Industry Standard Commercial Attenuators
Industry Standard Auto Transformer
AT Series UL listed high-quality auto transformer series provides the advantages of excellent frequency response,
low insertion loss and reliable performance for volume control application in 25V and 70.7V systems. Attenuation is
accomplished in ten steps plus positive off position. (No stop between maximum and off position to prevent switch
damage). Contacts are silver plated for noise-free operation. Includes stainless steel plate, stamped and filled dial
scale with skirted black knob.
AT10
shown in
standard backbox
AT10/35/100
Series
E408100
Model UL Power
AT10
AT35
AT100
813 & 2043 10 watts 3 dB 27 dB .4 dB 1 gang
813 & 2043 35 watts 3 dB 27 dB .4 dB 1 gang
813 & 2043 100 watts 3 dB 27 dB .4 dB 1 gang
Rating
Attenuation
Per Step
Total
Attenuation
Insertion
Loss
Plate
Size
Plate
Type
Stainless NA
Stainless NA
Stainless NA
Plate
Color
AT Decora Series Include White and Ivory Decora Style plastic plates, with matching skirted knobs.
Model UL Power
AT10D
AT35D
AT100D
813 & 2043 10 watts 3 dB 33 dB .4 dB 1 gang Plastic Decora
813 & 2043 35 watts 3 dB 27 dB .6 dB 1 gang Plastic Decora
813 & 2043 100 watts 3 dB 27 dB .6 dB 1 gang Plastic Decora
Rating
Attenuation
Per Step
Total
Attenuation
Insertion
Loss
Plate
Size
Plate
Type
Plate
Color
White/Ivory
White/Ivory
White/Ivory
Auto Transformer with Precision Level Control
E408-100 Specially designed for attenuation in masking and sound reinforcement systems where fine tuning of level
control is required. The E408-100 employs a ten-position, non-shorting rotary switch without stop. Attenuation rate is
1.5 dB per step. (All other specifications are the same as the AT Series including the UL listing).
Model UL Power
E408-100 813 & 2043 100 watts 1.5 dB 15 dB .6 dB 1 gang Stainless NA
Rating
Attenuation
Per Step
Total
Attenuation
Insertion
Loss
Plate
Size
Plate
Type
Plate
Color
Priority Paging Option
PA Series Priority paging feature bypasses the effect of the attenuator to provide program level selection of
individual emergency and paging signals at the amplifier. This option is available on all AT Series attenuators. The
SPDT relay is operated with 24VDC at 10 mA. Includes protective relay cover to ensure lasting trouble-free performance. (All other specifications except for dimensions are the same as AT Models.)
AT10D (decora)
RM Series
Rack Mount Option
RM Series For attenuation convenience of rack-mounted equipment in cabinets and consoles, the AT Series and
E408 Series attenuators are available without mounting plate for rack panel installation. Attractive matte black polycar-
bonate dial scale overlay with adhesive backing replaces the mounting plate, skirted black knob included. Overlay size
is 2" square (51 mm). (To order, simply add RM after the selected attenuator model number. Example: AT10-RM or
AT10-PARM.) (Dial scale overlays to retrofit existing installations are available, see hardware section Model HX23.)
For easy rack mounting of RM Series attenuators, see model ATPLATE-052, Section 4, page 54.
Model Plate Height Depth Attenuator Height Plate Width Attenuator Width
AT10
AT10-PA
AT35
AT35-PA
AT100
AT100-PA
E408-100
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 21⁄8" (54 mm) 23⁄4" (70 mm) 23⁄4" (70 mm) 13⁄4" (44 mm)
41⁄2" (114 mm) 25⁄8" (67 mm) 21⁄16" (52 mm) 23⁄4" (70 mm) 25⁄16" (59 mm)
52
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Atlas Sound WhisperTouch® Volume Controls
Switched WhisperTouch™ Impedance Matching Volume Controls
Switched WhisperTouch volume controls provide clear, distortion-free music reproduction for commercial distributed
systems or "Whole House" audio designs.
These volume controls feature impedance-matching (8 Ω versions only) to protect the amplifier and balance the audio
signal, fine-tune level control to adjust low listening levels to the perfect setting, and an easy-grip, low profile knob.
The knob features smooth detents and make-before-break contacts for smooth transition when changing volume
settings. Attenuation is accomplished in 10 steps. All models have frequency response of 20 Hz – 20 kHz (-3 dB, +0).
Units include an on / off switch and indicator light. An internal "smart" relay switch automatically puts speakers
into "stand by" mode making them "available" rather than indiscriminately active when the audio system is powered on. Simply touching the switch accesses audio. A modest sized indicator light provides quick visual status
– (green=standby, red=active) Models require a separate 18-gauge, 2 conductor stranded cable to power the
internal relay in addition to the loudspeaker cable. An external power supply, PS-M12, is recommended for 1–3
WhisperTouch units, or PS24-20 (See Page 64) for up to 18 units.
For installation, either a backless E.O. box or sealed box with 18 or 20 in3 volume (Carlon® B120A or equivalent)
is required. Standard or Decora plate styles and available colors vary by model – see chart for details. Decora trim
plates not included.
Four
Model
Series
DWS-8(I/W)
SWS-8I
DWSM-15(I/W) —
SWS-15W —
DSUMS-8W 8 Ω
SSUMS-8I 8 Ω
Impedance Voltage Power
8 Ω — 50 watts Decora Stereo, Switched 20 in3 E.O. Box
8 Ω — 50 watts Standard Stereo, Switched
Rating
70.7V 15 watts Decora Mono, Switched 18 in3 E.O.Box
70.7V 15 watts Standard Stereo, Switched
— 25 watts Decora Left, Right, Summing Switched 20 in3 E.O. Box
— 25 watts Standard Left, Right, Summing Switched
Plate
Style
Type
Requires Attenuation
& Power Supply
& Power Supply
& Power Supply
10 Steps,
22.5 dB Total
Power Supplies for Switched WhisperTouch
PS-M12 Unit is a compact UL-listed 12VDC, 300 mA power supply with a 6' cord. The required input voltage is
120V. Supply includes a 1⁄8" mini-plug for direct connection to the M-1CB4 connector block (powers up to four F-1
flashers) or for use with up to three Switched WhisperTouch™ volume controls.
Model Powers Up To Input Output (Nom.)
PS-M12
3 Switched WhisperTouch 120VAC 12VDC @ 300 mA
Commercial Stereo Attenuators
DAT Series Atlas Sound offers traditional autoformer controls to provide excellent stereo performance and maxi-
mum speaker-handling capability. Models include positive off and full-power pass through at the maximum setting.
Contacts are make-before-break for smooth transition. Models with 8 Ω impedance are suitable for residential stereo
and voice-coil circuit application. Models for 25V or 70.7V use provide level control in distributed constant-voltage
systems. Single-gang models mount standard E.O. boxes 21⁄2" deep. Includes both white and ivory knobs, inserts and
trim plates.
• Choose DAT8ST to Control Speaker Volume when Impedance Matching is Not Necessary Such as Single-pair
Installations or when Multi-channel Amplifiers are Used for Individual Zones. Combine DAT8ST with a Separate
Impedance-Matching Switching Device (AST Series) to Design a System with Multiple Loudspeaker Pairs.
• Choose DAT35ST70 for Control of Distributed Stereo Zones in 25V / 70.7V Systems.
DWT / DSUM Series
(Shown with cover plate)
Model
Series
DAT8ST (I/W)
DAT35ST70 (I/W)
* Models have two steps of 6 dB before off. Note: Attenuation curve is steeper for a 25V line.
** Models have one step of 6 dB before off.
Note: Decora® is a Registered Trademark of Leviton Corporation.
800.876.3333
Power
Rating
RMS / Channel
50 watts
35 watts
System Attenuation Insertion
Impedance Voltage Per Step Total
8 Ω — 3 dB* 30 dB .5 dB 1 gang
— 25V or 70.7V 3 dB** 27 dB .5 dB 1 gang
Loss
Plate
Size
DAT8ST
DAT35ST70
53
(Shown with rack brackets)
ASL-6A
Impedance-Matching Speaker Switching Systems
Impedance-Matching Speaker Selectors
For use with 8 Ω Applications Only, NOT 70.7V Applications.
ASL-6A Impedance-matching loudspeaker switching system provides control of up to six loudspeaker pairs posi-
tioned in multiple room applications. All volume controls for each loudspeaker pair are located on the front panel
for easy access. Attenuation is accomplished in 10 steps. Units accommodate any combination of 8 Ω and/or 16 Ω
loudspeakers. Choose ASL-6A to control speakers in retrofit or pre-wire installations where speaker wiring goes
directly to the main equipment cabinet; not to individual volume controls. ASL model offers individual speaker volume
controls with individual A/B source selection and separate on / off controls for each loudspeaker pair. Unit features a
mar-resistant black finish. Dimensions are 17" Width x 15⁄8" Height x 57⁄8" Depth and can be shelf or 19" rack-mounted
(brackets included). Wire capacity is 14-gauge – 24-gauge.
AST-6 Impedance-matching loudspeaker switching system provides control of up to six loudspeaker pairs positioned
in multiple room applications. Controls for each loudspeaker pair are located on the front panel for easy access. Unit
accommodates any combination of 8 Ω and/or 16 Ω loudspeakers. Use AST Series to offer additional functionality to
systems using traditional (non-WhisperTouch®) volume controls such as the DAT8ST. AST devices include separate
on / off controls for each loudspeaker pair and one A-B source selector switch for overall system control. Units feature
a mar-resistant black finish. Dimensions are 17" Width x 15⁄8" Height x 57⁄8" Depth and can be shelf or 19" rack-mounted
(brackets included). Wire capacity is 14-gauge – 24-gauge.
AST-6
SG-XLR-M1 SG-XLR-F2
SG-NL4MP-2 SG-QTRSL-F1
Model Speaker Capacity Speaker Selector Volume Controls A/B Source Capacity Power Handling
ASL-6A
AST-6
* Per channel, 8 Ω load, single room (measured @ 50 Hz continuous)
6 Pair 6 on/off
6 Pair 6 on/off
6 6 Individual 70/210 watts
— 1 System 40/120 watts
RMS / Audio*
Wall Plates with Connectors
Single Gang Stainless Steel Wall Plates
Professional appearance with easy and cost-efficient installation, Atlas Sound wall plates are offered in nine models
with a variety of industry standard connectors.
Models include mounting holes on standard box mount center [39⁄32" (83 mm)] and plate mounting hardware.
Model Description
SG-XLR-F1
SG-XLR-F2
SG-XLR-M1
SG-XLR-M2
SG-NL4MP-1
SG-NL4MP-2
SG-QTRSL-F1
SG-QTRSL-F2
SG-38GH
Single Gang Stainless Steel Plate with (1) Female 3 pin XLR
Single Gang Stainless Steel Plate with (2) Female 3 pin XLR
Single Gang Stainless Steel Plate with (1) Male 3 pin XLR
Single Gang Stainless Steel Plate with (2) Male 3 pin XLR
Single Gang Stainless Steel Plate with (1) NL4MP 4-Pole connector
Single Gang Stainless Steel Plate with (2) NL4MP 4-Pole connector
Single Gang Stainless Steel Plate with (1) Female Locking TRS connector
Single Gang Stainless Steel Plate with (2) Female Locking TRS connector
3
Single Gang Stainless Steel Plate
⁄8" Hole & Grommet
Receptacles with Connectors Installed
FB4XLRF floor box assembly provides a simple solution for recessed mic inputs. The unit is designed for easy installa-
tion into wood stages and platforms. Four female XLR connectors are recessed and slant loaded into the enclosure. A
hinged steel cover plate provides protection for cable connectors. Connectors are standard "D Sub" type and may be
easily removed to allow substitution of other "D Sub" devices. Connector pocket requires 5" square floor cutout. Trim
FB4XLRF
FB4CPB
54
plate dimensions are 8" square. For new or retrofit concrete floor installation use optional enclosure model FB4CPB.
Microphone Floor Boxes
AtlasSound.com
Hardware Accessories
Model Description
HXLP-3-11
HXLP-3-12
HX11-P
HX12-R
HX21-B
HX22-W
HX23
HX25-2
HX26-2
HX31-345
HX41-50
HX76
ATPLATE-052 The new Atlas Sound AT Plate is perfect for rack mount applications where attenuators are required.
The Atlas Sound AT Plate, a 2 RU 14-gauge plate pre-punched to accommodate up to six Atlas Sound rack mount
attenuators. Attractive black filler plugs are provided for applications where the AT Plate will not be fully "loaded". The
plate is finished in flat black epoxy to better blend in with other rack mount equipment.
Cable connector, Female 3 Conductor; A3F or Equal
Cable connector, Female 3 Conductor; A3M or Equal
1
SPDT Momentary Push Button Switch,
2 Pole, 6 Position Rotary Switch Continuous Rotation; 60˚ Indexing; 3⁄8" Bushing Length;
3
⁄8" Shaft Length, Includes Hardware
1
Skittered Knob; Black; 1
Skittered Knob; White; 1
2" x 2' Poly carbonate Dial Scale.
Double Gang S/S Plate; Dial Scale Stamped and Paint Filled 3⁄5" Center Mount Hole,
Mounts to Standard E.O. Box; With Hardware
Double Gang S/S Plate with Dial Scale for Attenuator and 6 Position Rotary Switch
3" Speaker with 45
50 Ω Wirewound Potentiometer, 3 watt. Continuous Rotation. 3⁄8" Bushing Length;
3
⁄8" Long Flatted Shaft. Includes Mounting Hardware
Felt Tabs (100 pieces)
⁄4" Diameter Fits 1⁄4 Shaft; One Set Screw
1
⁄4" Diameter Fits 1⁄4 Shaft; One Set Screw
Ω Voice Coil. Magnet Weight 1.47 oz
⁄4 Amp Contacts, Black Button, Hardware
3
⁄8" Center Hole. Black Finish
HX41/42
HXLP Series
HX11-P
Four
HX24-1
HX25-2
HX12-R
HX21-B
HX23
HX26-2
HX31-345
HX76
800.876.3333
55
Model Description
SM52CBRKT-B
SM52CBRKT-W
SM52GRILL-B
SM52GRILL-W
SM52KNOB-B
SM52KNOB-W
SM52TWEETER
SM52WOOFER
SM42GRILL-B
SM42GRILL-W
SM42KNOB-B
SM42KNOB-W
SM82CBRKT-B
SM82CBRKT-W
SM82GRILL-B
SM82GRILL-W
SM82HFDRV
SM82KNOB-B
SM82KNOB-W
SM82WOOFER
SMTERMCVR-B
SMTERMCVR-W
SM52TWEETER
FAP40TDRV
SM42CBRKT-B
SM42CBRKT-W
FAPVRAIL
FAPPHX
FAP40TGRILL
FAP40TDL
FAP40TDLS
FAP40TDRV
FAP40TTB
FAP42TGRILL
FAP42/62TDL
FAP42/62TDLS
369551
SM52 C-Bracket - Black
SM52 C-Bracket - White
SM52 Grille w/ Logo - Black
SM52 Grille w/ Logo - White
SM52 Knobs - Black - Each
SM52 Knobs - White - Each
SM52 Tweeter Driver Assembly
1
⁄4" Woofer Poly Cone
SM52 5
SM42 Grille w/ Logo - Black
SM42 Grille w/ Logo - White
SM42 Knobs - Black - Each
SM42 Knobs - White - Each
SM82 C-Bracket - Black
SM82 C-Bracket - White
SM82 Grille w/ Logo - Black
SM82 Grille w/ Logo - White
SM82 HF Replacement Driver
SM82 Knobs - Black - Each
SM82 Knobs - White - Each
SM82 8" Woofer Treated Cone
SM Series Terminal Cover - Black
SM Series Terminal Cover - White
SM42 Tweeter Driver Assembly
SM42 4" Woofer
SM42 C-Bracket - Black
SM42 C-Bracket - White
V Rail for All FAP Series Models
Phoenix Connector for All FAP Series Models
FAP40T Grille
FAP40T Dogleg
FAP40T Dogleg Screw
FAP40T Driver
FAP40T Tile Bridge
FAP42TC / FAP42T Grille
FAP42TC / FAP42T / FAP62T Dogleg
FAP42TC / FAP42T / FAP62T Dogleg Screw
FAP42TC / FAP42T Driver
Replacement Speaker Parts
56
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