Dynatech MP-5000 Instrukcja obsługi - Strona 10

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PROFESSIONAL POWER AMPLIFIERS

The three-position, recessed Mode Select switch (located on the rear panel) configures the amplifier for

either Stereo, Parallel or Bridged Mono Mode. Amplifiers are factory-configured for Stereo Mode.

Stereo Mode.

In Stereo Mode, both channels operate independently, with their input attenuators controlling their

respective levels. Signal at Channel 1's input produces output at Channel 1's output, while signal at

Channel 2's input produces output at Channel 2's output. Recommended minimum nominal load

impedance for stereo operation is 2 ohms per channel. Either the 1/4" (TRS) inputs or the XLR inputs

may be used.

Parallel (Mono)Mode.

When set to Parallel

and be amplified and appear at outputs for both Channels 1 & 2. The output signal is controlled by each

attenuator

NOTE!: Some other amplifiers only use Channel 1 for input, and both output is controlled by Channel

1 attenuator .

Bridged Mono Mode.

Bridged Mono Mode straps both amplifier channels together to make a very powerful, single-channel

monaural amplifier. One channel "pushes" and the other "pulls" equally, doubling the power over that of

either channel alone. Signal is applied to the Channel 1 input only, both output level is controlled by Chan-

nel 1`s attenuator .

NOTE: The channel 2 input connectors (XLR and/or TRS) may be used to "loop thru" the channel 1 signal

when in parallel or bridged mono mode.

Use extreme caution when operating the amplifier in Bridged Mono Mode. Never ground either side of the

speaker cable when the amplifier is in Bridged Mono Mode; both sides are "hot." If an output patch panel

is used, all connections must be isolated from each other and from the panel. The recommended minimum

nominal load impedance in the Bridged Mono Mode is 4 ohms, which is the equivalent to driving both

channels separately at 2 ohms. Driving bridged loads of less than the recommended minimums will activate

the IGM circuitry, resulting in a loss of power, and may also lead to a thermal protect condition.

Subwoofer Mode

This mode sends low frequencies to your speakers without the use of an external cross-over. The subwoofer

operation can be operated in stereo, mono, or bridge mono modes. Change the different operating modes by

flipping the mode switch on the rear of the unit to your desired operating mode. Also, set the subwoofer mode

switch to the subwoofer position. Use the frequency selector to adjust the subwoofer output frequency from

20Hz to 200Hz. The different subwoofer modes are listed as follows:

Bridge Subwoofer -

the sole purpose of running a high powered subwoofer loudspeaker in mono. To avoid amplifier overheating,

never run the amplifier below 4 ohms in this mode. In this mode you may use the frequency adjustment on

the rear of the amp, to control the frequency output level. Frequencies may beadjusted from 20Hz to 200Hz.

Page 12 details a typical Bridge Subwoofer set up.

Stereo Subwoofer -

operation allows you to run several subwoofers down to a minimum of 2 ohms. To avoid amplifier over-

heating, never run the amplifier below 2 ohms in this mode. Set up this mode as you would a standard stereo

set up. Be sure both channels are set to ※SUBWOOF.§ In this mode you may use the frequency adjustment

on the rear of the amp, to control the bass frequency output level. Frequencies may be adjusted from 20Hz

to 200Hz. Page 10 details a typical Stereo Subwoofer set up.

Parallel (Mono) Subwoofer -

When running subwoofers it is usually recommended to run them in mono mode to achieve a cleaner tighter

low end. This operation allows you to run several subwoofers down to a minimum of 2 ohms. To avoid amplifier

oveheating, never run the amplifier below 2 ohms in this mode. Set up this mode as you would a standard stereo

set up. Be sure both channels are set to ※SUBWOOF§ and the mode switch is set to ※MONO.§ In this mode

you may use the frequency adjustment on the rear of the amp, to control the bass frequency output level.

Frequencies may be adjusted from 20Hz to 200Hz.

One Channel Normal/One Channel Subwoofer (BI-AMP)

bi-amp your system. You may use one side of the amp to power a subwoofer and the other side to power a

full range speaker.

See figures on pages 10 - 12 showing output connection information.

MP SERIES

MP-3000 (2U MODEL)

MP-4000 MP-5000 MP-7000 ( 3U MODEL)

Mode Selection

(Mono)

Mode, The signal input to Channel 1 and channel 2 will be added together

This operation allows you to get the most possible power out of your amplifier for

This operation is similar to the Bridge Subwoofer operation but in stereo. This

This operation is similar to the Stereo Subwoofer operation but in mono.

Mode Selection

- You may also use your amp to

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