Small Device Test Enclosures

ETS-Lindgrens Small Device (SD) Test Enclosures provide a free-field environment for making survey and engineering grade measurements on small devices.

ETS-Lindgrens Small Device (SD) Test Enclosures is an acoustic chamber which provides a free-field environment for making survey and engineering grade measurements on small devices. Small device test enclosures are an affordable option when precision grade testing is not required, including acoustic testing for (sound power, sound pressure) levels of automotive components, computer hard drives, fans, pumps, and small mechanical and electric assemblies.

Testing can be conducted using either a single microphone, or a small array of microphones. SD enclosures can also be used with vibration test equipment when required. Four sizes of SD enclosures are available to accommodate most small test objects.

Key Features
  • Acoustically Controlled Test Environment
  • Survey and/or Engineering Grade Measurement
  • Applicable Test Standards:
    • ISO 3746
    • ISO 532B
    • ISO 11201
    • GM W7293
    • Additional Test Standards
  • Production Line Testing
  • Sound Power Testing
  • Transmission Loss Testing
  • Sound Absorption Testing
Product Details
Product Features

Controlled Test Environment

The SD Series isolates and controls acoustic energy to provide the ideal testing environment of small electronics, computer equipment, hearing aids and automotive components.

Survey/Engineering Grade Design

With minimum 10.2 cm (4 in) thick acoustic walls and sound absorbing floor and ceiling, the SD Test Enclosures are ideal for making survey and engineering level measurements on small devices.

Applicable Test Standards

SD Series Test Enclosures meet ISO 3746, ISO 532B, ISO 11201, GM W7293, and additional test standards.

Physical Specifications
Model #Chamber Dims Outside (L x W x H)Chamber Dims Inside (L x W x H)Estimated WeightDoor Dims
(L x W)
Window Dims
(L x W)
Panel Type and Depth
SD91.4 cm x 86.4 cm x 91.4 cm
(36 in x 34 in x 36 in)
71.1 cm x 66.0 cm x 71.1 cm
(28 in x 26 in x 28 in)
352.9 kg
(778 lb)
61.0 cm x 50.8 cm
(24 in x 20 in)
30.5 cm x 30.5 cm
(12 in x 12 in)
AS-A504
10.2 cm (4 in)
SD1111.8 cm x 111.8 cm x 111.8 cm
(44 in x 44 in x 44 in)
91.4 cm x 91.4 cm x 91.4 cm
(36 in x 36 in x 36 in)
618.2 kg
(1,363 lb)
61.0 cm x 61.0 cm
(24 in x 24 in)
30.5 cm x 30.5 cm
(12 in x 12 in)
AS-A504
10.2 cm (4 in)
SD2152.4 cm x 152.4 cm x 162.6 cm
(60 in x 60 in x 64 in)
121.9 cm x 121.9 cm x 132.1 cm
(48 in x 48 in x 52 in)
872.3 kg
(1,923 lb)
91.4 cm x 91.4 cm
(36 in x 36 in)
30.5 cm x 30.5 cm
(12 in x 12 in)
AS-A506
15.2 cm (6 in)
SD3127 cm x 127 cm x 241.3 cm
(50 in x 50 in x 95 in)
106.7 cm x 106.7 cm x 213.4 cm
(42 in x 42 in x 84 in)
1,123.1 kg
(2,476 lb)
81.3 cm x 203.2 cm
(32 in x 80 in)
50.8 cm x 76.2 cm
(20 in x 30 in)
AS-A504
10.2 cm (4 in)

Electrical Specifications
Model #FeaturesOptionsApplicationsSome Applicable Standards
SDFor Testing > 500 Hz
Solid Steel Floor
Cable Ports (2)
Vibration Pads (4)
AS-A504 Walls
Test Stand
5.1 cm (2 in) Melamine Foam
Perforated Interior Floor Skin
Stainless Steel Liner
Light (1)
Quality Control Comparative AnalysisISO 3746
ISO 532B
ISO 11201
SD1For Testing > 500 Hz
Solid Steel Floor
Cable Ports (2)
Vibration Pads (4)
AS-A504 Walls
Light (1)
Test Stand
5.1 cm (2 in) Melamine Foam
Perforated Interior Floor Skin
Stainless Steel Liner
Sound Power and
Sound Pressure of
Auto Parts, Computer Parts, and Small Parts
ISO 3746
ISO 532B
ISO 11201
GMW7293
SD2For Testing > 500 Hz
Solid Steel Floor
Cable Ports (2)
Vibration Pads (2)
AS-A506 Walls
Light(1)
Test Stand
5.1 cm (2 in) Melamine Foam
Perforated Interior Floor Skin
Stainless Steel Liner
Engineering Test of Small PartsISO 3746
ISO 532B
ISO 11201
GMW7293
MS14011
SD3For Testing > 500 Hz
Solid Steel Floor
Cable Ports (2)
Vibration Pads (2)
AS-A504 Walls
Light(1)
Test Stand
5.1 cm (2 in) Melamine Foam
Verification Silencers
Head & Torso Testing
Speech Intelligibility
Codec Scoring
End to End Signal Integrity
ISO 3746
ISO 532B
ISO 11201

Product Options
  • Acoustically Engineered Ventilation System
  • Test Stands (Not Available on SD3)
  • Interior Light
  • Absorptive Mini Wedges
  • Interior Perforated Floor
  • Stainless Steel Construction
  • Light (SD Only)
  • Ventilation Silencers (SD3 Only)
  • For Custom Sizes and Configurations, Contact ETS-Lindgren