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thomann 497726 Скачать руководство пользователя страница 19

11

[POWER]

IEC chassis plug for mains connection with fuse holder

12

[D.I.]

Balanced direct-output with MIC level for connection to a mixer, directly to a PA system or for recording

13

[SPEAKER OUT]

Speakon speaker output for connecting suitable speaker boxes. The overall impedance of the connected load must

not fall below 4 Ω.

14 Housing fan

15

[PRE/POST]

This switch determines where the DI signal is tapped. In

[PRE]

position, the signal is tapped before tone control and

compressor, in

[POST]

position behind it.

Connections and operating elements

Block-300B

19

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Содержание 497726

Страница 1: ...Block 300B bass head user manual ...

Страница 2: ...Musikhaus Thomann Thomann GmbH Hans Thomann Straße 1 96138 Burgebrach Germany Telephone 49 0 9546 9223 0 E mail info thomann de Internet www thomann de 19 01 2021 ID 497726 ...

Страница 3: ...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 operating elements 15 6 Technical specifications 21 7 Plug and connection assignment 24 8 Protecting the environment 27 Table of contents Block 300B 3 ...

Страница 4: ...tions 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 Our products are subject to a process of continuous development Thus they are subject to change General information bass head 4 ...

Страница 5: ...ord 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 General information Blo...

Страница 6: ...gs 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 Letterings General information bass head 6 ...

Страница 7: ...ination 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 information Block 300B 7 ...

Страница 8: ...ered 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...

Страница 9: ... 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 Safety Saf...

Страница 10: ...ce from a regis tered 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 distan...

Страница 11: ...irect 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 Block 300B 11 ...

Страница 12: ...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 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 direc...

Страница 13: ...n n Output power 300 watt 4 Ω n Class D ICE power amp n 5 band equalizer n D I output with pre post lift ground switch n Input sensitivity switchable for active or passive basses n Line input with volume control for rehearsing n Headphones output n Gigbag optionally available item no 194575 Features Block 300B 13 ...

Страница 14: ...t 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 Installation and starting up bass head 14 ...

Страница 15: ...5 Connections and operating elements Front panel Connections and operating elements Block 300B 15 ...

Страница 16: ...he device is turned on It lights up red when the signal is clipping Then turn the INPUT control counter clockwise until the LED turns green again 3 BASS LO MID MIDDLE HI MID TREBLE Controls for raising or attenuating the bass lower mids mids upper mids treble 4 OUTPUT Master volume control 5 3 5 mm jack output to connect head phones 6 3 5 mm jack input for connecting a line level player e g MP3 pl...

Страница 17: ...is switch should be in the HI position not pressed otherwise the input level is not sufficient to fully drive the amplifier When using active instru ments this switch should be in the LOW position pressed otherwise clipping and thus a preamp overload can easily occur resulting in very disturbing sounding distortions 10 IN 1 4 jack socket to connect an electric bass Connections and operating elemen...

Страница 18: ...Rear panel Connections and operating elements bass head 18 ...

Страница 19: ...ng 13 SPEAKER OUT Speakon speaker output for connecting suitable speaker boxes The overall impedance of the connected load must not fall below 4 Ω 14 Housing fan 15 PRE POST This switch determines where the DI signal is tapped In PRE position the signal is tapped before tone control and compressor in POST position behind it Connections and operating elements Block 300B 19 ...

Страница 20: ...ion released the device ground is disconnected This can possibly eliminate noise caused by ground loops that may occur when connecting the device to other grounded equipment In GND position pressed the device ground is connected 17 Mains switch to turn the device on and off Connections and operating elements bass head 20 ...

Страница 21: ...ne 60 kΩ Output impedance D I 470 Ω balanced Frequency bands Bass 50 Hz 10 dB Lower mids 180 Hz 10 dB Mids 660 Hz 10 dB Upper mids 3 kHz 10 dB Treble 12 5 kHz 10 dB Output power Speaker max 300 W 4 Ω minimum load Signal to noise ratio 80 dB A weighted Technical specifications Block 300B 21 ...

Страница 22: ... 50 60 Hz Fuse 5 mm 20 mm 4 A 250 V slow blow Dimensions W H D 200 mm 80 mm 200 mm Weight 1 55 kg Ambient conditions Temperature range 0 C 40 C Relative humidity 50 non condensing Gigbag Optional item no 194575 Compressor No Limiter No Further information Technical specifications bass head 22 ...

Страница 23: ...Effects processor No External effects loop No Rack format No Technical specifications Block 300B 23 ...

Страница 24: ...ductors 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 pr...

Страница 25: ... 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 Block 300B 25 ...

Страница 26: ...ght 3 Ground shielding 1 Ground shielding 2 Signal in phase 3 Signal out of phase 4 Shielding on plug housing option Three pole 1 8 mini phone jack stereo unbalanced XLR plug balanced Plug and connection assignment bass head 26 ...

Страница 27: ... the notes and markings on the packaging 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...

Страница 28: ...Notes bass head 28 ...

Страница 29: ...Notes Block 300B 29 ...

Страница 30: ...Notes bass head 30 ...

Страница 31: ......

Страница 32: ...Musikhaus Thomann Hans Thomann Straße 1 96138 Burgebrach Germany www thomann de ...

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