ALLNIC AUDIO L-4000 Owner'S Manual Download Page 7

7

inputs are RCA type single-ended connections. None of the 

switch; phase is either normal or inverted one hundred 

percent, depending on the switch position. On initial 

connection, set the switch to normal. Depending on the 

phase your sources output and their facilities with regard to 

phase, you may want to switch to inverted phase 

sometimes. Phase issues generally will result in lack of bass 

and/or focus of the stereo image (Please see Figure 3).

F.

REMOTE CONTROL

The remote control provides the ability to remotely:

Power the L-4000 on and off (it is a “toggle” type 

switch) using the button labeled “POWER”.

Select the line source input using either the 

numbered buttons or the up and down arrow 

buttons above and below the CHANNEL label (Please 

see Figure 5).

Control the volume level using the up (louder) and 

down (quieter) arrow buttons above and below the 

VOLUME label.

Mute the volume using the button labeled MUTE, 

located between the CHANNEL and VOLUME arrow 

buttons. Depressing this MUTE button will run the 

volume control down to zero. To raise the volume 

again after muting, press the MUTE button to take 

the volume level to where it was prior to muting.

INITIAL POWER-ON

Once you have your L-4000 in place and all connections 

have been made to your sources and amplifier(s) and the 

power cord is installed and plugged into an AC receptacle, 

you are ready to turn on the power for your L-4000. Before 

you power up the L-4000, though, be sure you have:

removed ALL the cushion materials from inside the 

tube chimneys

selected the output connections that you want to use, 

single ended (RCA) or balanced (XLR), on the two 

switches on the back of the phono stage

turned 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 the remote control and synchronize 

with it; this is what accounts for the possible 

necessity of several tries with the rear switch. 

When that operation is successful, the events 

described just above will occur. Unsuccessful 

boot-ups may result in some of the front LED’s 

glowing faintly if the power switch on the front 

panel of the chassis is in the “on” position, but 

this may be ignored.

2)             Be sure you have manually turned the volume 

control on the front panel to the extreme 

counter-clockwise position (minimum volume).

OPERATION

When the Allnic L-4000 has powered up internally and 

you have either depressed the far left hand button 

marked “power” on the front panel, or pressed the 

power button on the remote control, the following will 

happen on the front panel (Please see Figure 5):

The light above the “power” button will 

illuminate.

The meters on the front panel will illuminate.

Any of the five numbered line source lights that 

are depressed will illuminate.

After about forty (40) seconds, the light above 

the “operate”/”mute” button will illuminate. The 

L-4000 has a “soft start” delay for the tubes in 

order to extend tube life.

The Allnic Audio L-4000 is now ready for operation. At 

this point, you can power on your stereo power amplifier 

or mono-blocks. 

To avoid surges to the speakers, it is best to change from 

input to input only with the “operate” button set to mute 

(the light above the button will not be illuminated when 

the button is in the “mute” position).

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 ...

Reviews: