AKG HPA 4000 Bedienungsanleitung Seite 6

2 Description
2.4 Controls
2.4.1 Front Panel
Fig. 1: HPA 4000 front panel.
Note:
2.4.2 Rear Panel
Fig. 2: HPA 4000 rear panel.
Warning!
3 Setting Up
Important!
3.1 Audio Connections
Refer to fig. 5.
3.2 Connecting the Headphone
Amplifier to Power
Refer to fig. 5.
6
ON/OFF: Switches the unit on and off.
HP-OUT: 1/4" output jack for headphones.
SOURCE 1-8: These blue LEDs indicated either the selected input channel of the current volume level.
<-•-> Setup control: This combined pushbutton/rotary control provides three functions:
Short push: Selects the input channel. The SOURCE LED for the selected channel will be lit con-
stantly. Each short push selects the next higher input channel number. Channel 8 is followed by
channel 1.
Long push: Mutes the headphone output. The appropriate number of SOURCE LEDs will flash to
indicate the current volume.
Turn to the stop and hold to increase (<-) or decrease (->) the volume continuously.
You can set the volume in more than 8 increments. The next (previous) LED will therefore not be lit
(extinguish) before you have notched up the volume by several increments.
DC IN: Locking DC input for connecting the included 12 VDC, 500 mA power supply.
Operate the equipment with the included power supply with an output voltage of 12 VDC
only. Using adapters with an AC output and/or a different output voltage may cause seri-
ous damage to the unit.
AUDIO IN SR 1-8: 1/4" TS jacks for connecting up to eight SR 4000 receivers.
Prior to setting up the unit, check that the AC mains voltage stated on the included power
supply is identical to the AC mains voltage available where you will use your system.
Using the power supply with a different AC voltage may cause damage to the unit.
Make all audio connections before connecting the unit to power.
1. Use the supplied audio cables to connect the desired receivers to the AUDIO IN jacks labeled SR 1
through SR 8 on the rear panel of the HPA 4000.
2. Connect your headphones to the front panel HP-OUT jack.
1. Check that the AC mains voltage stated on the included power supply is identical to the AC
mains voltage available where you will use your system. Using the power supply with a differ-
ent AC voltage may cause damage to the unit.
2. Plug the feeder cable on the included power supply into the DC IN socket 2 on the HPA 4000 rear
panel and screw down the DC connector.
3. Plug the power cable on the power supply into a convenient power outlet.
AKG HPA 4000