ALLNIC AUDIO A-2000 Benutzerhandbuch - Seite 7

Blättern Sie online oder laden Sie pdf Benutzerhandbuch für Verstärken ALLNIC AUDIO A-2000 herunter. ALLNIC AUDIO A-2000 13 Seiten. Kt150 push-pull stereo power amplifier
Auch für ALLNIC AUDIO A-2000: Benutzerhandbuch (9 seiten)

Seite drucken

SPEAKER TERMINALS

The A-2000 SE is equipped with two pairs of high-quality speaker terminals, one for each channel. These terminals

are located to the left of the IEC input (facing the rear of the amplifier) on the rear panel of the A-2000 chassis. The

right channel terminals are closest to the chassis' outside edge. For each pair, the terminal for the live connection is

marked positive (+) and is the top terminal; the lower terminal is the return connection and is labeled negative (-).

Between the two pairs of channel terminals is a switch that provides for either 8 or 4 ohm impedance, as your

speakers may require. The upper position of the switch is for 8 ohm operation; the lower for 4 ohm operation. 8 and

16 ohm terminals are available by special order. The terminals accept bare wire (not recommended), spade and

banana type connectors.

POWER CONNECTION

Connect the input interconnects and speaker cables before you insert the power cable into the receptacle in

the centre of the rear of the chassis. The A-2000 SE 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 A-2000 SE will be set internally for your location's electrical system characteristics. Please check the setting

for electrical input on the label on the rear of the unit to confirm that your A-2000 SE matches your location's

electrical system. For North American customers, the A-2000 SE is set internally for AC 110/120 volt – 50/60 Hz.

For customers in other regions, the unit is set for 230/240V – 50/60 Hz operation. There is no way to change to

another AC setting.

INITIAL POWER-ON

Once you have your A-2000 25

preamplifier, you are ready to turn on the power for your A-2000. Before you power up the A-2000, though, be

sure you have:

•

removed ALL the cushion materials (cardboard) from inside the tube chimneys.

"O" rings, if any, on the small tubes; some prefer the sound with the O rings on.)

•

selected the input connection that you want to use, single ended (RCA) or balanced (XLR), on the switch on the

back of the chassis and have the interconnect firmly attached.

•

turned on your source(s) and your preamplifier, and turned the preamplifier's volume control down to zero or

otherwise muted its output

•

securely and correctly fastened the speaker cables and ensured that they are also connected properly to the

speakers

•

checked that all tubes are snug in their sockets

Turn on the A-2000 SE by pushing in the power switch button located on the right-side panel of the A-2000 SE's

chassis (facing the front of the unit) to the "on" position. The "on" position is with the top of the button switch

depressed. Of course, the off position is the reverse. After about a thirty to forty (30 - 40) second delay (the soft

start), the A-2000 SE will be powered on. After warm-up and application of full plate voltage, not all tubes may bias

at the same rate. Allow one or two minutes for all the tubes to reach full operating specification.

OPERATION

When the power is on, the current meters on the top plate of the chassis will illuminate. From this point on,

operation is straight-forward. When you are finished listening, turn off your A-2000 SE's power first; then, turn off

Anniversary SE in place and all connections have been made to your source(s) and

(It is optional to leave the