Bedienungsanleitung Velodyne SC-600D (Seite 14 von 26) (Englisch)

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8 - SC-600D Amplier User’s Manual

REAR PANEL CONNECTIONS —

DETAILED EXPLANATION

The SC-600D amplieris equipped withboth speaker-level and line-levelinputs. Use theRCA/Phono type

“INPUT” jacks when connecting from a pre-amp, signal processor, or line-level crossover. The “SPEAKER

LEVELINPUT”jacksconnectdirectlytothespeakeroutputsofanintegratedamplierorreceiver.Youramplier

sectionwillnoticenoadditionalloadingeectswhenyouusetheseinputsbecauseoftheirhighimpedance.

Note: Do not use both the RCA/Phono “INPUT” connections and “SPEAKER LEVEL INPUT” connections

simultaneously.

ABOUT LOW-PASS CROSSOVERS

AlloftheSC-600Damplierinputssumtheleftandrightchannelstogetherandtheresultingsignalispassed

throughanadjustablelow-passcrossoverbeforebeingamplied.Thecrossovercontrolallowsyoutoadjust

theupperlimitofthesubwoofer’sfrequencyresponsefrom30to160Hz.Thesubwoofer’sresponsewillbegin

rollingoabovethefrequencyyousetthiscontrolto.Theslopeis24dB/octave.

You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the

main speakers in your system. If your main speakers are smaller with limited low frequency output, you may

wishtochooseahigher frequency(such as 100 -120 Hz) than you would withlarger speakers which have

greaterlowfrequencyoutput.TheSC-600Damp’scrossoverhasadefaultof80Hz.

Mostreceiversandprocessorsprovideamenuoptioninwhichyoucancharacterizemainspeakersas“large”

or“small”speakers.Thisaectsthebasssignalspassedtothemainspeakers.Werecommendinmostcases

settingthe main speakers to “small,” despitetheirsizeandfrequencyresponsecharacteristics,allowingall

multi-channel bass and LFE signals to be passed to the SC-600D. This is because the powerful 400 watt SC-

600D amp combined with the SC-600 subwoofer are more likely suited to low bass reproduction than your amp

and main speaker. With the burden of low frequency reproduction relieved, your speakers will exhibit better

performance, and your overall system performance will improve.

Disabling the Low-Pass Crossover (Subwoofer Direct)

If your receiver/processor provides a crossed-over signal to the subwoofer, you may want to bypass the SC-

600Damp’slow-passcrossover.Todothis,depressBOTHtheCrossoverUPandCrossoverDOWNbuttons

simultaneously. The numeric LED will show -- indicating that the low-pass crossover has been defeated. To

reactivate the low-pass crossover, simply push the crossover UP or crossover DOWN buttons.

A WORD ABOUT YOUR HOME THEATER RECEIVER’S CROSSOVER AND THE SC-600D AMPLIFIER’S

CROSSOVER

YourVelodyneSC-600Damplierisdesignedtooperateusingthefullrangeaudiosignalforinputwhenusing

thebuilt-incrossover.Manyhometheaterprocessors/receivershavea“subwooferout”jackthatperformsthis

same function and are designed to be used with a powered subwoofer.

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