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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

Ground, shielding

2

Signal (in phase, +)

3

Signal (out of phase, –)

4

Shielding on plug housing (option)

XLR plug (balanced)

Plug and connection assignment

E4-130, E4-250

31

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Содержание tt.amp E4-130

Страница 1: ...E4 130 E4 250 power amplifier user manual...

Страница 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 10 04 2019 ID 348232 348233 V3...

Страница 3: ...s 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 19 6 Technical specifications 25 7 Plug and connection a...

Страница 4: ...t 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 d...

Страница 5: ...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 Pers...

Страница 6: ...or 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 symbol...

Страница 7: ...tion 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 da...

Страница 8: ...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...

Страница 9: ...ice 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 c...

Страница 10: ...impairment Do not operate the device permanently at a high volume level Decrease the volume level immediately if you experience ringing in your ears or hearing impairment NOTICE Risk of fire Do not bl...

Страница 11: ...fications of this user manual Avoid heavy temperature fluctua tions and do not switch the device on immediately after it was exposed to tem perature fluctuations for example after transport at low out...

Страница 12: ...the risk of electric shock or fire NOTICE Magnetic fields The device generates strong magnetic fields that can interfere with the function of poorly shielded devices The strongest magnetic fields are...

Страница 13: ...0 item no 348232 4 130 W 8 4 200 W 4 the t amp E4 250 item no 348233 4 400 W 4 4 250 W 8 n Inputs XLR n Outputs NL4 speakON connectors for speakers n Protection circuits DC short circuit overtemperatu...

Страница 14: ...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 tri...

Страница 15: ...re amplifiers radio transmission systems or tape decks directly above or below the power amplifier When installing the power amplifier into a rack you should place it in the lowest position and furthe...

Страница 16: ...mplified by one channel speakers are connected to both channels the volume for both outputs can be controlled separately Parallel mode Both power amp channels amplify the signal from input A speakers...

Страница 17: ...nected to the accordingly labelled output The controls for channel A and channel B are used to adjust the volume The phase of the second or fourth channel is reversed The speaker must be operated usin...

Страница 18: ...g speakers in parallel the reciprocal value of the total impedance is equal to the sum of the reciprocal values of the individual impedances This means for example with two speakers with the same impe...

Страница 19: ...5 Connections and operating elements Front panel Connections and operating elements E4 130 E4 250 19...

Страница 20: ...t switches back to normal mode and the LED will light up green again 2 CH 1 CH 2 CH 3 CH 4 Volume control for the respective channel 3 PAR Lights up when the respective channel pair is operated in Par...

Страница 21: ...t circuit and turn on the device again 7 PRO Lights under the following conditions n Three to five seconds after switching on or off when the device is in an unstable condition n No speaker connected...

Страница 22: ...Rear panel Connections and operating elements power amplifier 22...

Страница 23: ...sockets as inputs for channels 1 to 4 11 OUTPUT Speaker Twist chassis connectors for speaker outputs 1 2 positive 1 2 negative for channels 1 to 4 12 Selector switch for the operating mode of the res...

Страница 24: ...ion between the earth pin of the device and the signal ground of the device 15 Stand by ON OFF On off switch for standby function If the standby function is enabled the device automatically switches t...

Страница 25: ...eo 4 130 W RMS 4 stereo 4 200 W RMS 8 bridged 2 400 W RMS Frequency response 0 5 dB 20 Hz 20 kHz Signal to noise ratio 94 dB Total harmonic distortion THD 0 05 Crosstalk at rated power 8 1 kHz 64 dB D...

Страница 26: ...30 dB Power consumption 1500 W Operating supply voltage 230 V 50 Hz Dimensions W H D 482 mm 88 mm 408 mm Weight 12 9 kg Ambient conditions Temperature range 0 C 40 C Relative humidity 50 non condensi...

Страница 27: ...RMS 8 bridged 2 800 W RMS Frequency response 0 5 dB 20 Hz 20 kHz Signal to noise ratio 94 dB Total harmonic distortion THD 0 05 Crosstalk at rated power 8 1 kHz 64 dB Damping factor at rated power 8 1...

Страница 28: ...mption 2700 W Operating supply voltage 230 V 50 Hz Dimensions W H D 482 mm 88 mm 408 mm Weight 15 0 kg Ambient conditions Temperature range 0 C 40 C Relative humidity 50 non condensing Technical speci...

Страница 29: ...Channels 4 19 installation height 2 RU 2 stable No DSP crossover No Convection cooling No Further information Technical specifications E4 130 E4 250 29...

Страница 30: ...ors 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 i...

Страница 31: ...ed signals the interfering signal is completely neutralized The result is a pure signal without any noise inter ference 1 Ground shielding 2 Signal in phase 3 Signal out of phase 4 Shielding on plug h...

Страница 32: ...ielding 2 Signal 3 Bridged to pin 1 1 Signal 1 in phase 1 Signal 1 out of phase 2 NC not connected 2 NC not connected XLR plug unbalanced Speaker Twist connector Plug and connection assignment power a...

Страница 33: ...h as dust etc on a reg ular basis Before cleaning switch off the device and disconnect mains operated devices from the mains Only use pH neutral solvent free and non abrasive cleaning agents Clean the...

Страница 34: ...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 hou...

Страница 35: ......

Страница 36: ...Musikhaus Thomann Hans Thomann Stra e 1 96138 Burgebrach Germany www thomann de...

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