Mighty-15TH - Guitar amplifier Harley Benton - Free user manual and instructions

Product Type	Guitar Amplifier
Brand	Harley Benton
Model	Mighty-15TH
Amplifier Type	Solid State Combo
Power Output	15 Watts RMS
Speaker	1x 8\" (20 cm) Custom Speaker
Controls	Gain, Volume, Treble, Middle, Bass, Reverb
Inputs	1x 1/4\" Instrument Input
Outputs	1x 1/4\" Headphone Output, 1x 1/4\" Line Out
Dimensions (W x H x D)	35 x 30 x 20 cm (13.8 x 11.8 x 7.9 in)
Weight	6.5 kg (14.3 lbs)
Power Supply	AC 230V/50Hz (EU) or 120V/60Hz (US)
Cooling	Passive, no fan
Reverb Type	Digital Spring Simulation
Footswitch Input	Not available
Recommended Use	Practice, Home Recording, Small Gigs
Cleaning Instructions	Wipe with dry cloth. Do not use solvents or abrasives.
Safety Features	Overload protection, thermal shutdown
Spare Parts Available	Speaker, knobs, input jacks (contact manufacturer)
Repairability	Repairable by qualified technician; schematics available on request

Frequently Asked Questions - Mighty-15TH Harley Benton

How do I connect my guitar to the Mighty-15TH?

Plug your guitar into the 1/4" instrument input on the front panel using a standard guitar cable. Ensure the amplifier is turned off or volume at zero before connecting.

Can I use the Mighty-15TH with headphones?

Yes, connect headphones to the 1/4" headphone output. This automatically mutes the internal speaker, allowing silent practice.

Is this amplifier suitable for bass guitar?

The Mighty-15TH is designed for electric guitar. Using a bass can damage the speaker due to low frequencies. It is not recommended.

How do I clean the amplifier?

Unplug the amplifier and use a soft, dry cloth to wipe the exterior. Do not use cleaners, solvents, or water.

What is the power consumption?

The amplifier consumes approximately 30W at full output. It uses a standard IEC power cable.

Can I use it with an effects pedal?

Yes, connect your effects pedal between the guitar and the amplifier input. The amp has a clean input which works well with pedals.

Does the amp have a line out for recording?

Yes, it has a 1/4" line output that can be connected to an audio interface or mixer for recording.

What is the warranty period?

Harley Benton products typically come with a 2-year warranty. Keep your receipt for warranty claims.

How do I replace the speaker?

Unplug the amp, remove the back panel, disconnect the speaker wires, and replace with a compatible 8-ohm speaker. Ensure power is off.

What should I do if the amplifier overheats?

Turn off the amplifier immediately and let it cool down. Ensure ventilation around the amp is not blocked. If problem persists, contact support.

USER MANUAL Mighty-15TH Harley Benton

Black-and-white illustration of a Mighty 15TH radio mixer with visible branding and control knobs (no readable text or symbols beyond branding)

Harley Benton

Mighty-15TH

guitar amp head

Musikhaus Thomann

Thomann GmbH

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 specifications.... 19
7 Plug and connection assignment.... 22
8 Cleaning.... 23
9 Protecting the environment.... 24

Mighty-15TH

th·mann MUSIC IS OUR PASSION

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 therefore 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.

1.1 Further information

On our website (www.thomann.de) you will find lots of further information and details on the following points:

Download This manual is also available as PDF file for you to download.
Keyword search	Use the search function in the electronic version to find 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.

Mighty-15TH

1.2 Notational conventions

This manual uses the following notational conventions:

Letterings

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 find an overview of the meaning of symbols and signal words that are used in this manual.

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 possible dangerous situation that can result in minor injury if it is not avoided.
NOTICE! This combination of symbol and signal word indicates a possible 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.

Mighty-15TH

th·mann MUSIC IS OUR PASSION

2 Safety instructions

Intended use

This device is intended to be used for the amplification 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 sufficient 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.

Safety

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.

Mighty-15TH

DANGER!

Electric shock caused by short-circuit

Always use proper ready-made insulated mains cabling (power cord) with a protective contact plug. Do not modify the mains cable or the plug. Failure to do so could result in electric shock/death or fire. If in doubt, seek advice from a registered 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 sufficient ear protectors.

NOTICE!

Risk of fire

Do not block areas of ventilation. Do not install the device near any direct heat source. Keep the device away from naked flames.

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.

Mighty-15TH

th·mann MUSIC IS OUR PASSION

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 fire.

NOTICE!

Possible damage due to installation of a wrong fuse

The use of different types of fuses can cause serious damage to the unit. Fire hazard!

Only fuses of the same type may be used.

3 Features

Special features of the device:

■ 15 watt tube amp head for electric guitar
■ Class A circuit with switchable output power
1 channel
Power 15 W
■ Reducible to 7 W
2 × 12AX7 preamp tube
2 × EL84 power tube
■ 1 × 6E2 indicator tube
■ Controls for gain, bass, mids, treble and volume
■ Loudspeaker outputs for 8 and 16 Ω
Effects loop
■ Boost switch w/footswitch option
■ Robust metal housing

Mighty-15TH

th·mann MUSIC IS OUR PASSION

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 off. Use the shortest possible high-quality cables for all connections. Take care when running the cables to prevent tripping hazards.

5 Connections and controls

Mighty-15TH

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
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 off.
10 [FS BOOST] Connection for foot switch to switch the boost on / off
11 [SEND] 1/4" jack output of the serial effects 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 effects loop for returning the processed signal
13 [2x16Ω] Output for connecting speaker boxes with 2 × 16 Ω impedance

Mighty-15TH

14 [1×16Ω]

Output for connecting speaker boxes with 16 Ω impedance

15 [1x8Ω]

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 amplifier 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.

6 Technical specifications

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
	Effects loop 1/4" jack socket
Output connections Speaker 8 Ω
		16 Ω
	Effects loop 1/4" jack socket
	Foot switch 1/4" jack socket

Mighty-15TH

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

Further information

Power rating 15 W
Power tubes EL84
Channels 1
Reverb No
Foot switch Yes

Mighty-15TH

7 Plug and connection assignment

Introduction

This chapter will help you select the right cables and plugs to connect your valuable equipment in such a way that a perfect sound experience is ensured.

Please note these advices, because especially in 'Sound & Light' caution is indicated: Even if a plug fits into the socket, an incorrect connection may result in a destroyed power amp, a short circuit or 'just' in poor transmission quality!

1/4" TS phone plug (mono, unbalanced)

1 Signal

2 Ground, shielding

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guitar amp head

8 Cleaning

Device components

Clean the device components that are accessible from the outside regularly. The cleaning frequency depends on the operating environment: damp, smoky or particularly dirty environments can cause greater accumulation of dirt on the device components.

■ Clean with a dry soft cloth.
■ Stubborn dirt can be removed with a slightly dampened cloth.
■ Never use solvents or alcohol for cleaning.

Mighty-15TH

th·mann MUSIC IS OUR PASSION

9 Protecting the environment

Disposal of the packaging material

For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling.

Ensure that plastic bags, packaging, etc. are properly disposed of.

Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling. Please follow the notes and markings on the packaging.

Disposal of your old device

This product is subject to the European Waste Electrical and Electronic Equipment Directive (WEEE) in its currently valid version. Do not dispose with your normal household waste.

Dispose of this device through an approved waste disposal firm or through your local waste facility. When discarding the device, comply with the rules and regulations that apply in your country. If in doubt, consult your local waste disposal facility.

Notes

Mighty-15TH

th·mann MUSIC IS OUR PASSION

Notes

th·mann MUSIC IS OUR PASSION

guitar amp head

Solid olive green background with no visible text, symbols, or patterns