Stepped Attenuator


$29.00

Warranty
1 Year

 

24-Step Ladder-Type Attenuator - 10K Log – 2 Channel

 

Our stepped attenuator is made with thin film resistors 0.1% 25 ppm. A perfect companion for any high end audio device.

The most important feature of a two channel Attenuator, namely potentiometer, is how well it tracks: that is, how closely matched between the two channels and also the input impedance is kept unchanged for different volume. No volume control has perfect tracking: one channel will always have a little different from the other. Even well-trained ears are only sensitive enough to notice a difference of about 1dB, though, and for the average person the minimum noticeable difference is more like 3dB. Therefore, a step Attenuator is often employed in high-end audio products.

Features

  • E192 standard resistors with 24 step Attenuator
  • Ladder type structure, 0-23 (24) positions
  • Log scale attenuation
  • Rotary is Made-before-break
  • The available value is 10k
Technical Specifications

 

Resistor Table

The values of Rx, Ry and corresponding attenuation in dB is specified in the below Resistor Table. RT is set to 10K.

Steps

Attenuation in
dB: Right

Attenuation in
dB: Left

Rx in Ohms

Ry in Ohms

1

-69

-69

10000

0.001

2

-63

-63

10000

2

3

-60

-59

10000

4.02

4

-58

-57

10000

6.98

5

-53

-54

10000

13

6

-52

-53

10000

22.1

7

-48

-47

10000

40.2

8

-42

-42

9880

70.6

9

-39

-40

9880

113

10

-37

-36

9880

178

11

-33

-32

9760

252

12

-30

-29

9650

357

13

-27

-26

9530

499

14

-23

-23

9310

706

15

-20

-20

8980

1000

16

-17

-17

8560

1420

17

-14

-14

7960

2000

18

-12

-12

7500

2520

19

-10

-10

6810

3160

20

-8

-8

6040

3970

21

-6

-6

4990

4990

22

-4

-4

3700

6340

23

-2

-2

2050

7960

24

0

0

0

10000

 

NOTE: The table contains actual resistor values. Attenuation (in dB) measured with Allo PIANO DAC & VOLT test setup

 

Type Log Attenuation
Resistance 10K
Attenuation 0-75dB
Resistor Standard E192 (SMD)
Channels 2 (Left and Right)
Steps 24 (0-23)
Resistor Network Ladder
Dimensions Height: 81.2mm
Diameter: 39mm
Weight 82g

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