inside.
Do not use the device if covers, protectors or optical components are missing or
damaged.
Safety
Safety instructions
Mighty-15TH
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DANGER!
Electric shock caused by short-circuit
Always use proper ready-made insulated mains cabling (power cord) with a pro‐
tective contact plug. Do not modify the mains cable or the plug. Failure to do so
could result in electric shock/death or re. If in doubt, seek advice from a regis‐
tered electrician.
CAUTION!
Possible hearing damage
With loudspeakers connected, the device can produce volume levels that may
cause temporary or permanent hearing impairment. Over an extended period of
time, even levels that seem to be uncritical can cause hearing damage.
Do not operate the device permanently at a high volume level. Decrease the
volume level immediately if you experience ringing in your ears or hearing
impairment. If this is not possible, keep a bigger distance to the speaker or use
sucient ear protectors.
Safety instructions
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NOTICE!
Risk of re
Do not block areas of ventilation. Do not install the device near any direct heat
source. Keep the device away from naked ames.
NOTICE!
Operating conditions
This device has been designed for indoor use only. To prevent damage, never
expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and
strong vibrations.
Safety instructions
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NOTICE!
Power supply
Before connecting the device, ensure that the input voltage (AC outlet) matches
the voltage rating of the device and that the AC outlet is protected by a residual
current circuit breaker. Failure to do so could result in damage to the device and
possibly injure the user.
Unplug the device before electrical storms occur and when it is unused for long
periods of time to reduce the risk of electric shock or re.
NOTICE!
Possible damage due to installation of a wrong fuse
The use of dierent types of fuses can cause serious damage to the unit. Fire
hazard!
Only fuses of the same type may be used.
Safety instructions
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3 Features
Special features of the device:
n15 watt tube amp head for electric guitar
nClass A circuit with switchable output power
n1 channel
nPower 15 W
nReducible to 7 W
n2 × 12AX7 preamp tube
n2 × EL84 power tube
n1 × 6E2 indicator tube
nControls for gain, bass, mids, treble and volume
nLoudspeaker outputs for 8 and 16 Ω
nEects loop
nBoost switch w/footswitch option
nRobust metal housing
Features
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4 Installation and starting up
Unpack and check carefully there is no transportation damage before using the unit. Keep the
equipment packaging. To fully protect the product against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.
Create all connections while the device is o. Use the shortest possible high-quality cables for
all connections. Take care when running the cables to prevent tripping hazards.
Installation and starting up
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5 Connections and controls
Connections and controls
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1[INPUT]
1/4" jack socket to connect your instrument
2[BOOST]
Boost switch
3[GAIN]
Gain control for the overall gain and overdrive level
4[BASS]
Control for boosting / attenuating the low frequencies
5[MIDDLE]
Control for boosting / attenuating the mid frequencies
6[TREBLE]
Control for boosting / attenuating the high frequencies
7[VOLUME]
Volume control
Connections and controls
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8[STD] [7W] [15W]
Toggle switch for selecting output power and standby
[STD]: Standby
[7W]: Power reducer to 7 W
[15W]: Power 15 W
9[POWER]
Mains switch. Turns the device on and o.
10 [FS BOOST]
Connection for foot switch to switch the boost on / o
11 [SEND]
1/4" jack output of the serial eects loop for connecting sound processors such as compressors, etc. The connection can
also be used as a line output, since the internal signal path is interrupted only by plugging a plug into the [RETURN]input.
The SEND signal is tapped behind the EQ.
12 [RETURN]
1/4" jack input of the eects loop for returning the processed signal
13 [2x16 Ω]
Output for connecting speaker boxes with 2 × 16 Ω impedance
Connections and controls
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14 [1x16 Ω]
Output for connecting speaker boxes with 16 Ω impedance
15 [1x8 Ω]
Output for connecting speaker boxes with 8 Ω impedance
16 High voltage fuse
17 IEC chassis plug for connecting the mains cable with fuse holder
The amplier can operate a pair of 16 Ω speakers and combine them into an 8 Ω load, or you
can operate a single 8 Ω speaker by connecting it to the output jacks labelled 1x8 Ω or 2x16 Ω.
Connections and controls
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6 Technical specications
Speaker Preamp: 2 × 12AX7
Power amp: 2 × EL84
Indicator tube: 1 × 6E2
Amp class A
Output power max. 15 W @ 8 or 16 Ω
Input connections Voltage supply IEC chassis plug C14
Instrument 1/4" jack socket
Eects loop 1/4" jack socket
Output connections Speaker 8 Ω
16 Ω
Eects loop 1/4" jack socket
Foot switch 1/4" jack socket
Technical specications
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Operating supply voltage AC 230 V 50/60 Hz
Fuse 5 mm × 20 mm, 1 A, 250 V, slow-blow
High voltage fuse 5 mm × 20 mm, 315 mA, 250 V, slow-blow
Dimensions (W × H × D) 330 mm × 162 mm × 146 mm
Weight 5.9 kg
Ambient conditions Temperature range 0 °C…40 °C
Relative humidity 50 %, non-condensing
Technical specications
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