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Balanced Armature Speakers & Transducers

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Type = Balanced Armature

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Part #

Speakers & Transducers PREMUIM BANDWIDTH WARM BASS, HIGH OUTP

GK-31732-000
Knowles
1: $75.42
299In Stock

Mfr. Part #
GK-31732-000

Mouser Part #
721-GK-31732-000

Knowles

Speakers & Transducers PREMUIM BANDWIDTH WARM BASS, HIGH OUTP

Datasheet

299In Stock

$75.42

$58.93

$53.62

$51.46

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

131 dBA

23 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

9.47 mm

7.18 mm

6.9 mm

Speakers & Transducers Balanced Armature Speaker

ED-21912-000
Knowles
1: $30.40
771In Stock

Mfr. Part #
ED-21912-000

Mouser Part #
721-ED-21912-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

771In Stock

$30.40

$23.35

$21.17

$19.74

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

800 Hz

117 dBA

725 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3.02 mm

Speakers & Transducers Balanced Armature Speaker

ED-29689-000
Knowles
1: $30.40
807In Stock

Mfr. Part #
ED-29689-000

Mouser Part #
721-ED-29689-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

807In Stock

$30.40

$23.35

$21.17

$19.74

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

500 Hz

128 dBA

7.1 Ohms

Rectangular

Solder Pad

6.3 mm

4.29 mm

2.97 mm

Speakers & Transducers Balanced Armature Speaker

ED-26805-000
Knowles
1: $30.40
98In Stock

Mfr. Part #
ED-26805-000

Mouser Part #
721-ED26805000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

98In Stock

$30.40

$23.35

$21.17

$19.74

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

123 dBA

28 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

6.3 mm

4.3 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

BK-28507-000
Knowles
1: $31.33
375In Stock

Mfr. Part #
BK-28507-000

Mouser Part #
721-BK-28507-000

Knowles

Speakers & Transducers Balanced Armature Speaker

375In Stock

$31.33

$24.16

$21.90

$20.42

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6 kHz

126 dBA

13.3 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

7.87 mm

5.59 mm

4.01 mm

Speakers & Transducers RECEIVER

GV-32830-000
Knowles
1: $96.08
92In Stock

Mfr. Part #
GV-32830-000

Mouser Part #
721-GV-32830-000

Knowles

Speakers & Transducers RECEIVER

Learn More

Datasheet

92In Stock

$96.08

$73.54

$67.78

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

113.5 dBA

28.125 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

7.87 mm

5.59 mm

Speakers & Transducers Balanced Armature Speaker

FC-26171-000
Knowles
1: $42.65
81In Stock

Mfr. Part #
FC-26171-000

Mouser Part #
721-FC-26171-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

81In Stock

$42.65

$32.30

$29.11

$27.06

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

104 dBA

225 Ohms

Rectangular

Solder Pad

5.18 mm

3.54 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

BK-21610-000
Knowles
1: $31.33
84In Stock

Mfr. Part #
BK-21610-000

Mouser Part #
721-BK-21610-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

84In Stock

$31.33

$24.16

$21.90

$20.42

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Board Mount

4 kHz

119.75 dBA

145 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4.01 mm

Speakers & Transducers Balanced Armature Receiver

RAB-32037-000
Knowles
1: $18.49
85In Stock

Mfr. Part #
RAB-32037-000

Mouser Part #
721-RAB-32037-000

Knowles

Speakers & Transducers Balanced Armature Receiver

Learn More

Datasheet

85In Stock

$18.49

$14.33

$13.04

$12.28

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.2 kHz

101 dBA

124 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.28 mm

2.96 mm

2.58 mm

Speakers & Transducers RECEIVER

WBFK-33649-000
Knowles
1: $31.41
83In Stock

Mfr. Part #
WBFK-33649-000

Mouser Part #
721-WBFK-33649-000

Knowles

Speakers & Transducers RECEIVER

83In Stock

$31.41

$23.68

$21.46

$20.02

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

Rectangular

Solder Pad

- 17 C

+ 63 C

5 mm

2.73 mm

1.98 mm

Speakers & Transducers RECEIVER

GU-32829-000
Knowles
1: $53.47
86In Stock

Mfr. Part #
GU-32829-000

Mouser Part #
721-GU-32829-000

Knowles

Speakers & Transducers RECEIVER

Learn More

Datasheet

86In Stock

$53.47

$40.97

$36.93

$34.32

$33.02

Min.: 1
Mult.: 1

Receivers

Balanced Armature

70 Hz to 9.9 kHz

113.5 dBA

17 Ohms

- 40 C

+ 63 C

7.87 mm

5.59 mm

Speakers & Transducers Balanced Armature Speaker

FC-23265-000
Knowles
1: $42.65
62In Stock

Mfr. Part #
FC-23265-000

Mouser Part #
721-FC-23265-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

62In Stock

$42.65

$32.30

$29.11

$27.06

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

100 dBA

1.055 kOhms

Rectangular

Solder Pad

5.18 mm

3.54 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

FK-23451-000
Knowles
1: $50.46
42In Stock

Mfr. Part #
FK-23451-000

Mouser Part #
721-FK-23451-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

42In Stock

$50.46

$38.90

$35.07

$32.59

$31.36

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

107 dBA

630 Ohms

Rectangular

Solder Pad

5 mm

2.73 mm

1.98 mm

Speakers & Transducers 7.87 X 5.59 X 4.01MM 126 SENS, 1S PORT

EF-26329-000
Knowles
1: $32.12
22In Stock

Mfr. Part #
EF-26329-000

Mouser Part #
721-EF-26329-000

Knowles

Speakers & Transducers 7.87 X 5.59 X 4.01MM 126 SENS, 1S PORT

Datasheet

22In Stock

$32.12

$24.55

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

1 kHz

126 dBA

150 Ohms

Rectangular

Solder Pad

7.87 mm

5.59 mm

4.06 mm

Speakers & Transducers WIDE BANDWIDTH, WARM BASS, HIGH OUTPUT

HE-31751-000
Knowles
1: $55.88
23In Stock

Mfr. Part #
HE-31751-000

Mouser Part #
721-HE-31751-000

Knowles

Speakers & Transducers WIDE BANDWIDTH, WARM BASS, HIGH OUTPUT

Datasheet

23In Stock

$55.88

$43.48

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

10 kHz

132 dBA

118.1 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

9.47 mm

7.18 mm

7.26 mm

Speakers & Transducers Balanced Armature Speaker

FC-30814-P127
Knowles
1: $40.45
11In Stock

Mfr. Part #
FC-30814-P127

Mouser Part #
721-FC30814P127

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

11In Stock

$40.45

$30.91

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

106.5 dBA

51.8 Ohms

Rectangular

Wire Leads

5.17 mm

3.53 mm

3 mm

Speakers & Transducers Balanced Armature Speaker

CI-22955-000
Knowles
1: $36.35
583In Stock

Mfr. Part #
CI-22955-000

Mouser Part #
721-CI-22955-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

583In Stock

$36.35

$27.99

$25.46

$23.73

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

5.5 kHz

133 dBA

80 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

9.5 mm

7.2 mm

4.1 mm

Speakers & Transducers RECEIVER

RAN-33860-B148
Knowles
1: $18.94
258In Stock

Mfr. Part #
RAN-33860-B148

Mouser Part #
721-RAN-33860-B148

Knowles

Speakers & Transducers RECEIVER

Datasheet

258In Stock

$18.94

$14.73

$13.37

$12.46

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

108 dBA

14 Ohms

Rectangular

Speakers & Transducers RECEIVER ASSEMBLY

RAU-34832-B148
Knowles
1: $47.32
98In Stock

Mfr. Part #
RAU-34832-B148

Mouser Part #
721-RAU-34832-B148

Knowles

Speakers & Transducers RECEIVER ASSEMBLY

Datasheet

98In Stock

$47.32

$37.03

$33.72

$31.44

$29.88

Min.: 1
Mult.: 1

Earphones

Balanced Armature

122 dBA

14 Ohms

Rectangular

Speakers & Transducers RECEIVER

RDI-34006-000
Knowles
1: $51.14
63In Stock
100Expected 10/23/2026

Mfr. Part #
RDI-34006-000

Mouser Part #
721-RDI-34006-000

Knowles

Speakers & Transducers RECEIVER

Datasheet

63In Stock

100Expected 10/23/2026

$51.14

$40.04

$36.86

$34.01

View

Min.: 1
Mult.: 1

Earphones

Balanced Armature

141 dBA

25 Ohms

Rectangular

Speakers & Transducers Balanced Armature Speaker

CI-22960-000
Knowles
1: $35.56
84In Stock

Mfr. Part #
CI-22960-000

Mouser Part #
721-CI-22960-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

84In Stock

$35.56

$27.78

$25.27

$23.55

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

500 Hz

127 dBA

264 Ohms

Rectangular

Solder Pad

- 17 C

+ 63 C

9.47 mm

7.18 mm

4.19 mm

Speakers & Transducers Balanced Armature Speaker

ED-21913-000
Knowles
1: $29.71
144In Stock

Mfr. Part #
ED-21913-000

Mouser Part #
721-ED-21913-000

Knowles

Speakers & Transducers Balanced Armature Speaker

Datasheet

144In Stock

$29.71

$23.17

$21.07

$20.34

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

800 Hz

117 dBA

1.45 kOhms

Rectangular

Solder Pad

6.3 mm

4.29 mm

3.02 mm

Speakers & Transducers Balanced Armature Receiver,level sound

RAB-32063-000
Knowles
1: $21.91
162In Stock

Mfr. Part #
RAB-32063-000

Mouser Part #
721-RAB-32063-000

Knowles

Speakers & Transducers Balanced Armature Receiver,level sound

Learn More

Datasheet

162In Stock

$21.91

$16.99

$15.42

$14.36

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

10.8 kHz

116 dBA

41 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.15 mm

2.96 mm

2.6 mm

Speakers & Transducers Balanced Armature Receiver

RAB-32066-000
Knowles
1: $21.91
513In Stock
500Expected 8/7/2026

Mfr. Part #
RAB-32066-000

Mouser Part #
721-RAB-32066-000

Knowles

Speakers & Transducers Balanced Armature Receiver

Learn More

Datasheet

513In Stock

500Expected 8/7/2026

$21.91

$16.99

$15.42

$14.36

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

6.1 kHz

101.5 dBA

135 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.3 mm

3.28 mm

2.73 mm

Speakers & Transducers Balanced Armature Receiver, warm bass

RAB-32257-000
Knowles
1: $22.19
207In Stock
200Expected 9/4/2026

Mfr. Part #
RAB-32257-000

Mouser Part #
721-RAB32257000

Knowles

Speakers & Transducers Balanced Armature Receiver, warm bass

Learn More

Datasheet

207In Stock

200Expected 9/4/2026

$22.19

$16.93

$15.35

$14.30

View

Min.: 1
Mult.: 1

Receivers

Balanced Armature

Panel Mount

11 kHz

105.5 dBA

48 Ohms

Rectangular

Solder Pad

0 C

+ 63 C

5.15 mm

2.96 mm

2.6 mm

Balanced Armature Speakers & Transducers

Customer Service Office

Company

Resources

Support

70 Hz to 9.9 kHz
470 Hz
500 Hz
800 Hz
1 kHz
3.8 kHz
4 kHz
4.324 kHz
4.4 kHz
4.5 kHz
5 kHz
5.3 kHz
5.4 kHz
5.5 kHz
5.6 kHz
5.8 kHz
6 kHz
6.1 kHz
6.2 kHz
6.3 kHz

91 dBA
95 dBA
96 dBA
100 dBA
101 dBA
101.5 dBA
102.5 dBA
104 dBA
105.5 dBA
106 dBA
106.5 dBA
107 dBA
108 dBA
111.5 dBA
113.5 dBA
114 dBA
115 dBA
116 dBA
117 dBA
118 dBA

7 Ohms
7.1 Ohms
10.2 Ohms
13.3 Ohms
14 Ohms
14.5 Ohms
17 Ohms
22 Ohms
23 Ohms
24.4 Ohms
25 Ohms
28 Ohms
28.125 Ohms
30 Ohms
31.5 Ohms
37 Ohms
40.5 Ohms
41 Ohms
43 Ohms
48 Ohms

1.93 mm
1.98 mm
2.58 mm
2.59 mm
2.6 mm
2.73 mm
2.97 mm
3 mm
3.02 mm
3.8 mm
4 mm
4.01 mm
4.06 mm
4.1 mm
4.19 mm
4.36 mm
5.02 mm
5.03 mm
5.59 mm
6.3 mm