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T•231 features, Front panel features, Eq sliders – Tapco T-231 User Manual

Page 9: Input level, Hi-pass, Low-pass, Bypass, Clip, Range, Power

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9

T•231 Features

5. BYPASS

This button effectively disables the EQ circuits. You

can use this button to compare the EQ’d signal to

the unprocessed signal. When the BYPASS button is

pushed in, the LED below the BYPASS button lights.

6. CLIP

This LED lights when the output signal is within 5 dB

of clipping. It is okay if the CLIP LED blinks occasionally,

but if it blinks frequently or stays lit all the time, turn

down either the LEVEL control or the output signal

from the mixer or other device immediately preceding

the T•231.

7. RANGE

This determines the maximum boost and cut of

the EQ sliders, either ±12 dB or ± 6 dB (pushed in). The

corresponding LED below the RANGE button indicates

the setting.

The 12 dB setting provides more boost and cut if it

is needed for more drastic EQ requirements. The 6 dB

setting provides less boost and cut, but allows you to

fi ne tune the controls with more precision.

8. POWER

Use this switch to turn the T•231 on and off. The LED

above the switch lights when the power is on.

FRONT PANEL FEATURES

The controls for Channels 1 and 2 are the same, so

these descriptions apply to both channels.

1. EQ Sliders

When the EQ sliders are in the center position, they

have no effect on the signal. Move a slider up or

down to boost or cut a particular frequency by up to

±12 dB (±6 dB when the RANGE switch is set to 6 dB).

2. Input LEVEL

Use the Input LEVEL control to adjust the gain of the

signal as it passes through the T•231. When the Input

LEVEL control is in the center position, it provides no

gain (unity gain). When the slider is all the way down

the signal is off (-

∞), and all the way up provides 17 dB

of gain.

3. HI-PASS

This button is used to roll-off the frequencies below

40 Hz. The LED below the button lights to indicate

when the HI-PASS fi lter is turned on.

This is useful to reduce stage rumble (low-frequency

noise from footsteps picked up by microphones on

stage) and microphone-handling noise.

If the T•231 is used with monitor speakers, turning

on this button can reduce the muddiness caused by

the lows from the stage monitors feeding back into

the main output through the microphones.

4. LOW-PASS

Use this button to roll-off the frequencies above

16 kHz. The LED below the button lights to indicate

when the LOW-PASS fi lter is turned on.

This is useful to remove hiss and high-frequency

noise from the signal.

LEVEL

LEVEL

1

2

+17

0

-12

+12

+12

-12

+17

0

CLIP

RANGE

6dB 12dB

HI -PASS

LOW-PASS

40Hz

16kHz

CLIP

6dB 12dB

40Hz

16kHz

BYPASS

RANGE

HI -PASS

LOW-PASS

BYPASS

POWER

ON

OFF

DUAL 31- BAND GRAPHIC EQUALIZER

20

31.5

50

100

200

500

1.25k

2.5k

6.3k

12.5k

25

40

80

160

400

1k

2k

5k

10k

63

125

315

800

250

630

1.6k

4k

3.15k

8k

16k

20k

BY

BY

T•231

20

31.5

50

100

200

500

1.25k

2.5k

6.3k

12.5k

25

40

80

160

400

1k

2k

5k

10k

63

125

315

800

250

630

1.6k

4k

3.15k

8k

16k

20k

1

2

8

1

4

5

3

2

7

6