Harley Benton HB-20MFX User manual

HB-20MFX | HB-40MFX
Guitar Combo
User Manual

Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
Internet: www.thomann.de
07.03.2023, ID: 499438, 499441

Table of contents
1 General information................................................................................................................................. 5
1.1 Further information........................................................................................................................... 6
1.2 Notational conventions.................................................................................................................... 6
1.3 Symbols and signal words............................................................................................................... 7
2 Safety instructions..................................................................................................................................... 9
3 Features....................................................................................................................................................... 12
4 Installation and starting up................................................................................................................ 13
5 Connections and controls................................................................................................................... 14
5.1 Parameter matrix.............................................................................................................................. 20
6 Technical specications....................................................................................................................... 21
7 Plug and connection assignment.................................................................................................... 25
8 Protecting the environment.............................................................................................................. 27
Table of contents
HB-20MFX | HB-40MFX 3
Guitar Combo

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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.
1.2 Notational conventions
This manual uses the following notational conventions:
General information
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Guitar Combo

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.
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.
Letterings
General information
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Warning signs Type of danger
Warning – high-voltage.
Warning – danger zone.
General information
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2 Safety instructions
This device is intended to be used for amplication 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 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.
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.
Intended use
Safety instructions
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DANGER!
Electric shock caused by short-circuit
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
registered electrician.
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 sucient ear protectors.
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. Only operate the device within the ambient conditions specied in the chapter
‘Technical specications’ of this user manual. Avoid heavy temperature uctuations and do not switch the device on immediately
after it was exposed to temperature uctuations (for example after transport at low outside temperatures). Dust and dirt inside can
damage the unit. When operated in harmful ambient conditions (dust, smoke, nicotine, fog, etc.), the unit should be maintained by
qualied service personnel at regular intervals to prevent overheating and other malfunction.
Safety instructions
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NOTICE!
Power supply
If the mains cable plug is used as a disconnecting device, the disconnecting device must be easily accessible. The voltage selector
sets the operating voltage. Before switching on 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 staining
The plasticiser contained in the rubber feet of this product may possibly react with the coating of your surface and after some time
cause permanent dark stains. In case of doubt, do not put the rubber feet directly on the surface and use a suitable underlay if neces‐
sary, i.e. felt pads or similar.
Safety instructions
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3 Features
Special features of the device:
n20 watt output power (item # 499438) or
40 watt output power (item # 499441)
nClass AB
n1 × 8" speaker (item # 499438) or
1 × 10" speaker (item # 499441)
n12 mm wooden housing
n5 amp voicings, incl. Clean, Crunch, Lead, OD1 and OD2
n4 fully programmable presets
nMulti-FX DSP with 5 digital eects: Reverb, Delay, Chorus, Tremolo and Phaser
nControls for gain, volume, treble, mids, bass, FX and master volume
nMini jack connections for AUX / line input and headphone output
nBluetooth audio receiver for playing backing tracks
nDigital guitar tuner with LED display
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.
NOTICE!
Possible property damage by magnetic elds
Loudspeakers produce a static magnetic eld. Therefore, maintain an appropriate
distance to devices that can be adversely aected or damaged by an external
magnetic eld.
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" jack socket to connect your instrument.
2[TUNER]
Button to turn the built-in tuner on or o. When switched on, the display above the button shows the note value of
individually played notes. If the red and yellow LEDs light up to the left of the display, the string is tuned way too low.
If only the yellow LED lights up, the string is tuned a little too low. If the red and yellow LEDs light up to the right of
the display, the string is tuned way too high. If only the yellow LED lights up, the string is tuned a little too high.
When the green LED lights up, the tuning of the string corresponds exactly to the displayed note value.
3[VOICE]
Button to activate the voicings CLN (clean), CRH (crunch), LEAD, OD1 (overdrive 1) and OD2 (overdrive 2). The LEDs to
the right of the button indicate the activated voicing.
4[GAIN]
Input gain control.
5[VOLUME]
Control to adjust the volume of the instrument channel. In combination with eects, [VOLUME] can be considered as
a dry signal level control.
6[TREBLE]
Treble control.
7[MIDDLE]
Mids control.
Connections and controls
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8[BASS]
Bass control.
9[EFX]
Button to activate the eects REV (reverb), DLY, (delay), CRS (chorus), TRM (tremolo) and PHR (phaser). The LEDs to
the left of the button indicate the activated eect.
After activating the desired eect, 3 parameters can be set. To do so, hold [EFX] down until the LED in the button
lights up red and thereby indicates that the rst parameter can be set with [PARAM]. If you press [EFX] again, this LED
light up green and thereby indicates that the second parameter can be set with [PARAM]. If you press [EFX] again, this
LED light up blue and thereby indicates that the third parameter can be set with [PARAM]. Press [EFX] again to re-
select the previous parameters. To exit these settings, hold [EFX] down until the LED in the button turns o.
Please refer to the parameter matrix below for the details.
10 [PARAM]
Eects level and control for various settings of the selected eects (see [EFX]). The eects are in parallel with dry
signal. Therefore [PARAM] can be considered as a wet signal level control.
11 [PAIR]
Button for pairing or decoupling a Bluetooth device. Press the button. The blue LED in the button ashes, indicating
that the device is ready for pairing. When establishing the connection via the Bluetooth device, search for “HB-20MFX
GiT Amp” or “HB-40MFX GiT Amp”. When paired, the LED lights up constantly and you can play audio les via the
device.
12 [MASTER]
Control to adjust the overall volume.
Connections and controls
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13
AUX input (3.5 mm jack socket) for connecting MP3 or CD players as well as mobile phones, tablets, etc.
14 [USB]
Mini USB port through which the device can receive digital audio streams. Connect the device to the USB port of a
computer using a suitable cable and select “MRX High Audio” as the audio output device. Of the controllers and but‐
tons described here, only the [MASTER] control aects the USB signal.
15
Headphones output (3.5 mm mini phone socket).
When headphones are connected, the internal loudspeaker and the connection for external loudspeaker boxes are
automatically muted.
Connections and controls
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16 [POWER]
Mains switch. Turns the device on and o.
If the device does not receive any signal for about 25 minutes at the [INPUT] socket, it will automatically turn to
standby mode. The LED to the left of the switch then only glows. To turn the device on again, switch it o briey with
the [POWER] switch and then on again.
17 [CH1~4 | Panel]
The settings for VOICE, GAIN, VOLUME, TREBLE, MIDDLE, BASS, PARAM and EFX can be saved in the memory locations
CH1 ~ 4. This means that four dierent sounds can be called up at the touch of a button.
To save the sound set with the aforementioned controls and buttons, press and hold the button for the desired
memory location for one second. After releasing the button, it ashes briey, indicating that saving has been suc‐
cessful. To activate the sounds stored under 1 – 4, briey press the desired button, the LED of which then changes
from red to green.
If you change one of the parameters mentioned while using a saved sound, the LED of the active memory location
changes to red. The [PANEL] LED changes to green and shows that the sound set with the controls and buttons is
active again. You can also press [PANEL] at any time to switch to the sound set with the knobs and buttons.
Connections and controls
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18 1/4" jack socket to connect external speaker boxes. The total impedance of the
speakers connected here must not fall below 4 Ω. If this connection is used, the
built-in loudspeaker is switched o.
19 Power cord.
Rear panel
Connections and controls
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5.1 Parameter matrix
Here you can see in which colour the [EFX] LED has to light up in order to be able to set the
desired parameters of the respective active eect.
Reverb (REV) Delay (DLY) Chorus (CRS) Tremolo (TRM) Phaser (PHR)
[EFX] LED: Red Reverb duration Delay time Depth Speed Depth
[EFX] LED: Green Tone Echoes speed Intensity Rate
[EFX] LED: Blue Level Level Level Level Level
Connections and controls
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