ALLNIC AUDIO L-5000 DHT Скачать руководство пользователя страница 7

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DO NOT place the unit near a strong light or heat

source.

DO NOT place anything heavy on the unit.

DO NOT allow rubber or vinyl materials to rest on

the unit’s chassis for long periods of time. This

could discolour the metal.

DO place the unit on a shelf or stand that is stable

and not subject to vibration or sudden shock.

DO consider using a high quality power cord and

inter-connects, both inputs and outputs. The L-

5000 is a highly sensitive piece of electronic

equipment designed for neutrality and will output

what you put into it.

DO try to place the L-5000 DHT away from major

sources of RFI and EMI; though well shielded, the L-

5000 DHT will function best away from large power

transformers and other sources of such

interference.

B.

POWER CONNECTION

The L-5000 DHT uses a standard three prong male IEC

connection for AC input. You need to use a power cord with

a female three prong IEC connector at one end.

To the left of the IEC connector (facing the left side of the

unit as in Figure 1), there is a power on-off switch. Leave

this switch in the OFF position – that means the switch is

pressed “down” at the bottom - while you make all initial

connections.

The L-5000 DHT you have purchased is set internally for AC

110/120 volt – 60 HZ operation. There is no way to change

this to another AC setting without return of the unit to the

factory for re-wiring, at the owner’s cost, including

transport both directions.

C.

INPUTS

There are five (5) inputs. Line 1 and Line 2 are balanced

connections (XLR type connectors). The remaining 3 line

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

inputs is intended especially for connection to any

particular device.

NO PHONO STAGE - The L-5000 DHT 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-5000 DHT. You can

connect your phono preamplifier to any of the five inputs,

provided you have the appropriate types of connections or

adaptors.

The L-5000 DHT has been designed and manufactured to

work most synergistically with Allnic Audio phono

preamplifiers, pre-preamplifiers, equalization and power

amplification products.

D.

OUTPUTS

The L-5000 DHT has three pairs of outputs. Two (2)

output pairs are balanced (i.e., separate ground), using

XLR connectors; one (1) pair is unbalanced, using RCA

type connectors.

One pair of the balanced (XLR) outputs is a “Record Out”

(“rec out”). It is a straight pass-through, unaffected by the

L-5000 DHT’s circuitry, and provides no gain.

The other two pairs of outputs are intended for

connection to a power amplifier. On the back panel of the

L-5000 DHT there is a switch to select either the balanced

or single-ended connections. This selection switch is at

the top centre of the rear panel and labeled “unbalanced

output” (see Figure 2). Please set the output selection

switch to the output connection you are using. If you set

the switch to “balanced” (i.e., XLR – switch pushed to the

right, looking from the rear) and then connect your cables

to the RCA outputs (“main out 2”), audible hum will be

introduced.

You may use both the balanced and single-ended RCA

outputs at the same time; for example, if you run one

pair to your stereo amplifier and the other to a powered

subwoofer (or a pair of them). In such a case, set the

output selection switch to unbalanced (RCA – switch

pushed to the left). This will avoid the introduction of

hum.

E.

PHASE SWITCH

On the right hand side of the top deck of the chassis,

there is a phase switch. This switch is a 180 degree phase

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 (See Figure 3).

F.

REMOTE CONTROL

The remote control provides the ability to remotely:

Select the line source input using either the

numbered buttons or the horizontal arrow buttons

Содержание L-5000 DHT

Страница 1: ...ALLNIC AUDIO L 5000 DHT LINE STAGE PREAMPLIFIER OWNER S MANUAL ...

Страница 2: ...by its excellent operation for years to come Please read this entire manual before you connect the L 5000 DHT Line Stage 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 email david hammertoneaudio com Website www hammertoneaudio com Information and specifications for the A...

Страница 3: ...ction Inputs Outputs Phase Switch Remote Control 6 ___________________________________________________________________ INITIAL POWER ON 8 ___________________________________________________________________ OPERATION 8 ___________________________________________________________________ TUBES 9 ___________________________________________________________________ SPECIFICATIONS 9 _____________________...

Страница 4: ...ork applying all he knows was the design of a circuit valve and transformer combination the measured results of which astounded him The purity of its square wave reproduction as perfect as anything he had ever seen from a DHT valve amplification circuit had him questioning what he was seeing Of course he tested and re tested replicated and recorded these results many times before assuring himself ...

Страница 5: ... gm low internal resistance and high 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 5000 DHT has a 120 ohm 120Ω constant output impedance at all frequencies In capacitor coupling C R coupling a cathode follower circuit is usually used to...

Страница 6: ... the unit When the unit is moved from a cold to a warm 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 ...

Страница 7: ...rovided you have the appropriate types of connections or adaptors The L 5000 DHT has been designed and manufactured to work most synergistically with Allnic Audio phono preamplifiers pre preamplifiers equalization and power amplification products D OUTPUTS The L 5000 DHT has three pairs of outputs Two 2 output pairs are balanced i e separate ground using XLR connectors one 1 pair is unbalanced usi...

Страница 8: ...e the meters on the front panel will illuminate the light over the line source button that is depressed will illuminate after about 40 seconds the light over the mute button will illuminate The Allnic Audio L 5000 DHT is now ready for operation At this point you can power on your stereo power amplifier or mono blocks OPERATION From this point on operation is straight forward All functions are cont...

Страница 9: ... STAGE PREAMPLIFIER Inputs Line level 5 pairs Balanced 2 Un balanced RCA 3 Outputs Balanced 2 pair 1 record Unbalanced 1 pair Input Impedance 10kΩ Balanced Unbalanced Frequency Range 20Hz 20kHz FLAT 16Hz 75kHz 3dB Voltage Gain 18dB THD 1kHz Output 0 3V 0 06 Output 1 0V 0 16 S N Ratio 90dB CCIR 1kHz Tubes 3A 110A or lower gain stage equivalents MR0 PT8 or MR0 TS8 x 2 1st gain stage 3A 109B 2 2nd ou...

Страница 10: ...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 repa...

Страница 11: ...11 FIGURES Figure 1 L 5000 DHT Left Side Panel View Figure 2 L 5000 DHT Rear Panel View Figure 3 L 5000 DHT Phase Switch ...

Страница 12: ...12 Figure 4 L 5000 DHT Remote Control Figure 5 L 5000 DHT Front Panel View ...

Страница 13: ...13 Figure 6 L 5000 DHT Internal Top View ...

Страница 14: ...14 52 Magic Drive Kelowna British Columbia Canada V1V 1N2 Direct Telephone 250 862 9037 Fax 250 862 9039 email david hammertoneaudio com Website www hammertoneaudio com ...

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