Laney Amplification DB150c User Manual

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DB SERIES

USER MANUAL

MODEL :

DB150C
DB150H
DB300C
DB300H
DB400C
DB400H

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INTRODUCTION

Congratulations on your decision to purchase a amplifier.

products are designed with ease of operation as a primary objective, however to ensure you derive the best from

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your new amplifier, it is important you take time to read this user manual and to familiarise yourself with the control
functions and facilities available

BEFORE
SWITCHING ON

After unpacking your amplifier check that it is factory fitted with a three pin 'grounded' (or earthed) plug. Before
plugging into the power supply ensure you are connecting to a grounded earth outlet.

If you should wish to change the factory fitted plug yourself, ensure that the wiring convention applicable to the country
where the amplifier is to be used is strictly conformed to. As an example in the United Kingdom the cable colour code
for connections are as follows.

EARTH OR GROUND - GREEN/YELLOW
NEUTRAL - BLUE
LIVE - BROWN

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1

This manual has been written for easy access of information. The front and rear panels of each unit are graphically
illustrated, with each control and feature numbered. For a description of the function of each control feature, simply
check the number with the explanations adjacent to each panel.

Your bass amplifier has undergone a thorough two stage, pre-delivery inspection, involving actual play

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testing, as well as valve burn in. Valves are one of the most important components in your bass amp.
However they are also the most fragile component. The glass envelope and valve filaments can easily be damaged in
transit without any apparent signs of damage to the box, amp or valves.

When you first recieve your bass amp, follow these simple procedures:

(i) Ensure that the amplifier is set at the correct voltage for the country it is to be used in.

(ii) Connect your instrument with a high quality shielded instrument cable. Use of cheap cables will compromise the
sound of your instrument and your amplifier.

If there is a problem with your bass amplifierLaney DB

Laney DB

Laney DB

DON'T

DO

Care of your amplifier will prolong it's life.....and yours!.Laney

PHONE YOUR DEALER!

DB BASS MANUAL

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FRONT PANEL FEATURES

DB150C & DB150H

2

ACTIVE

PASSIVE

INPUT

14

LEVEL

LO

FET

1

1

15

FET GAIN

654

3

OK

HI

TUBE

2

2

7

8

2

1

9

10

0

PREAMPS

654

3

1

0

PRE

3

654

3

7

7

8

8

2

1

9

9

10

10

0

POST

TUBE

4

MID

PRESHAPE

16

TREBLE

-0+

1

1

2

2

3

3

4

4

5

5

0

-0+

1

1

2

2

HI

3

3

4

4

5

5

40Hz 80Hz

BASS

160Hz320Hz

65

DB300C, DB300H, DB400C & DB400H

22

21

FET GAIN

LEVEL

LOOKHI

PAD

INPUT

17

18

INPUTS:

1

Passive Input: High sensitivity input for instrument with normal output i.e. Passive.

Active Input: Low sensitivity input for instrument with active circuitry and high output.

654

3

7

8

2

1

9

10

0

PREAMPS

654

3

3

7

8

2

2

1

1

9

10

0

0

PRE

POST

TUBE

SUSTAIN

ATTACK

654

7

8

9

10

COMPRESSOR

3

2

1

0

LEVEL

20

654

3

7

8

2

1

9

10

0

654

7

MID

HI

8

9

10

PRESHAPE

3

2

ON

1

0

654

7

ON

ON

8

9

10

19

GRAPHIC EQ

0

2

650Hz 1k3Hz2k6Hz

5kHz

7

TREBLE

-0+

1

1

2

2

3

3

4

4

5

5

0 0

-0+
1

1

2

2

3

3

4

4

5

5

40Hz 80Hz

BASS

10kHz

BALANCE

160Hz

EQ

8

9

GRAPHIC EQGRAPHIC EQ

320Hz650Hz 1k3Hz2k6Hz

3

1

VOLUME

0

10

654

7

8

9

10

LIMIT

11

5kHz

10kHz

DB150C

NOISE
GATE

12

EQ

BALANCE

POWER

1

0

13

VOLUME

654

3

7

2

8

1

DB300H

9

NOISE

10

0

LIMIT

GATE

1

0

POWER

PRE AMP MODE SELECTOR:

2

by depressing the relevant switch. With no switches depressed the unit defaults to FET. To access both FET and Tube

Allows access to the different pre amp modes. Pre amp mode selection is achieved

pre amp sections depress both switches simultaneously.

TUBE PRE GAIN:

3

control to achieve the desired sound. To achieve a clean sound set the PRE gain level low whilst setting the POST gain

Sets the level of drive in the Tube pre amp circuit. Should be used in conjunction with POST gain

relatively high. To achieve a saturated pre amp sound set the PRE gain high and the POST gain relatively low.

POST GAIN:

4

PRE-SHAPE:

5

frequency responce of the amp whilst at the same time boosting the low end of the amplifier. The HI PRE SHAPE

Sets the level of post gain. See above for application.

Two factory set PRE-SHAPES are available. The MID PRE SHAPE produces an overall dip in the mid

boosts the upper end frequency response of the amplifier. Both these PRE SHAPES can be selected simultaneously to
provide a third factory pre set. These pre shapes can be further modified by the units BASS, MID and GRAPHIC EQ
sections. PRE SHAPES are footswitchable on all models except DB150C and DB150H.

BASS:

6

GRAPHIC:

7

the PRE-SHAPE can be further modified using the GRAPHIC.

BALANCE:

8

output level of the GRAPHIC. Lowering the slider cuts the output of the GRAPHIC. BALANCE has no effect when

Controls the overall bass response of the amplifier

Nine band GRAPHIC. When switched out the EQ will be set in a flat frequency response. Voicings set via

Balances the pre amplifier output level when the GRAPHIC is assigned. Raising the slider increases the

EQ is not selected

EQ:

9

10

Enables the onboard GRAPHIC. The GRAPHIC can also be switched via a footswitch on all models. FS2

DB150C/DB150H FS4 footswitch. on all remaining models.

VOLUME:

Sets the overall listening level of the amplifier

DB BASS MANUAL

DB BASS MANUAL