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Reference Manual

Page 8

Reference Manual

Page 5

DXP Series Switching Power Amplifier

6. Protect LED

Each channel has a Protect LED that will light when the load connected is lower than 1 Ohm
or amplifier broken.

7. Bridge LED

The Yellow active LED illuminates to indicate that the amplifier is work at bridge mode.

8. Power LED

The green active LED illuminates to indicate that the amplifier is turned on, and works
correctly.

9. AC power switch

Use this to switch on the amplifier. A soft-start system limits the start-up surges.

10. Fan exhaust ports

Heated air exits the amplifier through the exhaust ports, located on the rear of the amplifier
chassis. Be sure not to block this ports, especially when rack mounting the amplifier.

11. Input connectors

XLR female is provided on each channel for balanced or unbalanced input. Unfortunate
wiring, in the proximity of dimmers or other generalised phase controls, motors, trans-
former, etc. can cause interference into your system. You will hear loud humming or a
bumping noise in the loudspeakers. Balanced wiring suppresses these noises quite
significantly.

12. Impedance matching(OVP switch)

The OVP switches are located on the rear panel. The OVP (Minimum Load Select)switches
Offer impedance matching, so you can drive the DXP6000 into 2 ohms without increased
heat loss.
As stated earlier, the DXP6000 can produce 2300 watts into both, 2 and 4 ohms. Use lower
OVP settings when connecting to lower impedance loads as shown in table 1. As can be
seen in table 1, the DXP6000 can produce output power in excess of 2000 watts.

If the amplifier is going to operate above its maximum operating

temperature (90 C).The indicator first comes on as a warning to either turn down the input
level or check the cooling arrangements. Beyond the maximum temperature the amplifier
will mute the input signal. Once the cooling fans have brought the output heat sinks back to
normal operating temperature the input signal is un-muted.

Cooling Requirements

Amplifier use a forced air cooling system to maintain a low, even operating temperature.
Drawn by a infinitely variable speed fans mounted inside the unit, air enters through the
front
grills with dust filter, and courses through the cooling fins of the heatsinks, which dissipates
power transistor heat, before exiting through the rear panel ports. Make sure that there is
enough space around the front of the amplifier to allow air to enter, and around the units to
allow the heated air to exit. If the amp is rack-mounted, do not use doors or covers on the
front and rear of the rack; the air must flow through the amplifier without resistance.
Note: whatever type of rack you are using, make sure that the heated air can escape freely,
and that there is not resistance to the intake of cool air through the front grill.

Configuration

Use the configuration switch and the internal jumpers to configurate the amplifier to meet
your requirements. The setup must be done with the unit switched off. With the switches and
jumpers is possible to configurate the amplifier for the following functions:

Stereo Mode (standard)

In stereo mode, the channels operate independently, with their input attenuators controlling
the respective channel's

level. Recommended minimum nominal load impedance for stereo

operation is 4 or 2 Ohms per channel (as indicated on the specifications). Loudspeakers are
connected to the speakon outputs CH 1 or CH 2. For reference see

Bridged Mono Mode

In Bridged Mono mode, both amplifier channels work with the same input signal, but with
inverse phases. The result is a doubling of the output voltage and thus double the power on
the double impedance. If the amplifier is to be operated in Bridged Mono mode, ONLY one
input may be used CH1. We recommend that you set them to the -0dB (full) position.
Loudspeakers are connected to the speakon output CH 1. For reference see Figure 1.

Figure 1

MLS SWITCH SETTING

-5 dB

220 W
430 W
830 W

1660 W

-4 dB

260 W
520 W

1000 W
2000 W

-2 dB

410 W
820 W

1600 W

3050 W [1]