Page 1
7000 Series
Data Sheet
Genelec 7050A
Active Subwoofer
Page 2
Active Subwoofer 7050A
System
Genelec 7050A active subwoofer is a very
compact low frequency loudspeaker,
incorporating all the amplier and crossover
electronics needed to combine it with Genelec
1029 or 2029 series loudspeakers. Adding
the 7050A to a 1029/2929 system creates a
compact neareld monitoring system capable
of a at frequency response from 38 Hz to 20
kHz (± 2.5 dB).
The amplier unit, which is integrated into
the cabinet, consists of the active crossover
lter, driver overload protection circuits and a
power amplier. The subwoofer has two input
connectors and adjustable sensitivity. This
provides great exibility.
LSETM cabinet construction
Like the larger Genelec 7000 series
subwoofers, the 7050A features the new
Genelec Laminar Spiral Enclosure
bass reex cabinet. The cabinet is made of
sheet metal rolled into a spiral shape and
clamped between thick MDF side panels. The
spiral forms a seamless, gently curving reex
tube with exellent laminar ow characteristics
and minimal turbulence noise. The curved
shape also offers excellent structural stiffness
and optimal packing of a very long reex tube
into a small space.
The amplier unit is mounted on vibration
absorbers, to ensure rattle-free operation.
TM
(LSETM)
This results in a robust and reliable system.
The handsome cast-aluminium grille protects
the magnetically shielded 8 inch driver.
Driver
The 7050A is equipped with a 200 mm (8”)
magnetically shielded long throw cone driver
capable of producing SPLs up to 105 dB in
half space.
Amplier
The amplier produces 70 W of output power,
with very low THD and IM distortion. It is
mounted on thick aluminium, which provides
excellent heat dissipation. Driver overload
protection and power-on signal muting is
included in the amplier circuitry. This makes
the system immune to overloads and spurious
signals. Power-on signal muting electronically
disconnects the drive unit when the power is
turned on. The amplier also incorporates
thermal overload and short circuit protection.
Crossover lters
The active crossover contained within the
amplier unit lters the input signals. This
accurately rejects the higher frequencies that
the monitors reproduce, and allows the lower
frequencies to pass. The sensitivity can be
attenuated by from 0 dB to -18 dB for easy
level matching with the main speakers for
Main Features:
• LSE™ Power efcient port/
enclosure design
• Minimal port turbulence noise
• Unparalleled low frequency
performance
• Precise integration to Genelec
1029/2029 systems
varying positions.
Balanced XLR female connectors are used
for the system inputs. This allows for easy
integration with Genelec 1029 and 2029
series active monitors.
Cabling and connections
Figure 3 shows the 7050A and the 1029A’s.
Figure 4 shows how the system should be
cabled. The input to the 1029/2029 monitor
is made by an XLR connection. This can be
either balanced (e.g. output of mixing console)
or unbalanced (e.g. output of CD player).
The subwoofer output of the 1029/2029, and
hence the inputs to the 7050A are balanced.
The wiring diagrams for these congurations
can be found in the operating manual which
is supplied with the systems.
Why a subwoofer?
For applications, such as computer
multimedia work and most types of near eld
monitoring, the 1029/2029 is an appropriate
monitor system. However if lower LF cutoff
and more SPL are required, for example in a
home theatre system, the 7050A subwoofer
has been designed for this requirement.
The 7050A has been specically designed
to complement Genelec 1029/2029 series
active monitors. When combined they give
a frequency response comparable to some
larger Genelec monitors - one of the
Page 3
Figure 1: The amplier panel layout of a 7050A
series subwoofer.
Figure 2: 7050A harmonic distortion analysis
in free eld. In half space the SPL will be 6
dB higher.
differences is the greater SPL’s offered by
larger systems.
The 1029/2029 and 7050A combination
offers greater exibility on placement
positions. Due to the 1029/2029’s physical
size it can be located on desks and, if
carefully placed appear fairly innocuous in
a room. Further advice on how to place
the monitor is described in the operating
manual.
If the subwoofer and main speakers are
placed properly some of the low frequency
problems associated with free standing
speakers can be avoided.
Why active speakers?
There are various reasons why active
speakers are preferable to passive
alternatives, the most dominant being the
integrated construction allowing better
optimization of the system performance. The
monitors are always delivered as a complete
factory calibrated system, consisting of all
ampliers, crossover electronics and speaker
cabinets.
In an active monitor system the ampliers
are connected directly to the drive units.
Distortion anomalies and losses caused by
passive crossovers are completely avoided
resulting in better sound quality and maximum
acoustic efciency.
For every model of monitor the associated
ampliers have a unique design including
driver overload protection. The overload
protection detects signals that are above
the drivers safe limits preventing damage.
This makes the system immune to overloads
and spurious signals which synthesizers,
Figure 3: Connecting a 7050A subwoofer to a pair
of 1029/2029 monitors.
sequencers and multimedia sources, such as
sound cards, can occasionally produce.
The crossover and phase responses are
optimized for each particular model to
achieve highly accurate system performance.
Consequently every model has the same
neutral sound.
Page 4
7050A Data Sheet
SYSTEM SPECIFICATIONS
7050A
Free eld frequency response
(+/- 3 dB) 38 Hz…85 Hz
Maximum short ter m sine wave
SPL output averaged from
45 to 85 Hz, measured in
half space at 1 meter ≥ 100 dB SPL
Maximum peak SPL output with
random pink noise, measured
in half space at 1 meter ≥ 105 dB SPL
Self generated noise level in
free eld @ 1 m on axis
(a-weighted) ≤ 15 dB
Harmonic distor tion @ 95 dB SPL
at @ 1 m on axis in half space 40 … 85 Hz
2nd ≤ 3 %
3rd ≤ 2 %
Driver, magnetically shielded 200 mm (8”)
Weight 15 kg (33 lbs)
Dimensions
Height 410 mm (16 1/8”)
Width 350 mm (13 3/4”)
Depth 314 mm (12 3/8”)
CROSSOVER SECTION
7050A
Subsonic lter
(18 dB/octave) below 38 Hz
Crossover frequency,
(sub/main channels) 85 Hz
AMPLIFIER SECTION
7050A
Short term amplier output
power (Long term output power
is limited by driver unit
protection circuitr y) 70 W
Amplier system distor tion
at nominal output
THD ≤ 0.08%
Mains voltage 100/200V
or 115/230V
Power consumption (average)
Idle 10 VA
Full output 100 VA
INPUT SECTION
7050A
Input connector XLR female
pin 1 gnd
pin 2 +
pin 3 –
Input impedance 10 kohm balanced
Input level for 100 dB SPL
output @ 1 m 0…–18 dB (referenced to 1029/2029 output)
Genelec Documen t BBA0045001. Copyright Genelec Oy 1 .2002. All data subject to change without prior notice
CONTROLS
7050A
Input sensitivity 0…–18 dB
Inter national e nquiries:
Genele c, Olvitie 5
FIN-74 100, Iisal mi, Finlan d
Phone +358-17-83 881
Fax +358-17-812267
Email genelec@g enelec.com
In the U.S. please c ontact
Genele c, Inc., 7 Tech Circ le
Natick, MA 01760
Phone 508/652-09 00
Fax 508/652-0909
Email genelec.u sa@genelec.com
www.genelec.com
Loading...