Audio Line Matching Transformers

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The purpose of this Transformer is to match the Impedance of the loudspeaker or a number of loudspeakers to the optimum load of the tube or transistor. In other words, the transformer transforms the Impedance of the speaker, so that the impedance which it presents to the primary winding is equal to the load of the Output stage active element (tube to transistor).

  • Dual Outputs: 4 & 8 Ohms.
  • Maximum Ambient Temperature: 40 deg C.
  • Frequency Response: 40Hz to 20,000Hz (-2dB).
  • Connections: 150 +/- 10mm multi stranded PVC wire. Stripped and Tinned.

 

Model

Volts (V)

Power Rating (W)

Impedance (Ohm)

Transformer Size

L

W

H

Mounting Type

M–70001

70

4 – 2 – 1 – 0.5

1.25K-2.5K-5K-10K

INT-41 x 16

43

18

35

"U" Bracket

M–70002

70

5 – 2 – 1 – 0.5

1K-2.5K-5K-10K

INT-41 x 16

43

18

35

"U" Bracket

M–70003

70

8 – 4 – 2 – 1

625-1.25K-2.5K-5K

T-12A x 16

51

19

42

"U" Bracket

M–70004

70

10 – 7.5 – 5 – 2.5

500-666-1K-2K

T-12A x 16

51

19

42

"U" Bracket

M–70005

70

16 – 8 – 4 – 2

312-625-1.25K-2.5K

T-23 x 19

60

22

49

"U" Bracket

M–70006

70

20 – 15 – 10 – 5

250-333-500-1K

T-23 x 19

60

22

49

"U" Bracket

M–70007

70

25 – 20 – 10

200-250-500

T-31 x 25.4

70

29

58

"U" Bracket

M–70008

70

32 – 16 – 8

156-312-625

T-31 x 25.4

70

29

58

"U" Bracket

M–70009

70

45 – 30 – 20

110-167-250

T-31 x 25.4

70

29

58

"U" Bracket

M–70010

70

50 – 30 – 15

100-167-333

T-15 x 31.75

76

35

67

"L" Clamps

M–70011

70

60 – 45 – 30

133-167-222

T-33 x 38.1

84

40

72

"L" Clamps

 

M–100001

100

5 – 2 – 1 – 0.5

2K-5K-10K-20K

INT-41 x 16

43

18

35

"U" Bracket

M–100002

100

6 – 4 – 2 – 1

1.67K-2.5K-5K-10K

INT-41 x 16

43

18

35

"U" Bracket

M–100003

100

10 – 7.5 – 5 – 2.5

1K-1.33K-2K-4K

T-12A x 16

51

19

42

"U" Bracket

M–100004

100

15 – 10 – 7.5 – 5

666-1K-1.33K-2K

T-23 x 19

60

22

49

"U" Bracket

M–100005

100

20 – 15 – 10 – 5

500-666-1K-2K

T-23 x 19

60

22

49

"U" Bracket

M–100006

100

25 – 20 – 15 – 10

400-500-666-1K

T-31 x 25.4

70

29

58

"U" Bracket

M–100007

100

30 – 20 – 15 – 10

333-500-666-1K

T-31 x 25.4

70

29

58

"U" Bracket

M–100008

100

35 – 30 – 25 – 10

285-333-400-1K

T-31 x 25.4

70

29

58

"U" Bracket

M–100009

100

50 – 40 – 30 – 20

200-250-333-500

T-15 x 31.75

76

35

67

"L" Clamps

M–100010

100

60 – 45 – 30

167-222-333

T-15 x 31.75

76

35

67

"L" Clamps

M–100011

100

75 – 60 - 45

133-167-222

T-33 x 38.1

84

40

72

"L" Clamps

 

Dimension in mm. Tol: +/- 2mm

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