Rockford-fosgate 400x4 Manuel d'utilisateur télécharger pdf (Page 8)

◆ DSM (Discrete Surface Mount) Technology

The

DSM

(Discrete Surface Mount) manufacturing process com-

bines the advantages of both discrete components and integrated

circuitry. Rockford Fosgate is the only American amplifier manu-

facturer to have invested millions into this process. DSM compo-

nents differ from conventional discrete components in three

ways. They are more compact, more rugged, and they efficiently

dissipate generated heat. Using them wherever appropriate al-

lows the advantages associated with discrete circuitry to be

retained while also providing room for both highly advanced

processing features and generous PC board copper paths where

needed. Their short lead-out structures allow maximum audio

performance and highest signal-to-noise ratios to be obtained in

amplifiers of desirable package size without resorting to “ampli-

fier-on-a-chip” shortcuts. These advantages are shown in Figure 1.

Surface Mount

Thru-Hole

Solder

Component

Figure 1

THE RESULT: Fewer connections, improved reliability, shorter

signal paths, superior signal-to-noise ratio and awesome sonic

performance.

◆ XCard (Internal Crossover)

The Punch and Power amplifiers utilize internal active cross-

overs. These crossovers have many performance advantages such

as using discrete components for exact frequency adjustments

which are far superior to potentiometers. Additionally, the XCard

can be configured for high-pass, low-pass and full range opera-

tion. With slight modifications, many crossover frequencies and

slope configurations can be achieved.

THE RESULT: Increased system design flexibility with a precise

electronic crossover without the limitations of conventional

potentiometer designs.

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Rockford-fosgate 400x4 Manuel d'utilisateur Page 8