ALLNIC AUDIO L-4000 Owner'S Manual Download Page 10

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WARRANTY

All Allnic Audio amplifier products are warranted against materials and manufacturing defects 

for parts, excluding tubes, and labour for two (2) years from date of purchase. Tubes are 

warranted against materials and manufacturing defects for one (1) year from date of purchase. 

The warranty is transferable for the balance of the original 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 Audio product 

not specifically authorized by Hammertone Audio will void the warranty on the product.

FIGURES

Figure 1 – L-4000 Left Side Panel View

Summary of Contents for L-4000

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

Page 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...

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

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

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

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

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