Atlas Sound FAP42T Volantino

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 pow-
ered 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 in

3

 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. 

DWS-8(I/W)

8 Ω

—

50 watts

Decora

Stereo, Switched

20 in

3

 E.O. Box  

& Power Supply

10 Steps,  
22.5 dB Total

SWS-8I

8 Ω

—

50 watts

Standard

Stereo, Switched

DWSM-15(I/W)

—

70.7V

15 watts

Decora

Mono, Switched

18 in

3

 E.O.Box 

& Power Supply

SWS-15W

—

70.7V

15 watts

Standard

Stereo, Switched

DSUMS-8W

8 Ω

—

25 watts

Decora

Left, Right, Summing Switched

20 in

3

 E.O. Box  

& Power Supply

SSUMS-8I

8 Ω

—

25 watts

Standard

Left, Right, Summing Switched

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.

PS-M12

3 Switched WhisperTouch

120VAC

12VDC @ 300 mA

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 2

1

⁄

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.

DAT8ST (I/W)

50 watts

8 Ω

—

3 dB*

30 dB

.5 dB

1 gang

DAT35ST70 (I/W)

35 watts

—

25V or 70.7V

3 dB**

27 dB

.5 dB

1 gang