Control elements

CLEAN GAIN

This potentiometer controls the amount of preamplification provided by the class A solid-state stage. A range of up to +63 dB is provided. For more information, please see “Setting levels on the GainStation 8“ on page 16.

IMPORTANT NOTE: If a Lundahl input transformer is installed, add 7 dB to the printed values.

TUBE GAIN

This potentiometer controls the amount of preamplification provided by the tube stage. This stage follows the clean (solid- state) stage, so that the gain values of the two stages are addi- tive. Setting Clean Gain at 20 dB and Tube Gain at 15 dB results in 35 dB of total preamplification.

Turning the Tube Gain control fully counter-clockwise causes the tube stage to be deactivated and bypassed via a relay.

TIP: For optimal signal-noise ratios at high preamplification values, the majority of preamplification should be achieved via the solid-state stage, adding just enough of the tube stage for the desired sound. Due to the nature of tubes and tube circuitry, the tube stage is somewhat noisier than the solid-state stage.

OUTPUT LEVEL

This potentiometer adapts the output level to devices following in the chain or to the converter. At 0 dB the output level is equal to the internal level indicated by the LED display. The OUTPUT LEVEL control allows an additional 6 dB of amplification or 26 dB of reduction. The output level control is post-limiter to allow maximum levels to an external converter.

IMPORTANT NOTE: If the internal level is noticeably above +18 dB (the orange +18 dB LED is brightly illuminated) and the output level is set to +6 dB, the output level at the analog outputs can be up to +34 dBu. Please ensure that all other equipment can handle these levels to prevent possible damage.

 

 

 

 

N

G

 

 

A

 

E

 

AI

L

 

21 22

24 N

C

19

 

 

 

26

18

 

 

 

29

16

 

 

 

 

32

15

 

 

 

 

35

14

 

 

 

 

38

13

 

 

 

 

41

12

 

 

 

 

46

11

 

 

 

54

 

10

 

63

 

 

 

 

dB

 

 

Mic: +7dB

 

w/transformer

 

 

 

E G

 

 

 

B

AI

U

 

T

12

16

18 20

N

9

 

 

21

 

 

 

 

22

7.5

 

 

 

 

23

6

 

 

 

 

24

4

 

 

 

 

24.5

2.5

 

 

 

 

25

1

 

 

 

 

25.5

T

 

 

 

 

25.8

u

 

 

 

 

F b

 

 

 

26

e

 

 

 

t e

+

 

O

 

 

dB

 

ff

 

 

 

 

 

 

 

 

T

L

 

 

 

 

 

 

U

 

 

 

 

P

 

 

E

 

 

T

 

 

-9

 

V

U

 

-10

-8

 

E

 

 

-6

L

O

-12

 

 

 

-5

-14

 

 

 

 

 

 

-16

 

 

 

 

 

 

 

-2.5

-18

 

 

 

 

 

 

 

0

-20

 

 

 

 

 

 

 

2

-22

 

 

 

 

 

 

 

3.5

-24

 

 

 

 

 

 

 

5

-25

 

 

 

 

 

 

5.5

 

-26

 

dB

 

6

 

GainStation 8

11

Page 11
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Sound Performance Lab 2383 manual Control elements, Clean Gain, Tube Gain, Output Level

2383 specifications

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