is 10 dB of extra level (headroom) available.
Most AV processors automatically add 10
dB to the LFE channel to restore the level in
the LFE channel but some medium format
mixing consoles and many smaller consoles
do not have the facility to apply the +10 dB
gain to the LFE. To overcome this limitation
Genelec subwoofers provide a +10 dB LFE
gain selection.
The “LFE +10 dB” function should not be
used in the following cases:
• If the +10 dB LFE gain is already
implemented by another device, for
example, a surround sound processor or
the output matrix of a mixing console.
• When producing an audio format that
does not require the use of +10 dB gain
on the LFE channel.
Bypass
The Bypass input accepts a 6.3 mm tip-ring-
sleeve (TRS) or tip-sleeve (TS) plug. This
plug supports a contact open/close switch
device. Connecting the TIP to the SLEEVE
activates the bass management bypass.
When the bass management bypass is
active, the subwoofer only reproduces the
LFE signal and the outputs bypassed to the
monitors are exact copies of the inputs.
Safety Considerations
Genelec 7050C subwoofer has been
designed in accordance with international
safety standards. However, to ensure safe
operation and maintain the unit in safe
operating condition, the following warnings
and cautions must be observed:
• Servicing and adjustment must only be
performed by qualied service
personnel. The subwoofer cabinet or
electronics unit must not be opened.
• Do not use this subwoofer with an
unearthed mains cable or an unearthed
mains connection as this may
compromise electrical safety.
• Do not expose the subwoofer to water
or moisture. Do not place any objects
lled with liquid, such as vases on the
subwoofer or near it.
• This subwoofer is capable of producing
sound pressure levels in excess of
85 dB, which may cause permanent
hearing damage.
• Free ow of air around the subwoofer is
necessary to maintain sucient cooling.
Do not obstruct airow around the
subwoofer.
• Note that the subwoofer is not
Figure 8. The curves above show the
harmonic distortion analysis of the
7050C in free eld. In half space the
SPL will be 6 dB higher.
Figure 7. The free eld frequency
response of the 7050C subwoofer at
dierent Bass Roll-O settings
7050C
2 channel
system
5 channel
system
8020
8030
M030
8010
8020
Room volume up to
75 m
3
/ 2647 ft
3
completely disconnected from the
AC mains service unless the mains
power cord is removed from the
subwoofer or the mains outlet.
Warning!
This subwoofer is capable of delivering sound
pressure levels in excess of 85 dB, which
may cause permanent hearing damage.
Maintenance
No user serviceable parts are inside the
subwoofer. Any maintenance of the unit
must only be performed by qualied service
personnel.
Guarantee
This product is supplied with a two year
guarantee against manufacturing faults or
defects that might alter the performance of
the unit. Refer to supplier for full sales and
guarantee terms.
Compliance to FCC Rules
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
• This device may not cause harmful
interference, and
• This device must accept any interference
received, including interference that may
cause undesired operation.
This equipment has been tested and found
to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide
reasonable protection against harmful
interference in a residential installation.
This equipment generates, uses and can
radiate radio frequency energy and, if not
installed and used in accordance with the
instructions, may cause harmful interference
to radio communications. However, there is
no guarantee that interference will not occur
in a particular installation. If this equipment
does cause harmful interference to radio or
television reception, which can be determined
Table 2. Recommended main speaker
models for the 7050C
by turning the equipment o and on, the user
is encouraged to try to correct the interference
by one or more of the following measures:
• Reorient or relocate the receiving
antenna.
• Increase the separation between the
equipment and receiver.
• Connect the equipment into an outlet on
a circuit dierent from that to which the
receiver is connected.
• Consult the dealer or an experienced
radio/TV technician for help.
Modications not expressly approved by the
manufacturer could void the user’s authority
to operate the equipment under FCC rules.
+0
+20
+40
+60
+80
+100
10
200
20
30
50
100
Hz
Level vs Freq (Hz) 7050C 4.2.18
LFE channel
Main channels
Bass
Roll-Off
-4,-8 and
-12dB
dB SPL
Harmonicdistortion 7050C 4.2.18
+0
+100
+20
+40
+60
+80
10
200
20
30
50
100
Hz
Fundamental
frequency
2nd harmonic
3rd harmonic