ALLNIC AUDIO H-1200 Manuale d'uso - Pagina 5

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

DO NOT subject the unit to knocks and shocks as you

move it around. This advice is meant particularly for

those who may want to place the H-1200 on some

kind of after-market isolation feet or similar devices.

Dropping one side of the H-1200, or the whole unit,

is not a good thing to do.



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, for both inputs and outputs. The H-

1200 is a highly sensitive piece of electronic

equipment designed for neutrality and will output

what you put into it.



DO try to place the H-1200 away from major sources

of RFI and EMI; though well shielded, the H-1200 will

function best away from large power transformers

and other sources of such interference.



DO NOT cover the ventilation slots in the top of the

chassis.

POWER CONNECTION

The H-1200 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. The

IEC AC connection is located on the right side of the rear

panel of the H-1200 (Please refer to Figure 1).

The H-1200 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.

INPUTS

There are two (2) pairs of single-ended (RCA) inputs. Both

pairs are within the rectangular lines closest to the top of

the unit. The top pair of inputs, with an "MC" label

between them and joined by a horizontal line, are the

inputs for a moving coil cartridge. The bottom pair of

inputs, with an "MM" label between them and joined by

a horizontal line, are the inputs for a moving magnet

cartridge.

In the centre of the four RCA connections is a screw type

connector. This connector is the ground connection for a

ground wire from a cartridge and/or turntable.

When you are facing the front of the H-1200, the right

channel input connections are on the extreme right of the

unit, and the left channel input connections directly to

their left, beside the power cord connection.

The H-1200 has been designed and manufactured to

work most synergistically with Allnic Audio preamplifiers,

pre-phono stages and equalization products.

OUTPUTS

The H-1200 is equipped with one pair of single-ended

(RCA) outputs. The right and left channel output

connections are located below the two pairs of input

connections. Again, when you are facing the front of the

H-1200, the output connections are the horizontal pair

closest to the bottom of the unit, with the left channel

output connection on the extreme right of the unit, and

with the left channel output connection directly to its left,

beside the power cord connection.

A NOTE ON PHASE

Phase issues generally will result in lack of bass and/or

focus of the stereo image. You may need to reverse

connections on your cartridge if you are having phase

issues. As is usual in these circumstances, some trial and

error experimentation may be required to find the

correct position. Of course, the entire process is

simplified if your preamplifier has a phase control, as do

the Allnic Audio L-1500 and L-4000 preamplifiers.

IMPEDANCE

In the Specifications at the end of this manual, you will

read that the moving coil (MC) input impedance for the

H-1200 is up to 30 ohms. This value represents the

internal impedance of the cartridge itself, and is at the

high end of what would normally be expected for the

internal impedance of an MC cartridge. It would be

unusual to find a cartridge with internal impedance

greater than that value. In fact, however, the MC step-up