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Chapter 6

   General operation 

Chapter 5

   Making connections

› Connect the loudspeakers directly to the amplifier. Never use an earphone adapter or distribu-
tion box. In case of doubt, consult a specialist for further information.

› Make sure that the loudspeakers are correctly polarized, i.e. that plus to plus terminals and mi-
nus to minus terminals correspond.

› The amplifier has been developed for operation with loudspeakers that have an impedance 
rating of 4 to 16 ohms. Never use loudspeakers with a lower impedance rating. Speakers should 
only be connected to these respective outputs. For simultaneous operation of 4 speakers (A+B), 
connect speakers with an impedance of 8 to 16 ohm. 

› Connect the first pair of speakers (SPEAKER A) to the respective terminals.

› Connect the positive (+) terminal of the left speaker to the white speaker terminal marked „L+“. 

› Connect the negative (–) terminal of the left speaker to the black speaker terminal marked „L–”.
 
› Connect the positive (+) terminal of the right speaker to the red speaker terminal marked „R+“. 

› Connect the negative (–) terminal of the right speaker to the black speaker terminal marked 
„R–“. 

› A second pair of speakers (SPEAKER B) can also be connected analogly following this.  

Turning on and playing an audio source

Check that all connections are secure and have been made properly, before turning the 
device on for the first time

› The main switch on the rear panel should be switched to „ON“ first, before pushing the STAND-
BY ON/OFF button on the front panel. 

› Tube technology requires a few seconds to warm up. The word „Ready” will blink on display, 
during this warm-up phase. Your device is ready for operation, once this message disappears 
from display. 

› Rotate the „VOLUME“ control dial completely to the left. 

› Adjust the „TREBLE“, „BASS“ and „BALANCE“ controls to mid-position. 

› Turn the audio source on, for example your CD player. 

› Select the desired sound source by pressing the respective input source button on the device 
or on the remote control (e.g. CD/DVD).

› Select one of the following playback sources: CD/DVD; AUX1/AUX2; Stereo Line IN; Tape/Pho-
no; MD; Tuner (Radio function)

› Each CD/DVD; AUX1/AUX2 and TAPE/PHONO button has a double function. Press these but-
tons to switch back and forth between individual sources.

› Rotate the „VOLUME“ control dial in a clockwise motion to the desired listening level.

› Please note that listening to high volume levels on a continual basis could lead to or cause 
permanent hearing damage. Use and try to maintain a comfortable volume level. Over a certain 
amount of time your hearing will become accustomed to this volume level and sensitivity will 
decrease, after which people regularly tend to increase the volume. This procedure will undou-
btedly lead to hearing loss. This also applies to when using headphones.   

› You can use the „TREBLE“ and „BASS“ controls and/or the „PRESET EQ“ button to change the 
sound. 

› Before turning the device off, rotate the „VOLUME“ control dial completely to the left first and 
then press the „STANDBY ON/OFF“ button to turn the amplifier off.

6

General operation 

Summary of Contents for TubeBooster 3000

Page 1: ...Instruction manual Hi Fi stereo receiver with tube preamplifier ...

Page 2: ...ections 18 Connecting analog end devices 19 Connecting devices to digital connections 19 Connecting speakers 21 Chapter 6 General operation 21 Turning on and playing an audio source 22 Playing MP3 files via USB connection 22 Speaker selection 23 Chapter 7 Radio function 24 Chapter 8 RDS function 25 Chapter 9 Troubleshooting 27 Chapter 10 Maintenance and cleaning 29 Chapter 11 Specifications 29 Tec...

Page 3: ...uideline requirements A declaration of CE conformity has been established for this product Certification has been docu mented and entrusted to the manufacturer The X4 TECH hi fi amplifier TubeBooster 3000 with integrated stereo receiver is intended for the amplification of low level audio signals in home audio systems which are intensified and trans ferred between signal sources and loudspeakers T...

Page 4: ...ompletely cut off the power supply to the device unplug the power plug from the wall outlet Merely turning the device off with the ON OFF button is not sufficient enough Make sure that receptacles are easily accessible 2 Safety information Always pull on the plug s grips and never on the cable to remove from a wall outlet Unplug the device from the power outlet if it is not in use for a longer per...

Page 5: ...ation This instruction manual contains information on how to operate and maintain this device Should a component require maintenance servicing or repairs then please consult a qualified dealer or service technician 1 Standby ON OFF Press to turn the device on off in a standby mode The device can only be completely turned off with the main switch found on the back of the device Turn the device on b...

Page 6: ...MP3 format files found on the inserted USB removable medium 17 Tuning and Press to search for a station frequency manually 18 Stereo Line IN Front panel input jack 3 5 mm jack e g for connecting an MP3 player 19 Balance control Rotate this dial to adjust the balance 20 Bass control Rotate this dial to adjust bass settings 21 Treble control Rotate this dial to adjust treble settings 22 LED indicato...

Page 7: ...d carefully sliding back into place Keep batteries out of children s reach Chapter 3 The device Chapter 3 The device Batteries are hazardous waste and do not belong in household waste Always remove batteries when not in use for longer periods of time Never leave batteries lying around unsupervised These could pose a choking hazard to child ren and pets if swallowed Seek emergency medical care imme...

Page 8: ...tations 9 ST MONO Press this button to switch between stereo and mono operation Chapter 3 The device Chapter 3 The device 10 STATION Use these buttons to select a preset station 11 Pause II Press to pause playback 12 AUTO MANUAL Press this button to switch between a manual search radio mode and automatic search 13 tt Tuning button Use during radio operation for radio frequency adjustments 14 u Pre...

Page 9: ...f the amplifier make sure that you enlarge the distance behind the device to avoid excessive heat build up Never place other amplifiers on top of the tube amplifier Selecting a proper location should be taken into consideration before setting up your device for example the distance to the next power outlet avoiding areas where the device may be exposed to direct sunlight vibration dust heat cold a...

Page 10: ...nections You have the opportunity to connect your CD DVD MD player or game console via the digital inputs as long as your end device has the respective digital output Devices can be connected via audio cable COAX1 COAX2 or optical fiber cable OPT1 and OPT2 Connecting speakers A two core wire connection is required to connect the speakers Isolate all wiring points Ensure that cables can not be dama...

Page 11: ... ON first before pushing the STAND BY ON OFF button on the front panel Tube technology requires a few seconds to warm up The word Ready will blink on display during this warm up phase Your device is ready for operation once this message disappears from display Rotate the VOLUME control dial completely to the left Adjust the TREBLE BASS and BALANCE controls to mid position Turn the audio source on ...

Page 12: ...irs The current status will be shown on display Note A speaker impedance of 8 16 ohm is required for operation with 4 speakers Your tube amplifier X4 TECHTubeBooster is equipped with a radio receiver for FM and AM recep tion and RDS Radio Data System function that can be used to display the current station tuned in to e g NDR1 or WDR 1 Select the input source TUNER on the device or remote control ...

Page 13: ...mote control to the remote sensor and press to operate Remove any objects found between the remote control and the remote sensor Make sure the distance between the remote control and the device does not exceed 8 m Buttons do not function on the device and or remote control Turn the device off and then on again As an alternative turn the device off unplug it from the power outlet and plug in again ...

Page 14: ...t conditions Repairs are only to be carried out by qualified personnel who are familiar with the hazards invol ved and the relevant regulations Transporting or sending the device Please retain the original box and the packaging material in case you need to transport or send the device out for maintenance at a later date Please note that the device should be repacked in the original packaging The b...

Page 15: ...m A or B 8 16 ohm A and B Harmonic distortion at 1 watt 0 003 Frequency response 20 Hz 20 kHz Signal to noise ratio 120 dB Digital In 110 dB Analog In Channel separation 80 dB Antenna inputs FM 75 ohm AM Loop antenna Dimensions W x H x D 430 x 130 x 340 mm Weight 9 6 kg Delivery contents Receiver TubeBooster 3000 Power cable FM AM antenna Infrared remote control 2 x AA batteries Instruction manual...

Page 16: ...es http www x4 tech de We reserve the right to alter specifications and information contained in this manual without notice All brands mentioned are property of X4 TECH or of their respective owners X4 TECH assumes no responsibility or liability for any errors or inaccuracies that may appear in this instruction manual 2009 X4 TECH All Rights Reserved Manufacturer x peer de GmbH Brackestraße 3 3815...

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