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 S

b

121 300-Watt Nonpowered Bass Module

S

b

121 300-Watt Nonpowered Bass Module

SPEAKERS- Portables

Part Number 534718 — 9744

600 Cecil Street, Buchanan, MI 49107

616/695-6831, 616/695-1304 Fax

©EVI Audio 1997 • Litho in U.S.A.

Specifications:

Axial Frequency Response (swept

sine-wave input, 4 volts at 10 feet on
axis, anechoic environment, normal-
ized for
1 watt/1 meter; see Figure 1):
50-500 Hz

Low-Frequency 3-dB-Down Point:

50 Hz

Usable Low-Frequency Limit with

Xp200A Controller (10-dB-down
point):
43 Hz

Half-Space Reference Efficiency:

4.0%

Long-Term Average Power-Handling

Capacity per ANSI/EIA RS-426-A
1980 (see Power-Handling Capacity
section)
300 watts

Maximum Acoustic Output:

11.1 watts

Sensitivity (SPL at 1 meter, 1 watt

input, anechoic environment, band-
limited pink-noise signal, 50 to 200
Hz):
95 dB

Dispersion Angle Included by 6-dB-

Down Points on Polar Responses:
Essentially omnidirectional

Distortion, 0.1 Full Power Output,

Second Harmonic,

100 Hz:  5.3%

Third Harmonic,

100 Hz:  1.9%

Distortion, 0.01 Full Power Output,

Second Harmonic,

100 Hz:  1.9%

Third Harmonic,

100 Hz:  <0.01%

Transducer Complement:

DL12Sx 12-inch woofer

Box-Tuning Frequency:

60 Hz

Recommended Crossover Frequency:

100 to 200 Hz (12-dB-per-octave
minimum slope)

Impedance,

Nominal:

8 ohms

Minimum:

6 ohms

Input Connectors:

Paralleled Neutrik Speakon

®

 NL4MP

and 

1

/

4

-in. phone jack (allows parallel-

ing of multiple speakers)

Enclosure Materials and Colors:

Black polypropylene structural foam

Supplied Accessories:

Additional Neutrik Speakon

® 

 NL4MP

and 

1

/

4

-in. phone jack (see Sb121

Connections section); Suspending
System 200

TM

 Loudspeakers instruc-

tion manual

Optional Accessories:

100BK mounting stand
Mb100 eyebolt attachment kit
Mb200 installation kit
Mb300 horizontal array kit
OmniMount

®

 Series 100 mounting

hardware

1

VPCSx protective cover
PDSx padded cover
F200 monitor foot
Other Product Available for Enhance-
ment of Sb121 Performance:
Xp200A electronic system controller

Attachment Points:

Four metric insert (M8 x 1.25) (see
Figure 2 and Suspending Sb121
Enclosures section)

Dimensions (see Figure 2),

Height:

586 mm (23.1 in.)

Width:

429 mm (16.9 in.)

Depth:

312 mm (12.3 in.)

Net Weight:

14.6 kg (32.2 lb)

Shipping Weight:

16.0 kg (35.3 lb)

_____________________

1. Available through OmniMount Systems, Inc. OmniMount

®

is a registered trademark of OmniMount Systems, Inc.

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