General information General information This manual contains important instructions for the safe operation of the unit. Read and follow the safety instructions and all other instructions. Keep the manual for future reference. Make sure that it is available to all those using the device. If you sell the unit please make sure that the buyer also receives this manual.
General information 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. Use the search function in the electronic version to find the topics of Keyword search interest for you quickly.
General information 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.
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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. HBW-20...
Safety instructions Safety instructions Intended use 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.
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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. HBW-20...
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Safety instructions 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.
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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. HBW-20...
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Safety instructions NOTICE! Possible staining The plasticiser contained in the rubber feet of this product may possibly react with the coating of your parquet, linoleum, laminate or PVC floor and after some time cause permanent dark stains. In case of doubt, do not put the rubber feet directly on the floor, but use felt-pad floor protectors or a carpet.
1 × 8" woofer Controls for input gain and master volume Controls for bass, mids and treble 3-band equalizer Headphone output Robust housing with felt cover, edge protection, rubber feet and metal front grid Fold-out bracket for tilting the combo Standby function HBW-20...
Installation and operation Installation and operation 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.
Components and functions Components and functions Front panel HBW-20...
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Components and functions 1 [INPUT] ¼-inch (6.35-mm) jack socket for the input signal coming from your bass guitar. 2 [GAIN] Input gain control. 3 [BASS], [MIDDLE], [TREBLE] Control to attenuate or increase the frequencies by ±12 dB 4 [MASTER] Overall volume control. Does not affect the signal coming from input AUX IN. 5 [AUX IN] Auxiliary signal input, electronically located behind the equalizer, directly feeding the power stage for connecting a CD player or the like.
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Standby operation. This LED lights up when the device – on activated power save mode – switches to standby mode and turns off when the device is switched back to normal operation. 8 [POWER] Power on/off switch. Switches the device on and off. HBW-20...
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Components and functions Rear panel 9 Panel plug for mains cable with fuse holder. bass combo...
44 W Operating supply voltage 230 V , 50 Hz Fuse 5 mm × 20 mm, 0,5 A, 250 V, slow blow Dimensions (W ×D ×H) 343 mm ×350 mm ×205 mm (15.35in. × 5.31in. × 15.55in.) Weight 6.1 kg HBW-20...
Plug and connection assignment Plug and connection assignment Introduction 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’...
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Plug and connection assignment RCA connection Drawing and table indicate the pin assignment of an RCA plug. Signal Ground, shielding HBW-20...
Cleaning Cleaning Device components Clean the device componetns that are accessible from the outside regularly. The cleaning fre‐ quency depends on the operating environment: damp, smoky or particularly dirty environ‐ ments can cause greater accumulation of dirt on the device components. Clean with a dry soft cloth.
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. HBW-20...
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