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General description
Genelec 7060B, 7070A and 7071A are pow-
erful active subwoofers, incorporating all the
amplifier and crossover electronics needed
for bass management and reproduction in
modern 6.1 or 5.1 channel surround sound
or traditional stereo systems. Their 19 to
120 Hz (±3 dB) frequency range, ample
sound pressure capability and versatile
connections make these subwoofers ideal
companions for Genelec's active monitoring
speakers.
Bass management unit
The built-in bass management unit has six
signal input and output channels (L/C/R Front
and L/C/R Rear), a discrete LFE signal input
and a summed signal output, providing great
flexibility and easy connection in all monitor-
ing environments.
The active crossover contained in the bass
management unit splits the input signals into
low and high frequency components at 85
Hz. Frequencies below 85 Hz are directed to
the subwoofer and frequencies above 85 Hz
to the main speakers.
The low pass section sensitivity can be
adjusted from +12 dBu to -6 dBu to allow
easy subwoofer level matching with various
main speakers. All outputs have 0 dB pass-
band gain.
The low pass frequency of the LFE input
channel can be set to 85 Hz, 120 Hz or 85 Hz
with "Redirect" function that routes LFE con-
tent above 85 Hz to the front center monitor.
The input sensitivity of the LFE channel can
be set to 0 dB or +10 dB.
Balanced XLR connectors are used for the
system audio inputs and outputs.
Two "Bass Roll-Off" switches are included
to provide a flat bass response in all acous-
tical environments, enabling adjustments of
the subwoofer response in three -2 dB steps.
Two phase matching switches in the crosso-
ver allow compensation for the delay which
occurs if the subwoofer is placed away from
the main speakers, or for other speaker sys-
tems phase behaviour. Four settings are pro-
vided between 0° and -270°. An 85 Hz test
tone generator is included to help achieve
accurate crossover phase alignment.
Installation
Each subwoofer is supplied with a mains cable
and an operating manual. Once unpacked,
place the subwoofer in a suitable location (for
more details see the "Positioning" section).
Before connecting the audio signals, ensure
that both the subwoofer and the main moni-
tors are switched off. Check that the voltage
selector switch is set according to your local
mains voltage (subwoofers sold in Europe
have a fixed 230V setting). Connections are
easier to make if you roll the subwoofer on
its side with the connector panel facing up.
Use this position only for making the con-
nections and roll the subwoofer back to its
normal upright position before use. Audio
connections to the subwoofer are made via
balanced XLR connectors. An unbalanced
source can also be used with a special RCA
to XLR cable; the correct connection for the
cable is shown in Fig. 2. However, we recom-
mend the use of balanced cables and con-
nectors due to their better noise immunity.
The connectors are arranged in three rows
on the connector panel (see Fig. 1):
Top row
LFE IN / SUM IN: Use this connector for
the LFE or .1 output channel of a 5.1-
or 6.1-channel discrete surround sound
source, or the SUM OUT signal from the
"master" subwoofer in a daisy-chained mul-
tiple subwoofer configuration. Note that the
"subwoofer out" channel of an analogue
7060B, 7070A and 7071A Active Subwoofers