Marshall Amplification B 65 Rear Panel Features, B150, 17. D.I. Output with Earth Lift Switch

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15. FX Return

For connection from the output of an external effects processor or floor pedal.

16. Line Out

The Line Out Jack can be used for connection to home recording equipment for direct recording.

17. D.I. Output with Earth Lift Switch

The D.I. Output is designed for connection to professional recording or P.A. equipment.

Connecting a piece of audio electrical equipment which has been earthed to another piece of earthed electrical equipment, such as an amplifier and recording equipment, can result in a background hum. Should this problem occur, the B150 features an Earth Lift Switch which when used will alleviate the hum.

18. Power Switch

On/off mains power switch for the B150 with LED to indicate when on.

Rear Panel Features

1. Mains Input

For connection to the mains. Always ensure that a good quality mains lead is used and that the plug is wired in accordance with the regulations of your country.

The rear panel of the B150 features air vents to keep the amplifier cool. Care should be taken to ensure that these vents do not become obstructed while the amplifier is in use.

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Suggested Settings

Suggested Settings

80 Hz

160 Hz

320 Hz

640 Hz

1K 25Hz

2KHz

2.5KHz

B150

Input

E.Q.

+15dB

Before we look at some suggested

Slap

Volume

Slap

ACTIVE

PASSIVE

GAIN

BLEND

BASS

DEEP

BRIGHT

FX

FX

LINE

TREBLE

COMP

settings there are a couple of points

SEND

RETURN

OUT

0

EARTH

ON

that you should remember ;

POWER

LIMITER

LIFT

Power

1 / Taste in sound is a very

0

10

Solidstate

Valve

-15

+15

-15

+15

0

10

-15dB

0

10

personal thing. What might sound

D.I.

great to one bass player might not

On

appeal to another bassist. Therefore

these suggested settings may need

some alterations to suit your own

personal taste.

80 Hz

160 Hz

320 Hz

640 Hz

1K 25Hz

2KHz

2.5KHz

B150

Fingers

Input

E.Q.

+15dB

Fingers

2 / One of the main influences on

DEEP

BRIGHT

ACTIVE

GAIN

BLEND

BASS

Volume

FX

FX

LINE

your sound will be your bass. Each

PASSIVE

TREBLE

COMP

SEND

RETURN

OUT

bass displays certain tonal

0

POWER

EARTH

ON

characteristics, some for example

LIMITER

LIFT

Power

will sound brighter than others

0

10

Solidstate

Valve

-15

+15

-15

+15

0

10

-15dB

0

10

while others may sound bassier. For

D.I.

this reason again you may find that

Off

On

these suggested settings need some

alteration to give the required sound.

Here then follows three simple

Plectrum

80 Hz

160 Hz

320 Hz

640 Hz

1K 25Hz

2KHz

2.5KHz

B150

Plectrum

settings for the B150 for slap,

Input

DEEP

BRIGHT

+15dB

E.Q.

fingers and plectrum styles. We

Volume

ACTIVE

PASSIVE

GAIN

BLEND

BASS

TREBLE

COMP

FX

FX

LINE

hope that these settings provide you

SEND

RETURN

OUT

0

EARTH

POWER

with a useful starting point to

LIMITER

LIFT

ON

develop your own killer bass tones.

Power

0

10

Solidstate

Valve

-15

+15

-15

+15

0

10

-15dB

0

10

D.I.

Please Note : Gain and Volume

should be adjusted to taste.

On Off

B150

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