thomann Harley Benton HB-80B User Manual

HB-80B

bass combo

user manual

Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [e-mail]
Internet: www.thomann.de

24.08.2017, ID: 417214 (V2)

Table of contents

1 General notes............................................................................................................................................... 4

2 Safety instructions..................................................................................................................................... 6

3 Features....................................................................................................................................................... 11

4 Installation and starting up................................................................................................................ 12

5 Connections and controls................................................................................................................... 13

6 Technical specifications....................................................................................................................... 19

7 Plug and connection assignment.................................................................................................... 20

8 Protecting the environment.............................................................................................................. 23

Table of contents

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1 General notes

This user manual contains important information on 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, include the manual for
the next owner.

Our products are subject to a process of continuous development. We therefore reserve the
right to make changes without notice.

This section provides an overview of the symbols and signal words used in this user manual.Symbols and signal words

General notes

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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 notes

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2 Safety instructions

This device is intended to be used for amplification and playback of signals from musical
instruments with electromagnetic pickups. Any other use or use under other operating condi‐
tions 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.

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.

Intended use

Safety

Safety instructions

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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.

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 fire. If in doubt, seek advice from a regis‐
tered electrician.

Safety instructions

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CAUTION!
Possible hearing damage

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.

Decrease the volume level immediately if you experience ringing in your ears or
hearing impairment. If this is not possible, keep a greater distance or use suffi‐
cient ear protectors.

CAUTION!
Risk of injury due to heavy weight

Due to the heavy weight of the device, at least two persons are required for trans‐
port and installation.

Safety instructions

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NOTICE!
Risk of fire

Do not cover the device nor any ventilation slots. Do not place 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.

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 fire.

Safety instructions

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3 Features

Special features of the device

n Output power

– 80 watt @ 4 Ω (external speaker)
– 40 watt @ 8 Ω (internal speaker)

n 1 × 12" Celestion speaker
n Inputs

– Instrument
– Effects loop
– Foot switch

n Outputs

– Line
– External speaker box

n Standby function

Features

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4 Installation and starting up

Unpack and carefully check that there is no transportation damage before using the unit. Keep
the equipment packaging. To fully protect the device 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.

NOTICE!
Possible property damage by magnetic fields

Loudspeakers produce a static magnetic field. Therefore, maintain an appropriate
distance to devices that can be adversely affected or damaged by an external
magnetic field.

Installation and starting up

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5 Connections and controls

Front panel

Connections and controls

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1 [INPUT]

1/4" phone socket for instrument connection.
You can also connect other active signal sources like CD or MP3 players, keyboards, mixers etc. to this input.

2 [GAIN]

Control to adjust the signals preamp gain.

3 [CLIP]

Indicator LED (blue). This LED lights up when the compressor is active.

4 [COMP]

Pressure switch for enabling the built-in compressor.

5 [BOOST]

Control for boosting the low frequencies.

6 [BASS]

Control to adjust the low frequencies:

Connections and controls

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7 [MIDDLE FREQUENCY]

Control for boosting/cutting the middle frequencies of 200 Hz … 2 kHz.

8 [MIDDLE LEVEL]

Control to adjust the middle frequencies.

9 [TREBLE]

Control to adjust the high frequencies.

10 [VOLUME]

Volume control.

11 [HORN]

Turns the horn speaker on or off.
12 3.5 mm input socket to connect an active signal source like MP3 or CD players.
13 3.5 mm output socket to connect headphones. Connecting headphones automatically mutes the built-in speaker.
14 [D.I. OUT]

Balanced Direct Out output to connect a D.I. Box, mixing console or recording device.

Connections and controls

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15 Standby display

If there is no signal [INPUT] at the INPUT jack for 30 minutes, the device will automatically enter standby mode (LED

green). As soon as the [INPUT] jack receives a signal again, the device automatically switches back to normal mode

(LED red).
16 [POWER]

Main switch to turn the device on and off.

Connections and controls

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Rear panel

Connections and controls

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17 Mains chassis plug with fuse holder.
18 [EXTERNAL SPEAKER]

1/4" output socket to connect an external speaker box (recommended impedance: 8 Ω). The internal speaker will not

be disconnected when using this socket.
19 [FX SEND]

1/4" output socket to feed the signal to an external effects device.
20 [FX RETURN]

1/4" input socket to feed the signal to an external effects device.

Connections and controls

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6 Technical specifications

Output power 80 W @ 4 Ω (external speaker)

40 W @ 8 Ω (internal speaker)
Frequency response 50 Hz…8 kHz
THD 0.5 %
Signal-to-noise ratio 75 dB
Input impedance 220 kΩ
Operating voltage max. 1 V (RMS)
Power consumption max. 100 W
Operating supply voltage

AC 230 V 50 Hz
Dimensions (W × H × D) 510 mm 510 mm × 354 mm
Weight 21 kg

Technical specifications

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7 Plug and connection assignment

This chapter will help you select the right cables and plugs to connect your valuable equip‐
ment 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!

Unbalanced transmission is mainly used in semi-professional environment and in hifi use.
Instrument cables with two conductors (one core plus shielding) are typical representatives of
the unbalanced transmission. One conductor is ground and shielding while the signal is trans‐
mitted through the core.

Unbalanced transmission is susceptible to electromagnetic interference, especially at low
levels, such as microphone signals and when using long cables.

In a professional environment, therefore, the balanced transmission is preferred, because this
enables an undisturbed transmission of signals over long distances. In addition to the conduc‐
tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers
the signal, but phase-shifted by 180°.

Introduction

Balanced and unbalanced trans‐
mission

Plug and connection assignment

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Since the interference affects both cores equally, by subtracting the phase-shifted signals, the
interfering signal is completely neutralized. The result is a pure signal without any noise inter‐
ference.

1 Signal
2 Ground, shielding

1 Signal (in phase, +)
2 Signal (out of phase, –)
3 Ground

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

1/4" TRS phone plug (mono, bal‐
anced)

Plug and connection assignment

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1 Signal (left)
2 Signal (right)
3 Ground, shielding

1 Ground, shielding
2 Signal (in phase, +)
3 Signal (out of phase, –)

Three-pole 1/8" mini phone jack
(stereo, unbalanced)

XLR plug (balanced)

Plug and connection assignment

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8 Protecting the environment

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.

This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE). 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.

Disposal of the packaging mate‐
rial

Disposal of your old device

Protecting the environment

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Notes

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Notes

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Notes

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Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de