Digital Voice Research Macsub 615 User Manual Download Page 2

DESCRIPTION

The 

MACSUB 615 

is a very compact and innovative subwoofer  that can ensure an

absolute sound quality in any use conditions.
It incorporates a powerful and reliable 

600 Wrms 

power amplifier with 

MOS-FET 

technology

designed for making a dynamic and clear sound, along with a music quality without equal.
The dynamics of trasducer is maximized by the 

AUDIO SIGNAL PROCESSOR 

and the

ELECTRONIC LIMITER

and it at the same time protected from signal peaks and

distorsion wich could compromise its lenght.
Thanks to the trasducers quality, the high technological content of its incorporated power
amplifier, the 

MACSUB 615 

meet the strict demand of PA system as bass frequency

reinforcement system.
On the top of the cabinet there is a top hat on which insert a standard stand for acoustic
speaker.

USE OF BALANCED INPUTS

MACSUB 615 

inputs are 

BALANCED 3 poles XLR CANNON type.

Balanced connection is studied to have a better rejection against the noise that wires (if very
long) takes from external interferences.
Most of professional audio equipment have balanced outputs, you can use however non
balanced connection with 

mono JACK 

(or 

3 poles CANNON 

with 

pin 3 connected to pin 1

)

the 

MACSUB 615 

will work normally, but it will be more sensitive to external interferences.

LINK outputs 

are paralleled with inputs, so they are balanced/sbalanced like the inputs.

XOVER outputs 

are always 

BALANCED 

type.

USE OF CROSSOVER AND LINK / XOVER OUPUTS

Internal crossover can be utilized in 

STEREO mode; 

connecting the two inputs L - R and their

outputs, or in 

MONO mode; 

connecting only the R (MONO) input and its relative outputs (see

fig.1).
The crossover outputs can be 

LINK or XOVER types;

• 

LINK OUTPUT 

is nothing else that the paralleled input signal, it can be used to give the save

signal to another speaker system.
It can be used to have a reinforcement on bass frequency, the speaker system connected to
the 

LINK output 

will reproduce the full range of frequency. If the speaker system does  not

can handle bass frequency or you hear dangerous distorsions, is preferred to use 

XOVER

output.
• 

XOVER OUTPUT 

allows to exclude from the output signal all bass frequency range 

(< 125 Hz). 

It can be  used to have the best sound clearness and an higher sound pressure in the
mid/high frequency. The sound system connected to the 

XOVER

ouput will reproduce only the

mid/high frequency range 

(> 125 Hz).

To have an higher sound pressure in bass frequency, is preferred to use 

LINK 

output.

USE OF INPUTS LEVEL

Volume knob adjust the input level of the two inputs and control only the subwoofer level,
the volume of 

LINK 

and 

XOVER 

outputs are unchanged.

Is preferred to use this control to have the right compromise between the bass frequency
generated from subwoofer and the rest of sound system.
The sound level can vary, it depend of the type of sound systems and connections
(balanced/sbalanced - link/xover).
The internal electronic limiter will always protect the loudspeaker and the amplifier from
dangerous input signal levels.

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