Bedienungsanleitung Roland DB-900 (Seite 7 von 20) (Englisch)

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Introduction

Main Features

FFP Technology ..................................

Equipped with a digital signal processor (DSP), the DB-900 is

a bass amp that utilizes FFP technology for both superior

performance and high power.

• The entire amp system’s acoustic dynamic range is

expanded, providing dynamic, powerful sound with

output power exceeding spec figures.

• The cabinet’s acoustic characteristics are improved for a

flat response extending into the low end, enhancing the

sound quality of the bass amp system as a whole.

• Speaker amplitude linearity is improved, resulting in

superb fidelity to input for clean, clear sound.

COSM Technology ..............................

The amplifier section models a variety of amps’ sonic

characteristics, with different tones based on differences in

amp configuration and circuitry, providing a range of

sounds, from a high-response, wide-range sound to tube-

amp overdrive.

Passive Radiator ................................

By combining the use of FFP technology with passive

radiators at both left and right sides, the DB-900 is able to

provide sound covering the full bass range, including the

critical ultra-low frequency range—without super-woofers!

D-Chorus............................................

This amp features a newly developed D-chorus that has been

specially tuned for bass. Dynamic band-division processing

is performed as appropriate for the input signal, to produce a

great chorus effect that does not impair the low-frequency

response even when you use “slap” playing techniques or

when you play harmonics.

Memory Storage Feature....................

You can store the settings for controls in memory A or

memory B (Memory feature). It’s also possible to call up the

contents of memory with a foot switch. This means you can

also change amp settings quickly during live performances.

3-Band Equalizer................................

The DB-900 is equipped with a three-band equalizer

featuring a parametric MIDDLE equalizer, which allows you

to create a wide variety of different sounds. Moreover, when

combined with the Shape switch, even more tonal variations

are possible.

Broad Expandability ..........................

The input and output connectors include a headphones jack

with optimized tonal correction, a high-performance XLR-

type DI connector, two types of Line Out jacks (an XLR type

and a balanced phone jack), and convenient Insert jacks for

connecting external effects units or other equipment, thus

providing support for a wide variety of applications.

MEMO

What’s FFP (Feed Forward Processing) Technology?

FFP is system control technology that optimizes the

performance of the amp, speakers, and cabinet characteristics

according to the signals being input, based on results of

analyses of the operation and behavior of each section of

existing amp systems.

MEMO

What’s COSM (Composite Object Sound Modeling)

Technology?

Technology that uses different means to create a virtual

reconstruction of physical structures, materials, and so on

that actually exist is called modeling technology. COSM is

proprietary technology from Roland that combines several

kinds of sound-modeling technology to create even newer

sounds.

Before You Use the DB-900

The factory-default control settings are stored in memory A and

memory B (p. 14). When you switch on the power for the first

time after purchase, the sounds play according to the settings in

memory A, regardless of the present control settings.

After that, starting with the next time you turn on the

power, sounds are played with the settings in effect

when the power was last switched off. For instance, if

you turn off the power while the settings in memory A

are in effect, sounds are played using the settings in

memory A the next time you turn on the power.

To Use the DB-900 Like a

Conventional Bass Amp

When you want to operate the DB-900 like a regular bass

amp, whereby settings are controlled directly with the knobs,

press the

MANUAL

button, illuminating its indicator.

NOTE

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