Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
| Product status | Preferred  | 
		
|---|---|
| Description | Balanced armature receiver  | 
		
| Frequency response curve | Woofer – Midrange  | 
		
| Configuration | Dual  | 
		
| Diameter / length [mm] | 7.3  | 
		
| Width [mm] | 3.61  | 
		
| Thickness [mm] | 3.1  | 
		
| DC resistance [Ohm] | 105  | 
		
| Sensitivity @ 1kHz, 100 mV, in coupler [dB SPL] | 100  | 
		
| Vented | No  | 
		
The GD revolutionizes receiver design to maximize output while minimizing vibration. It is well suited for low-mid power custom, receiver-in-canal, and mini-BTE applications that require the lowest vibration possible. The GD offers best in class vibration performance helping to increase gain before feedback in all applications.
| Product status | Preferred  | 
		
|---|---|
| Description | Balanced armature receiver  | 
		
| Frequency response curve | Woofer – Midrange  | 
		
| Configuration | Dual  | 
		
| Diameter / length [mm] | 7.3  | 
		
| Width [mm] | 3.61  | 
		
| Thickness [mm] | 3.1  | 
		
| DC resistance [Ohm] | 105  | 
		
| Sensitivity @ 1kHz, 100 mV, in coupler [dB SPL] | 100  | 
		
| Vented | No  | 
		
The GD revolutionizes receiver design to maximize output while minimizing vibration. It is well suited for low-mid power custom, receiver-in-canal, and mini-BTE applications that require the lowest vibration possible. The GD offers best in class vibration performance helping to increase gain before feedback in all applications.
| Product status | Preferred  | 
		
|---|---|
| Description | Balanced armature receiver  | 
		
| Frequency response curve | Woofer – Midrange  | 
		
| Configuration | Dual  | 
		
| Diameter / length [mm] | 7.3  | 
		
| Width [mm] | 3.61  | 
		
| Thickness [mm] | 3.1  | 
		
| DC resistance [Ohm] | 105  | 
		
| Sensitivity @ 1kHz, 100 mV, in coupler [dB SPL] | 100  | 
		
| Vented | No  | 
		
The GD revolutionizes receiver design to maximize output while minimizing vibration. It is well suited for low-mid power custom, receiver-in-canal, and mini-BTE applications that require the lowest vibration possible. The GD offers best in class vibration performance helping to increase gain before feedback in all applications.