PT7313E

V1.0

10

February 2010

TUNNING TONE CURVE CHARACTERISTICS

The tone control response character is possible tuned to match user’s wishes, please refer to following chart to realize

the characteristics between the different component values.

For the reasons to achieve low distortion and precision response gain, using high quality low tolerance X7R SMD

capacitor on tone circuit is recommended.

The loudness boost gain is adaptive with the master volume attenuation setting, more attenuation means more low

frequency boost, in the maximum volume the loudness boost will return to flat response.

-6

+16

-4

-2

+0

+2

+4

+6

+8

+10

+12

+14

d

B

g

A

10

20k

20

50 100 200

500 1k

2k

5k

Hz

-6

+16

-4

-2

+0

+2

+4

+6

+8

+10

+12

+14

d

B

g

A

10

50k

20

50 100 200 500 1k 2k

5k 10k 20k

Hz

PT7313E Bass Response VS CAP

PT7313E Treble Response VS CAP

-50

-10

-45

-40

-35

-30

-25

-20

-15

d

B

V

10

20k

20

50 100 200

500 1k

2k

5k

Hz

-80

+0

-70

-60

-50

-40

-30

-20

-10

d

B

g

A

20

20k

50

100

200

500

1k

2k

5k

10k

Hz

PT7313E Loudness Response VS CAP

(VOLUME=-40dB)

PT7313E Loudness Response VS Master Volume

2.7nF

1.5nF

1nF

68nF

150nF

100nF

56nF

100nF

220nF

OPEN