7.4.4.9 Pset_AudioVisualApplianceTypeSpeaker
7.4.4.9.1 Semantic definition
An audio-visual speaker is a device that converts amplified audio signals into sound waves. HISTORY: Added in IFC4.
7.4.4.9.2 Applicable entities
- IfcAudioVisualAppliance/SPEAKER
 - IfcAudioVisualApplianceType/SPEAKER
 
7.4.4.9.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| SpeakerType | IfcPropertyEnumeratedValue | PEnum_AudioVisualSpeakerType | 
 Indicates the type of speaker.  | 
|
| SpeakerMounting | IfcPropertyEnumeratedValue | PEnum_AudioVisualSpeakerMounting | 
 Indicates how the speaker is designed to be mounted.  | 
|
| SpeakerDriverSize | IfcPropertyTableValue | IfcPositiveLengthMeasure/IfcIdentifier | 
 Indicates the number of drivers and their sizes.  | 
|
| FrequencyResponse | IfcPropertyTableValue | IfcSoundPowerMeasure/IfcFrequencyMeasure | 
 Indicates the output over a specified range of frequencies.  | 
|
| Impedence | IfcPropertySingleValue | IfcFrequencyMeasure | 
 Indicates the speaker impedence.  |