Mackie DX810 User Manual download pdf (Page 7)

DX810

Digital Audio Mixer/Signal Processor

MIXER

O F 8 P A G E S

Architects’ and Engineers’ Specications

The DX810 mixer/signal processor shall carry UL, cUL,

CE and FCC Class B certications. It shall have analog

inputs and outputs and mix/process in a 32-bit digital

domain. A/D and D/A converters shall be at least 24

bit. It shall also contain an expansion card and a connec-

tor panel, which shall provide eight discrete balanced

outputs on two 12-position Phoenix-style connectors.

All aspects of setup and control shall be from a PC

running software supplied by the manufacturer. The PC

interface to the unit shall be industry standard RS232

over a standard cable to either the front or rear panel.

The DX-10E-PC software shall provide a user interface

and provide control over the digital signal processing

features in the DX810, consisting of the following:

A Gate shall be provided on each input, and shall

provide a Threshold range from –60 to –1 dBfs, a Hold

range

from 0 to 2550 ms, a Release range from 10 to

2500 ms, and an attenuation Range from –100 to –1 dB.

An on/off button shall provide bypass control.

A 3-band EQ shall be provided on each input, and

shall have adjustable low-cut, high-cut, and bandpass

lters. The low-cut lter range shall be 20 Hz to 500 Hz.

The high-cut lter range shall be 500 Hz to 20 kHz. The

bandpass lter shall have a range from 20 Hz to 20 kHz,

with

a bandwidth control ranging from 0.1 to 6.0 octaves. All

lters shall have an

amplitude control ranging from +15

to –15 dB. An on/off button shall provide bypass control.

A Compressor shall be provided on each input and

output,

and shall provide a Threshold range from –60 to

–1 dBfs,

an Attack range from 0.1 to 2500 ms, a Release

range from 10 to 2500 ms, a Ratio range from 1.0:1 to

20:1, and an Output range from 0 to +20 dB. An on/off

button shall provide bypass control.

A Delay shall be provided on each output, with a

Temperature compensation range from –40 to 122°F

(–40

to 50°C), a Course time delay range from 0 to 200 ms,

and a Fine time delay range from 0 to 997 µs. An on/off

button shall provide bypass control.

A Graphic Equalizer shall be provided on each output,

with 31 bands spaced on ISO centered frequencies rang-

ing from 20 Hz to 20 kHz, each with an amplitude control

ranging from

+15 to –15 dB. An on/off button shall provide

bypass control.

A Parametric Equalizer shall be provided on each out-

put, with 5-bands, and each band shall have a Gain

range from

+15 to –15 dB, a Frequency range from 20

Hz to 20 kHz,

and a Bandwidth range from 0.1 to 6.0

octaves. An

on/off button shall provide bypass control.

A Crossover shall be provided to link up to ve out-

puts to a set of eight inputs, and shall have an Output

select for 1 to 5 bands, a Polarity switch for each output,

a Filter Type control to select high-pass, low-pass, or

bandpass lters for each output, an Alignment switch to

select either Linkwitz-Riley or Butterworth characteristics

for the selected Filter

Type, a Filter Slope control to select

12, 18, or 24 dB

per octave slopes, and a Frequency con-

trol with a range from

20 Hz to 20 kHz. An on/off button

shall provide bypass control.

The unit shall be capable of performing selected con-

trolled functions from optional remote controls supplied

by the manufacturer and/or controllers, panels and com-

puters (e.g. AMX®, Crestron®) using optional software/

protocol supplied by those manufacturers. It shall be

capable of being updated in the eld by re-ashing its

rmware. The unit shall have at least 32 preset memories

that can be remotely recalled. It shall also support at

least 10 logic input events and be able to generate at

least 10 logic output events. All setup parameters shall

be stored within the unit in non-volatile memory. The unit

shall have front panel controls to adjust the mixer level

of each input, select the bar graph display, adjust the

output levels for the A and B outputs, set a password,

lock and unlock the unit.

The unit shall have eight balanced, low-impedance

microphone inputs that supply at least 60 dB of gain.

48 V microphone powering shall be provided for each

channel and be individually turned on/off by a series

of switches on the rear panel. The unit shall also

have at least eight servo-balanced line level inputs

that will accommodate signals over a range of –30

to +30 dB. These input signals shall be mixed in the

digital domain between the A through J buses in 1 dB

steps. An unbalanced, analog direct output and digital,

2-band shelving equalizer with parametric mid band shall

be provided for each input. In addition, the unit shall

have two servo-balanced, line-level inputs with trim that

inject their signal directly onto the A or B mixing bus,

respectively.

Ten mixing bus analog outputs shall be provided. They

shall be servo-balanced, able to drive 600 ohms to +18 dB

and controlled in 1 dB steps. Each mixing bus output

shall have available, a 3-band shelving equalizer with a

parametric mid, a 31-band one-third octave equalizer, a

5-band parametric equalizer, and a compressor. In addi-

tion, there shall be an A bus and B bus analog unbal-

anced line-level record output at the same level as the

buses. Dynamic range shall be at least 110 dB and distor-

tion shall be less than 0.1% at full rated output.

The unit's power supply shall be onboard and capable

of operating at 90–240 VAC. The unit shall also be capa-

ble of automatically switching over to a 24 VDC power

source. It shall be mountable in a standard 19" EIA rack

and require no more than 3.5" of vertical space. The dual

channel mixer/processor shall be a model DX810 manu-

factured by Mackie Designs.

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Mackie DX810 User Manual Page 7

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