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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

 

 

bass combo

16

Summary of Contents for Harley Benton HB-20B

Page 1: ...HB 20B bass combo user manual...

Page 2: ...Musikhaus Thomann Thomann GmbH Hans Thomann Stra e 1 96138 Burgebrach Germany Telephone 49 0 9546 9223 0 E mail info thomann de Internet www thomann de 24 08 2017 ID 417200 V2...

Page 3: ...es 4 2 Safety instructions 6 3 Features 10 4 Installation and starting up 11 5 Connections and controls 12 6 Technical specifications 15 7 Plug and connection assignment 16 8 Protecting the environmen...

Page 4: ...e 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 r...

Page 5: ...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 s...

Page 6: ...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 responsi...

Page 7: ...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 Do not modify the mains cable or...

Page 8: ...tical 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...

Page 9: ...onnecting 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 r...

Page 10: ...3 Features Special features of the device n Output power 20 watt 4 n 1 8 speaker n 1 instrument inputs n Headphones output n Line output n Standby function Features bass combo 10...

Page 11: ...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 cab...

Page 12: ...5 Connections and controls Front panel Connections and controls bass combo 12...

Page 13: ...ers 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 compr...

Page 14: ...ecting headphones automatically mutes the built in speaker 11 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...

Page 15: ...esponse 70 Hz 10 kHz THD 0 5 Signal to noise ratio 75 dB Input impedance 50 k Operating voltage max 5 V RMS Power consumption max 40 W Operating supply voltage AC 230 V 50 Hz Dimensions W H D 380 mm 3...

Page 16: ...ctors 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...

Page 17: ...e 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 plu...

Page 18: ...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 bass...

Page 19: ...ng 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 wast...

Page 20: ...Notes bass combo 20...

Page 21: ...Notes HB 20B 21...

Page 22: ...Notes bass combo 22...

Page 23: ......

Page 24: ...Musikhaus Thomann Hans Thomann Stra e 1 96138 Burgebrach Germany www thomann de...

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