Bag End PS18E-I Specifications

SELF-POWERED

ACOUSTIC AND ELECTRICAL

Enclosure:

18 mm 13-ply birch plywood

Low Frequency Transducer:

18" INFRA cone
3" Voice coil
120 oz. Magnet

Internal Amplification:

1- Minima One

Grille:

16 Gauge black vinyl coated
perforated steel

Standard Hardware:

4 - Machined aluminum speaker
mounting clamps

Optional Hardware:

Rigging points

SYSTEM COMPONENTS

PHYSICAL

System Type:

Infrasub sealed chamber (3 ft

3

)

Input:

10k Ω Balanced XLR inputs with

loop through

Input CAL Sensitivity:

+4 dBu

System Power:

500 W continuous

Frequency Response:

60 Hz to 250 Hz ±3 dB
w/External Infra Integrator
8 Hz to 95 Hz ±3 dB

Standard Finish:

Black Textured Finish

Dimensions:

21"h x 22"w x 18"d
54 cm x 56 cm x 46 cm

Weight:

69 lbs., 31.5 kg

Shipping Dimensions:

24" x 25" x 21"
61 cm x 64 cm x 54 cm

Shipping Weight:

77 lbs., 35 kg

P-S18E-I

BAG END

SPECIFICATIONS

Hi Pass Filter Frequency
Switchable:

-6 dB @ 8 Hz, @ 50 Hz, @ 95 Hz

Crossover Network:

Requires external INFRA
Integrator for 8 Hz Response

Maximum Acoustic Output:

Half Space @ 1 Meter
10 Hz - 94 dBSPL
20 Hz - 106 dBSPL
40 Hz - 118 dBSPL
80 Hz - 127 dBSPL

LED Indicators:

Green, On
Yellow, System Limit
Red, System Fault or Sleep Mode

AC Power Requirements:

88 Volts Minimum
270 Volts Maximum

APPLICATIONS:

Film & Video Post Production

5.1 Digital Format Subwoofer
PA System Installations
Recording Studio
Mastering Facility
Home Theater
Discotheque

MINIMA ONE SELF POWERED The P-S18E-I is a high output self­powered subwoofer system designed to provide high fidelity extend­ed low frequency audio reproduction from a relatively small enclo­sure. The P-S18E-I provides perfectly flat response down to 8 Hertz
when used in conjunction with the 8 Hertz Integrator. Designed for
permanent installation, the P-S18E-I offers a flat black textured fin­ish and a black coated steel grille.

OPTIONAL CUSTOM FINISHES

Available in textured white paint or
ready-to-stain natural birch for greater versatility in location and aes­thetics. Also available in outdoor weather resistant package.

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.

MINIMA ONE™, INFRA™, Infrasub™ and BAG END®are trademarks of Modular Sound Systems, Inc.

BAG END Loudspeakers

22N272 Pepper Road

Lake Barrington, Illinois

60010 USA

Voice 847 382 4550

Fax [phone]

www.bagend.com

INSTALLATION SERIES

P-S18E-I

LLOOGGOO
Z−342

DDRRIIVVEERR
EL−18A

GGRRIILLLLEE

VINYL
COATED STEEL
S18EG−1

WWAASSHHEERR

#8 BLACK

NYLON Z−110 (4)

SSCCRREEWW

#8 x 3/4"
PHIL FH SMS
Z−103 (4)

GGAASSKKEETT TTAAPPEE
Z−516

GGAASSKKEETT
LLOOOOPP
Z−519

NNOOTT SSHHOOWWNN::
SHIPPING CARTON Z−612 (1)

PLASTIC BAG Z−627 (1)
CORNER GUARD Z−629 (8)
EDGE GUARD Z−630 (20)

MMIINNIIMMAA OONNEE
AMPLIFIER
MO−1

SSPPEEAAKKEERR MMOOUUNNTTIINNGG
CCLLAAMMPP

Z−208 (4)

BBOOLLTT

5/16"−18 x 1 1/2"
SOCKET HEAD CAP SS
Z−105 (4)

SSCCRREEWW
#8 x 3/4"
PHIL PH SMS
Z−101 (10)

BAG END Loudspeakers 22N272 Pepper Rd. Lake Barrington, Illinois 60010 USA Phone [phone] Fax [phone]

ABOUT MINIMA ONE AMPLIFIER
TECHNOLOGY The Minima One amplifier is

both a hi fidelity and a high efficiency amplifier.
More than 80% efficient the Minima One 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 requires no cooling
fan. Incorporating patented technology the com­parison circuit of the Minima One corrects every
single cycle to drive error to zero at the end of
each cycle. On average every 4 microseconds
the one cycle modulator transforms and ampli­fies the input signal into the ideal natural pulse
width modulation. Switching at 250KHz with
the single cycle error correction insures
extremely low distortion and high reliability.

The power factor corrected AC power input
automatically and continuously adapts to any
voltage between 88 and 270 volts. The Minima
One is convenient to power and stable to use
on any power grid in the world.

-

US Patents 5,278,490 and 6,084,450

95

50

8

-6dB Freq.

Apply 12 V DC

- +

to mute

88-270 VAC

1200 W max draw

Thru

In

Modular Sound Systems
Barrington, Illinois USA

Minima one

Level

Cal

1

3

2

3

1

2

Limit

Fault

On

modular amplifier