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TABLE OF CONTENTS:

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INTRODUCING THE L-4000 LINE STAGE PREAMPLIFIER 4
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WHAT’S IN THE BOX? 5
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SAFETY 5
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CLEANING
Chassis
Connectors 5
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INITIAL SET-UP
Location, Location, Location
Power Connection
Inputs
Outputs
Phase Switch
Remote Control 5
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INITIAL POWER ON 7
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OPERATION 7
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TUBES 8
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SPECIFICATIONS 8
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WARRANTY 10
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FIGURES 10

Please read about

SAFETY

before you attempt to use the L-4000

Preamplifier - we care about our customers and the equipment, and we

want you to enjoy this product for a long time!

Содержание L-4000

Страница 1: ...ALLNIC AUDIO L 4000 LINE STAGE PREAMPLIFIER OWNER S MANUAL ...

Страница 2: ... excellent operation for years to come Please read this entire manual before you connect the L 4000 Preamplifier to the other components of your system and the wall outlet 252 Magic Drive Kelowna British Columbia Canada V1V 1N2 Direct Telephone 250 862 9037 Fax 250 862 9039 Cell 780 991 1960 email david hammertoneaudio com Website www hammertoneaudio com Information and specifications for the Alln...

Страница 3: ...Connection Inputs Outputs Phase Switch Remote Control 5 ___________________________________________________________________ INITIAL POWER ON 7 ___________________________________________________________________ OPERATION 7 ___________________________________________________________________ TUBES 8 ___________________________________________________________________ SPECIFICATIONS 8 ________________...

Страница 4: ...gh mu Constant and low output impedance One of the benefits of transformer coupling is that it facilitates constant low output impedance Low output impedance is critical to the design of a good preamplifier The L 4000 has a 150 ohm 150Ω constant output impedance at all frequencies In capacitor coupling C R coupling a cathode follower circuit is usually used to lower output impedance Unfortunately ...

Страница 5: ...he unit When the unit is moved from a cold to a warm environment allow sufficient time for any condensation to evaporate before plugging the unit into an AC connection Do not attempt any repairs Do not remove the chassis cover without specific authorization from Hammertone Audio See the notes on Location Location Location CLEANING A Chassis and glass Use only a soft lint free cloth dampened slight...

Страница 6: ...e 2 are balanced connections XLR type connectors The remaining 3 line inputs is intended especially for connection to any particular device NO PHONO STAGE The L 4000 is a line stage preamplifier and does NOT have a built in phono preamplifier section You will need a phono preamplifier if you want to use a turntable with the L 4000 You can connect your phono preamplifier to any of the five inputs p...

Страница 7: ...ed the volume down on or muted the L 4000 checked that all your connections are snug PLEASE NOTE CAUTION 1 You may need to depress the power switch on the left side panel of the chassis several times wait 30 seconds or so between each try for the L 4000 to power up internally before you turn on the unit from the front panel or the remote control The boot system inside the unit needs to recognize t...

Страница 8: ... respective channel moving out from between these two parallel lines If the needle has moved to the left of the parallel lines on a meter it means that one or both the E810F tubes for that channel is failing If the needle on either meter moves to the right of the parallel lines it means that one or the other of the voltage regulator tubes 7233 or 6485 for that channel is failing In the case of any...

Страница 9: ...es 7233 no equivalent 2 Voltage Regulator 6485 similar to 6AH6 6AH6WA 6AH6S CV2521 2 Voltage Regulator Fuse 2A 250V Dimensions 430mm 16 9291 inches W 350mm 11 811 inches D 173mm 4 72441 inches H Weight 16 kg 35 3 lbs unpacked Packed shipping weight in original shipping material is 20 kg 44 1 lbs ...

Страница 10: ...l purchaser s warranty period provided as stated below no unauthorized repairs or modifications have been performed on the product Date of purchase is the date indicated on the invoice for the product issued by Hammertone Audio For the warranty to be valid a defective product must be returned to Hammertone Audio for service prior to any unauthorized attempt to repair Any repair work on an Allnic A...

Страница 11: ...11 Figure 2 L 4000 Rear Panel View Figure 3 L 4000 Phase Switch Figure 4 L 4000 Remote Control ...

Страница 12: ...12 Figure 5 L 4000 Front Panel View Figure 6 L 4000 Internal View ...

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