Bedienungsanleitung NAD C 390 DD (Seite 16 von 26) (Englisch)

493504

Zoom out

Zoom in

Vorherige Seite

1/26

Nächste Seite

SETUP MENU

Bass

Treble

Balance

}Setup

}Equalization

Polarity

Listening Mode

Speaker Compensation

Pre Out/Subwoofer

Soft Clipping

IR Channel

}Source Setup

The Setup menu consists of the following selectable and adjustable

parameters – Equalization, Polarity, Listening Mode, Speaker Compensation,

Pre Out/Subwoofer, Soft Clipping, IR Channel and Source Setup.

EQUALIZATION/ROOM EQ

Equalization

}~Room EQ On

`Room EQ Off

ROOM EQ ON

• Bring up Room EQ setup parameters. Calibrate Room EQ parameters by

following the procedure demonstrated in the “C 390DD Software and

Room EQ Feature Video” downloadable from the C 390DD web page

http://nadelectronics.com/products/hifi-amplifiers/C-390DD-Direct-

Digital-Powered-DAC-Amplifier.

• Enable congured Room EQ settings.

ROOM EQ OFF

• Defeat or disable Room EQ settings.

The ROOM EQ feature of the C 390DD is a simple and eective way to tame

standing waves without altering the upper frequency balance of your

loudspeakers.

Imagine a stone dropped into a small pool of water: waves ripple along

the surface in concentric circles until they reach the boundary of the pool,

at which time they are reected back toward the point where the stone

entered the water. As the reected wave travels back, it interacts with

the primary waves, causing a pattern of interference. Depending on the

spacing (frequency) of the waves, some will be nulled and some will be

reinforced or doubled in size. In the listening room, a similar pattern of

sound wave nulling or cancellation and sound wave reinforcement also

takes place.

The proximity of stereo loudspeakers to the listening room boundaries

creates “sound reections” that almost always result in uneven frequency

response at the listening position.

At higher frequencies these reections can be absorbed and scattered

randomly by the surface textures of wall coverings, drapes and furniture in

the room. But at the lower frequencies, the wave lengths are very large and

they interact with the room boundaries to create “standing waves” that can

alter the sound of music.

ROOM EQ TEST SEQUENCE

Our simple solution to this “standing waves” is the Room EQ. We have

devised a very simple test sequence to make the adjustments by ear (or

using an SPL meter). It uses the same concept musicians use to tune a

stringed instrument, with a slight twist: instead of matching frequency or

pitch, we are matching loudness levels.

Playing back the ROOM EQ TEST SEQUENCE allows this problem to be easily

tamed using your ears and the C 390DD Room EQ lters. The following are

the adjustable parameters.

}Freq Level EQ

40Hz 0dB Narrow

Frequency: There are six lters available in the frequency range where

standing waves typically are a problematical: 40Hz, 60Hz, 90Hz, 120Hz,

180Hz and 240Hz.

Level: The 6 frequency centers in the low bass region can be cut or

slightly boosted to remove the “boom” without reducing the low bass

response. Each lter can be boosted by up to 4dB or cut by up to 12dB in

2dB increments. The reason there is a smaller amount of boost than cut is

because boosting a null frequency actually increases the null making the

problem worse. Fortunately, the ear is less sensitive to sound missing than it

is to sound added. The objective is to tame the “boom” in the bass, resulting

to a much more incisive and realistic sound.

EQ: The width or “Q” of the lter can also be adjusted to be wide or narrow

to address a number of dierent room congurations.

IMPORTANT NOTE

The Room EQ Setup les along with corresponding setup instructions

can be downloaded from the “Software” section under “Manuals

and Downloads” of the C 390DD web page – http://nadelectronics.

com/products/hifi-amplifiers/C-390DD-Direct-Digital-Powered-DAC-

Amplifier.

POLARITY

Polarity

}~Positive

`Reversed

Allow compensation for recordings that have reversed polarity.

Positive: A positive sine wave at the input remains positive at the

output. Polarity is defaulted to “Positive” setting.

Reversed: A positive sine wave at the input is negative (inverted) or

reversed at the output.

OPERATION

USING THE C 390DD

ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

NAD C 390 DD Seite 16

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Andere Handbücher von NAD C 390 DD

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info