Genelec 1091-A Brochure

1091A

DATA SHEET

Genelec 1091A

Active Subwoofer System

Genelec 1091A Active Subwoofer System

SYSTEM

APPLICATIONS

NEAR FIELD MONITORING

AUDIO VISUAL POST PRODUCTION

MOBILE VANS

HOME THEATRES

PROJECT / HOME STUDIOS

DIGITAL WORKSTATIONS

MULTIMEDIA PRODUCTION / PLAYBACK

The 1091A active subwoofer is a
very compact low frequency loud­speaker, incorporating all the
amplifier and crossover electron­ics needed to combine it with
Genelec 1029 or 2029 series
loudspeakers.The 1091A is in­tended to reproduce frequencies

from 38 - 85 Hz (± 2.5 dB).

The amplifier unit, which is inte­grated into the cabinet, consists
of the active crossover filter, driver
overload protection circuits and a
power amplifier. The subwoofer
has two input connectors and
adjustable sensitivity. This provides
great flexibility.

INTEGRATED
CONSTRUCTION

The combination of the cabinet
and amplifier in one unit results in a
simple and robust system. The
1091A is factory calibrated as a
single unit. This eliminates the
effects of component tolerances and
ensures consistent quality.
The cabinet is made from MDF
with rounded corners and a hard­wearing textured black surface. The
driver is concealed inside an
efficiency boosting cavity, which
also protects it from physical
damage.

Figure 1. Block diagram, showing active crossover filters, power amplifiers and driver units.

CROSSOVER FILTERS

The active crossover contained
within the amplifier unit filters 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
8 dB in 2 dB steps, to allow easy
level matching with the main
speakers for varying positions.
A balanced XLR female and a
balanced
for the system inputs. This allows
for easy integration with Genelec
1029 and 2029 series active
monitors.

1

/4" jack socket are used

AMPLIFIER

The amplifier 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
amplifier 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 amplifier also incorporates
thermal overload and short circuit
protection.

DRIVER

The 1091A has one 210 mm (8")
cone driver, capable of producing
high SPL's. The driver is housed
in a 15 litre vented cabinet. It is
specially front loaded to improve
both the passband efficiency and
stopband rejection.