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INPUTS

There are two (2) female inputs (See Figure 4). One accepts a balanced cable with a male XLR connector;

the other accepts a cable with a single-ended, RCA type male connector. These input connections are

located on the right (facing the back) rear of the chassis, with the balanced input closest to the side edge.

Between the inputs, there is a switch to select one of two pin configurations for a balanced cable (i.e., it

changes the phase). The top position is for pin 2 "hot" and pin 3 "cold/neutral"; the bottom position is for

the reverse (in both cases, pin 1 is ground).

SPEAKER TERMINALS

Each A-5000 DHT is equipped with one pair of high-quality speaker terminals (See Figure 4). These

terminals are located in the middle of the rear panel of the A-5000 DHT chassis, with the red marked

terminal for the live connection labelled positive "+" on the right, and with the return connection labeled

negative "-", to the left (facing the chassis rear). Between the plus and minus 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 interconnect and speaker cables before you insert the power cable into the

receptacle at the left (facing the back) rear of the chassis (See Figure 4). The A-5000 DHT uses a

standard 15 amp three prong male IEC connection for AC input. You need to use power cords with a

female 15 amp, three prong IEC connector at one end. The Allnic ZL-3000 and ZL-5000 power cables

will make an excellent match.

The A-5000 DHTs you have purchased are set internally for either AC 110/120 volt – 60 HZ, or 220/230

volt – 50 HZ operation. There is no way to change this to another AC setting without return of the A-

5000 DHTs to the factory for re-wiring, at the owner's cost, including transport both directions.

INITIAL POWER-ON

Once you have your A-5000 DHTs in place and all connections have been made to your source(s) and

preamplifier, you are ready to turn on the power for your A-5000 DHTs. Before you power up the A-5000

DHTs, though, be sure you have:

•

removed ALL the cushion materials (e.g., cardboard) from inside the tube chimneys. Any silicone

rings or other damping material (not cardboard or Styrofoam packing materials) on the RS242

should be left ON the tube.

•

selected the input connection you want to use, single ended (RCA) or balanced (XLR) and, for XLR

selected the correct phase position of 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