ED/FED Series

Catalog

SPEAKERS & TRANSDUCERS BALANCED ARMATURE SPEAKER

Part	Shape	Efficiency - dBA	Impedance	Efficiency - Type	Technology	Port Location	Termination	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Type	Frequency Range [Min]	Frequency Range [Max]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Material - Magnet
Knowles Syfer ED-21912-000	Rectangular	106 dBA	725 Ohms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer FED-23732-I34	Rectangular	102 dBA	680 Ohms		Magnetic		Solder Pads			Receiver Balanced Armature	200 Hz	4 kHz					Ferrite
Knowles Syfer ED-23147-000	Rectangular	102.5 dBA	87 Ohms	Sound Pressure Level (SPL)	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	4.4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-27045-000	Rectangular	104 dBA	395 Ohms	Sound Pressure Level (SPL)	Magnetic	Side	Wire Leads			Receiver Balanced Armature	20 Hz	20 kHz
Knowles Syfer ED-27235-000	Rectangular				Magnetic		Solder Pads			Receiver Balanced Armature
Knowles Syfer ED-26565-000	Rectangular	102.5 dBA	128 Ohms		Magnetic	Side	Solder Pads	0.119 in	3.02 mm	Receiver Balanced Armature	200 Hz	4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-23004-000	Rectangular	107 dBA	1.5 kOhms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer FED-26792-I02	Rectangular	102.5 dBA	100 Ohms	Sound Pressure Level (SPL)	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	4 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm	Ferrite
Knowles Syfer ED-21983-000	Rectangular	106 dBA	725 Ohms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm
Knowles Syfer ED-21915-000	Rectangular	106 dBA	5.9 kOhms	Sensitivity	Magnetic	Top	Solder Pads	0.248 "	6.3 mm	Receiver Balanced Armature	200 Hz	5 kHz	0.248 in	0.169 "	6.3 mm	4.29 mm