ACOUSTIC AND ELECTRICAL
Enclosure:
18 mm 13-ply birch plywood
Low Frequency Transducer:
12" INFRA cone
2.5" Voice coil
80 oz. Magnet
Input Connectors:
Cinch 142 screw terminal
barrier strip
Grille:
16 Gauge black vinyl coated
perforated steel
Optional Hardware:
Rigging points
SYSTEM COMPONENTS
PHYSICAL
System Type:
Infrasub sealed chamber
(1.4 ft
3
)
Impedance:
8 Ω
Crossover Network:
Requires INFRA™ Integrator
Frequency Response:
8 Hz to 95 Hz ±3 dB
(2π Steradians, with
8 Hertz Integrator)
Finish:
Black paint
Dimensions:
15"h x 18"w x 15"d
39 cm x 46 cm x 39 cm
Weight:
39 lbs.
18 kg
Shipping Dimensions:
18" x 21" x 18"
46 cm x 54 cm x 46 cm
Shipping Weight:
44 lbs.
20 kg
S12E-I
BAG END
SPECIFICATIONS
INFRA™, Infrasub™ and BAG END®are trademarks of Modular Sound Systems, Inc.
Sensitivity:
92 dB SPL @ 80 Hz (1W @ 1m)
(for additional information,
see INFRA Speaker Sensitivity
Technical Note)
Power Handling:
200 W continuous sine wave
200 W instantaneous peak
APPLICATIONS:
Film & Video Post Production
5.1 Digital Format Subwoofer
Recording Studio
Mastering Facility
Home Theater
Foreground Music Systems
S12E-I The S12E-I is a high output INFRA subwoofer system
designed to provide high fidelity extended low frequency audio
reproduction from a relatively small enclosure. The S12E-I provides perfectly flat response down to 8 Hertz when used in conjunction with the 8 Hertz Integrator. Designed for permanent
installation, the S12E-I offers a flat black painted finish and a
black coated steel grille.
ABOUT INFRASUB TECHNOLOGY
Almost all specifications for
subwoofer systems are fixated on the frequency response
domain. However, the impression of power and quality is equally related to the time domain performance of a system.
Because of the long wavelengths of low frequencies, this is particularly true with subwoofers.
Likewise, the maximum SPL is not a very reliable way to judge
the impact of a subwoofer. A poor time domain performer will
not have the same impact or natural sound as a time correct
INFRA system.
The reason that INFRA technology sounds dramatically better
than the others is because of their superior time domain performance. The INFRA subwoofer maintains the bass energy in a
tight packet, aligned with the upper range signal, providing a
greater body impact and a seamless musical connection with
the main loudspeakers.
Conventional sub designs perform so poorly in the time domain
because designers have used methods that sacrifice the phase
response for more control over the frequency response (e.g.,
steep low pass filter slopes, vented speaker enclosures, and
narrow bandwidth systems). With the INFRA technique, we do
not degrade the phase response while extending the frequency
response.
While the INFRA dual integrator does function as the system
crossover, it does so without using a low pass filter. Adding a
low pass filter, analog or digital, will have a degrading effect on
the time domain performance of the INFRA subwoofer. A low
pass filter adds signal delay to the sound which varies with frequency. Also, narrowing the pass band increases the influence
of the rolloff on both ends of the subwoofer spectrum. The
result is the smearing of the arrival times of the low frequency
sound components, changing the timbre and downgrading the
impact of transient sounds.
The Bag End INFRA subwoofers are designed as no-compromise, high fidelity reproduction systems. We believe they are
the finest subs available, regardless of price.
BAG END Loudspeakers
22272 Pepper Road
Barrington, Illinois
60010 USA
Voice 847 382 4550
Fax 847 382 4551
www.bagend.com