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Harley Benton Harley Benton GPA-400, User Manual, Page: 20 / 28

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Harley Benton Harley Benton GPA-400 User Manual Download Page 20

6 

Technical specifications

Amp class

D

Input impedance

20 kΩ (balanced)
10 kΩ (unbalanced)

Output power

16 Ω, stereo

2 × 50 W 

8 Ω, stereo

2 × 100 W 

4 Ω, stereo

2 × 200 W 

16 Ω, bridged

200 W

8 Ω, bridged

400 W

Frequency response

20 Hz … 20 kHz

Signal-to-noise ratio

> 90 dB

Total harmonic distortion (THD)

< 0.15 %

Cooling

fanless

Damping factor

> 80

Sensitivity

335 mV

Gain

39.5 dB

Technical specifications

 

20

GPA-400

Stereo Guitar Power Amp

Summary of Contents for Harley Benton GPA-400

Page 1: ...GPA 400 Stereo Guitar Power Amp User Manual...

Page 2: ...Thomann GmbH Hans Thomann Stra e 1 96138 Burgebrach Germany Telephone 49 0 9546 9223 0 Internet www thomann de 01 12 2022 ID 319961 V3...

Page 3: ...ety instructions 9 3 Features 12 4 Installation and starting up 13 4 1 Tips on handling speakers 14 4 2 Additional useful tips 15 5 Connections and operating elements 17 6 Technical specifications 20...

Page 4: ...4 GPA 400 Stereo Guitar Power Amp...

Page 5: ...ilable 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 developme...

Page 6: ...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 pleas...

Page 7: ...f 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...

Page 8: ...Warning signs Type of danger Warning high voltage Warning danger zone General information 8 GPA 400 Stereo Guitar Power Amp...

Page 9: ...e 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...

Page 10: ...stall the device near any direct 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 dev...

Page 11: ...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 NOTIC...

Page 12: ...3 Features n Maximum output power 400 W 8 n Operating modes Bridged Mono Stereo n Volume Resonance and Presence adjustable per channel n Fanless operation Features 12 GPA 400 Stereo Guitar Power Amp...

Page 13: ...pping hazards NOTICE Magnetic fields The device generates strong magnetic fields that can interfere with the function of poorly shielded devices The strongest magnetic fields are directly above and be...

Page 14: ...impedance and power handling of the speakers must match the requirements of the amplifier Always follow the technical specifications of the speakers The overall impedance of the connected loudspeakers...

Page 15: ...ble the output power Only the signal from input CHA is amplified speakers are only connected to the accordingly labelled output Use volume control CHA to adjust the volume On each output of the amplif...

Page 16: ...of the individual impedances This means for example with two speakers with the same impedance In series connection impedance is doubled In parallel connection it s halved Detailed information on this...

Page 17: ...lements POWER ON OFF CHA VOLUME PRESENCE RESONANCE CHB VOLUME PRESENCE RESONANCE GUITAR POWER AMPLIFIER GPA 400 BRIDGE MUTE PEAK SIGNAL SIGNAL PEAK Front panel Connections and operating elements GPA 4...

Page 18: ...BRIDGE indicator LED yellow This LED lights up when the device is operating in bridged mode 8 MUTE switch to mute the device The white indicator LED lights up when the device is muted 9 PEAK indicato...

Page 19: ...ls A and B 15 Mono Bridge Stereo switch to toggle between bridged mono operation via channel A and stereo operation via channels A and B 16 OUTPUTS CHA output sockets to connect a passive speaker box...

Page 20: ...stereo 2 50 W 8 stereo 2 100 W 4 stereo 2 200 W 16 bridged 200 W 8 bridged 400 W Frequency response 20 Hz 20 kHz Signal to noise ratio 90 dB Total harmonic distortion THD 0 15 Cooling fanless Damping...

Page 21: ...perating supply voltage 230 V 50 Hz Fuse 5 mm 20 mm 2 5 A 250 V slow blow Dimensions W H D 482 mm 44 mm 250 mm Weight 3 kg Ambient conditions Temperature range 0 C 40 C Relative humidity 20 80 non con...

Page 22: ...nd 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 u...

Page 23: ...Signal 2 Ground shielding 1 Signal left 2 Signal right 3 Ground 1 4 TS phone plug mono unbalanced 1 4 TRS phone plug stereo unbalanced Plug and connection assignment GPA 400 23 Stereo Guitar Power Am...

Page 24: ...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 unit wit...

Page 25: ...nd 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 w...

Page 26: ...Notes 26 GPA 400 Stereo Guitar Power Amp...

Page 27: ......

Page 28: ...Musikhaus Thomann Hans Thomann Stra e 1 96138 Burgebrach Germany www thomann de...

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