Owner's Manual

1/2
AtlasSound.com
TELEPHONE: [phone]
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SM8SUB70 & SM12SUB70
Surface Mount 8" & 12" Subwoofer Systems
1601 JACK MCKAY BLVD.
ENNIS, TEXAS 75119 U.S.A.
©2009 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P. All other trademarks are the property of their respective owners. All specs are subject to change without notice. ATS001614 RevE 5/12
General Description
The Atlas Sound SM8SUB70 and SM12SUB70 are designed for 8ȍ and 70.7V
distributed audio applications where low frequency enhancement is desired. These
models feature a unique, compact cabinet design with multiple
1
⁄4"-20 inserts to
allow easy suspension or wall mounting.
The SM8SUB70 and SM12SUB70 include built in 18dB / octave three-pole passive
crossover network coupled to a long-excursion 8" and 12" woofers housed in a
multi-angle wood enclosure system. The passive crossover eliminates the need for
a separate crossover or dedicated amplifier to power the speaker.
Other Features Include
• Multiple
1
⁄4"-20 inserts, providing fly points for a variety of mounting
configurations
• Includes internal, high efficiency, 60 watt 70.7V / 100V transformer
(may be bypassed for 8ȍ operation)
• Barrier strip input for 70.7V / 100V / 8ȍ or parallel 4 pole Speak-On
™
input
(for 8ȍ operation only)
• Unique input panel allows use of standard 4" square box cover
(Raco 753 or eq.) for applications where flex conduit is required for termination
• Fuse protection
• Attractive, yet heavy-duty grille assembly
• Durable, rough-coat finish
• Optional bracket for wall mounting
• Omnimount
™
compatible
Applications
• High-level foreground music systems
• General live sound reinforcement (installed or portable)
Unpacking
As part of our commitment to providing you the highest quality product possible we
make sure every Atlas Sound product is carefully tested and inspected before being
shipped from our factory. Please inspect your loudspeaker for any damage that may
have occurred during shipping. In the event of shipping damage notify your freight
carrier immediately.
Amplifier Considerations for 8ȍ Operation
PLEASE NOTE: The input barrier strip includes a jumper which when removed acti-
vates the 8ȍ input on the barrier strip and the Speak-On
™
jacks.
Consult your amplifier owner’s manual to confirm power output at the rated imped-
ance. Atlas Sound speaker system specifications list RMS power handling. As
a reference, peak power = RMS x 1.414. These ratings should be considered in
selecting the best amplifier to power the speaker system.
For general use, amplifier output should match or exceed the RMS rated power of
the speaker system.
For increased headroom and dynamic reproduction, the amplifier’s output should
match or exceed the peak power rating of the speaker system.
In situations where experienced professionals are operating the speaker system
with proper limiting and frequency control devices inserted into the signal path and
adjusted properly, amplifier output may meet, but should not exceed 2X the RMS
power rating of the speaker system.
SM8SUB70
SM12SUB70
Specifications
Hook-up
For 70.7V terminations a barrier strip is provided to accommodate (2) #14 stranded
cables. All tap selections are clearly marked on the input cup. Connection is made
to the common terminal (-) and the desired power tap (+).
This barrier strip also includes a jumper which should only be removed to activate
the 8ȍ input on the barrier strip and the Speak-On
™
jacks.
The pins of the 2 Speak-On
™
sockets identified on the rear of the input panel are
paralleled for connecting additional subwoofers.
Pin 2+ is Positive
Pin 2- is Negative
Pins 1+ and 1- are looped through.
For a list of Neutrik (Speak-On
™
) distributors, see http://www.neutrik.com/
Please note that the input terminal cup includes corner threaded inserts to accom-
modate standard four square electrical box cover (RACO #753 or equivalent). The
cover allows for conduit connections directly to the input cup.
Model SM8SUB70 SM12SUB70
Frequency Response (±3dB) 45Hz – 125Hz (±6dB) 45Hz – 125Hz (±6dB)
Power Handling 150 Watts RMS 150 Watts RMS
Transformer Taps 7.5, 15, 30, & 60 Watts & 81 7.5, 15, 30, & 60 Watts & 81
Sensitivity (1W / 1M) 89dB 89dB
Dispersion Omni Omni
Cossover Type 18dB / Octave 18dB / Octave
Cossover Frequency 120Hz 120Hz
Woofer 8", 8Ω Long Excursion 12", 81 Long Excursion
Top Plate Thickness .186" (4.7mm) .186" (4.7mm)
Height 15.5" (394mm) 19.0" (483mm)
Width 10.63" (270mm) 14.5" (368mm)
Depth 10.38" (264mm) 14.06" (357mm)
Weight 19 lbs (8.62kg) 36 lbs (11.79kg)
Side View
Front View
<-Front
WIDTH
14 " (368mm)
1
/
2
19" (483mm)
HEIGHT
DEPTH
14 " (357mm)
1
/
16
WIDTH
10 " (270mm)
5
/
8
15 " (394mm)
1
/
2
HEIGHT
DEPTH
10 " (264mm)
3
/
8
Side View
<-Front
Front View