ipquartz-i - Bag End Loudspeakers

ipquartz-i - Bag End Loudspeakers
Stadium Sound Reinforcement
House of Worship
Auditorium Sound Reinforcement
Theatrical Sound Reinforcement
Nightclub Installations
The IPQUARTZ-I is a very high output Minima One™ self-powered, internally Infra™
processed, concert subwoofer system. It is designed to minimize the space required to
obtain extremely high level and high fidelity low frequency output. The internal Minima
One™ amplifier incorporates a high efficiency low power consumption green design
with advanced digital switching to automatically accept any line voltage from 88 to 270
volts. Low voltage contacts are provided for installations to remotely turn the amplifier
on and off.
System Type:
Input CAL Sensitivity:
4 - Infrasub™ sealed chambers 3 ft3 each
+4 dBu
Maximum Continuous Amplifier
16 - Machined aluminum speaker
mounting clamps
Optional F8 Fly points available
A positive asymmetrical signal applied to pin 2
will result in a positive asymmetrical
acoustical pressure
Fly Points Safe Working Load:
300 lbs.
40”h x 30”w x 31”d
102 cm x 76 cm x 79 cm
Trapezoidal – 6 degree taper per side
18 mm 13-ply birch plywood
2700 W into 2 Ohms
Black Ro Tex™ True water born environmental
High Pass Filter:
Overload Protection:
Switchable: -6 dB @ 8 Hz; @ 50 Hz; @ 95 Hz
14 Gauge black powder coated perforated
steel in a welded extruded aluminum frame
Internal Dynamic Filter™ protection
Low Frequency Components:
4 - EL18A 18” Transducers, Infra™ Cone,
3” Voice coil, 120 oz. Magnet
Green - On
Yellow - System limit
Red - System fault or sleep mode
Input Connector:
Mains Voltage Requirements:
XLR 1/4” combo with XLR loop through
Internal Amplification:
2 – Minima One™
Input Impedance:
48K Ohms
LED Indicators:
Auto sensing
Universal voltage range
88 Volts minimum to 270 Volts maximum
Mains Current Requirements:
9.2 Amps @ 120 Volts
4.6 Amps @ 240 Volts
Crossover Type:
Internal Infra™ Integrator Inside
Frequency Response:
18 Hz to 80 Hz ±3 dB
234 lbs
106 kg
Low Frequency Limit:
Custom Finishes:
8 Hz
Maximum Calculated Continuous
Acoustic Output:
Optional custom finishes include white or
unfinished ready to paint.
Half Space @ 1 Meter
10 Hz - 101 dBSPL
20 Hz - 115 dBSPL
40 Hz - 131 dBSPL
80 Hz - 135 dBSPL
INFRA™, INFRASUB™, MINIMA ONE™ and DYNAMIC FILTER™ are trademarks of Modular Sound Systems, Inc.
BAG END® is a registered trademark of Bag End, Inc.
BAG END Loudspeakers . 1201 Armstrong Street . Algonquin, Illinois, 60102 USA . Voice 847 658 8888 . Fax 847 658 5008 . www.bagend.com . V.091616
Almost all designs and specifications for subwoofer
systems are fixated on the frequency response domain.
However, the impression of power and quality of a
loudspeaker is equally related to the time domain. The
long wavelengths associated with low frequencies,
make this 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 musically
connected sound as a Time-Aligned™ Infra™ system.
The reason that an Infra™ subwoofer sounds
dramatically better is because of its superior time
domain performance, as well as its extended low
frequency response. 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 subwoofer 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 conventional low pass filter. The Infra™
integrator applies an inverse electrical response to the
acoustical response of the Infra™ loudspeaker in its
sealed enclosure. This provides both the upper frequency
roll off and the extended frequency response while
maintaining the hi sound quality often associated with a
sealed box design. When comparing a genuine Bag
End® Infra™ loudspeaker system to any other, our
technology and design is easy to hear and appreciate.
The dramatic clarity, realism, and overall pleasant sound
of an Infra™ system is well noted throughout the world.
Infra™ self processed systems incorporates our analog
Infra™ dual integrator into the Minima One™ input
circuit. Infra™ Self Powered Systems accept a full range
line level audio signal, and utilizes internal Infra™
processing to provide the extended low frequency
acoustical response, as well as a uniform roll off, of the
upper range of the subwoofer. The Dynamic Filter™
protection is included and preset to the amplifiers
sensitivity, requiring no external setup. The Minima
One™ amplifier is both a high fidelity and a high
efficiency amplifier. With efficiency well over 80%, it
provides more power to the loudspeakers, and creates
less heat in the amplifier. In real world applications there
is practically no heat emitted from the amplifier and thus
it requires no cooling fan. The power factor corrected AC
power input, automatically and continuously adapts to
any voltage between 88 and 270 volts. The Minima
One™ is convenient and stable to operate on any power
grid in the world.
The Dynamic Filter™ is a complimentary technology to
the Infra™ system taking unique advantage of the Infra™
design approach, to implement a reliable protection
scheme that is transparent and inaudible to the listener.
Systems using the external rack mount Infra-MXB
processor require an appropriate threshold adjustment
that sets the amplifiers power and sensitivity to the
Infra™ loudspeakers in use. When a system is asked to
do more than it is capable of, or if an accidentally large
signal is presented the threshold of the Dynamic Filter™
is crossed and the system protects itself from the bottom
up by reducing the lowest frequencies first. Since the
most power and excursion is always required at the
lowest frequency, reducing the level of the lowest
frequencies first avoids an overload, while at the same
time the system is able to reproduce the middle and
upper bass and leave the upper crossover region
unaffected. This is a very natural and inaudible method
to protect the system and unique to the Infra™
BAG END Loudspeakers . 1201 Armstrong Street . Algonquin, Illinois, 60102 USA . Voice 847 658 8888 . Fax 847 658 5008 . www.bagend.com . V.091616
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